Sync sample prebuilts for lmp-docs

Synced to developers/samples/android commit c90e4cf627af4eb1c42b759a54baf3ab07998e27. Change-Id: I12bdf2049bd0c735a2385374ed13862b105247f6
author: Trevor Johns <trevorjohns@google.com> 2014-12-11 14:22:56 -0800
committer: Trevor Johns <trevorjohns@google.com> 2014-12-11 15:30:20 -0800
commit: f4852427259f175605844f385f0be2eb2ae0e5ec (patch)
tree: 8b5f06594a3c6de514c475786347ecbcd318d905 /prebuilts/gradle
parent: 5073d44d2b933234d20338d1daaabbc3e9c60d65 (diff)
download: build-f4852427259f175605844f385f0be2eb2ae0e5ec.tar.gz
345 files changed, 10309 insertions, 464 deletions
diff --git a/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle
index 1eb334ab..39b494bc 100644
--- a/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-Basic/Application/build.gradle
@@ -17,11 +17,11 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
-    compile "com.android.support:appcompat-v7:18.0.+"
+    compile "com.android.support:appcompat-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/.google/packaging.yaml b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/.google/packaging.yaml
index f30211c3..a799cfd4 100644
--- a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/.google/packaging.yaml
+++ b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/.google/packaging.yaml
@@ -9,4 +9,8 @@ categories:   [UI]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-ActionBarCompat-ListPopupMenu
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.support.v7.widget.PopupMenu
 license: apache2
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle
index af12607c..39b494bc 100644
--- a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/Application/build.gradle
@@ -17,11 +17,11 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
-    compile "com.android.support:appcompat-v7:+"
+    compile "com.android.support:appcompat-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/README.md b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/README.md
index 282ed60a..5a366eb8 100644
--- a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/README.md
+++ b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/README.md
@@ -1,8 +1,17 @@
 Android ActionBarCompat-ListPopupMenu Sample
 ===================================
 
-This sample shows you how to use {@link android.support.v7.widget.PopupMenu PopupMenu}
-from ActionBarCompat to create a list, with each item having a dropdown menu.
+This sample shows how to display a pop up menu using PopupMenu from the v7 appcompat library.
+
+Introduction
+------------
+
+This sample displays a list of items and for each item, an icon can be clicked. When it is clicked, a pop up menu is shown, placed below the item, using the [PopupMenu][1] from the v7 appcompat support library.
+
+The sample uses [ListFragment][2] from the v4 support library to display the list. It shows how to instantiate and display the [PopupMenu][1], as well as how to use `setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener())` to process the user actions on the [PopupMenu][1].
+
+[1]: https://developer.android.com/reference/android/support/v7/widget/PopupMenu.html
+[2]: https://developer.android.com/reference/android/support/v4/app/ListFragment.html
 
 Pre-requisites
 --------------
@@ -11,6 +20,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/1-main.png" height="400" alt="Screenshot"/> <img src="screenshots/2-popup.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/1-main.png b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/1-main.png
new file mode 100644
index 00000000..f69ed96f
--- /dev/null
+++ b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/1-main.png
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/2-popup.png b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/2-popup.png
new file mode 100644
index 00000000..b03862d1
--- /dev/null
+++ b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/2-popup.png
diff --git a/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/icon-web.png b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/icon-web.png
new file mode 100644
index 00000000..5220b83f
--- /dev/null
+++ b/prebuilts/gradle/ActionBarCompat-ListPopupMenu/screenshots/icon-web.png
diff --git a/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle
index 1eb334ab..39b494bc 100644
--- a/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-ShareActionProvider/Application/build.gradle
@@ -17,11 +17,11 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
-    compile "com.android.support:appcompat-v7:18.0.+"
+    compile "com.android.support:appcompat-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
diff --git a/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle b/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle
index 1eb334ab..8a24c4d1 100644
--- a/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle
+++ b/prebuilts/gradle/ActionBarCompat-Styled/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
     compile "com.android.support:appcompat-v7:18.0.+"
 }
diff --git a/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle b/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle
+++ b/prebuilts/gradle/ActivityInstrumentation/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle b/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle
index 28005541..c2ac02c4 100644
--- a/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle
+++ b/prebuilts/gradle/ActivitySceneTransitionBasic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
     compile "com.squareup.picasso:picasso:2.4.0"
 }
diff --git a/prebuilts/gradle/AdapterTransition/Application/build.gradle b/prebuilts/gradle/AdapterTransition/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/AdapterTransition/Application/build.gradle
+++ b/prebuilts/gradle/AdapterTransition/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle b/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle
+++ b/prebuilts/gradle/AdvancedImmersiveMode/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/AgendaData/.google/packaging.yaml b/prebuilts/gradle/AgendaData/.google/packaging.yaml
index 5b9e7913..0186ce1c 100644
--- a/prebuilts/gradle/AgendaData/.google/packaging.yaml
+++ b/prebuilts/gradle/AgendaData/.google/packaging.yaml
@@ -9,4 +9,10 @@ categories:   [Wearable]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-AgendaData
+level:        INTERMEDIATE
+icon:         Wearable/src/main/res/drawable-xxhdpi/ic_launcher.png
+apiRefs:
+    - android:android.app.IntentService
+    - com.google.android.gms.wearable.DataApi
+    - com.google.android.gms.wearable.Node
 license: apache2
diff --git a/prebuilts/gradle/AgendaData/README.md b/prebuilts/gradle/AgendaData/README.md
index 52ff0197..c1dcff10 100644
--- a/prebuilts/gradle/AgendaData/README.md
+++ b/prebuilts/gradle/AgendaData/README.md
@@ -1,11 +1,22 @@
 Android AgendaData Sample
 ===================================
 
-Syncs calendar events to your wearable at the press of a button, using the Wearable
-DataApi to transmit data such as event time, description, and background image. The DataItems can be
-deleted individually via an action on the event notifications, or all at once via a button on the
-companion. When deleted using the notification action, a ConfirmationActivity is used to indicate
-success or failure.
+Sample demonstrating sync of calendar events to a wearable by the press of a button.
+
+Introduction
+------------
+
+Using the Wearable [DataApi][1] allows to transmit data such as event time,
+description, and background image.
+
+The sent [DataItems][2] can be deleted individually via an action on the event notifications,
+or all at once via a button on the companion.
+
+When deleted using the notification action, a ConfirmationActivity is used to indicate
+success or failure. The sample shows implementations for both the success as well failure case.
+
+[1]: https://developer.android.com/reference/com/google/android/gms/wearable/DataApi.html
+[2]: https://developer.android.com/reference/com/google/android/gms/wearable/DataItem.html
 
 Pre-requisites
 --------------
@@ -14,6 +25,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/companion_agenda_data.png" height="400" alt="Screenshot"/> <img src="screenshots/dummy_calendar_event.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle b/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/AppRestrictionEnforcerFragment.java b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/AppRestrictionEnforcerFragment.java
index 6db54f65..8b0620fb 100644
--- a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/AppRestrictionEnforcerFragment.java
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/AppRestrictionEnforcerFragment.java
@@ -22,34 +22,34 @@ import android.content.Context;
 import android.content.RestrictionEntry;
 import android.content.RestrictionsManager;
 import android.content.SharedPreferences;
-import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.text.Editable;
+import android.text.TextUtils;
+import android.text.TextWatcher;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Button;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
 import android.widget.CompoundButton;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.Spinner;
 import android.widget.Switch;
-import android.widget.TextView;
 import android.widget.Toast;
 
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 /**
  * This fragment provides UI and functionality to set restrictions on the AppRestrictionSchema
  * sample.
  */
-public class AppRestrictionEnforcerFragment extends Fragment implements View.OnClickListener,
-        CompoundButton.OnCheckedChangeListener {
-
-    /**
-     * Package name of the AppRestrictionSchema sample.
-     */
-    private static final String PACKAGE_NAME_APP_RESTRICTION_SCHEMA
-            = "com.example.android.apprestrictionschema";
+public class AppRestrictionEnforcerFragment extends Fragment implements
+        CompoundButton.OnCheckedChangeListener, AdapterView.OnItemSelectedListener {
 
     /**
      * Key for {@link SharedPreferences}
@@ -62,15 +62,38 @@ public class AppRestrictionEnforcerFragment extends Fragment implements View.OnC
     private static final String RESTRICTION_KEY_SAY_HELLO = "can_say_hello";
 
     /**
-     * Default boolean value for "can_say_hello" restriction. The actual value is loaded in
-     * {@link #loadRestrictions(android.app.Activity)}.
+     * Key for the string restriction in AppRestrictionSchema.
+     */
+    private static final String RESTRICTION_KEY_MESSAGE = "message";
+
+    /**
+     * Key for the integer restriction in AppRestrictionSchema.
+     */
+    private static final String RESTRICTION_KEY_NUMBER = "number";
+
+    /**
+     * Key for the choice restriction in AppRestrictionSchema.
+     */
+    private static final String RESTRICTION_KEY_RANK = "rank";
+
+    /**
+     * Key for the multi-select restriction in AppRestrictionSchema.
      */
-    private boolean mDefaultValueRestrictionSayHello;
+    private static final String RESTRICTION_KEY_APPROVALS = "approvals";
+
+    private static final String DELIMETER = ",";
+
+    /**
+     * Current status of the restrictions.
+     */
+    private Bundle mCurrentRestrictions = new Bundle();
 
     // UI Components
-    private TextView mTextStatus;
-    private Button mButtonUnhide;
     private Switch mSwitchSayHello;
+    private EditText mEditMessage;
+    private EditText mEditNumber;
+    private Spinner mSpinnerRank;
+    private LinearLayout mLayoutApprovals;
 
     @Override
     public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@@ -80,152 +103,262 @@ public class AppRestrictionEnforcerFragment extends Fragment implements View.OnC
 
     @Override
     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
-        mTextStatus = (TextView) view.findViewById(R.id.status);
-        mButtonUnhide = (Button) view.findViewById(R.id.unhide);
+        // Retain references for the UI elements
         mSwitchSayHello = (Switch) view.findViewById(R.id.say_hello);
-        mButtonUnhide.setOnClickListener(this);
-        mSwitchSayHello.setOnCheckedChangeListener(this);
+        mEditMessage = (EditText) view.findViewById(R.id.message);
+        mEditNumber = (EditText) view.findViewById(R.id.number);
+        mSpinnerRank = (Spinner) view.findViewById(R.id.rank);
+        mLayoutApprovals = (LinearLayout) view.findViewById(R.id.approvals);
     }
 
     @Override
     public void onResume() {
         super.onResume();
-        updateUi(getActivity());
+        loadRestrictions(getActivity());
     }
 
     @Override
-    public void onClick(View view) {
-        switch (view.getId()) {
-            case R.id.unhide: {
-                unhideApp(getActivity());
+    public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+        switch (compoundButton.getId()) {
+            case R.id.say_hello: {
+                saveCanSayHello(getActivity(), checked);
+                break;
+            }
+            case R.id.approval: {
+                if (checked) {
+                    addApproval(getActivity(), (String) compoundButton.getTag());
+                } else {
+                    removeApproval(getActivity(), (String) compoundButton.getTag());
+                }
                 break;
             }
         }
     }
 
+    private TextWatcher mWatcherMessage = new EasyTextWatcher() {
+        @Override
+        public void afterTextChanged(Editable s) {
+            saveMessage(getActivity(), s.toString());
+        }
+    };
+
+    private TextWatcher mWatcherNumber = new EasyTextWatcher() {
+        @Override
+        public void afterTextChanged(Editable s) {
+            try {
+                String string = s.toString();
+                if (!TextUtils.isEmpty(string)) {
+                    saveNumber(getActivity(), Integer.parseInt(string));
+                }
+            } catch (NumberFormatException e) {
+                Toast.makeText(getActivity(), "Not an integer!", Toast.LENGTH_SHORT).show();
+            }
+        }
+    };
+
     @Override
-    public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
-        switch (compoundButton.getId()) {
-            case R.id.say_hello: {
-                allowSayHello(getActivity(), checked);
+    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+        switch (parent.getId()) {
+            case R.id.rank: {
+                saveRank(getActivity(), (String) parent.getAdapter().getItem(position));
                 break;
             }
         }
     }
 
+    @Override
+    public void onNothingSelected(AdapterView<?> parent) {
+        // Nothing to do
+    }
+
     /**
-     * Updates the UI components according to the current status of AppRestrictionSchema and its
-     * restriction.
+     * Loads the restrictions for the AppRestrictionSchema sample. In this implementation, we just
+     * read the default value for the "can_say_hello" restriction.
      *
      * @param activity The activity
      */
-    private void updateUi(Activity activity) {
-        PackageManager packageManager = activity.getPackageManager();
-        try {
-            ApplicationInfo info = packageManager.getApplicationInfo(
-                    PACKAGE_NAME_APP_RESTRICTION_SCHEMA, PackageManager.GET_UNINSTALLED_PACKAGES);
-            DevicePolicyManager devicePolicyManager =
-                    (DevicePolicyManager) activity.getSystemService(Activity.DEVICE_POLICY_SERVICE);
-            if (0 < (info.flags & ApplicationInfo.FLAG_INSTALLED)) {
-                if (!devicePolicyManager.isApplicationHidden(
-                        EnforcerDeviceAdminReceiver.getComponentName(activity),
-                        PACKAGE_NAME_APP_RESTRICTION_SCHEMA)) {
-                    // The app is ready
-                    loadRestrictions(activity);
-                    mTextStatus.setVisibility(View.GONE);
-                    mButtonUnhide.setVisibility(View.GONE);
-                    mSwitchSayHello.setVisibility(View.VISIBLE);
-                    mSwitchSayHello.setOnCheckedChangeListener(null);
-                    mSwitchSayHello.setChecked(canSayHello(activity));
-                    mSwitchSayHello.setOnCheckedChangeListener(this);
-                } else {
-                    // The app is installed but hidden in this profile
-                    mTextStatus.setText(R.string.status_not_activated);
-                    mTextStatus.setVisibility(View.VISIBLE);
-                    mButtonUnhide.setVisibility(View.VISIBLE);
-                    mSwitchSayHello.setVisibility(View.GONE);
-                }
-            } else {
-                // Need to reinstall the sample app
-                mTextStatus.setText(R.string.status_need_reinstall);
-                mTextStatus.setVisibility(View.VISIBLE);
-                mButtonUnhide.setVisibility(View.GONE);
-                mSwitchSayHello.setVisibility(View.GONE);
+    private void loadRestrictions(Activity activity) {
+        RestrictionsManager manager =
+                (RestrictionsManager) activity.getSystemService(Context.RESTRICTIONS_SERVICE);
+        List<RestrictionEntry> restrictions =
+                manager.getManifestRestrictions(Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA);
+        SharedPreferences prefs = activity.getSharedPreferences(PREFS_KEY, Context.MODE_PRIVATE);
+        for (RestrictionEntry restriction : restrictions) {
+            String key = restriction.getKey();
+            if (RESTRICTION_KEY_SAY_HELLO.equals(key)) {
+                updateCanSayHello(prefs.getBoolean(RESTRICTION_KEY_SAY_HELLO,
+                        restriction.getSelectedState()));
+            } else if (RESTRICTION_KEY_MESSAGE.equals(key)) {
+                updateMessage(prefs.getString(RESTRICTION_KEY_MESSAGE,
+                        restriction.getSelectedString()));
+            } else if (RESTRICTION_KEY_NUMBER.equals(key)) {
+                updateNumber(prefs.getInt(RESTRICTION_KEY_NUMBER,
+                        restriction.getIntValue()));
+            } else if (RESTRICTION_KEY_RANK.equals(key)) {
+                updateRank(activity, restriction.getChoiceValues(),
+                        prefs.getString(RESTRICTION_KEY_RANK, restriction.getSelectedString()));
+            } else if (RESTRICTION_KEY_APPROVALS.equals(key)) {
+                updateApprovals(activity, restriction.getChoiceValues(),
+                        TextUtils.split(prefs.getString(RESTRICTION_KEY_APPROVALS,
+                                        TextUtils.join(DELIMETER,
+                                                restriction.getAllSelectedStrings())),
+                                DELIMETER));
             }
-        } catch (PackageManager.NameNotFoundException e) {
-            mTextStatus.setText(R.string.status_not_installed);
-            mTextStatus.setVisibility(View.VISIBLE);
-            mButtonUnhide.setVisibility(View.GONE);
-            mSwitchSayHello.setVisibility(View.GONE);
+        }
+    }
+
+    private void updateCanSayHello(boolean canSayHello) {
+        mCurrentRestrictions.putBoolean(RESTRICTION_KEY_SAY_HELLO, canSayHello);
+        mSwitchSayHello.setOnCheckedChangeListener(null);
+        mSwitchSayHello.setChecked(canSayHello);
+        mSwitchSayHello.setOnCheckedChangeListener(this);
+    }
+
+    private void updateMessage(String message) {
+        mCurrentRestrictions.putString(RESTRICTION_KEY_MESSAGE, message);
+        mEditMessage.removeTextChangedListener(mWatcherMessage);
+        mEditMessage.setText(message);
+        mEditMessage.addTextChangedListener(mWatcherMessage);
+    }
+
+    private void updateNumber(int number) {
+        mCurrentRestrictions.putInt(RESTRICTION_KEY_NUMBER, number);
+        mEditNumber.removeTextChangedListener(mWatcherNumber);
+        mEditNumber.setText(String.valueOf(number));
+        mEditNumber.addTextChangedListener(mWatcherNumber);
+    }
+
+    private void updateRank(Context context, String[] ranks, String selectedRank) {
+        mCurrentRestrictions.putString(RESTRICTION_KEY_RANK, selectedRank);
+        mSpinnerRank.setAdapter(new ArrayAdapter<>(context,
+                android.R.layout.simple_spinner_dropdown_item, ranks));
+        mSpinnerRank.setSelection(search(ranks, selectedRank));
+        mSpinnerRank.setOnItemSelectedListener(this);
+    }
+
+    private void updateApprovals(Context context, String[] approvals,
+                                 String[] selectedApprovals) {
+        mCurrentRestrictions.putStringArray(RESTRICTION_KEY_APPROVALS, selectedApprovals);
+        mLayoutApprovals.removeAllViews();
+        for (String approval : approvals) {
+            Switch sw = new Switch(context);
+            sw.setText(approval);
+            sw.setTag(approval);
+            sw.setChecked(Arrays.asList(selectedApprovals).contains(approval));
+            sw.setOnCheckedChangeListener(this);
+            sw.setId(R.id.approval);
+            mLayoutApprovals.addView(sw);
         }
     }
 
     /**
-     * Unhides the AppRestrictionSchema sample in case it is hidden in this profile.
+     * Saves the value for the "cay_say_hello" restriction of AppRestrictionSchema.
      *
      * @param activity The activity
+     * @param allow    The value to be set for the restriction.
      */
-    private void unhideApp(Activity activity) {
-        DevicePolicyManager devicePolicyManager =
-                (DevicePolicyManager) activity.getSystemService(Activity.DEVICE_POLICY_SERVICE);
-        devicePolicyManager.setApplicationHidden(
-                EnforcerDeviceAdminReceiver.getComponentName(activity),
-                PACKAGE_NAME_APP_RESTRICTION_SCHEMA, false);
-        Toast.makeText(activity, "Enabled the app", Toast.LENGTH_SHORT).show();
-        updateUi(activity);
+    private void saveCanSayHello(Activity activity, boolean allow) {
+        mCurrentRestrictions.putBoolean(RESTRICTION_KEY_SAY_HELLO, allow);
+        saveRestrictions(activity);
+        // Note that the owner app needs to remember the restrictions on its own.
+        editPreferences(activity).putBoolean(RESTRICTION_KEY_SAY_HELLO, allow).apply();
     }
 
     /**
-     * Loads the restrictions for the AppRestrictionSchema sample. In this implementation, we just
-     * read the default value for the "can_say_hello" restriction.
+     * Saves the value for the "message" restriction of AppRestrictionSchema.
      *
      * @param activity The activity
+     * @param message  The value to be set for the restriction.
      */
-    private void loadRestrictions(Activity activity) {
-        RestrictionsManager restrictionsManager =
-                (RestrictionsManager) activity.getSystemService(Context.RESTRICTIONS_SERVICE);
-        List<RestrictionEntry> restrictions =
-                restrictionsManager.getManifestRestrictions(PACKAGE_NAME_APP_RESTRICTION_SCHEMA);
-        for (RestrictionEntry restriction : restrictions) {
-            if (RESTRICTION_KEY_SAY_HELLO.equals(restriction.getKey())) {
-                mDefaultValueRestrictionSayHello = restriction.getSelectedState();
-            }
-        }
+    private void saveMessage(Activity activity, String message) {
+        mCurrentRestrictions.putString(RESTRICTION_KEY_MESSAGE, message);
+        saveRestrictions(activity);
+        editPreferences(activity).putString(RESTRICTION_KEY_MESSAGE, message).apply();
     }
 
     /**
-     * Returns whether the AppRestrictionSchema is currently allowed to say hello to its user. Note
-     * that a profile/device owner needs to remember each restriction value on its own.
+     * Saves the value for the "number" restriction of AppRestrictionSchema.
      *
      * @param activity The activity
-     * @return True if the AppRestrictionSchema is allowed to say hello
+     * @param number   The value to be set for the restriction.
      */
-    private boolean canSayHello(Activity activity) {
-        SharedPreferences prefs = activity.getSharedPreferences(PREFS_KEY, Context.MODE_PRIVATE);
-        return prefs.getBoolean(RESTRICTION_KEY_SAY_HELLO, mDefaultValueRestrictionSayHello);
+    private void saveNumber(Activity activity, int number) {
+        mCurrentRestrictions.putInt(RESTRICTION_KEY_NUMBER, number);
+        saveRestrictions(activity);
+        editPreferences(activity).putInt(RESTRICTION_KEY_NUMBER, number).apply();
     }
 
     /**
-     * Sets the value for the "cay_say_hello" restriction of AppRestrictionSchema.
+     * Saves the value for the "rank" restriction of AppRestrictionSchema.
      *
      * @param activity The activity
-     * @param allow    The value to be set for the restriction.
+     * @param rank     The value to be set for the restriction.
      */
-    private void allowSayHello(Activity activity, boolean allow) {
+    private void saveRank(Activity activity, String rank) {
+        mCurrentRestrictions.putString(RESTRICTION_KEY_RANK, rank);
+        saveRestrictions(activity);
+        editPreferences(activity).putString(RESTRICTION_KEY_RANK, rank).apply();
+    }
+
+    private void addApproval(Activity activity, String approval) {
+        List<String> approvals = new ArrayList<>(Arrays.asList(
+                mCurrentRestrictions.getStringArray(RESTRICTION_KEY_APPROVALS)));
+        if (approvals.contains(approval)) {
+            return;
+        }
+        approvals.add(approval);
+        saveApprovals(activity, approvals.toArray(new String[approvals.size()]));
+    }
+
+    private void removeApproval(Activity activity, String approval) {
+        List<String> approvals = new ArrayList<>(Arrays.asList(
+                mCurrentRestrictions.getStringArray(RESTRICTION_KEY_APPROVALS)));
+        if (!approval.contains(approval)) {
+            return;
+        }
+        approvals.remove(approval);
+        saveApprovals(activity, approvals.toArray(new String[approvals.size()]));
+    }
+
+    /**
+     * Saves the value for the "approvals" restriction of AppRestrictionSchema.
+     *
+     * @param activity  The activity
+     * @param approvals The value to be set for the restriction.
+     */
+    private void saveApprovals(Activity activity, String[] approvals) {
+        mCurrentRestrictions.putStringArray(RESTRICTION_KEY_APPROVALS, approvals);
+        saveRestrictions(activity);
+        editPreferences(activity).putString(RESTRICTION_KEY_APPROVALS,
+                TextUtils.join(DELIMETER, approvals)).apply();
+    }
+
+    private void saveRestrictions(Activity activity) {
         DevicePolicyManager devicePolicyManager
                 = (DevicePolicyManager) activity.getSystemService(Context.DEVICE_POLICY_SERVICE);
-        Bundle restrictions = new Bundle();
-        restrictions.putBoolean(RESTRICTION_KEY_SAY_HELLO, allow);
         devicePolicyManager.setApplicationRestrictions(
                 EnforcerDeviceAdminReceiver.getComponentName(activity),
-                PACKAGE_NAME_APP_RESTRICTION_SCHEMA, restrictions);
-        // The profile/device owner needs to remember the current state of restrictions on its own
-        activity.getSharedPreferences(PREFS_KEY, Context.MODE_PRIVATE)
-                .edit()
-                .putBoolean(RESTRICTION_KEY_SAY_HELLO, allow)
-                .apply();
-        Toast.makeText(activity, allow ? R.string.allowed : R.string.disallowed,
-                Toast.LENGTH_SHORT).show();
+                Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA, mCurrentRestrictions);
+    }
+
+    private SharedPreferences.Editor editPreferences(Activity activity) {
+        return activity.getSharedPreferences(PREFS_KEY, Context.MODE_PRIVATE).edit();
+    }
+
+    /**
+     * Sequential search
+     *
+     * @param array The string array
+     * @param s     The string to search for
+     * @return Index if found. -1 if not found.
+     */
+    private int search(String[] array, String s) {
+        for (int i = 0; i < array.length; ++i) {
+            if (s.equals(array[i])) {
+                return i;
+            }
+        }
+        return -1;
     }
 
 }
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/Constants.java b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/Constants.java
new file mode 100644
index 00000000..bb4e958c
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/Constants.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apprestrictionenforcer;
+
+public interface Constants {
+
+    /**
+     * Package name of the AppRestrictionSchema sample.
+     */
+    public static final String PACKAGE_NAME_APP_RESTRICTION_SCHEMA
+            = "com.example.android.apprestrictionschema";
+
+}
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/EasyTextWatcher.java b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/EasyTextWatcher.java
new file mode 100644
index 00000000..8e0abb44
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/EasyTextWatcher.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apprestrictionenforcer;
+
+import android.text.TextWatcher;
+
+/**
+ * This is a wrapper around {@link TextWatcher} that overrides
+ * {@link TextWatcher#beforeTextChanged(CharSequence, int, int, int)} and
+ * {@link TextWatcher#onTextChanged(CharSequence, int, int, int)} with empty bodies.
+ */
+public abstract class EasyTextWatcher implements TextWatcher {
+
+    @Override
+    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
+        // Do nothing
+    }
+
+    @Override
+    public void onTextChanged(CharSequence s, int start, int before, int count) {
+        // Do nothing
+    }
+
+}
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/MainActivity.java b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/MainActivity.java
index 72224e17..c6b012be 100644
--- a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/MainActivity.java
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/MainActivity.java
@@ -18,24 +18,44 @@ package com.example.android.apprestrictionenforcer;
 
 import android.app.admin.DevicePolicyManager;
 import android.content.Context;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
 import android.os.Bundle;
 import android.support.v4.app.FragmentActivity;
 
-public class MainActivity extends FragmentActivity {
+public class MainActivity extends FragmentActivity implements StatusFragment.StatusUpdatedListener {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main_real);
         if (null == savedInstanceState) {
-            DevicePolicyManager manager = (DevicePolicyManager)
-                    getSystemService(Context.DEVICE_POLICY_SERVICE);
-            if (manager.isProfileOwnerApp(getApplicationContext().getPackageName())) {
-                // If the managed profile is already set up, we show the main screen.
-                showMainFragment();
-            } else {
-                // If not, we show the set up screen.
+            DevicePolicyManager devicePolicyManager =
+                    (DevicePolicyManager) getSystemService(Context.DEVICE_POLICY_SERVICE);
+            PackageManager packageManager = getPackageManager();
+            if (!devicePolicyManager.isProfileOwnerApp(getApplicationContext().getPackageName())) {
+                // If the managed profile is not yet set up, we show the setup screen.
                 showSetupProfile();
+            } else {
+                try {
+                    ApplicationInfo info = packageManager.getApplicationInfo(
+                            Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA,
+                            PackageManager.GET_UNINSTALLED_PACKAGES);
+                    if (0 == (info.flags & ApplicationInfo.FLAG_INSTALLED)) {
+                        // Need to reinstall the sample app
+                        showStatusProfile();
+                    } else if (devicePolicyManager.isApplicationHidden(
+                            EnforcerDeviceAdminReceiver.getComponentName(this),
+                            Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA)) {
+                        // The app is installed but hidden in this profile
+                        showStatusProfile();
+                    } else {
+                        // Everything is clear; show the main screen
+                        showMainFragment();
+                    }
+                } catch (PackageManager.NameNotFoundException e) {
+                    showStatusProfile();
+                }
             }
         }
     }
@@ -46,10 +66,21 @@ public class MainActivity extends FragmentActivity {
                 .commit();
     }
 
+    private void showStatusProfile() {
+        getSupportFragmentManager().beginTransaction()
+                .replace(R.id.container, new StatusFragment())
+                .commit();
+    }
+
     private void showMainFragment() {
         getSupportFragmentManager().beginTransaction()
                 .replace(R.id.container, new AppRestrictionEnforcerFragment())
                 .commit();
     }
 
+    @Override
+    public void onStatusUpdated() {
+        showMainFragment();
+    }
+
 }
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/StatusFragment.java b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/StatusFragment.java
new file mode 100644
index 00000000..f4a4eb79
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/java/com/example/android/apprestrictionenforcer/StatusFragment.java
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apprestrictionenforcer;
+
+import android.app.Activity;
+import android.app.admin.DevicePolicyManager;
+import android.content.pm.ApplicationInfo;
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+import android.widget.Toast;
+
+/**
+ * Provides UI for enabling the target app in this profile. The status of the app can be
+ * uninstalled, hidden, or enabled depending on the situations. This fragment shows suitable
+ * controls for each status.
+ */
+public class StatusFragment extends Fragment implements View.OnClickListener {
+
+    private TextView mTextStatus;
+    private Button mButtonUnhide;
+    private StatusUpdatedListener mListener;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_status, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        mTextStatus = (TextView) view.findViewById(R.id.status);
+        mButtonUnhide = (Button) view.findViewById(R.id.unhide);
+        mButtonUnhide.setOnClickListener(this);
+    }
+
+    @Override
+    public void onAttach(Activity activity) {
+        super.onAttach(activity);
+        mListener = (StatusUpdatedListener) activity;
+    }
+
+    @Override
+    public void onDetach() {
+        mListener = null;
+        super.onDetach();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        updateUi(getActivity());
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.unhide: {
+                unhideApp(getActivity());
+                break;
+            }
+        }
+    }
+
+    private void updateUi(Activity activity) {
+        PackageManager packageManager = activity.getPackageManager();
+        try {
+            ApplicationInfo info = packageManager.getApplicationInfo(
+                    Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA,
+                    PackageManager.GET_UNINSTALLED_PACKAGES);
+            DevicePolicyManager devicePolicyManager =
+                    (DevicePolicyManager) activity.getSystemService(Activity.DEVICE_POLICY_SERVICE);
+            if ((info.flags & ApplicationInfo.FLAG_INSTALLED) != 0) {
+                if (!devicePolicyManager.isApplicationHidden(
+                        EnforcerDeviceAdminReceiver.getComponentName(activity),
+                        Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA)) {
+                    // The app is ready to enforce restrictions
+                    // This is unlikely to happen in this sample as unhideApp() handles it.
+                    mListener.onStatusUpdated();
+                } else {
+                    // The app is installed but hidden in this profile
+                    mTextStatus.setText(R.string.status_not_activated);
+                    mButtonUnhide.setVisibility(View.VISIBLE);
+                }
+            } else {
+                // Need to reinstall the sample app
+                mTextStatus.setText(R.string.status_need_reinstall);
+                mButtonUnhide.setVisibility(View.GONE);
+            }
+        } catch (PackageManager.NameNotFoundException e) {
+            // Need to reinstall the sample app
+            mTextStatus.setText(R.string.status_need_reinstall);
+            mButtonUnhide.setVisibility(View.GONE);
+        }
+    }
+
+    /**
+     * Unhides the AppRestrictionSchema sample in case it is hidden in this profile.
+     *
+     * @param activity The activity
+     */
+    private void unhideApp(Activity activity) {
+        DevicePolicyManager devicePolicyManager =
+                (DevicePolicyManager) activity.getSystemService(Activity.DEVICE_POLICY_SERVICE);
+        devicePolicyManager.setApplicationHidden(
+                EnforcerDeviceAdminReceiver.getComponentName(activity),
+                Constants.PACKAGE_NAME_APP_RESTRICTION_SCHEMA, false);
+        Toast.makeText(activity, "Enabled the app", Toast.LENGTH_SHORT).show();
+        mListener.onStatusUpdated();
+    }
+
+    public interface StatusUpdatedListener {
+        public void onStatusUpdated();
+    }
+
+}
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/fragment_app_restriction_enforcer.xml b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/fragment_app_restriction_enforcer.xml
index e6c50a24..01181916 100644
--- a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/fragment_app_restriction_enforcer.xml
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/fragment_app_restriction_enforcer.xml
@@ -14,31 +14,111 @@
   See the License for the specific language governing permissions and
   limitations under the License.
 -->
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:paddingBottom="@dimen/vertical_page_margin"
-    android:paddingLeft="@dimen/horizontal_page_margin"
-    android:paddingRight="@dimen/horizontal_page_margin"
-    android:paddingTop="@dimen/vertical_page_margin">
-
-    <TextView
-        android:id="@+id/status"
+    android:layout_height="match_parent">
+
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="@string/status_not_installed" />
+        android:orientation="vertical"
+        android:paddingBottom="@dimen/vertical_page_margin"
+        android:paddingLeft="@dimen/horizontal_page_margin"
+        android:paddingRight="@dimen/horizontal_page_margin"
+        android:paddingTop="@dimen/vertical_page_margin">
 
-    <Button
-        android:id="@+id/unhide"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/unhide" />
 
-    <Switch
-        android:id="@+id/say_hello"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/allow_saying_hello" />
+        <Switch
+            android:id="@+id/say_hello"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/allow_saying_hello"/>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/vertical_page_margin"
+            android:orientation="horizontal">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:labelFor="@id/message"
+                android:text="@string/message"/>
+
+            <EditText
+                android:id="@id/message"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:inputType="text"
+                android:maxLines="1"/>
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/vertical_page_margin"
+            android:orientation="horizontal">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:labelFor="@id/number"
+                android:text="@string/number"/>
+
+            <EditText
+                android:id="@id/number"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:inputType="number"
+                android:maxLines="1"/>
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/vertical_page_margin"
+            android:orientation="horizontal">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/rank"/>
+
+            <Spinner
+                android:id="@+id/rank"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="@dimen/margin_small"/>
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="@dimen/vertical_page_margin"
+            android:orientation="horizontal">
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/approvals"/>
+
+            <LinearLayout
+                android:id="@+id/approvals"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="@dimen/margin_small"
+                android:orientation="vertical"/>
+
+        </LinearLayout>
+
+    </LinearLayout>
 
-</LinearLayout>
+</ScrollView>
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/fragment_status.xml b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/fragment_status.xml
new file mode 100644
index 00000000..a2d60eb7
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/fragment_status.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical"
+    android:paddingBottom="@dimen/vertical_page_margin"
+    android:paddingLeft="@dimen/horizontal_page_margin"
+    android:paddingRight="@dimen/horizontal_page_margin"
+    android:paddingTop="@dimen/vertical_page_margin">
+
+    <TextView
+        android:id="@+id/status"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/status_not_installed"/>
+
+    <Button
+        android:id="@+id/unhide"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/unhide"/>
+
+</LinearLayout>
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/separator.xml b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/separator.xml
new file mode 100644
index 00000000..6927d801
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/layout/separator.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<View xmlns:android="http://schemas.android.com/apk/res/android"
+      android:layout_width="match_parent"
+      android:layout_height="1dp"
+      android:layout_marginBottom="@dimen/margin_medium"
+      android:layout_marginTop="@dimen/margin_medium"
+      android:background="#9000"/>
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/values/ids.xml b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/values/ids.xml
new file mode 100644
index 00000000..04ba4ec2
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/values/ids.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<resources>
+    <item name="message" type="id"/>
+    <item name="number" type="id"/>
+    <item name="approval" type="id"/>
+</resources>
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/values/strings.xml b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/values/strings.xml
index 3029e046..e35daee3 100644
--- a/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/values/strings.xml
+++ b/prebuilts/gradle/AppRestrictionEnforcer/Application/src/main/res/values/strings.xml
@@ -25,4 +25,8 @@
     <string name="allowed">Allowed</string>
     <string name="disallowed">Disallowed</string>
     <string name="profile_name">AppRestrictionEnforcer </string>
+    <string name="message">Message: </string>
+    <string name="number">Number: </string>
+    <string name="rank">Rank: </string>
+    <string name="approvals">Approvals: </string>
 </resources>
diff --git a/prebuilts/gradle/AppRestrictionEnforcer/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/AppRestrictionEnforcer/gradle/wrapper/gradle-wrapper.properties
index 0c71e760..f2e517b2 100644
--- a/prebuilts/gradle/AppRestrictionEnforcer/gradle/wrapper/gradle-wrapper.properties
+++ b/prebuilts/gradle/AppRestrictionEnforcer/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-#Wed Apr 10 15:27:10 PDT 2013
+#Mon Dec 01 16:00:44 JST 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle b/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/java/com/example/android/apprestrictionschema/AppRestrictionSchemaFragment.java b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/java/com/example/android/apprestrictionschema/AppRestrictionSchemaFragment.java
index 76f024f3..7b8dba83 100644
--- a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/java/com/example/android/apprestrictionschema/AppRestrictionSchemaFragment.java
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/java/com/example/android/apprestrictionschema/AppRestrictionSchemaFragment.java
@@ -17,10 +17,12 @@
 package com.example.android.apprestrictionschema;
 
 import android.content.Context;
+import android.content.RestrictionEntry;
 import android.content.RestrictionsManager;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -30,6 +32,8 @@ import android.widget.Toast;
 
 import com.example.android.common.logger.Log;
 
+import java.util.List;
+
 /**
  * Pressing the button on this fragment pops up a simple Toast message. The button is enabled or
  * disabled according to the restrictions set by device/profile owner. You can use the
@@ -40,9 +44,21 @@ public class AppRestrictionSchemaFragment extends Fragment implements View.OnCli
     // Tag for the logger
     private static final String TAG = "AppRestrictionSchemaFragment";
 
+    private static final String KEY_CAN_SAY_HELLO = "can_say_hello";
+    private static final String KEY_MESSAGE = "message";
+    private static final String KEY_NUMBER = "number";
+    private static final String KEY_RANK = "rank";
+    private static final String KEY_APPROVALS = "approvals";
+
+    // Message to show when the button is clicked (String restriction)
+    private String mMessage;
+
     // UI Components
     private TextView mTextSayHello;
     private Button mButtonSayHello;
+    private TextView mTextNumber;
+    private TextView mTextRank;
+    private TextView mTextApprovals;
 
     @Override
     public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
@@ -54,48 +70,103 @@ public class AppRestrictionSchemaFragment extends Fragment implements View.OnCli
     public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
         mTextSayHello = (TextView) view.findViewById(R.id.say_hello_explanation);
         mButtonSayHello = (Button) view.findViewById(R.id.say_hello);
+        mTextNumber = (TextView) view.findViewById(R.id.your_number);
+        mTextRank = (TextView) view.findViewById(R.id.your_rank);
+        mTextApprovals = (TextView) view.findViewById(R.id.approvals_you_have);
         mButtonSayHello.setOnClickListener(this);
     }
 
     @Override
     public void onResume() {
         super.onResume();
-        // Update the UI according to the configured restrictions
-        RestrictionsManager restrictionsManager =
+        resolveRestrictions();
+    }
+
+    private void resolveRestrictions() {
+        RestrictionsManager manager =
                 (RestrictionsManager) getActivity().getSystemService(Context.RESTRICTIONS_SERVICE);
-        Bundle restrictions = restrictionsManager.getApplicationRestrictions();
-        updateUI(restrictions);
+        Bundle restrictions = manager.getApplicationRestrictions();
+        List<RestrictionEntry> entries = manager.getManifestRestrictions(getActivity().getApplicationContext().getPackageName());
+        for (RestrictionEntry entry : entries) {
+            String key = entry.getKey();
+            Log.d(TAG, "key: " + key);
+            if (key.equals(KEY_CAN_SAY_HELLO)) {
+                updateCanSayHello(entry, restrictions);
+            } else if (key.equals(KEY_MESSAGE)) {
+                updateMessage(entry, restrictions);
+            } else if (key.equals(KEY_NUMBER)) {
+                updateNumber(entry, restrictions);
+            } else if (key.equals(KEY_RANK)) {
+                updateRank(entry, restrictions);
+            } else if (key.equals(KEY_APPROVALS)) {
+                updateApprovals(entry, restrictions);
+            }
+        }
+    }
+
+    private void updateCanSayHello(RestrictionEntry entry, Bundle restrictions) {
+        boolean canSayHello;
+        if (restrictions == null || !restrictions.containsKey(KEY_CAN_SAY_HELLO)) {
+            canSayHello = entry.getSelectedState();
+        } else {
+            canSayHello = restrictions.getBoolean(KEY_CAN_SAY_HELLO);
+        }
+        mTextSayHello.setText(canSayHello ?
+                R.string.explanation_can_say_hello_true :
+                R.string.explanation_can_say_hello_false);
+        mButtonSayHello.setEnabled(canSayHello);
     }
 
-    private void updateUI(Bundle restrictions) {
-        if (canSayHello(restrictions)) {
-            mTextSayHello.setText(R.string.explanation_can_say_hello_true);
-            mButtonSayHello.setEnabled(true);
+    private void updateMessage(RestrictionEntry entry, Bundle restrictions) {
+        if (restrictions == null || !restrictions.containsKey(KEY_MESSAGE)) {
+            mMessage = entry.getSelectedString();
         } else {
-            mTextSayHello.setText(R.string.explanation_can_say_hello_false);
-            mButtonSayHello.setEnabled(false);
+            mMessage = restrictions.getString(KEY_MESSAGE);
         }
     }
 
-    /**
-     * Returns the current status of the restriction.
-     *
-     * @param restrictions The application restrictions
-     * @return True if the app is allowed to say hello
-     */
-    private boolean canSayHello(Bundle restrictions) {
-        final boolean defaultValue = false;
-        boolean canSayHello = restrictions == null ? defaultValue :
-                restrictions.getBoolean("can_say_hello", defaultValue);
-        Log.d(TAG, "canSayHello: " + canSayHello);
-        return canSayHello;
+    private void updateNumber(RestrictionEntry entry, Bundle restrictions) {
+        int number;
+        if (restrictions == null || !restrictions.containsKey(KEY_NUMBER)) {
+            number = entry.getIntValue();
+        } else {
+            number = restrictions.getInt(KEY_NUMBER);
+        }
+        mTextNumber.setText(getString(R.string.your_number, number));
+    }
+
+    private void updateRank(RestrictionEntry entry, Bundle restrictions) {
+        String rank;
+        if (restrictions == null || !restrictions.containsKey(KEY_RANK)) {
+            rank = entry.getSelectedString();
+        } else {
+            rank = restrictions.getString(KEY_RANK);
+        }
+        mTextRank.setText(getString(R.string.your_rank, rank));
+    }
+
+    private void updateApprovals(RestrictionEntry entry, Bundle restrictions) {
+        String[] approvals;
+        if (restrictions == null || !restrictions.containsKey(KEY_APPROVALS)) {
+            approvals = entry.getAllSelectedStrings();
+        } else {
+            approvals = restrictions.getStringArray(KEY_APPROVALS);
+        }
+        String text;
+        if (approvals == null || approvals.length == 0) {
+            text = getString(R.string.none);
+        } else {
+            text = TextUtils.join(", ", approvals);
+        }
+        mTextApprovals.setText(getString(R.string.approvals_you_have, text));
     }
 
     @Override
     public void onClick(View view) {
         switch (view.getId()) {
             case R.id.say_hello: {
-                Toast.makeText(getActivity(), R.string.message_hello, Toast.LENGTH_SHORT).show();
+                Toast.makeText(getActivity(), getString(R.string.message, mMessage),
+                        Toast.LENGTH_SHORT).show();
                 break;
             }
         }
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/layout/fragment_app_restriction_schema.xml b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/layout/fragment_app_restriction_schema.xml
index fc5e23dc..18ca0a4d 100644
--- a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/layout/fragment_app_restriction_schema.xml
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/layout/fragment_app_restriction_schema.xml
@@ -14,24 +14,60 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 -->
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    android:padding="@dimen/margin_medium">
-
-    <TextView
-        android:id="@+id/say_hello_explanation"
+
+
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+            xmlns:tools="http://schemas.android.com/tools"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent">
+
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="@string/explanation_can_say_hello_true"
-        android:textAppearance="?android:attr/textAppearanceMedium" />
+        android:orientation="vertical"
+        android:padding="@dimen/margin_medium">
 
-    <Button
-        android:id="@+id/say_hello"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_marginStart="@dimen/margin_medium"
-        android:text="@string/action_can_say_hello" />
+        <TextView
+            android:id="@+id/say_hello_explanation"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            tools:text="@string/explanation_can_say_hello_true"/>
+
+        <Button
+            android:id="@+id/say_hello"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginStart="@dimen/margin_medium"
+            android:text="@string/action_can_say_hello"/>
+
+        <include layout="@layout/separator"/>
+
+        <TextView
+            android:id="@+id/your_number"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            tools:text="@string/your_number"/>
+
+        <include layout="@layout/separator"/>
+
+        <TextView
+            android:id="@+id/your_rank"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            tools:text="@string/your_rank"/>
+
+        <include layout="@layout/separator"/>
+
+        <TextView
+            android:id="@+id/approvals_you_have"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            tools:text="@string/approvals_you_have"/>
+
+    </LinearLayout>
 
-</LinearLayout>
+</ScrollView>
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/layout/separator.xml b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/layout/separator.xml
new file mode 100644
index 00000000..6927d801
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/layout/separator.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<View xmlns:android="http://schemas.android.com/apk/res/android"
+      android:layout_width="match_parent"
+      android:layout_height="1dp"
+      android:layout_marginBottom="@dimen/margin_medium"
+      android:layout_marginTop="@dimen/margin_medium"
+      android:background="#9000"/>
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/values/restriction_values.xml b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/values/restriction_values.xml
new file mode 100644
index 00000000..558d097f
--- /dev/null
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/values/restriction_values.xml
@@ -0,0 +1,77 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<resources>
+
+    <!-- Bool restriction -->
+    <string name="title_can_say_hello">Can say hello</string>
+    <string name="description_can_say_hello">Whether the app can say hello to the user</string>
+    <bool name="default_can_say_hello">false</bool>
+
+    <!-- String restriction -->
+    <string name="title_message">Message</string>
+    <string name="description_message">A message string to show</string>
+    <string name="default_message">Hello!</string>
+
+    <!-- Integer restriction -->
+    <string name="title_number">Number</string>
+    <string name="description_number">Sample integer value</string>
+    <integer name="default_number">32582657</integer>
+
+    <!-- Choice restriction -->
+    <string name="title_rank">Rank</string>
+    <string name="description_rank">Rank of the user</string>
+    <string-array name="entries_rank">
+        <item>Apprentice</item>
+        <item>Intermediate</item>
+        <item>Master</item>
+    </string-array>
+    <string name="entry_value_rank_apprentice">apprentice</string>
+    <string name="entry_value_rank_intermediate">intermediate</string>
+    <string name="entry_value_rank_master">master</string>
+    <string-array name="entry_values_rank">
+        <item>@string/entry_value_rank_apprentice</item>
+        <item>@string/entry_value_rank_intermediate</item>
+        <item>@string/entry_value_rank_master</item>
+    </string-array>
+    <string name="default_rank">@string/entry_value_rank_apprentice</string>
+
+    <!-- Multi-select restriction -->
+    <string name="title_approvals">Approvals</string>
+    <string name="description_approvals">Approvals</string>
+    <string-array name="entries_approvals">
+        <item>Read</item>
+        <item>Write</item>
+        <item>Execute</item>
+    </string-array>
+    <string name="entry_value_approvals_read">read</string>
+    <string name="entry_value_approvals_write">write</string>
+    <string name="entry_value_approvals_execute">execute</string>
+    <string-array name="entry_values_approvals">
+        <item>@string/entry_value_approvals_read</item>
+        <item>@string/entry_value_approvals_write</item>
+        <item>@string/entry_value_approvals_execute</item>
+    </string-array>
+    <string-array name="default_approvals">
+        <!-- Empty -->
+    </string-array>
+
+    <!-- Hidden restriction -->
+    <string name="title_secret_code">Secret code</string>
+    <string name="description_secret_code">This restriction is hidden and will not be shown to the administrator.</string>
+    <string name="default_secret_code">(Hidden restriction must have some default value)</string>
+
+</resources>
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/values/strings.xml b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/values/strings.xml
index b8ef110b..6dce123f 100644
--- a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/values/strings.xml
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/values/strings.xml
@@ -16,11 +16,14 @@ limitations under the License.
 -->
 <resources>
 
-    <string name="title_can_say_hello">Can say hello</string>
-    <string name="description_can_say_hello">Whether the app can say hello to the user</string>
     <string name="explanation_can_say_hello_true">I can say hello to you.</string>
     <string name="explanation_can_say_hello_false">I am restricted from saying hello to you.</string>
     <string name="action_can_say_hello">Say hello</string>
-    <string name="message_hello">Hello!</string>
+    <string name="message">All I can say is \"%s\".</string>
 
-</resources>
-\ No newline at end of file
+    <string name="your_number">Your number: %d</string>
+    <string name="your_rank">Your rank: %s</string>
+    <string name="approvals_you_have">Approvals you have: %s</string>
+    <string name="none">none</string>
+
+</resources>
diff --git a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/xml/app_restrictions.xml b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/xml/app_restrictions.xml
index 409527fc..9e47f458 100644
--- a/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/xml/app_restrictions.xml
+++ b/prebuilts/gradle/AppRestrictionSchema/Application/src/main/res/xml/app_restrictions.xml
@@ -16,11 +16,55 @@ limitations under the License.
 -->
 <restrictions xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <!--
+    Refer to the javadoc of RestrictionsManager for detail of this file.
+    https://developer.android.com/reference/android/content/RestrictionsManager.html
+    -->
+
     <restriction
-        android:defaultValue="false"
+        android:defaultValue="@bool/default_can_say_hello"
         android:description="@string/description_can_say_hello"
         android:key="can_say_hello"
         android:restrictionType="bool"
-        android:title="@string/title_can_say_hello" />
+        android:title="@string/title_can_say_hello"/>
+
+    <restriction
+        android:defaultValue="@string/default_message"
+        android:description="@string/description_message"
+        android:key="message"
+        android:restrictionType="string"
+        android:title="@string/title_message"/>
+
+    <restriction
+        android:defaultValue="@integer/default_number"
+        android:description="@string/description_number"
+        android:key="number"
+        android:restrictionType="integer"
+        android:title="@string/title_number"/>
+
+    <restriction
+        android:defaultValue="@string/default_rank"
+        android:description="@string/description_rank"
+        android:entries="@array/entries_rank"
+        android:entryValues="@array/entry_values_rank"
+        android:key="rank"
+        android:restrictionType="choice"
+        android:title="@string/title_rank"/>
+
+    <restriction
+        android:defaultValue="@array/default_approvals"
+        android:description="@string/description_approvals"
+        android:entries="@array/entries_approvals"
+        android:entryValues="@array/entry_values_approvals"
+        android:key="approvals"
+        android:restrictionType="multi-select"
+        android:title="@string/title_approvals"/>
+
+    <restriction
+        android:defaultValue="@string/default_secret_code"
+        android:description="@string/description_secret_code"
+        android:key="secret_code"
+        android:restrictionType="hidden"
+        android:title="@string/title_secret_code"/>
 
 </restrictions>
diff --git a/prebuilts/gradle/AppRestrictionSchema/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/AppRestrictionSchema/gradle/wrapper/gradle-wrapper.properties
index 0c71e760..fb79885e 100644
--- a/prebuilts/gradle/AppRestrictionSchema/gradle/wrapper/gradle-wrapper.properties
+++ b/prebuilts/gradle/AppRestrictionSchema/gradle/wrapper/gradle-wrapper.properties
@@ -1,4 +1,4 @@
-#Wed Apr 10 15:27:10 PDT 2013
+#Mon Dec 01 11:44:58 JST 2014
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/prebuilts/gradle/AppRestrictions/Application/build.gradle b/prebuilts/gradle/AppRestrictions/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/AppRestrictions/Application/build.gradle
+++ b/prebuilts/gradle/AppRestrictions/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/AppUsageStatistics/.google/packaging.yaml b/prebuilts/gradle/AppUsageStatistics/.google/packaging.yaml
new file mode 100644
index 00000000..7e39ed2b
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/.google/packaging.yaml
@@ -0,0 +1,17 @@
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFT
+technologies: [Android]
+categories:   [System]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-AppUsageStatistics
+level:        INTERMEDIATE
+icon:         screenshots/web-icon.png
+apiRefs:
+    - android:android.app.usage.UsageStats
+    - android:android.app.usage.UsageStatsManager
+license: apache2
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/build.gradle b/prebuilts/gradle/AppUsageStatistics/Application/build.gradle
new file mode 100644
index 00000000..aecc5fd6
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/build.gradle
@@ -0,0 +1,72 @@
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.0.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+
+dependencies {
+
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+
+    compile "com.android.support:recyclerview-v7:+"
+    compile "com.android.support:appcompat-v7:21.+"
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "21.1.1"
+
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 21
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..2726b4a2
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.appusagestatistics"
+    android:versionCode="1"
+    android:versionName="1.0">
+
+    <uses-permission android:name="android.permission.PACKAGE_USAGE_STATS"/>
+
+    <application android:allowBackup="true"
+        android:label="@string/app_name"
+        android:icon="@drawable/ic_launcher"
+        android:theme="@style/Theme.AppCompat.Light">
+
+        <activity android:name=".AppUsageStatisticsActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+</manifest>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/AppUsageStatisticsActivity.java b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/AppUsageStatisticsActivity.java
new file mode 100644
index 00000000..4def465f
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/AppUsageStatisticsActivity.java
@@ -0,0 +1,37 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.appusagestatistics;
+
+import android.os.Bundle;
+import android.support.v7.app.ActionBarActivity;
+
+/**
+ * Launcher Activity for the App Usage Statistics sample app.
+ */
+public class AppUsageStatisticsActivity extends ActionBarActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_app_usage_statistics);
+        if (savedInstanceState == null) {
+            getSupportFragmentManager().beginTransaction()
+                    .add(R.id.container, AppUsageStatisticsFragment.newInstance())
+                    .commit();
+        }
+    }
+}
+\ No newline at end of file
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/AppUsageStatisticsFragment.java b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/AppUsageStatisticsFragment.java
new file mode 100644
index 00000000..50a72e77
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/AppUsageStatisticsFragment.java
@@ -0,0 +1,230 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.appusagestatistics;
+
+import android.app.usage.UsageStats;
+import android.app.usage.UsageStatsManager;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.graphics.drawable.Drawable;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.support.v4.app.Fragment;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.Spinner;
+import android.widget.SpinnerAdapter;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.List;
+
+/**
+ * Fragment that demonstrates how to use App Usage Statistics API.
+ */
+public class AppUsageStatisticsFragment extends Fragment {
+
+    private static final String TAG = AppUsageStatisticsFragment.class.getSimpleName();
+
+    //VisibleForTesting for variables below
+    UsageStatsManager mUsageStatsManager;
+    UsageListAdapter mUsageListAdapter;
+    RecyclerView mRecyclerView;
+    RecyclerView.LayoutManager mLayoutManager;
+    Button mOpenUsageSettingButton;
+    Spinner mSpinner;
+
+    /**
+     * Use this factory method to create a new instance of
+     * this fragment using the provided parameters.
+     *
+     * @return A new instance of fragment {@link AppUsageStatisticsFragment}.
+     */
+    public static AppUsageStatisticsFragment newInstance() {
+        AppUsageStatisticsFragment fragment = new AppUsageStatisticsFragment();
+        return fragment;
+    }
+
+    public AppUsageStatisticsFragment() {
+        // Required empty public constructor
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        mUsageStatsManager = (UsageStatsManager) getActivity()
+                .getSystemService("usagestats"); //Context.USAGE_STATS_SERVICE
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_app_usage_statistics, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View rootView, Bundle savedInstanceState) {
+        super.onViewCreated(rootView, savedInstanceState);
+
+        mLayoutManager = new LinearLayoutManager(getActivity());
+        mUsageListAdapter = new UsageListAdapter();
+        mRecyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerview_app_usage);
+        mRecyclerView.setLayoutManager(mLayoutManager);
+        mRecyclerView.scrollToPosition(0);
+        mRecyclerView.setAdapter(mUsageListAdapter);
+        mOpenUsageSettingButton = (Button) rootView.findViewById(R.id.button_open_usage_setting);
+        mSpinner = (Spinner) rootView.findViewById(R.id.spinner_time_span);
+        SpinnerAdapter spinnerAdapter = ArrayAdapter.createFromResource(getActivity(),
+                R.array.action_list, android.R.layout.simple_spinner_dropdown_item);
+        mSpinner.setAdapter(spinnerAdapter);
+        mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+
+            String[] strings = getResources().getStringArray(R.array.action_list);
+
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                StatsUsageInterval statsUsageInterval = StatsUsageInterval.getValue(strings[position]);
+                if (statsUsageInterval != null ) {
+                    List<UsageStats> usageStatsList =
+                            getUsageStatistics(statsUsageInterval.mInterval);
+                    Collections.sort(usageStatsList, new LastTimeLaunchedComparatorDesc());
+                    updateAppsList(usageStatsList);
+                }
+            }
+
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+            }
+        });
+        getUsageStatistics(UsageStatsManager.INTERVAL_DAILY);
+    }
+
+    /**
+     * Returns the {@link #mRecyclerView} sorted by the timestamp of the last time used
+     * including the time span specified by the intervalType argument.
+     *
+     * @param intervalType The time interval by which the stats are aggregated.
+     *                     Corresponding to the value of {@link UsageStatsManager}.
+     *                     E.g. {@link UsageStatsManager#INTERVAL_DAILY}, {@link
+     *                     UsageStatsManager#INTERVAL_WEEKLY},
+     */
+    public List<UsageStats> getUsageStatistics(int intervalType) {
+        // Get the app statistics since one year ago from the current time.
+        Calendar cal = Calendar.getInstance();
+        cal.add(Calendar.YEAR, -1);
+
+        List<UsageStats> queryUsageStats = mUsageStatsManager
+                .queryUsageStats(intervalType, cal.getTimeInMillis(),
+                        System.currentTimeMillis());
+
+        if (queryUsageStats.size() == 0) {
+            Log.i(TAG, "The user may not allow the access to apps usage. ");
+            Toast.makeText(getActivity(),
+                    getString(R.string.explanation_access_to_appusage_is_not_enabled),
+                    Toast.LENGTH_LONG).show();
+            mOpenUsageSettingButton.setVisibility(View.VISIBLE);
+            mOpenUsageSettingButton.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    startActivity(new Intent(Settings.ACTION_USAGE_ACCESS_SETTINGS));
+                }
+            });
+        }
+        return queryUsageStats;
+    }
+
+    /**
+     * Updates the {@link #mRecyclerView} with the list of {@link UsageStats} passed as an argument.
+     *
+     * @param usageStatsList A list of {@link UsageStats} from which update the
+     *                       {@link #mRecyclerView}.
+     */
+    void updateAppsList(List<UsageStats> usageStatsList) {
+        List<CustomUsageStats> customUsageStatsList = new ArrayList<>();
+        for (int i = 0; i < usageStatsList.size(); i++) {
+            CustomUsageStats customUsageStats = new CustomUsageStats();
+            customUsageStats.usageStats = usageStatsList.get(i);
+            try {
+                Drawable appIcon = getActivity().getPackageManager()
+                        .getApplicationIcon(customUsageStats.usageStats.getPackageName());
+                customUsageStats.appIcon = appIcon;
+            } catch (PackageManager.NameNotFoundException e) {
+                Log.w(TAG, String.format("App Icon is not found for %s",
+                        customUsageStats.usageStats.getPackageName()));
+                customUsageStats.appIcon = getActivity()
+                        .getDrawable(R.drawable.ic_default_app_launcher);
+            }
+            customUsageStatsList.add(customUsageStats);
+        }
+        mUsageListAdapter.setCustomUsageStatsList(customUsageStatsList);
+        mUsageListAdapter.notifyDataSetChanged();
+        mRecyclerView.scrollToPosition(0);
+    }
+
+    /**
+     * The {@link Comparator} to sort a collection of {@link UsageStats} sorted by the timestamp
+     * last time the app was used in the descendant order.
+     */
+    private static class LastTimeLaunchedComparatorDesc implements Comparator<UsageStats> {
+
+        @Override
+        public int compare(UsageStats left, UsageStats right) {
+            return (int) (right.getLastTimeUsed() - left.getLastTimeUsed());
+        }
+    }
+
+    /**
+     * Enum represents the intervals for {@link android.app.usage.UsageStatsManager} so that
+     * values for intervals can be found by a String representation.
+     *
+     */
+    //VisibleForTesting
+    static enum StatsUsageInterval {
+        DAILY("Daily", UsageStatsManager.INTERVAL_DAILY),
+        WEEKLY("Weekly", UsageStatsManager.INTERVAL_WEEKLY),
+        MONTHLY("Monthly", UsageStatsManager.INTERVAL_MONTHLY),
+        YEARLY("Yearly", UsageStatsManager.INTERVAL_YEARLY);
+
+        private int mInterval;
+        private String mStringRepresentation;
+
+        StatsUsageInterval(String stringRepresentation, int interval) {
+            mStringRepresentation = stringRepresentation;
+            mInterval = interval;
+        }
+
+        static StatsUsageInterval getValue(String stringRepresentation) {
+            for (StatsUsageInterval statsUsageInterval : values()) {
+                if (statsUsageInterval.mStringRepresentation.equals(stringRepresentation)) {
+                    return statsUsageInterval;
+                }
+            }
+            return null;
+        }
+    }
+}
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/CustomUsageStats.java b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/CustomUsageStats.java
new file mode 100644
index 00000000..b5b15c4e
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/CustomUsageStats.java
@@ -0,0 +1,28 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.appusagestatistics;
+
+import android.app.usage.UsageStats;
+import android.graphics.drawable.Drawable;
+
+/**
+ * Entity class represents usage stats and app icon.
+ */
+public class CustomUsageStats {
+    public UsageStats usageStats;
+    public Drawable appIcon;
+}
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/UsageListAdapter.java b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/UsageListAdapter.java
new file mode 100644
index 00000000..ab1d0376
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/java/com/example/android/appusagestatistics/UsageListAdapter.java
@@ -0,0 +1,95 @@
+/*
+* Copyright (C) 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.appusagestatistics;
+
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import java.text.DateFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
+/**
+ * Provide views to RecyclerView with the directory entries.
+ */
+public class UsageListAdapter extends RecyclerView.Adapter<UsageListAdapter.ViewHolder> {
+
+    private List<CustomUsageStats> mCustomUsageStatsList = new ArrayList<>();
+    private DateFormat mDateFormat = new SimpleDateFormat();
+
+    /**
+     * Provide a reference to the type of views that you are using (custom ViewHolder)
+     */
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        private final TextView mPackageName;
+        private final TextView mLastTimeUsed;
+        private final ImageView mAppIcon;
+
+        public ViewHolder(View v) {
+            super(v);
+            mPackageName = (TextView) v.findViewById(R.id.textview_package_name);
+            mLastTimeUsed = (TextView) v.findViewById(R.id.textview_last_time_used);
+            mAppIcon = (ImageView) v.findViewById(R.id.app_icon);
+        }
+
+        public TextView getLastTimeUsed() {
+            return mLastTimeUsed;
+        }
+
+        public TextView getPackageName() {
+            return mPackageName;
+        }
+
+        public ImageView getAppIcon() {
+            return mAppIcon;
+        }
+    }
+
+    public UsageListAdapter() {
+    }
+
+    @Override
+    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
+        View v = LayoutInflater.from(viewGroup.getContext())
+                .inflate(R.layout.usage_row, viewGroup, false);
+        return new ViewHolder(v);
+    }
+
+    @Override
+    public void onBindViewHolder(ViewHolder viewHolder, final int position) {
+        viewHolder.getPackageName().setText(
+                mCustomUsageStatsList.get(position).usageStats.getPackageName());
+        long lastTimeUsed = mCustomUsageStatsList.get(position).usageStats.getLastTimeUsed();
+        viewHolder.getLastTimeUsed().setText(mDateFormat.format(new Date(lastTimeUsed)));
+        viewHolder.getAppIcon().setImageDrawable(mCustomUsageStatsList.get(position).appIcon);
+    }
+
+    @Override
+    public int getItemCount() {
+        return mCustomUsageStatsList.size();
+    }
+
+    public void setCustomUsageStatsList(List<CustomUsageStats> customUsageStats) {
+        mCustomUsageStatsList = customUsageStats;
+    }
+}
+\ No newline at end of file
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/ic_default_app_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/ic_default_app_launcher.png
new file mode 100644
index 00000000..96a442e5
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/ic_default_app_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/ic_launcher.png
new file mode 100755
index 00000000..3cf5e8b4
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 00000000..13586288
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-hdpi/tile.9.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-mdpi/ic_default_app_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-mdpi/ic_default_app_launcher.png
new file mode 100644
index 00000000..359047df
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-mdpi/ic_default_app_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-mdpi/ic_launcher.png
new file mode 100755
index 00000000..51553c5d
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xhdpi/ic_default_app_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xhdpi/ic_default_app_launcher.png
new file mode 100644
index 00000000..71c6d760
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xhdpi/ic_default_app_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xhdpi/ic_launcher.png
new file mode 100755
index 00000000..52480002
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xxhdpi/ic_default_app_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xxhdpi/ic_default_app_launcher.png
new file mode 100644
index 00000000..4df18946
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xxhdpi/ic_default_app_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
new file mode 100755
index 00000000..7f162009
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/activity_app_usage_statistics.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/activity_app_usage_statistics.xml
new file mode 100644
index 00000000..2627c8b7
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/activity_app_usage_statistics.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+             xmlns:tools="http://schemas.android.com/tools"
+             android:id="@+id/container"
+             android:layout_width="match_parent"
+             android:layout_height="match_parent"
+             tools:context="com.example.android.appusagestatistics.AppUsageStatisticsActivity"
+             tools:ignore="MergeRootFrame" />
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/activity_main.xml
new file mode 100755
index 00000000..be1aa49d
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,36 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <LinearLayout style="@style/Widget.SampleMessageTile"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:orientation="vertical">
+
+        <TextView style="@style/Widget.SampleMessage"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="@dimen/horizontal_page_margin"
+            android:layout_marginRight="@dimen/horizontal_page_margin"
+            android:layout_marginTop="@dimen/vertical_page_margin"
+            android:layout_marginBottom="@dimen/vertical_page_margin"
+            android:text="@string/intro_message" />
+    </LinearLayout>
+</LinearLayout>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/fragment_app_usage_statistics.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/fragment_app_usage_statistics.xml
new file mode 100644
index 00000000..1d567b76
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/fragment_app_usage_statistics.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:gravity="center_vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:orientation="vertical"
+              android:padding="@dimen/margin_medium">
+
+    <Button android:id="@+id/button_open_usage_setting"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="@string/open_app_usage_setting"
+            android:visibility="gone"
+            />
+
+    <LinearLayout android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:orientation="horizontal"
+            >
+        <TextView android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:text="@string/time_span"
+                />
+
+        <Spinner android:id="@+id/spinner_time_span"
+                 android:layout_width="wrap_content"
+                 android:layout_height="wrap_content"/>
+    </LinearLayout>
+
+    <android.support.v7.widget.RecyclerView
+            android:id="@+id/recyclerview_app_usage"
+            android:layout_marginLeft="@dimen/margin_small"
+            android:layout_marginRight="@dimen/margin_small"
+            android:scrollbars="vertical"
+            android:drawSelectorOnTop="true"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"/>
+
+</LinearLayout>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/usage_row.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/usage_row.xml
new file mode 100644
index 00000000..c16f039e
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/layout/usage_row.xml
@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/usage_row_height"
+        >
+
+    <LinearLayout android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:orientation="horizontal"
+                  android:layout_centerVertical="true"
+                  android:gravity="center_vertical"
+            >
+        <ImageView android:id="@+id/app_icon"
+                   android:layout_width="wrap_content"
+                   android:layout_height="wrap_content"
+                />
+        <LinearLayout android:layout_width="wrap_content"
+                      android:layout_height="wrap_content"
+                      android:layout_marginLeft="@dimen/margin_medium"
+                      android:orientation="vertical"
+                >
+
+            <TextView
+                    android:id="@+id/textview_package_name"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    style="@style/PackageNameFont"
+                    />
+
+            <LinearLayout android:layout_width="wrap_content"
+                          android:layout_height="wrap_content"
+                          android:orientation="horizontal"
+                    >
+
+                <TextView
+                        android:id="@+id/textview_last_time_used_label"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/last_time_used"
+                        />
+
+                <TextView
+                        android:id="@+id/textview_last_time_used"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        />
+            </LinearLayout>
+        </LinearLayout>
+    </LinearLayout>
+
+    <View android:id="@+id/divider"
+          android:layout_width="match_parent"
+          android:layout_height="1dp"
+          android:background="#bbbbbb"/>
+
+</RelativeLayout>
+\ No newline at end of file
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 00000000..22074a2b
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 00000000..03d19741
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 00000000..8c1ea66f
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 00000000..34c9cd13
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 00000000..0b2948f7
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 00000000..9a92da8c
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="app_name">AppUsageStatistics</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+            This sample explains how to use App usage statistics API, which was introduced
+            in Android 5.0.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/dimens.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/dimens.xml
new file mode 100644
index 00000000..d1741c33
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <dimen name="usage_row_height">72dp</dimen>
+</resources>
+\ No newline at end of file
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/navigation_items.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/navigation_items.xml
new file mode 100644
index 00000000..b36a4a58
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/navigation_items.xml
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string-array name="action_list">
+        <item>Daily</item>
+        <item>Weekly</item>
+        <item>Monthly</item>
+        <item>Yearly</item>
+    </string-array>
+</resources>
+\ No newline at end of file
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/strings.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/strings.xml
new file mode 100644
index 00000000..2caaf900
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/strings.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="open_app_usage_setting">Open Apps with usage access settings</string>
+    <string name="last_time_used">"Last time used: "</string>
+    <string name="time_span">"Time span: "</string>
+    <string name="explanation_access_to_appusage_is_not_enabled">Failed to retrieve app usage
+        statistics. You may need to enable access "
+        + "for this app through Settings > Security > Apps with usage access
+    </string>
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/styles.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/styles.xml
new file mode 100644
index 00000000..d4002764
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/styles.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <style name="PackageNameFont" parent="@android:style/TextAppearance.Small">
+        <item name="android:textColor">#000000</item>
+    </style>
+</resources>
+\ No newline at end of file
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 00000000..39e710b5
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 00000000..6e7d593d
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/tests/src/com/example/android/appusagestatistics/AppUsageStatisticsActivityTests.java b/prebuilts/gradle/AppUsageStatistics/Application/tests/src/com/example/android/appusagestatistics/AppUsageStatisticsActivityTests.java
new file mode 100644
index 00000000..f2e3ea91
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/tests/src/com/example/android/appusagestatistics/AppUsageStatisticsActivityTests.java
@@ -0,0 +1,70 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+* Copyright (C) 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.example.android.appusagestatistics;
+
+import android.test.ActivityInstrumentationTestCase2;
+
+/**
+ * Tests for {@link AppUsageStatisticsActivity}.
+ */
+public class AppUsageStatisticsActivityTests
+        extends ActivityInstrumentationTestCase2<AppUsageStatisticsActivity> {
+
+    private AppUsageStatisticsActivity mTestActivity;
+    private AppUsageStatisticsFragment mTestFragment;
+
+    public AppUsageStatisticsActivityTests() {
+        super(AppUsageStatisticsActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        // Starts the activity under test using the default Intent with:
+        // action = {@link Intent#ACTION_MAIN}
+        // flags = {@link Intent#FLAG_ACTIVITY_NEW_TASK}
+        // All other fields are null or empty.
+        mTestActivity = getActivity();
+        mTestFragment = (AppUsageStatisticsFragment)
+                mTestActivity.getSupportFragmentManager().getFragments().get(0);
+    }
+
+    /**
+     * Test if the test fixture has been set up correctly.
+     */
+    public void testPreconditions() {
+        //Try to add a message to add context to your assertions. These messages will be shown if
+        //a tests fails and make it easy to understand why a test failed
+        assertNotNull("mTestActivity is null", mTestActivity);
+        assertNotNull("mTestFragment is null", mTestFragment);
+    }
+}
diff --git a/prebuilts/gradle/AppUsageStatistics/Application/tests/src/com/example/android/appusagestatistics/AppUsageStatisticsFragmentTests.java b/prebuilts/gradle/AppUsageStatistics/Application/tests/src/com/example/android/appusagestatistics/AppUsageStatisticsFragmentTests.java
new file mode 100644
index 00000000..d8adb1ce
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/Application/tests/src/com/example/android/appusagestatistics/AppUsageStatisticsFragmentTests.java
@@ -0,0 +1,97 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.appusagestatistics;
+
+import com.example.android.appusagestatistics.AppUsageStatisticsFragment.StatsUsageInterval;
+
+import android.app.usage.UsageStats;
+import android.app.usage.UsageStatsManager;
+import android.test.ActivityInstrumentationTestCase2;
+
+import java.util.List;
+
+/**
+ * Tests for {@link com.example.android.appusagestatistics.AppUsageStatisticsFragment}.
+ */
+public class AppUsageStatisticsFragmentTests
+        extends ActivityInstrumentationTestCase2<AppUsageStatisticsActivity> {
+
+    private AppUsageStatisticsActivity mTestActivity;
+    private AppUsageStatisticsFragment mTestFragment;
+
+    public AppUsageStatisticsFragmentTests() {
+        super(AppUsageStatisticsActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        // Starts the activity under test using the default Intent with:
+        // action = {@link Intent#ACTION_MAIN}
+        // flags = {@link Intent#FLAG_ACTIVITY_NEW_TASK}
+        // All other fields are null or empty.
+        mTestActivity = getActivity();
+        mTestFragment = (AppUsageStatisticsFragment)
+                mTestActivity.getSupportFragmentManager().getFragments().get(0);
+    }
+
+    /**
+     * Test if the test fixture has been set up correctly.
+     */
+    public void testPreconditions() {
+        assertNotNull(mTestFragment.mUsageStatsManager);
+        assertNotNull(mTestFragment.mUsageListAdapter);
+        assertNotNull(mTestFragment.mRecyclerView);
+        assertNotNull(mTestFragment.mLayoutManager);
+        assertNotNull(mTestFragment.mOpenUsageSettingButton);
+        assertNotNull(mTestFragment.mSpinner);
+    }
+
+    public void testStatsUsageInterval_getValue() {
+        assertTrue(StatsUsageInterval.DAILY == StatsUsageInterval.getValue("Daily"));
+        assertTrue(StatsUsageInterval.WEEKLY == StatsUsageInterval.getValue("Weekly"));
+        assertTrue(StatsUsageInterval.MONTHLY == StatsUsageInterval.getValue("Monthly"));
+        assertTrue(StatsUsageInterval.YEARLY == StatsUsageInterval.getValue("Yearly"));
+        assertNull(StatsUsageInterval.getValue("NonExistent"));
+    }
+
+    public void testGetUsageStatistics() {
+        List<UsageStats> usageStatsList = mTestFragment
+                .getUsageStatistics(UsageStatsManager.INTERVAL_DAILY);
+
+        // Whether the usageStatsList has any UsageStats depends on if the app is granted
+        // the access to App usage statistics.
+        // Only check non null here.
+        assertNotNull(usageStatsList);
+    }
+
+    public void testUpdateAppsList() {
+        List<UsageStats> usageStatsList = mTestFragment
+                .getUsageStatistics(UsageStatsManager.INTERVAL_DAILY);
+
+        mTestFragment.updateAppsList(usageStatsList);
+        getInstrumentation().waitForIdleSync();
+
+        // The result depends on if the app is granted the access to App usage statistics.
+        if (usageStatsList.size() == 0) {
+            assertTrue(mTestFragment.mUsageListAdapter.getItemCount() == 0);
+        } else {
+            assertTrue(mTestFragment.mUsageListAdapter.getItemCount() > 0);
+        }
+    }
+}
diff --git a/prebuilts/gradle/AppUsageStatistics/CONTRIBUTING.md b/prebuilts/gradle/AppUsageStatistics/CONTRIBUTING.md
new file mode 100644
index 00000000..faa8b5c6
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/AppUsageStatistics/LICENSE b/prebuilts/gradle/AppUsageStatistics/LICENSE
new file mode 100644
index 00000000..1af981f5
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2014 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/prebuilts/gradle/AppUsageStatistics/NOTICE b/prebuilts/gradle/AppUsageStatistics/NOTICE
new file mode 100644
index 00000000..7eede3de
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/NOTICE
@@ -0,0 +1,15 @@
+This sample uses the following software:
+
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/prebuilts/gradle/AppUsageStatistics/README.md b/prebuilts/gradle/AppUsageStatistics/README.md
new file mode 100644
index 00000000..daeb173c
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/README.md
@@ -0,0 +1,96 @@
+Android AppUsageStatistics Sample
+===================================
+
+A basic app showing how to use App usage statistics API to let users collect statistics related
+to usage of the applications.
+
+Introduction
+------------
+
+The [App usage statistics][1] API allows app developers to collect statistics related to usage of
+the applications. This API provides more detailed usage information than the deprecated
+[getRecentTasks()][2] method.
+
+This example illustrates how to use the App usage statistics API by showing the applications sorted
+by the timestamp of the last time each app was used.
+
+To use this API, you must first declare the `android.permission.PACKAGE_USAGE_STATS` permission
+in your manifest. The user must also enable access for this app through
+`Settings > Security > Apps with usage access`.
+
+To collect the statistics of the app usage, you need to first get the instance of
+[UsageStatsManager][3] by the following code:
+
+```java
+mUsageStatsManager = (UsageStatsManager) getActivity()
+       .getSystemService(Context.USAGE_STATS_SERVICE);
+```
+
+Then you can retrieve the statistics of the app usage by the following method:
+
+```java
+Calendar cal = Calendar.getInstance();
+cal.add(Calendar.YEAR, -1);
+List<UsageStats> queryUsageStats = mUsageStatsManager
+        .queryUsageStats(UsageStatsManager.INTERVAL_DAILY, cal.getTimeInMillis(),
+                System.currentTimeMillis());
+```
+
+The first argument of the [queryUsageStats()][4] is used for the time interval by which the
+stats are aggregated. The second and the third arguments are used for specifying the beginning
+and the end of the range of the stats to include in the results.
+
+[1]: https://developer.android.com/reference/android/app/usage/package-summary.html
+[2]: https://developer.android.com/reference/android/app/ActivityManager.html#getRecentTasks(int%2C%20int)
+[3]: https://developer.android.com/reference/android/app/usage/UsageStatsManager.html
+[4]: https://developer.android.com/reference/android/app/usage/UsageStatsManager.html#queryUsageStats(int%2C%20long%2C%20long)
+
+Pre-requisites
+--------------
+
+- Android SDK v21
+- Android Build Tools v21.1.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot-2.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-AppUsageStatistics
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/AppUsageStatistics/build.gradle b/prebuilts/gradle/AppUsageStatistics/build.gradle
new file mode 100644
index 00000000..1dac6def
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/AppUsageStatistics/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/AppUsageStatistics/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..8c0fb64a
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/gradle/wrapper/gradle-wrapper.jar
diff --git a/prebuilts/gradle/AppUsageStatistics/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/AppUsageStatistics/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..8a27ebfa
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Sun Dec 07 22:52:45 JST 2014
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/prebuilts/gradle/AppUsageStatistics/gradlew b/prebuilts/gradle/AppUsageStatistics/gradlew
new file mode 100755
index 00000000..91a7e269
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/AppUsageStatistics/gradlew.bat b/prebuilts/gradle/AppUsageStatistics/gradlew.bat
new file mode 100644
index 00000000..aec99730
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/AppUsageStatistics/screenshots/screenshot-1.png b/prebuilts/gradle/AppUsageStatistics/screenshots/screenshot-1.png
new file mode 100644
index 00000000..ab0da864
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/screenshots/screenshot-1.png
diff --git a/prebuilts/gradle/AppUsageStatistics/screenshots/screenshot-2.png b/prebuilts/gradle/AppUsageStatistics/screenshots/screenshot-2.png
new file mode 100644
index 00000000..7663ebdf
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/screenshots/screenshot-2.png
diff --git a/prebuilts/gradle/AppUsageStatistics/screenshots/web-icon.png b/prebuilts/gradle/AppUsageStatistics/screenshots/web-icon.png
new file mode 100755
index 00000000..68af9d0e
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/screenshots/web-icon.png
diff --git a/prebuilts/gradle/AppUsageStatistics/settings.gradle b/prebuilts/gradle/AppUsageStatistics/settings.gradle
new file mode 100644
index 00000000..9464a359
--- /dev/null
+++ b/prebuilts/gradle/AppUsageStatistics/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/BasicAccessibility/Application/build.gradle b/prebuilts/gradle/BasicAccessibility/Application/build.gradle
index 8380768f..8b72299a 100644
--- a/prebuilts/gradle/BasicAccessibility/Application/build.gradle
+++ b/prebuilts/gradle/BasicAccessibility/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle b/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle
+++ b/prebuilts/gradle/BasicAndroidKeyStore/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicContactables/.google/packaging.yaml b/prebuilts/gradle/BasicContactables/.google/packaging.yaml
index c17e1fcc..d18be0c2 100644
--- a/prebuilts/gradle/BasicContactables/.google/packaging.yaml
+++ b/prebuilts/gradle/BasicContactables/.google/packaging.yaml
@@ -9,4 +9,12 @@ categories:   [Content]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-BasicContactables
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.app.SearchManager
+    - android:android.widget.SearchView
+    - android:android.app.LoaderManager
+    - android:android.content.CursorLoader
+    - android:android.provider.ContactsContract.CommonDataKinds
 license: apache2
diff --git a/prebuilts/gradle/BasicContactables/Application/build.gradle b/prebuilts/gradle/BasicContactables/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/BasicContactables/Application/build.gradle
+++ b/prebuilts/gradle/BasicContactables/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicContactables/README.md b/prebuilts/gradle/BasicContactables/README.md
index 883cd6c3..cd274c94 100644
--- a/prebuilts/gradle/BasicContactables/README.md
+++ b/prebuilts/gradle/BasicContactables/README.md
@@ -1,10 +1,25 @@
 Android BasicContactables Sample
 ===================================
 
-This sample demonstrates how to use the Contactables table to search for contacts.
+This sample shows how to search for contacts, displaying a SearchView in the Action Bar for user input and implementing a query Cursor with CommonDataKinds.Contactables.
 
-Query strings sent to the Contactables table will match both contact names and phone numbers,
-reducing the number of queries your application needs to use when searching the contacts database!
+Introduction
+------------
+
+This sample displays a [SearchView][1] in the Action Bar when the search icon is clicked. It then implements the [LoaderManager.LoaderCallbacks][2] interface to query the contacts table, using a [CursorLoader][3].
+
+For details on how to implement the [SearchView][1], refer to the training guide [Setting up the search interface][4].
+
+For details on how to implement the [LoaderManager.LoaderCallbacks][2] interface, refer to the [Using the LoaderManager Callbacks][5] guide.
+
+For details on how to query the contacts provider, refer to the [Contacts Provider Access][6] guide.
+
+[1]: http://developer.android.com/reference/android/widget/SearchView.html
+[2]: http://developer.android.com/reference/android/app/LoaderManager.LoaderCallbacks.html
+[3]: http://developer.android.com/reference/android/content/CursorLoader.html
+[4]: http://developer.android.com/training/search/setup.html
+[5]: http://developer.android.com/guide/components/loaders.html#callback
+[6]: http://developer.android.com/guide/topics/providers/contacts-provider.html#Access
 
 Pre-requisites
 --------------
@@ -13,6 +28,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/1-main.png" height="400" alt="Screenshot"/> <img src="screenshots/2-search.png" height="400" alt="Screenshot"/> <img src="screenshots/3-results.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/BasicContactables/screenshots/1-main.png b/prebuilts/gradle/BasicContactables/screenshots/1-main.png
new file mode 100644
index 00000000..2c11a7d9
--- /dev/null
+++ b/prebuilts/gradle/BasicContactables/screenshots/1-main.png
diff --git a/prebuilts/gradle/BasicContactables/screenshots/2-search.png b/prebuilts/gradle/BasicContactables/screenshots/2-search.png
new file mode 100644
index 00000000..b8b012f4
--- /dev/null
+++ b/prebuilts/gradle/BasicContactables/screenshots/2-search.png
diff --git a/prebuilts/gradle/BasicContactables/screenshots/3-results.png b/prebuilts/gradle/BasicContactables/screenshots/3-results.png
new file mode 100644
index 00000000..48856ce6
--- /dev/null
+++ b/prebuilts/gradle/BasicContactables/screenshots/3-results.png
diff --git a/prebuilts/gradle/BasicContactables/screenshots/icon-web.png b/prebuilts/gradle/BasicContactables/screenshots/icon-web.png
new file mode 100644
index 00000000..8ad9e149
--- /dev/null
+++ b/prebuilts/gradle/BasicContactables/screenshots/icon-web.png
diff --git a/prebuilts/gradle/BasicGestureDetect/Application/build.gradle b/prebuilts/gradle/BasicGestureDetect/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/BasicGestureDetect/Application/build.gradle
+++ b/prebuilts/gradle/BasicGestureDetect/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle b/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle
+++ b/prebuilts/gradle/BasicImmersiveMode/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicManagedProfile/Application/build.gradle b/prebuilts/gradle/BasicManagedProfile/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/BasicManagedProfile/Application/build.gradle
+++ b/prebuilts/gradle/BasicManagedProfile/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle b/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle
index 5e57579a..d727e2a8 100644
--- a/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle
+++ b/prebuilts/gradle/BasicMediaDecoder/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicMediaRouter/Application/build.gradle b/prebuilts/gradle/BasicMediaRouter/Application/build.gradle
index 5e57579a..d727e2a8 100644
--- a/prebuilts/gradle/BasicMediaRouter/Application/build.gradle
+++ b/prebuilts/gradle/BasicMediaRouter/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicMultitouch/Application/build.gradle b/prebuilts/gradle/BasicMultitouch/Application/build.gradle
index 90737fcc..3e25a83b 100644
--- a/prebuilts/gradle/BasicMultitouch/Application/build.gradle
+++ b/prebuilts/gradle/BasicMultitouch/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicNetworking/.google/packaging.yaml b/prebuilts/gradle/BasicNetworking/.google/packaging.yaml
index 57f27960..6f178e2d 100644
--- a/prebuilts/gradle/BasicNetworking/.google/packaging.yaml
+++ b/prebuilts/gradle/BasicNetworking/.google/packaging.yaml
@@ -9,4 +9,9 @@ categories:   [Connectivity]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-BasicNetworking
+level:        INTERMEDIATE
+icon:         screenshots/big_icon.png
+apiRefs:
+    - android:android.net.ConnectivityManager
+    - android:android.net.NetworkInfo
 license: apache2
diff --git a/prebuilts/gradle/BasicNetworking/Application/build.gradle b/prebuilts/gradle/BasicNetworking/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/BasicNetworking/Application/build.gradle
+++ b/prebuilts/gradle/BasicNetworking/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-hdpi/ic_launcher.png
index 22ce6061..fad6812b 100755
--- a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-hdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-mdpi/ic_launcher.png
index f21e17b6..04cf1152 100755
--- a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-mdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xhdpi/ic_launcher.png
index 64b80590..53736dfe 100755
--- a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xhdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
index 6b4434a8..6afbfca3 100755
--- a/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicNetworking/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicNetworking/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/BasicNetworking/Application/src/main/res/values/base-strings.xml
index 9a86c89d..ddd695f9 100644
--- a/prebuilts/gradle/BasicNetworking/Application/src/main/res/values/base-strings.xml
+++ b/prebuilts/gradle/BasicNetworking/Application/src/main/res/values/base-strings.xml
@@ -20,10 +20,10 @@
         <![CDATA[
         
             
-                This sample demonstrates how to use the ConnectivityManager to determine if you have
-                a network connection, and if so, what type of connection it is.
-                \n\nA "NetworkInfo" object is retrieved from the ConnectivityManager, which contains information
-                on the active connection, and then the connection type is printed to an on-screen console.
+            This sample demonstrates how to use the ConnectivityManager to determine if you have
+            a network connection, and if so, what type of connection it is.
+            \n\nA "NetworkInfo" object is retrieved from the ConnectivityManager, which contains information
+            on the active connection, and then the connection type is printed to an on-screen console.
             
         
         ]]>
diff --git a/prebuilts/gradle/BasicNetworking/README.md b/prebuilts/gradle/BasicNetworking/README.md
index 9a5eeadc..25a04cef 100644
--- a/prebuilts/gradle/BasicNetworking/README.md
+++ b/prebuilts/gradle/BasicNetworking/README.md
@@ -1,12 +1,23 @@
 Android BasicNetworking Sample
 ===================================
 
-This sample demonstrates how to use the ConnectivityManager to determine if you have
+This sample demonstrates how to check network connectivity with Android APIs.
+
+Introduction
+------------
+
+It utilizes the [`ConnectivityManager`][1] to determine if you have
 a network connection, and if so, what type of connection it is.
 
-A "NetworkInfo" object is retrieved from the ConnectivityManager, which contains information
+A [`NetworkInfo`][2] object is retrieved from the ConnectivityManager, which contains information
 on the active connection, and then the connection type is printed to an on-screen console.
 
+Multiple types of connectivity can be displayed and could be used to take different measures
+in actual production code.
+
+[1]: https://developer.android.com/reference/android/net/ConnectivityManager.html
+[2]: https://developer.android.com/reference/android/net/NetworkInfo.html
+
 Pre-requisites
 --------------
 
@@ -14,6 +25,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/start.png" height="400" alt="Screenshot"/> <img src="screenshots/tested.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/BasicNetworking/screenshots/big_icon.png b/prebuilts/gradle/BasicNetworking/screenshots/big_icon.png
new file mode 100644
index 00000000..a9c88499
--- /dev/null
+++ b/prebuilts/gradle/BasicNetworking/screenshots/big_icon.png
diff --git a/prebuilts/gradle/BasicNetworking/screenshots/start.png b/prebuilts/gradle/BasicNetworking/screenshots/start.png
new file mode 100644
index 00000000..e244f189
--- /dev/null
+++ b/prebuilts/gradle/BasicNetworking/screenshots/start.png
diff --git a/prebuilts/gradle/BasicNetworking/screenshots/tested.png b/prebuilts/gradle/BasicNetworking/screenshots/tested.png
new file mode 100644
index 00000000..96359c6b
--- /dev/null
+++ b/prebuilts/gradle/BasicNetworking/screenshots/tested.png
diff --git a/prebuilts/gradle/BasicNotifications/Application/build.gradle b/prebuilts/gradle/BasicNotifications/Application/build.gradle
index 90737fcc..3e25a83b 100644
--- a/prebuilts/gradle/BasicNotifications/Application/build.gradle
+++ b/prebuilts/gradle/BasicNotifications/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicRenderScript/Application/build.gradle b/prebuilts/gradle/BasicRenderScript/Application/build.gradle
index 641b05e5..23a18632 100644
--- a/prebuilts/gradle/BasicRenderScript/Application/build.gradle
+++ b/prebuilts/gradle/BasicRenderScript/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
     compile files('renderscript-v8.jar')
 }
diff --git a/prebuilts/gradle/BasicSyncAdapter/.google/packaging.yaml b/prebuilts/gradle/BasicSyncAdapter/.google/packaging.yaml
index cead24a9..9d07bf6c 100644
--- a/prebuilts/gradle/BasicSyncAdapter/.google/packaging.yaml
+++ b/prebuilts/gradle/BasicSyncAdapter/.google/packaging.yaml
@@ -5,8 +5,17 @@
 ---
 status:       PUBLISHED
 technologies: [Android]
-categories:   [Connectivity]
+categories:   [Background, Connectivity]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-BasicSyncAdapter
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.app.Service
+    - android:android.content.AbstractThreadedSyncAdapter
+    - android:android.content.ContentProvider
+    - android:android.content.ContentResolver
+    - android:android.content.SyncResult
+    - android:android.database.sqlite.SQLiteDatabase
 license: apache2
diff --git a/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle b/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle
index c5134fb4..292c2d14 100644
--- a/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle
+++ b/prebuilts/gradle/BasicSyncAdapter/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-hdpi/ic_launcher.png
index a0f7005a..7920c98e 100644
--- a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-hdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-mdpi/ic_launcher.png
index a085462c..1de60fe4 100644
--- a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-mdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xhdpi/ic_launcher.png
index 4f78eb84..fc4bfebd 100644
--- a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xhdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
index b198ee3e..646ce941 100644
--- a/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
+++ b/prebuilts/gradle/BasicSyncAdapter/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/BasicSyncAdapter/README.md b/prebuilts/gradle/BasicSyncAdapter/README.md
index fc21471e..c4900092 100644
--- a/prebuilts/gradle/BasicSyncAdapter/README.md
+++ b/prebuilts/gradle/BasicSyncAdapter/README.md
@@ -1,13 +1,28 @@
 Android BasicSyncAdapter Sample
 ===================================
 
-This sample demonstrates using SyncAdapter to fetch background data for an app that
-doesn't require a user-visible account type or 2-way synchronization.
+This sample demonstrates using SyncAdapter to fetch background
+data for an app. It covers the creation of the required Service
+that the OS uses to initiate the background data sync as well as
+scheduling syncs with background data.
 
+Introduction
+------------
 
-This sample periodically downloads the feed from the Android Developer Blog and
-caches the data in a content provider. At runtime, the cached feed data is displayed
-inside a ListView.
+This sample demonstrates using SyncAdapter to fetch background data
+for an app. SyncAdapters can be used to execute your data transfer
+code at configurable intervals, while efficiently using battery and
+other system resources.
+
+This sample implements all the required elements of a sync adapter.
+- Creates a sync adapter class.
+- Creates a bound Service which the OS uses to initiate a sync.
+- Defines the sync adapter properties in an XML resource file.
+- Declares the bound Service in the app manifest.
+
+For more on SyncAdapters refer to [Transferring Data Using Sync Adapters][1]
+
+[1]: http://developer.android.com/training/sync-adapters/index.html
 
 Pre-requisites
 --------------
@@ -16,6 +31,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/main.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/BasicSyncAdapter/screenshots/icon-web.png b/prebuilts/gradle/BasicSyncAdapter/screenshots/icon-web.png
new file mode 100644
index 00000000..7904a13a
--- /dev/null
+++ b/prebuilts/gradle/BasicSyncAdapter/screenshots/icon-web.png
diff --git a/prebuilts/gradle/BasicSyncAdapter/screenshots/main.png b/prebuilts/gradle/BasicSyncAdapter/screenshots/main.png
new file mode 100644
index 00000000..c0a9d483
--- /dev/null
+++ b/prebuilts/gradle/BasicSyncAdapter/screenshots/main.png
diff --git a/prebuilts/gradle/BasicTransition/Application/build.gradle b/prebuilts/gradle/BasicTransition/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/BasicTransition/Application/build.gradle
+++ b/prebuilts/gradle/BasicTransition/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BatchStepSensor/Application/build.gradle b/prebuilts/gradle/BatchStepSensor/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/BatchStepSensor/Application/build.gradle
+++ b/prebuilts/gradle/BatchStepSensor/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BluetoothChat/Application/build.gradle b/prebuilts/gradle/BluetoothChat/Application/build.gradle
index 8380768f..8b72299a 100644
--- a/prebuilts/gradle/BluetoothChat/Application/build.gradle
+++ b/prebuilts/gradle/BluetoothChat/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle b/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle
+++ b/prebuilts/gradle/BluetoothLeGatt/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/BorderlessButtons/Application/build.gradle b/prebuilts/gradle/BorderlessButtons/Application/build.gradle
index 0427861a..37884d80 100644
--- a/prebuilts/gradle/BorderlessButtons/Application/build.gradle
+++ b/prebuilts/gradle/BorderlessButtons/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/Camera2Basic/Application/build.gradle b/prebuilts/gradle/Camera2Basic/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/Camera2Basic/Application/build.gradle
+++ b/prebuilts/gradle/Camera2Basic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/Camera2Video/Application/build.gradle b/prebuilts/gradle/Camera2Video/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/Camera2Video/Application/build.gradle
+++ b/prebuilts/gradle/Camera2Video/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/CardEmulation/Application/build.gradle b/prebuilts/gradle/CardEmulation/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/CardEmulation/Application/build.gradle
+++ b/prebuilts/gradle/CardEmulation/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/CardReader/Application/build.gradle b/prebuilts/gradle/CardReader/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/CardReader/Application/build.gradle
+++ b/prebuilts/gradle/CardReader/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/CardView/Application/build.gradle b/prebuilts/gradle/CardView/Application/build.gradle
index 53483bad..13964de1 100644
--- a/prebuilts/gradle/CardView/Application/build.gradle
+++ b/prebuilts/gradle/CardView/Application/build.gradle
@@ -18,7 +18,7 @@ repositories {
 dependencies {
 
 
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:cardview-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
diff --git a/prebuilts/gradle/ClippingBasic/Application/build.gradle b/prebuilts/gradle/ClippingBasic/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/ClippingBasic/Application/build.gradle
+++ b/prebuilts/gradle/ClippingBasic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/CustomChoiceList/Application/build.gradle b/prebuilts/gradle/CustomChoiceList/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/CustomChoiceList/Application/build.gradle
+++ b/prebuilts/gradle/CustomChoiceList/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/CustomNotifications/Application/build.gradle b/prebuilts/gradle/CustomNotifications/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/CustomNotifications/Application/build.gradle
+++ b/prebuilts/gradle/CustomNotifications/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/CustomTransition/Application/build.gradle b/prebuilts/gradle/CustomTransition/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/CustomTransition/Application/build.gradle
+++ b/prebuilts/gradle/CustomTransition/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/DirectorySelection/.google/packaging.yaml b/prebuilts/gradle/DirectorySelection/.google/packaging.yaml
new file mode 100644
index 00000000..a750a88d
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/.google/packaging.yaml
@@ -0,0 +1,17 @@
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       DRAFTED
+technologies: [Android]
+categories:   [Content]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-DirectorySelection
+level:        INTERMEDIATE
+icon:         screenshots/web-icon.png
+apiRefs:
+    - android:android.content.ContentResolver
+    - android:android.provider.DocumentsContract
+license: apache2
diff --git a/prebuilts/gradle/DirectorySelection/Application/build.gradle b/prebuilts/gradle/DirectorySelection/Application/build.gradle
new file mode 100644
index 00000000..6bd132fb
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/build.gradle
@@ -0,0 +1,71 @@
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.0.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+
+dependencies {
+
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+
+    compile "com.android.support:recyclerview-v7:+"
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "21.1.1"
+
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 21
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..46cddcfa
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.directoryselection"
+    android:versionCode="1"
+    android:versionName="1.0">
+
+    <application android:allowBackup="true"
+        android:label="@string/app_name"
+        android:icon="@drawable/ic_launcher"
+        android:theme="@style/AppTheme">
+
+        <activity android:name=".DirectorySelectionActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+
+</manifest>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectoryEntry.java b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectoryEntry.java
new file mode 100644
index 00000000..04c1c896
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectoryEntry.java
@@ -0,0 +1,25 @@
+/*
+* Copyright (C) 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.directoryselection;
+
+/**
+ * Entity class that represents an directory entry.
+ */
+public class DirectoryEntry {
+    public String fileName;
+    public String mimeType;
+}
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectoryEntryAdapter.java b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectoryEntryAdapter.java
new file mode 100644
index 00000000..e92c71ec
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectoryEntryAdapter.java
@@ -0,0 +1,100 @@
+/*
+* Copyright (C) 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.directoryselection;
+
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import java.util.List;
+
+/**
+ * Provide views to RecyclerView with the directory entries.
+ */
+public class DirectoryEntryAdapter extends RecyclerView.Adapter<DirectoryEntryAdapter.ViewHolder> {
+
+    static final String DIRECTORY_MIME_TYPE = "vnd.android.document/directory";
+    private List<DirectoryEntry> mDirectoryEntries;
+
+    /**
+     * Provide a reference to the type of views that you are using (custom ViewHolder)
+     */
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        private final TextView mFileName;
+        private final TextView mMimeType;
+        private final ImageView mImageView;
+
+        public ViewHolder(View v) {
+            super(v);
+            mFileName = (TextView) v.findViewById(R.id.textview_filename);
+            mMimeType = (TextView) v.findViewById(R.id.textview_mimetype);
+            mImageView = (ImageView) v.findViewById(R.id.entry_image);
+        }
+
+        public TextView getFileName() {
+            return mFileName;
+        }
+
+        public TextView getMimeType() {
+            return mMimeType;
+        }
+
+        public ImageView getImageView() {
+            return mImageView;
+        }
+    }
+
+    /**
+     * Initialize the directory entries of the Adapter.
+     *
+     * @param directoryEntries an array of {@link DirectoryEntry}.
+     */
+    public DirectoryEntryAdapter(List<DirectoryEntry> directoryEntries) {
+        mDirectoryEntries = directoryEntries;
+    }
+
+    @Override
+    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
+        View v = LayoutInflater.from(viewGroup.getContext())
+                .inflate(R.layout.directory_item, viewGroup, false);
+        return new ViewHolder(v);
+    }
+
+    @Override
+    public void onBindViewHolder(ViewHolder viewHolder, final int position) {
+        viewHolder.getFileName().setText(mDirectoryEntries.get(position).fileName);
+        viewHolder.getMimeType().setText(mDirectoryEntries.get(position).mimeType);
+
+        if (DIRECTORY_MIME_TYPE.equals(mDirectoryEntries.get(position).mimeType)) {
+            viewHolder.getImageView().setImageResource(R.drawable.ic_folder_grey600_36dp);
+        } else {
+            viewHolder.getImageView().setImageResource(R.drawable.ic_description_grey600_36dp);
+        }
+    }
+
+    @Override
+    public int getItemCount() {
+        return mDirectoryEntries.size();
+    }
+
+    public void setDirectoryEntries(List<DirectoryEntry> directoryEntries) {
+        mDirectoryEntries = directoryEntries;
+    }
+}
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectorySelectionActivity.java b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectorySelectionActivity.java
new file mode 100644
index 00000000..d27ba728
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectorySelectionActivity.java
@@ -0,0 +1,37 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.directoryselection;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+
+/**
+ * Launcher Activity for the Directory Selection sample app.
+ */
+public class DirectorySelectionActivity extends FragmentActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_directory_selection);
+        if (savedInstanceState == null) {
+            getSupportFragmentManager().beginTransaction()
+                    .add(R.id.container, DirectorySelectionFragment.newInstance())
+                    .commit();
+        }
+    }
+}
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectorySelectionFragment.java b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectorySelectionFragment.java
new file mode 100644
index 00000000..4af55dbe
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/java/com/example/android/directoryselection/DirectorySelectionFragment.java
@@ -0,0 +1,231 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.directoryselection;
+
+import android.app.Activity;
+import android.app.AlertDialog;
+import android.content.ContentResolver;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.database.Cursor;
+import android.net.Uri;
+import android.os.Bundle;
+import android.provider.DocumentsContract;
+import android.provider.DocumentsContract.Document;
+import android.support.v4.app.Fragment;
+import android.support.v7.widget.LinearLayoutManager;
+import android.support.v7.widget.RecyclerView;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Fragment that demonstrates how to use Directory Selection API.
+ */
+public class DirectorySelectionFragment extends Fragment {
+
+    private static final String TAG = DirectorySelectionFragment.class.getSimpleName();
+
+    public static final int REQUEST_CODE_OPEN_DIRECTORY = 1;
+
+    Uri mCurrentDirectoryUri;
+    TextView mCurrentDirectoryTextView;
+    Button mCreateDirectoryButton;
+    RecyclerView mRecyclerView;
+    DirectoryEntryAdapter mAdapter;
+    RecyclerView.LayoutManager mLayoutManager;
+
+    /**
+     * Use this factory method to create a new instance of
+     * this fragment using the provided parameters.
+     *
+     * @return A new instance of fragment {@link DirectorySelectionFragment}.
+     */
+    public static DirectorySelectionFragment newInstance() {
+        DirectorySelectionFragment fragment = new DirectorySelectionFragment();
+        return fragment;
+    }
+
+    public DirectorySelectionFragment() {
+        // Required empty public constructor
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_directory_selection, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View rootView, Bundle savedInstanceState) {
+        super.onViewCreated(rootView, savedInstanceState);
+
+        rootView.findViewById(R.id.button_open_directory)
+                .setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
+                        startActivityForResult(intent, REQUEST_CODE_OPEN_DIRECTORY);
+                    }
+                });
+
+        mCurrentDirectoryTextView = (TextView) rootView
+                .findViewById(R.id.textview_current_directory);
+        mCreateDirectoryButton = (Button) rootView.findViewById(R.id.button_create_directory);
+        mCreateDirectoryButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                final EditText editView = new EditText(getActivity());
+                new AlertDialog.Builder(getActivity())
+                        .setTitle(R.string.create_directory)
+                        .setView(editView)
+                        .setPositiveButton(android.R.string.ok,
+                                new DialogInterface.OnClickListener() {
+                                    public void onClick(DialogInterface dialog, int whichButton) {
+                                        createDirectory(mCurrentDirectoryUri,
+                                                editView.getText().toString());
+                                        updateDirectoryEntries(mCurrentDirectoryUri);
+                                    }
+                                })
+                        .setNegativeButton(android.R.string.cancel,
+                                new DialogInterface.OnClickListener() {
+                                    public void onClick(DialogInterface dialog, int whichButton) {
+                                    }
+                                })
+                        .show();
+            }
+        });
+        mRecyclerView = (RecyclerView) rootView.findViewById(R.id.recyclerview_directory_entries);
+        mLayoutManager = new LinearLayoutManager(getActivity());
+        mRecyclerView.setLayoutManager(mLayoutManager);
+        mRecyclerView.scrollToPosition(0);
+        mAdapter = new DirectoryEntryAdapter(new ArrayList<DirectoryEntry>());
+        mRecyclerView.setAdapter(mAdapter);
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode == REQUEST_CODE_OPEN_DIRECTORY && resultCode == Activity.RESULT_OK) {
+            Log.d(TAG, String.format("Open Directory result Uri : %s", data.getData()));
+            updateDirectoryEntries(data.getData());
+            mAdapter.notifyDataSetChanged();
+        }
+    }
+
+
+    /**
+     * Updates the current directory of the uri passed as an argument and its children directories.
+     * And updates the {@link #mRecyclerView} depending on the contents of the children.
+     *
+     * @param uri The uri of the current directory.
+     */
+    //VisibileForTesting
+    void updateDirectoryEntries(Uri uri) {
+        ContentResolver contentResolver = getActivity().getContentResolver();
+        Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
+                DocumentsContract.getTreeDocumentId(uri));
+        Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
+                DocumentsContract.getTreeDocumentId(uri));
+
+        Cursor docCursor = contentResolver.query(docUri, new String[]{
+                Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
+        try {
+            while (docCursor.moveToNext()) {
+                Log.d(TAG, "found doc =" + docCursor.getString(0) + ", mime=" + docCursor
+                        .getString(1));
+                mCurrentDirectoryUri = uri;
+                mCurrentDirectoryTextView.setText(docCursor.getString(0));
+                mCreateDirectoryButton.setEnabled(true);
+            }
+        } finally {
+            closeQuietly(docCursor);
+        }
+
+        Cursor childCursor = contentResolver.query(childrenUri, new String[]{
+                Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
+        try {
+            List<DirectoryEntry> directoryEntries = new ArrayList<>();
+            while (childCursor.moveToNext()) {
+                Log.d(TAG, "found child=" + childCursor.getString(0) + ", mime=" + childCursor
+                        .getString(1));
+                DirectoryEntry entry = new DirectoryEntry();
+                entry.fileName = childCursor.getString(0);
+                entry.mimeType = childCursor.getString(1);
+                directoryEntries.add(entry);
+            }
+            mAdapter.setDirectoryEntries(directoryEntries);
+            mAdapter.notifyDataSetChanged();
+        } finally {
+            closeQuietly(childCursor);
+        }
+    }
+
+    /**
+     * Creates a directory under the directory represented as the uri in the argument.
+     *
+     * @param uri The uri of the directory under which a new directory is created.
+     * @param directoryName The directory name of a new directory.
+     */
+    //VisibileForTesting
+    void createDirectory(Uri uri, String directoryName) {
+        ContentResolver contentResolver = getActivity().getContentResolver();
+        Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
+                DocumentsContract.getTreeDocumentId(uri));
+        Uri directoryUri = DocumentsContract
+                .createDocument(contentResolver, docUri, Document.MIME_TYPE_DIR, directoryName);
+        if (directoryUri != null) {
+            Log.i(TAG, String.format(
+                    "Created directory : %s, Document Uri : %s, Created directory Uri : %s",
+                    directoryName, docUri, directoryUri));
+            Toast.makeText(getActivity(), String.format("Created a directory [%s]",
+                    directoryName), Toast.LENGTH_SHORT).show();
+        } else {
+            Log.w(TAG, String.format("Failed to create a directory : %s, Uri %s", directoryName,
+                    docUri));
+            Toast.makeText(getActivity(), String.format("Failed to created a directory [%s] : ",
+                    directoryName), Toast.LENGTH_SHORT).show();
+        }
+
+    }
+
+    public void closeQuietly(AutoCloseable closeable) {
+        if (closeable != null) {
+            try {
+                closeable.close();
+            } catch (RuntimeException rethrown) {
+                throw rethrown;
+            } catch (Exception ignored) {
+            }
+        }
+    }
+}
+
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_description_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_description_grey600_36dp.png
new file mode 100755
index 00000000..dd7d0734
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_description_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_folder_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_folder_grey600_36dp.png
new file mode 100755
index 00000000..6c022d46
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_folder_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_launcher.png
new file mode 100755
index 00000000..49ee8546
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 00000000..13586288
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-hdpi/tile.9.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_description_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_description_grey600_36dp.png
new file mode 100755
index 00000000..ac18b575
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_description_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_folder_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_folder_grey600_36dp.png
new file mode 100755
index 00000000..e3dccd29
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_folder_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_launcher.png
new file mode 100755
index 00000000..282a00c7
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_description_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_description_grey600_36dp.png
new file mode 100755
index 00000000..50f854ea
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_description_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_folder_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_folder_grey600_36dp.png
new file mode 100755
index 00000000..6fbc4045
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_folder_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_launcher.png
new file mode 100755
index 00000000..7293ad6e
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_description_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_description_grey600_36dp.png
new file mode 100755
index 00000000..33df5d9d
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_description_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_folder_grey600_36dp.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_folder_grey600_36dp.png
new file mode 100755
index 00000000..ed2f08e4
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_folder_grey600_36dp.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
new file mode 100755
index 00000000..7b618d40
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/activity_directory_selection.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/activity_directory_selection.xml
new file mode 100644
index 00000000..db655838
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/activity_directory_selection.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+             xmlns:tools="http://schemas.android.com/tools"
+             android:id="@+id/container"
+             android:layout_width="match_parent"
+             android:layout_height="match_parent"
+             tools:context="com.example.android.directoryselection.DirectorySelectionActivity"
+             tools:ignore="MergeRootFrame" />
+\ No newline at end of file
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/activity_main.xml
new file mode 100755
index 00000000..be1aa49d
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,36 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <LinearLayout style="@style/Widget.SampleMessageTile"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:orientation="vertical">
+
+        <TextView style="@style/Widget.SampleMessage"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="@dimen/horizontal_page_margin"
+            android:layout_marginRight="@dimen/horizontal_page_margin"
+            android:layout_marginTop="@dimen/vertical_page_margin"
+            android:layout_marginBottom="@dimen/vertical_page_margin"
+            android:text="@string/intro_message" />
+    </LinearLayout>
+</LinearLayout>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/directory_item.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/directory_item.xml
new file mode 100644
index 00000000..0763cff6
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/directory_item.xml
@@ -0,0 +1,57 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+                android:layout_width="match_parent"
+                android:layout_height="@dimen/directory_item_height"
+        >
+
+    <LinearLayout android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:orientation="horizontal"
+                  android:layout_centerVertical="true"
+                  android:gravity="center_vertical"
+            >
+        <ImageView android:id="@+id/entry_image"
+                   android:layout_width="wrap_content"
+                   android:layout_height="wrap_content"
+                   android:src="@drawable/ic_folder_grey600_36dp"
+                />
+        <LinearLayout android:layout_width="wrap_content"
+                      android:layout_height="wrap_content"
+                      android:layout_marginLeft="@dimen/margin_medium"
+                      android:orientation="vertical"
+                >
+            <View android:id="@+id/divisor"
+                  android:layout_width="match_parent"
+                  android:layout_height="1dp"
+                  android:background="#aaaaaa"/>
+
+            <TextView
+                    android:id="@+id/textview_filename"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    style="@style/DirectoryEntryNameFont"
+                    />
+            <TextView
+                    android:id="@+id/textview_mimetype"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"/>
+
+        </LinearLayout>
+    </LinearLayout>
+</RelativeLayout>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/fragment_directory_selection.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/fragment_directory_selection.xml
new file mode 100644
index 00000000..d63219c5
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/layout/fragment_directory_selection.xml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:gravity="center_vertical"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:orientation="vertical"
+              android:padding="@dimen/margin_medium">
+
+    <LinearLayout android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:orientation="horizontal"
+            >
+
+        <Button android:id="@+id/button_open_directory"
+                android:text="@string/open_directory"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"/>
+
+        <Button android:id="@+id/button_create_directory"
+                android:text="@string/create_directory"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:enabled="false"
+                />
+    </LinearLayout>
+
+    <LinearLayout android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  android:orientation="horizontal"
+                  android:layout_marginLeft="@dimen/margin_small"
+                  android:layout_marginRight="@dimen/margin_small"
+            >
+
+        <TextView android:id="@+id/label_current_directory"
+                  android:text="@string/selected_directory"
+                  android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"/>
+
+        <TextView android:id="@+id/textview_current_directory"
+                  android:enabled="false"
+                  android:layout_width="wrap_content"
+                  android:layout_height="wrap_content"
+                  style="@style/DirectoryEntryNameFont"
+                />
+
+    </LinearLayout>
+
+    <android.support.v7.widget.RecyclerView
+            android:id="@+id/recyclerview_directory_entries"
+            android:layout_marginLeft="@dimen/margin_small"
+            android:layout_marginRight="@dimen/margin_small"
+            android:scrollbars="vertical"
+            android:drawSelectorOnTop="true"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"/>
+
+</LinearLayout>
+
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/menu/main.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/menu/main.xml
new file mode 100644
index 00000000..e9b5e0b1
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/menu/main.xml
@@ -0,0 +1,16 @@
+<!--
+  Copyright 2014 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<menu xmlns:android="http://schemas.android.com/apk/res/android" />
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 00000000..22074a2b
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 00000000..03d19741
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 00000000..8c1ea66f
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 00000000..34c9cd13
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 00000000..0b2948f7
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 00000000..782c64aa
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="app_name">DirectorySelection</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+            This sample explains how to use Directory selection API, which was introduced
+            in Android 5.0.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/dimens.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/dimens.xml
new file mode 100644
index 00000000..53d0182c
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<resources>
+    <dimen name="directory_item_height">72dp</dimen>
+</resources>
+\ No newline at end of file
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/strings.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/strings.xml
new file mode 100644
index 00000000..24d59dde
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/strings.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="open_directory">Open directory</string>
+    <string name="create_directory">Create Directory</string>
+    <string name="selected_directory">"Selected Directory : "</string>
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/styles.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/styles.xml
new file mode 100644
index 00000000..38441f38
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/styles.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <style name="DirectoryEntryNameFont" parent="@android:style/TextAppearance.Medium">
+        <item name="android:textColor">#000000</item>
+    </style>
+</resources>
+\ No newline at end of file
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 00000000..39e710b5
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 00000000..6e7d593d
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectoryEntryAdapterTest.java b/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectoryEntryAdapterTest.java
new file mode 100644
index 00000000..97b26293
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectoryEntryAdapterTest.java
@@ -0,0 +1,82 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+* Copyright (C) 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.example.android.directoryselection;
+
+import android.test.ActivityInstrumentationTestCase2;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Tests for {@link DirectorySelectionFragment}.
+ */
+public class DirectoryEntryAdapterTest
+        extends ActivityInstrumentationTestCase2<DirectorySelectionActivity> {
+
+    private static final String FILE1 = "file1";
+    private static final String MIME_TYPE1 = "text/appliaction";
+    private static final String DIRECTORY1 = "directory1";
+
+    private DirectorySelectionActivity mTestActivity;
+    private DirectorySelectionFragment mTestFragment;
+    private DirectoryEntryAdapter mAdapter;
+    private List<DirectoryEntry> mDirectoryEntries;
+
+    public DirectoryEntryAdapterTest() {
+        super(DirectorySelectionActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        mTestActivity = getActivity();
+        mTestFragment = (DirectorySelectionFragment)
+                mTestActivity.getSupportFragmentManager().getFragments().get(0);
+        mDirectoryEntries = new ArrayList<>();
+
+        DirectoryEntry file = new DirectoryEntry();
+        file.fileName = FILE1;
+        file.mimeType = MIME_TYPE1;
+        mDirectoryEntries.add(file);
+
+        DirectoryEntry directory = new DirectoryEntry();
+        directory.fileName = DIRECTORY1;
+        directory.mimeType = DirectoryEntryAdapter.DIRECTORY_MIME_TYPE;
+        mDirectoryEntries.add(directory);
+    }
+
+    public void testGetItemCount() {
+        mTestFragment.mAdapter.setDirectoryEntries(mDirectoryEntries);
+
+        assertEquals(2, mTestFragment.mAdapter.getItemCount());
+    }
+}
diff --git a/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectorySelectionActivityTest.java b/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectorySelectionActivityTest.java
new file mode 100644
index 00000000..8f767aef
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectorySelectionActivityTest.java
@@ -0,0 +1,56 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.directoryselection;
+
+import android.test.ActivityInstrumentationTestCase2;
+
+/**
+ * Tests for {@link DirectorySelectionActivity}.
+ */
+public class DirectorySelectionActivityTest
+        extends ActivityInstrumentationTestCase2<DirectorySelectionActivity> {
+
+    private DirectorySelectionActivity mTestActivity;
+    private DirectorySelectionFragment mTestFragment;
+
+    public DirectorySelectionActivityTest() {
+        super(DirectorySelectionActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        // Starts the activity under test using the default Intent with:
+        // action = {@link Intent#ACTION_MAIN}
+        // flags = {@link Intent#FLAG_ACTIVITY_NEW_TASK}
+        // All other fields are null or empty.
+        mTestActivity = getActivity();
+        mTestFragment = (DirectorySelectionFragment)
+                mTestActivity.getSupportFragmentManager().getFragments().get(0);
+    }
+
+    /**
+     * Test if the test fixture has been set up correctly.
+     */
+    public void testPreconditions() {
+        //Try to add a message to add context to your assertions. These messages will be shown if
+        //a tests fails and make it easy to understand why a test failed
+        assertNotNull("mTestActivity is null", mTestActivity);
+        assertNotNull("mTestFragment is null", mTestFragment);
+    }
+}
diff --git a/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectorySelectionFragmentTest.java b/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectorySelectionFragmentTest.java
new file mode 100644
index 00000000..90cd30f7
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/Application/tests/src/com/example/android/directoryselection/DirectorySelectionFragmentTest.java
@@ -0,0 +1,68 @@
+/*
+* Copyright 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+* Copyright (C) 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.example.android.directoryselection;
+
+import android.test.ActivityInstrumentationTestCase2;
+
+/**
+ * Tests for {@link com.example.android.directoryselection.DirectorySelectionFragment}.
+ */
+public class DirectorySelectionFragmentTest
+        extends ActivityInstrumentationTestCase2<DirectorySelectionActivity> {
+
+    private DirectorySelectionActivity mTestActivity;
+    private DirectorySelectionFragment mTestFragment;
+
+    public DirectorySelectionFragmentTest() {
+        super(DirectorySelectionActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+
+        // Starts the activity under test using the default Intent with:
+        // action = {@link Intent#ACTION_MAIN}
+        // flags = {@link Intent#FLAG_ACTIVITY_NEW_TASK}
+        // All other fields are null or empty.
+        mTestActivity = getActivity();
+        mTestFragment = (DirectorySelectionFragment)
+                mTestActivity.getSupportFragmentManager().getFragments().get(0);
+    }
+
+    public void testPreconditions() {
+        assertNotNull(mTestFragment.mCurrentDirectoryTextView);
+        assertNotNull(mTestFragment.mCreateDirectoryButton);
+        assertNotNull(mTestFragment.mRecyclerView);
+        assertNotNull(mTestFragment.mAdapter);
+        assertNotNull(mTestFragment.mLayoutManager);
+    }
+}
diff --git a/prebuilts/gradle/DirectorySelection/CONTRIBUTING.md b/prebuilts/gradle/DirectorySelection/CONTRIBUTING.md
new file mode 100644
index 00000000..faa8b5c6
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/DirectorySelection/LICENSE b/prebuilts/gradle/DirectorySelection/LICENSE
new file mode 100644
index 00000000..1af981f5
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
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+      direction or management of such entity, whether by contract or
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2014 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/prebuilts/gradle/DirectorySelection/NOTICE b/prebuilts/gradle/DirectorySelection/NOTICE
new file mode 100644
index 00000000..7eede3de
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/NOTICE
@@ -0,0 +1,15 @@
+This sample uses the following software:
+
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/prebuilts/gradle/DirectorySelection/README.md b/prebuilts/gradle/DirectorySelection/README.md
new file mode 100644
index 00000000..1d3fb33c
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/README.md
@@ -0,0 +1,154 @@
+Android DirectorySelection Sample
+===================================
+
+A basic app showing how to use Directory Selection API to let users
+select an entire directory subtree, which extends the Storage Access Framework
+introduced in Android 4.4 (API level 19).
+
+Introduction
+------------
+
+The [Directory Selection][1] API, which was introduced in Android 5.0 (API level 21)
+extends the [Storage Access Framework][2] to let users select an entire directory subtree,
+giving apps read/write access to all contained documents without requiring user
+confirmation for each item.
+
+To select a directory subtree, build and send an [OPEN_DOCUMENT_TREE intent][3] like in the
+following code:
+
+```java
+Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);
+startActivityForResult(intent, REQUEST_CODE_OPEN_DIRECTORY);
+```
+
+The system displays all [DocumentsProvider][4] instances that support subtree selection,
+ letting the user browse and select a directory.
+
+The returned URI represents access to the selected subtree. You can then use
+[buildChildDocumentsUriUsingTree()][5] to access to the child documents and
+[buildDocumentUriUsingTree()][6] to access to the selected directory itself along with [query()][7]
+to explore the subtree.
+
+This example explores the child documents and the selected document by following code:
+
+```java
+@Override
+public void onActivityResult(int requestCode, int resultCode, Intent data) {
+    super.onActivityResult(requestCode, resultCode, data);
+    if (requestCode == REQUEST_CODE_OPEN_DIRECTORY && resultCode == Activity.RESULT_OK) {
+        updateDirectoryEntries(data.getData());
+    }
+}
+
+void updateDirectoryEntries(Uri uri) {
+    ContentResolver contentResolver = getActivity().getContentResolver();
+    Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
+            DocumentsContract.getTreeDocumentId(uri));
+    Uri childrenUri = DocumentsContract.buildChildDocumentsUriUsingTree(uri,
+            DocumentsContract.getTreeDocumentId(uri));
+
+    Cursor docCursor = contentResolver.query(docUri, new String[]{
+            Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
+    try {
+        while (docCursor.moveToNext()) {
+            Log.d(TAG, "found doc =" + docCursor.getString(0) + ", mime=" + docCursor
+                    .getString(1));
+            mCurrentDirectoryUri = uri;
+            mCurrentDirectoryTextView.setText(docCursor.getString(0));
+            mCreateDirectoryButton.setEnabled(true);
+        }
+    } finally {
+        closeQuietly(docCursor);
+    }
+
+    Cursor childCursor = contentResolver.query(childrenUri, new String[]{
+            Document.COLUMN_DISPLAY_NAME, Document.COLUMN_MIME_TYPE}, null, null, null);
+    try {
+        List<DirectoryEntry> directoryEntries = new ArrayList<>();
+        while (childCursor.moveToNext()) {
+            Log.d(TAG, "found child=" + childCursor.getString(0) + ", mime=" + childCursor
+                    .getString(1));
+            DirectoryEntry entry = new DirectoryEntry();
+            entry.fileName = childCursor.getString(0);
+            entry.mimeType = childCursor.getString(1);
+            directoryEntries.add(entry);
+        }
+        mAdapter.setDirectoryEntries(directoryEntries);
+        mAdapter.notifyDataSetChanged();
+    } finally {
+        closeQuietly(childCursor);
+    }
+}
+```
+
+Also, the new [createDocument()][8] method lets you create new documents or directories
+anywhere under the subtree.
+
+This example creates a new directory by following code:
+
+```java
+ContentResolver contentResolver = getActivity().getContentResolver();
+Uri docUri = DocumentsContract.buildDocumentUriUsingTree(uri,
+        DocumentsContract.getTreeDocumentId(uri));
+Uri directoryUri = DocumentsContract
+        .createDocument(contentResolver, docUri, Document.MIME_TYPE_DIR, directoryName);
+```
+
+[1]: https://developer.android.com/about/versions/android-5.0.html#Storage
+[2]: https://developer.android.com/guide/topics/providers/document-provider.html
+[3]: https://developer.android.com/reference/android/content/Intent.html#ACTION_OPEN_DOCUMENT_TREE
+[4]: https://developer.android.com/reference/android/provider/DocumentsProvider.html
+[5]: https://developer.android.com/reference/android/provider/DocumentsContract.html#buildChildDocumentsUriUsingTree(android.net.Uri%2C%20java.lang.String)
+[6]: https://developer.android.com/reference/android/provider/DocumentsContract.html#buildDocumentUriUsingTree(android.net.Uri%2C%20java.lang.String)
+[7]: https://developer.android.com/reference/android/content/ContentResolver.html#query(android.net.Uri%2C%20java.lang.String%5B%5D%2C%20java.lang.String%2C%20java.lang.String%5B%5D%2C%20java.lang.String)
+[8]: https://developer.android.com/reference/android/provider/DocumentsContract.html#createDocument(android.content.ContentResolver%2C%20android.net.Uri%2C%20java.lang.String%2C%20java.lang.String)
+
+Pre-requisites
+--------------
+
+- Android SDK v21
+- Android Build Tools v21.1.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/screenshot-1.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot-2.png" height="400" alt="Screenshot"/> <img src="screenshots/screenshot-3.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-DirectorySelection
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/DirectorySelection/build.gradle b/prebuilts/gradle/DirectorySelection/build.gradle
new file mode 100644
index 00000000..1dac6def
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/DirectorySelection/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/DirectorySelection/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..8c0fb64a
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/gradle/wrapper/gradle-wrapper.jar
diff --git a/prebuilts/gradle/DirectorySelection/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/DirectorySelection/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..3e37868a
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Dec 03 14:12:05 JST 2014
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/prebuilts/gradle/DirectorySelection/gradlew b/prebuilts/gradle/DirectorySelection/gradlew
new file mode 100755
index 00000000..91a7e269
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/DirectorySelection/gradlew.bat b/prebuilts/gradle/DirectorySelection/gradlew.bat
new file mode 100644
index 00000000..aec99730
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/DirectorySelection/screenshots/screenshot-1.png b/prebuilts/gradle/DirectorySelection/screenshots/screenshot-1.png
new file mode 100644
index 00000000..a4310dc7
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/screenshots/screenshot-1.png
diff --git a/prebuilts/gradle/DirectorySelection/screenshots/screenshot-2.png b/prebuilts/gradle/DirectorySelection/screenshots/screenshot-2.png
new file mode 100644
index 00000000..cd275075
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/screenshots/screenshot-2.png
diff --git a/prebuilts/gradle/DirectorySelection/screenshots/screenshot-3.png b/prebuilts/gradle/DirectorySelection/screenshots/screenshot-3.png
new file mode 100644
index 00000000..07954754
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/screenshots/screenshot-3.png
diff --git a/prebuilts/gradle/DirectorySelection/screenshots/web-icon.png b/prebuilts/gradle/DirectorySelection/screenshots/web-icon.png
new file mode 100755
index 00000000..f0a573f6
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/screenshots/web-icon.png
diff --git a/prebuilts/gradle/DirectorySelection/settings.gradle b/prebuilts/gradle/DirectorySelection/settings.gradle
new file mode 100644
index 00000000..9464a359
--- /dev/null
+++ b/prebuilts/gradle/DirectorySelection/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle b/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle
index c5134fb4..292c2d14 100644
--- a/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle
+++ b/prebuilts/gradle/DisplayingBitmaps/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/DocumentCentricApps/Application/build.gradle b/prebuilts/gradle/DocumentCentricApps/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/DocumentCentricApps/Application/build.gradle
+++ b/prebuilts/gradle/DocumentCentricApps/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle b/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle
+++ b/prebuilts/gradle/DocumentCentricRelinquishIdentity/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/DoneBar/Application/build.gradle b/prebuilts/gradle/DoneBar/Application/build.gradle
index 0427861a..37884d80 100644
--- a/prebuilts/gradle/DoneBar/Application/build.gradle
+++ b/prebuilts/gradle/DoneBar/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/DrawableTinting/Application/build.gradle b/prebuilts/gradle/DrawableTinting/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/DrawableTinting/Application/build.gradle
+++ b/prebuilts/gradle/DrawableTinting/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/ElevationBasic/Application/build.gradle b/prebuilts/gradle/ElevationBasic/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/ElevationBasic/Application/build.gradle
+++ b/prebuilts/gradle/ElevationBasic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/ElevationDrag/Application/build.gradle b/prebuilts/gradle/ElevationDrag/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/ElevationDrag/Application/build.gradle
+++ b/prebuilts/gradle/ElevationDrag/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/ElizaChat/Application/build.gradle b/prebuilts/gradle/ElizaChat/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/ElizaChat/Application/build.gradle
+++ b/prebuilts/gradle/ElizaChat/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle b/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle
+++ b/prebuilts/gradle/FloatingActionButtonBasic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/FragmentTransition/Application/build.gradle b/prebuilts/gradle/FragmentTransition/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/FragmentTransition/Application/build.gradle
+++ b/prebuilts/gradle/FragmentTransition/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/HdrViewfinder/Application/build.gradle b/prebuilts/gradle/HdrViewfinder/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/HdrViewfinder/Application/build.gradle
+++ b/prebuilts/gradle/HdrViewfinder/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/HorizontalPaging/Application/build.gradle b/prebuilts/gradle/HorizontalPaging/Application/build.gradle
index 8380768f..8b72299a 100644
--- a/prebuilts/gradle/HorizontalPaging/Application/build.gradle
+++ b/prebuilts/gradle/HorizontalPaging/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/ImmersiveMode/Application/build.gradle b/prebuilts/gradle/ImmersiveMode/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/ImmersiveMode/Application/build.gradle
+++ b/prebuilts/gradle/ImmersiveMode/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/Interpolator/Application/build.gradle b/prebuilts/gradle/Interpolator/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/Interpolator/Application/build.gradle
+++ b/prebuilts/gradle/Interpolator/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/JobScheduler/Application/build.gradle b/prebuilts/gradle/JobScheduler/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/JobScheduler/Application/build.gradle
+++ b/prebuilts/gradle/JobScheduler/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/JumpingJack/.google/packaging.yaml b/prebuilts/gradle/JumpingJack/.google/packaging.yaml
index 618c275b..b2c99852 100644
--- a/prebuilts/gradle/JumpingJack/.google/packaging.yaml
+++ b/prebuilts/gradle/JumpingJack/.google/packaging.yaml
@@ -9,4 +9,9 @@ categories:   [Wearable]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-JumpingJack
+level:        INTERMEDIATE
+icon:         screenshots/web-icon.png
+apiRefs:
+    - android:android.hardware.SensorEvent
+    - android:android.hardware.SensorEventManager
 license: apache2
diff --git a/prebuilts/gradle/JumpingJack/README.md b/prebuilts/gradle/JumpingJack/README.md
index d87e86fb..f2c82c3e 100644
--- a/prebuilts/gradle/JumpingJack/README.md
+++ b/prebuilts/gradle/JumpingJack/README.md
@@ -1,7 +1,44 @@
 Android JumpingJack Sample
 ===================================
 
-Uses the Gravity sensor to count how many jumping jacks you have performed.
+A basic sample showing how to use the Gravity sensor on the wearable device
+by counting how many jumping jacks you have performed.
+
+Introduction
+------------
+
+[SensorEventListener][1] offers you methods used for receiving notifications from the
+[SensorManager][2] when sensor values have changed.
+
+This example counts how many times Jumping Jakcs are performed by detecting the value
+of the Gravity sensor by the following code:
+
+```java
+@Override
+public void onSensorChanged(SensorEvent event) {
+    detectJump(event.values[0], event.timestamp);
+}
+
+private void detectJump(float xValue, long timestamp) {
+    if ((Math.abs(xValue) > GRAVITY_THRESHOLD)) {
+        if(timestamp - mLastTime < TIME_THRESHOLD_NS && mUp != (xValue > 0)) {
+            onJumpDetected(!mUp);
+        }
+        mUp = xValue > 0;
+        mLastTime = timestamp;
+    }
+}
+```
+
+The detectJump method above assumes that when a person is wearing the watch, the x-component of gravity
+as measured by the Gravity Sensor is +9.8 when the hand is downward and -9.8 when the hand
+is upward (signs are reversed if the watch is worn on the right hand). Since the upward or
+downward may not be completely accurate, we leave some room and instead of 9.8, we use
+GRAVITY_THRESHOLD (7.0f). We also consider the up <-> down movement successful if it takes less than
+TIME_THRESHOLD_NS (2000000000 nanoseconds).
+
+[1]: http://developer.android.com/reference/android/hardware/SensorEventListener.html
+[2]: http://developer.android.com/reference/android/hardware/SensorManager.html
 
 Pre-requisites
 --------------
@@ -10,6 +47,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/jumping_jack.gif" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/JumpingJack/screenshots/web-icon.png b/prebuilts/gradle/JumpingJack/screenshots/web-icon.png
new file mode 100644
index 00000000..da3c00a9
--- /dev/null
+++ b/prebuilts/gradle/JumpingJack/screenshots/web-icon.png
diff --git a/prebuilts/gradle/LNotifications/Application/build.gradle b/prebuilts/gradle/LNotifications/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/LNotifications/Application/build.gradle
+++ b/prebuilts/gradle/LNotifications/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/MediaBrowserService/.google/packaging.yaml b/prebuilts/gradle/MediaBrowserService/.google/packaging.yaml
index a126b516..09141fd3 100644
--- a/prebuilts/gradle/MediaBrowserService/.google/packaging.yaml
+++ b/prebuilts/gradle/MediaBrowserService/.google/packaging.yaml
@@ -9,4 +9,12 @@ categories:   [Media]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-MediaBrowserService
+level:        ADVANCED
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.service.media.MediaBrowserService
+    - android:android.media.browse.MediaBrowser
+    - android:android.media.session.MediaSession
+    - android:android.media.session.MediaController
+    - android:android.app.Notification.MediaStyle
 license: apache2
diff --git a/prebuilts/gradle/MediaBrowserService/Application/build.gradle b/prebuilts/gradle/MediaBrowserService/Application/build.gradle
index 07e791da..bfccf049 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/build.gradle
+++ b/prebuilts/gradle/MediaBrowserService/Application/build.gradle
@@ -13,9 +13,9 @@ apply plugin: 'com.android.application'
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/MediaNotification.java b/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/MediaNotification.java
index 4456fdac..68727239 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/MediaNotification.java
+++ b/prebuilts/gradle/MediaBrowserService/Application/src/main/java/com/example/android/mediabrowserservice/MediaNotification.java
@@ -37,7 +37,6 @@ import android.media.session.MediaSession;
 import android.media.session.PlaybackState;
 import android.os.AsyncTask;
 import android.util.LruCache;
-import android.util.SparseArray;
 
 import com.example.android.mediabrowserservice.utils.BitmapHelper;
 import com.example.android.mediabrowserservice.utils.LogHelper;
@@ -65,7 +64,6 @@ public class MediaNotification extends BroadcastReceiver {
     private MediaSession.Token mSessionToken;
     private MediaController mController;
     private MediaController.TransportControls mTransportControls;
-    private final SparseArray<PendingIntent> mIntents = new SparseArray<PendingIntent>();
     private final LruCache<String, Bitmap> mAlbumArtCache;
 
     private PlaybackState mPlaybackState;
@@ -75,6 +73,8 @@ public class MediaNotification extends BroadcastReceiver {
     private NotificationManager mNotificationManager;
     private Notification.Action mPlayPauseAction;
 
+    private PendingIntent mPauseIntent, mPlayIntent, mPreviousIntent, mNextIntent;
+
     private String mCurrentAlbumArt;
     private int mNotificationColor;
 
@@ -99,14 +99,14 @@ public class MediaNotification extends BroadcastReceiver {
                 .getSystemService(Context.NOTIFICATION_SERVICE);
 
         String pkg = mService.getPackageName();
-        mIntents.put(R.drawable.ic_pause_white_24dp, PendingIntent.getBroadcast(mService, 100,
-                new Intent(ACTION_PAUSE).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT));
-        mIntents.put(R.drawable.ic_play_arrow_white_24dp, PendingIntent.getBroadcast(mService, 100,
-                new Intent(ACTION_PLAY).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT));
-        mIntents.put(R.drawable.ic_skip_previous_white_24dp, PendingIntent.getBroadcast(mService, 100,
-                new Intent(ACTION_PREV).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT));
-        mIntents.put(R.drawable.ic_skip_next_white_24dp, PendingIntent.getBroadcast(mService, 100,
-                new Intent(ACTION_NEXT).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT));
+        mPauseIntent = PendingIntent.getBroadcast(mService, 100,
+                new Intent(ACTION_PAUSE).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT);
+        mPlayIntent = PendingIntent.getBroadcast(mService, 100,
+                new Intent(ACTION_PLAY).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT);
+        mPreviousIntent = PendingIntent.getBroadcast(mService, 100,
+                new Intent(ACTION_PREV).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT);
+        mNextIntent = PendingIntent.getBroadcast(mService, 100,
+                new Intent(ACTION_NEXT).setPackage(pkg), PendingIntent.FLAG_CANCEL_CURRENT);
     }
 
     protected int getNotificationColor() {
@@ -241,8 +241,7 @@ public class MediaNotification extends BroadcastReceiver {
         if ((mPlaybackState.getActions() & PlaybackState.ACTION_SKIP_TO_PREVIOUS) != 0) {
             mNotificationBuilder
                     .addAction(R.drawable.ic_skip_previous_white_24dp,
-                            mService.getString(R.string.label_previous),
-                            mIntents.get(R.drawable.ic_skip_previous_white_24dp));
+                            mService.getString(R.string.label_previous), mPreviousIntent);
             playPauseActionIndex = 1;
         }
 
@@ -251,8 +250,7 @@ public class MediaNotification extends BroadcastReceiver {
         // If skip to next action is enabled
         if ((mPlaybackState.getActions() & PlaybackState.ACTION_SKIP_TO_NEXT) != 0) {
             mNotificationBuilder.addAction(R.drawable.ic_skip_next_white_24dp,
-                    mService.getString(R.string.label_next),
-                    mIntents.get(R.drawable.ic_skip_next_white_24dp));
+                    mService.getString(R.string.label_next), mNextIntent);
         }
 
         MediaDescription description = mMetadata.getDescription();
@@ -294,22 +292,24 @@ public class MediaNotification extends BroadcastReceiver {
 
     private void updatePlayPauseAction() {
         LogHelper.d(TAG, "updatePlayPauseAction");
-        String playPauseLabel = "";
-        int playPauseIcon;
+        String label;
+        int icon;
+        PendingIntent intent;
         if (mPlaybackState.getState() == PlaybackState.STATE_PLAYING) {
-            playPauseLabel = mService.getString(R.string.label_pause);
-            playPauseIcon = R.drawable.ic_pause_white_24dp;
+            label = mService.getString(R.string.label_pause);
+            icon = R.drawable.ic_pause_white_24dp;
+            intent = mPauseIntent;
         } else {
-            playPauseLabel = mService.getString(R.string.label_play);
-            playPauseIcon = R.drawable.ic_play_arrow_white_24dp;
+            label = mService.getString(R.string.label_play);
+            icon = R.drawable.ic_play_arrow_white_24dp;
+            intent = mPlayIntent;
         }
         if (mPlayPauseAction == null) {
-            mPlayPauseAction = new Notification.Action(playPauseIcon, playPauseLabel,
-                    mIntents.get(playPauseIcon));
+            mPlayPauseAction = new Notification.Action(icon, label, intent);
         } else {
-            mPlayPauseAction.icon = playPauseIcon;
-            mPlayPauseAction.title = playPauseLabel;
-            mPlayPauseAction.actionIntent = mIntents.get(playPauseIcon);
+            mPlayPauseAction.icon = icon;
+            mPlayPauseAction.title = label;
+            mPlayPauseAction.actionIntent = intent;
         }
     }
 
diff --git a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-hdpi/ic_launcher.png
index 47d6854e..05ef6f65 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-hdpi/ic_launcher.png
+++ b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-mdpi/ic_launcher.png
index 01b53fd5..f894fb84 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-mdpi/ic_launcher.png
+++ b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xhdpi/ic_launcher.png
index af762f2b..43ade5e6 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xhdpi/ic_launcher.png
+++ b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
index eef47aa3..3058c27f 100644
--- a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
+++ b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xxxhdpi/ic_launcher.png b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xxxhdpi/ic_launcher.png
new file mode 100644
index 00000000..6b4e4a21
--- /dev/null
+++ b/prebuilts/gradle/MediaBrowserService/Application/src/main/res/drawable-xxxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MediaBrowserService/README.md b/prebuilts/gradle/MediaBrowserService/README.md
index 0072d93a..d3426511 100644
--- a/prebuilts/gradle/MediaBrowserService/README.md
+++ b/prebuilts/gradle/MediaBrowserService/README.md
@@ -12,6 +12,62 @@ connected to Android Auto, the same service provides data and callback
 to the Android Auto UI in the same manner as it provides them to the
 local UI.
 
+Introduction
+------------
+
+To implement a MediaBrowserService, you need to:
+
+- Extend android.service.media.MediaBrowserService, implementing the media
+  browsing related methods onGetRoot and onLoadChildren;
+
+- In onCreate, start a new MediaSession and call super.setSessionToken() with
+  this MediaSession's token;
+
+- Set a MediaSession.Callback class on the MediaSession. The callback class
+  will receive all the user's actions, like play, pause, etc;
+
+- Handle all the actual music playing using any method your app prefers
+  (for example, the Android MediaPlayer class)
+
+- Whenever it changes, update info about the playing item and the playing
+  queue using MediaSession corresponding methods (setMetadata,
+  setPlaybackState, setQueue, setQueueTitle, etc)
+
+- Handle AudioManager focus change events and react appropriately
+  (e.g. pause when audio focus is lost)
+
+
+To make it compatible with Android Auto, you also need to:
+
+- Declare a meta-data tag in AndroidManifest.xml linking to a xml resource
+  with a automotiveApp root element. For a media app, this must include
+  an &lt;uses name="media"/&gt; element as a child.
+
+  For example, in AndroidManifest.xml:
+```
+     <meta-data android:name="com.google.android.gms.car.application"
+       android:resource="@xml/automotive_app_desc"/>
+```
+
+  And in res/xml/automotive\_app\_desc.xml:
+```
+      <?xml version="1.0" encoding="utf-8"?>
+      <automotiveApp>
+          <uses name="media"/>
+      </automotiveApp>
+```
+
+- Declare and export the service in AndroidManifest.xml:
+```
+    <service
+        android:name=".service.MusicService"
+        android:exported="true">
+      <intent-filter>
+         <action android:name="android.media.browse.MediaBrowserService" />
+      </intent-filter>
+    </service>
+```
+
 Pre-requisites
 --------------
 
@@ -19,6 +75,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/1-main.png" height="400" alt="Screenshot"/> <img src="screenshots/2-music-play.png" height="400" alt="Screenshot"/> <img src="screenshots/3-music-notification.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/MediaBrowserService/screenshots/1-main.png b/prebuilts/gradle/MediaBrowserService/screenshots/1-main.png
new file mode 100644
index 00000000..1b17d0e7
--- /dev/null
+++ b/prebuilts/gradle/MediaBrowserService/screenshots/1-main.png
diff --git a/prebuilts/gradle/MediaBrowserService/screenshots/2-music-play.png b/prebuilts/gradle/MediaBrowserService/screenshots/2-music-play.png
new file mode 100644
index 00000000..1c1439cf
--- /dev/null
+++ b/prebuilts/gradle/MediaBrowserService/screenshots/2-music-play.png
diff --git a/prebuilts/gradle/MediaBrowserService/screenshots/3-music-notification.png b/prebuilts/gradle/MediaBrowserService/screenshots/3-music-notification.png
new file mode 100644
index 00000000..c86c045f
--- /dev/null
+++ b/prebuilts/gradle/MediaBrowserService/screenshots/3-music-notification.png
diff --git a/prebuilts/gradle/MediaBrowserService/screenshots/icon-web.png b/prebuilts/gradle/MediaBrowserService/screenshots/icon-web.png
new file mode 100644
index 00000000..99928a86
--- /dev/null
+++ b/prebuilts/gradle/MediaBrowserService/screenshots/icon-web.png
diff --git a/prebuilts/gradle/MediaEffects/Application/build.gradle b/prebuilts/gradle/MediaEffects/Application/build.gradle
index 0427861a..37884d80 100644
--- a/prebuilts/gradle/MediaEffects/Application/build.gradle
+++ b/prebuilts/gradle/MediaEffects/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/MediaRecorder/Application/build.gradle b/prebuilts/gradle/MediaRecorder/Application/build.gradle
index 0427861a..37884d80 100644
--- a/prebuilts/gradle/MediaRecorder/Application/build.gradle
+++ b/prebuilts/gradle/MediaRecorder/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/MediaRouter/Application/build.gradle b/prebuilts/gradle/MediaRouter/Application/build.gradle
index f2fbc366..254d247b 100644
--- a/prebuilts/gradle/MediaRouter/Application/build.gradle
+++ b/prebuilts/gradle/MediaRouter/Application/build.gradle
@@ -17,12 +17,12 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
-    compile "com.android.support:appcompat-v7:20.+"
-    compile "com.android.support:mediarouter-v7:20.+"
+    compile "com.android.support:appcompat-v7:21.0.2"
+    compile "com.android.support:mediarouter-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
diff --git a/prebuilts/gradle/MessagingService/Application/build.gradle b/prebuilts/gradle/MessagingService/Application/build.gradle
index 07e791da..bfccf049 100644
--- a/prebuilts/gradle/MessagingService/Application/build.gradle
+++ b/prebuilts/gradle/MessagingService/Application/build.gradle
@@ -13,9 +13,9 @@ apply plugin: 'com.android.application'
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-hdpi/ic_launcher.png
index 06d85f16..506cbc5a 100644
--- a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-hdpi/ic_launcher.png
+++ b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-mdpi/ic_launcher.png
index 4e1cc86b..6296a036 100644
--- a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-mdpi/ic_launcher.png
+++ b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xhdpi/ic_launcher.png
index 92f1e2dd..52d3c5ec 100644
--- a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xhdpi/ic_launcher.png
+++ b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
index 2476cbdd..444fb390 100644
--- a/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
+++ b/prebuilts/gradle/MessagingService/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/MessagingService/README.md b/prebuilts/gradle/MessagingService/README.md
index bc7a3657..698adf40 100644
--- a/prebuilts/gradle/MessagingService/README.md
+++ b/prebuilts/gradle/MessagingService/README.md
@@ -9,16 +9,38 @@ Each unread conversation from a user is sent as a distinct notification.
 Introduction
 ------------
 
-This sample shows a simple service that sends [notifications][1] using
-NotificationCompat.
-
-In addition to sending a notification, it also extends
-the notification with a [CarExtender][2] to make it compatible with Android Auto.
-
-Each unread conversation from a user is sent as a distinct notification.
-
-[1]: https://developer.android.com/guide/topics/ui/notifiers/notifications.html
-[2]: https://developer.android.com/reference/android/support/v4/app/NotificationCompat.CarExtender.html
+#### Checklist while building a messaging app that supports Android Auto:
+1. Ensure that Message notifications are extended using
+NotificationCompat.Builder.extend(new CarExtender()...)
+2. Declare a meta-data tag to your AndroidManifest.xml to specify that your app
+is automotive enabled.
+
+example: AndroidManifest.xml
+
+```
+       <meta-data android:name="com.google.android.gms.car.application"
+                   android:resource="@xml/automotive_app_desc"/>
+```
+
+Include the following to indicate that the application wants to show notifications on
+the Android Auto overview screen.
+
+example: res/xml/automotive\_app\_desc.xml
+```
+        <automotiveApp>
+            <uses name="notification"/>
+        </automotiveApp>
+```
+
+#### Flow
+MessagingFragment is shown to the user. Depending on the button clicked, the MessagingService is
+sent a message. MessagingService in turn creates notifications which can be viewed either on the
+device or in the messaging-simulator.
+
+When a message is read, the associated PendingIntent is triggered and MessageReadReceiver is called
+with the appropriate conversationId. Similarly, when a reply is received, the MessageReplyReceiver
+is called with the appropriate conversationId. MessageLogger logs each event and shows them in a
+TextView in MessagingFragment for correlation.
 
 Pre-requisites
 --------------
diff --git a/prebuilts/gradle/MessagingService/screenshots/icon-web.png b/prebuilts/gradle/MessagingService/screenshots/icon-web.png
index 2476cbdd..3dfd2ec8 100644
--- a/prebuilts/gradle/MessagingService/screenshots/icon-web.png
+++ b/prebuilts/gradle/MessagingService/screenshots/icon-web.png
diff --git a/prebuilts/gradle/NavigationDrawer/Application/build.gradle b/prebuilts/gradle/NavigationDrawer/Application/build.gradle
index c68979c3..bff2be09 100644
--- a/prebuilts/gradle/NavigationDrawer/Application/build.gradle
+++ b/prebuilts/gradle/NavigationDrawer/Application/build.gradle
@@ -18,10 +18,10 @@ repositories {
 dependencies {
 
 
-    compile "com.android.support:support-v13:20.+"
-    compile "com.android.support:appcompat-v7:20.+"
-    compile "com.android.support:recyclerview-v7:+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:appcompat-v7:21.0.2"
+    compile "com.android.support:recyclerview-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
diff --git a/prebuilts/gradle/NetworkConnect/Application/build.gradle b/prebuilts/gradle/NetworkConnect/Application/build.gradle
index 90737fcc..3e25a83b 100644
--- a/prebuilts/gradle/NetworkConnect/Application/build.gradle
+++ b/prebuilts/gradle/NetworkConnect/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/PdfRendererBasic/Application/build.gradle b/prebuilts/gradle/PdfRendererBasic/Application/build.gradle
index e77578c4..e86efa99 100644
--- a/prebuilts/gradle/PdfRendererBasic/Application/build.gradle
+++ b/prebuilts/gradle/PdfRendererBasic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/PermissionRequest/.google/packaging.yaml b/prebuilts/gradle/PermissionRequest/.google/packaging.yaml
new file mode 100644
index 00000000..fc79469a
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/.google/packaging.yaml
@@ -0,0 +1,18 @@
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       PUBLISHED
+technologies: [Android]
+categories:   [Content]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-PermissionRequest
+level:        INTERMEDIATE
+icon:         screenshots/icon_web.png
+apiRefs:
+    - android:android.webkit.PermissionRequest
+    - android:android.webkit.WebView
+    - android:android.webkit.WebChromeClient
+license: apache2
diff --git a/prebuilts/gradle/PermissionRequest/Application/build.gradle b/prebuilts/gradle/PermissionRequest/Application/build.gradle
new file mode 100644
index 00000000..71ddf508
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/build.gradle
@@ -0,0 +1,70 @@
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.0.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+
+dependencies {
+
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "21.1.1"
+
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 21
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..f8fd050c
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.permissionrequest"
+    android:versionCode="1"
+    android:versionName="1.0">
+
+    <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.CAMERA"/>
+
+    <application android:allowBackup="true"
+        android:label="@string/app_name"
+        android:icon="@drawable/ic_launcher"
+        android:theme="@style/AppTheme">
+
+        <activity android:name=".MainActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.css b/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.css
new file mode 100644
index 00000000..9d1364ce
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.css
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+body {
+    text-align: center;
+}
+
+div {
+    margin-bottom: 8px;
+}
+
+button {
+    height: 48px;
+    width: 80px;
+    font-weight: bold;
+    font-size: 14pt;
+}
+
+video {
+    width: 240px;
+    height: 180px;
+    transform: scaleX(-1); /* Mirror */
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.html b/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.html
new file mode 100644
index 00000000..a9729a33
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<!--
+  Copyright 2014 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<html>
+<head>
+    <title>sample</title>
+    <link rel="stylesheet" href="sample.css">
+</head>
+<body>
+
+<div>
+    <button id="toggle">Start</button>
+</div>
+<video id="video" autoplay></video>
+
+<script src="sample.js"></script>
+</body>
+</html>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.js b/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.js
new file mode 100644
index 00000000..e2806a0d
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/assets/sample.js
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+(function () {
+    "use strict";
+
+    navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia;
+    window.URL = window.URL || window.webkitURL;
+
+    window.onload = function () {
+
+        var video = document.querySelector('#video'),
+            toggle = document.querySelector('#toggle'),
+            stream = null;
+
+        if (!navigator.getUserMedia) {
+            console.error('getUserMedia not supported');
+        }
+
+        toggle.addEventListener('click', function () {
+            if (null === stream) {
+                // This call to "getUserMedia" initiates a PermissionRequest in the WebView.
+                navigator.getUserMedia({ video: true }, function (s) {
+                    stream = s;
+                    video.src = window.URL.createObjectURL(stream);
+                    toggle.innerText = 'Stop';
+                    console.log('Started');
+                }, function (error) {
+                    console.error('Error starting camera. Denied.');
+                });
+            } else {
+                stream.stop();
+                stream = null;
+                toggle.innerText = 'Start';
+                console.log('Stopped');
+            }
+        });
+
+        console.log('Page loaded');
+
+    };
+
+})();
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
new file mode 100644
index 00000000..3228927b
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
@@ -0,0 +1,52 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.common.activities;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogWrapper;
+
+/**
+ * Base launcher activity, to handle most of the common plumbing for samples.
+ */
+public class SampleActivityBase extends FragmentActivity {
+
+    public static final String TAG = "SampleActivityBase";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected  void onStart() {
+        super.onStart();
+        initializeLogging();
+    }
+
+    /** Set up targets to receive log data */
+    public void initializeLogging() {
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        // Wraps Android's native log framework
+        LogWrapper logWrapper = new LogWrapper();
+        Log.setLogNode(logWrapper);
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/Log.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/Log.java
new file mode 100644
index 00000000..17503c56
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/Log.java
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Helper class for a list (or tree) of LoggerNodes.
+ *
+ * <p>When this is set as the head of the list,
+ * an instance of it can function as a drop-in replacement for {@link android.util.Log}.
+ * Most of the methods in this class server only to map a method call in Log to its equivalent
+ * in LogNode.</p>
+ */
+public class Log {
+    // Grabbing the native values from Android's native logging facilities,
+    // to make for easy migration and interop.
+    public static final int NONE = -1;
+    public static final int VERBOSE = android.util.Log.VERBOSE;
+    public static final int DEBUG = android.util.Log.DEBUG;
+    public static final int INFO = android.util.Log.INFO;
+    public static final int WARN = android.util.Log.WARN;
+    public static final int ERROR = android.util.Log.ERROR;
+    public static final int ASSERT = android.util.Log.ASSERT;
+
+    // Stores the beginning of the LogNode topology.
+    private static LogNode mLogNode;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public static LogNode getLogNode() {
+        return mLogNode;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to.
+     */
+    public static void setLogNode(LogNode node) {
+        mLogNode = node;
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void println(int priority, String tag, String msg, Throwable tr) {
+        if (mLogNode != null) {
+            mLogNode.println(priority, tag, msg, tr);
+        }
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     */
+    public static void println(int priority, String tag, String msg) {
+        println(priority, tag, msg, null);
+    }
+
+   /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void v(String tag, String msg, Throwable tr) {
+        println(VERBOSE, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void v(String tag, String msg) {
+        v(tag, msg, null);
+    }
+
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void d(String tag, String msg, Throwable tr) {
+        println(DEBUG, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void d(String tag, String msg) {
+        d(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void i(String tag, String msg, Throwable tr) {
+        println(INFO, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void i(String tag, String msg) {
+        i(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, String msg, Throwable tr) {
+        println(WARN, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void w(String tag, String msg) {
+        w(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, Throwable tr) {
+        w(tag, null, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void e(String tag, String msg, Throwable tr) {
+        println(ERROR, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void e(String tag, String msg) {
+        e(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, String msg, Throwable tr) {
+        println(ASSERT, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void wtf(String tag, String msg) {
+        wtf(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, Throwable tr) {
+        wtf(tag, null, tr);
+    }
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogFragment.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogFragment.java
new file mode 100644
index 00000000..b302acd4
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogFragment.java
@@ -0,0 +1,109 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.common.logger;
+
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ScrollView;
+
+/**
+ * Simple fraggment which contains a LogView and uses is to output log data it receives
+ * through the LogNode interface.
+ */
+public class LogFragment extends Fragment {
+
+    private LogView mLogView;
+    private ScrollView mScrollView;
+
+    public LogFragment() {}
+
+    public View inflateViews() {
+        mScrollView = new ScrollView(getActivity());
+        ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT);
+        mScrollView.setLayoutParams(scrollParams);
+
+        mLogView = new LogView(getActivity());
+        ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams);
+        logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
+        mLogView.setLayoutParams(logParams);
+        mLogView.setClickable(true);
+        mLogView.setFocusable(true);
+        mLogView.setTypeface(Typeface.MONOSPACE);
+
+        // Want to set padding as 16 dips, setPadding takes pixels.  Hooray math!
+        int paddingDips = 16;
+        double scale = getResources().getDisplayMetrics().density;
+        int paddingPixels = (int) ((paddingDips * (scale)) + .5);
+        mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels);
+        mLogView.setCompoundDrawablePadding(paddingPixels);
+
+        mLogView.setGravity(Gravity.BOTTOM);
+        mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium);
+
+        mScrollView.addView(mLogView);
+        return mScrollView;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        View result = inflateViews();
+
+        mLogView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {}
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                mScrollView.fullScroll(ScrollView.FOCUS_DOWN);
+            }
+        });
+        return result;
+    }
+
+    public LogView getLogView() {
+        return mLogView;
+    }
+}
+\ No newline at end of file
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogNode.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogNode.java
new file mode 100644
index 00000000..bc37cabc
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogNode.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Basic interface for a logging system that can output to one or more targets.
+ * Note that in addition to classes that will output these logs in some format,
+ * one can also implement this interface over a filter and insert that in the chain,
+ * such that no targets further down see certain data, or see manipulated forms of the data.
+ * You could, for instance, write a "ToHtmlLoggerNode" that just converted all the log data
+ * it received to HTML and sent it along to the next node in the chain, without printing it
+ * anywhere.
+ */
+public interface LogNode {
+
+    /**
+     * Instructs first LogNode in the list to print the log data provided.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public void println(int priority, String tag, String msg, Throwable tr);
+
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogView.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogView.java
new file mode 100644
index 00000000..c01542b9
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogView.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.app.Activity;
+import android.content.Context;
+import android.util.*;
+import android.widget.TextView;
+
+/** Simple TextView which is used to output log data received through the LogNode interface.
+*/
+public class LogView extends TextView implements LogNode {
+
+    public LogView(Context context) {
+        super(context);
+    }
+
+    public LogView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public LogView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    /**
+     * Formats the log data and prints it out to the LogView.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+
+        
+        String priorityStr = null;
+
+        // For the purposes of this View, we want to print the priority as readable text.
+        switch(priority) {
+            case android.util.Log.VERBOSE:
+                priorityStr = "VERBOSE";
+                break;
+            case android.util.Log.DEBUG:
+                priorityStr = "DEBUG";
+                break;
+            case android.util.Log.INFO:
+                priorityStr = "INFO";
+                break;
+            case android.util.Log.WARN:
+                priorityStr = "WARN";
+                break;
+            case android.util.Log.ERROR:
+                priorityStr = "ERROR";
+                break;
+            case android.util.Log.ASSERT:
+                priorityStr = "ASSERT";
+                break;
+            default:
+                break;
+        }
+
+        // Handily, the Log class has a facility for converting a stack trace into a usable string.
+        String exceptionStr = null;
+        if (tr != null) {
+            exceptionStr = android.util.Log.getStackTraceString(tr);
+        }
+
+        // Take the priority, tag, message, and exception, and concatenate as necessary
+        // into one usable line of text.
+        final StringBuilder outputBuilder = new StringBuilder();
+
+        String delimiter = "\t";
+        appendIfNotNull(outputBuilder, priorityStr, delimiter);
+        appendIfNotNull(outputBuilder, tag, delimiter);
+        appendIfNotNull(outputBuilder, msg, delimiter);
+        appendIfNotNull(outputBuilder, exceptionStr, delimiter);
+
+        // In case this was originally called from an AsyncTask or some other off-UI thread,
+        // make sure the update occurs within the UI thread.
+        ((Activity) getContext()).runOnUiThread( (new Thread(new Runnable() {
+            @Override
+            public void run() {
+                // Display the text we just generated within the LogView.
+                appendToLog(outputBuilder.toString());
+            }
+        })));
+
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /** Takes a string and adds to it, with a separator, if the bit to be added isn't null. Since
+     * the logger takes so many arguments that might be null, this method helps cut out some of the
+     * agonizing tedium of writing the same 3 lines over and over.
+     * @param source StringBuilder containing the text to append to.
+     * @param addStr The String to append
+     * @param delimiter The String to separate the source and appended strings. A tab or comma,
+     *                  for instance.
+     * @return The fully concatenated String as a StringBuilder
+     */
+    private StringBuilder appendIfNotNull(StringBuilder source, String addStr, String delimiter) {
+        if (addStr != null) {
+            if (addStr.length() == 0) {
+                delimiter = "";
+            }
+
+            return source.append(addStr).append(delimiter);
+        }
+        return source;
+    }
+
+    // The next LogNode in the chain.
+    LogNode mNext;
+
+    /** Outputs the string as a new line of log data in the LogView. */
+    public void appendToLog(String s) {
+        append("\n" + s);
+    }
+
+
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogWrapper.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
new file mode 100644
index 00000000..16a9e7ba
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.util.Log;
+
+/**
+ * Helper class which wraps Android's native Log utility in the Logger interface.  This way
+ * normal DDMS output can be one of the many targets receiving and outputting logs simultaneously.
+ */
+public class LogWrapper implements LogNode {
+
+    // For piping:  The next node to receive Log data after this one has done its work.
+    private LogNode mNext;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /**
+     * Prints data out to the console using Android's native log mechanism.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        // There actually are log methods that don't take a msg parameter.  For now,
+        // if that's the case, just convert null to the empty string and move on.
+        String useMsg = msg;
+        if (useMsg == null) {
+            useMsg = "";
+        }
+
+        // If an exeption was provided, convert that exception to a usable string and attach
+        // it to the end of the msg method.
+        if (tr != null) {
+            msg += "\n" + Log.getStackTraceString(tr);
+        }
+
+        // This is functionally identical to Log.x(tag, useMsg);
+        // For instance, if priority were Log.VERBOSE, this would be the same as Log.v(tag, useMsg)
+        Log.println(priority, tag, useMsg);
+
+        // If this isn't the last node in the chain, move things along.
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
new file mode 100644
index 00000000..19967dcd
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Simple {@link LogNode} filter, removes everything except the message.
+ * Useful for situations like on-screen log output where you don't want a lot of metadata displayed,
+ * just easy-to-read message updates as they're happening.
+ */
+public class MessageOnlyLogFilter implements LogNode {
+
+    LogNode mNext;
+
+    /**
+     * Takes the "next" LogNode as a parameter, to simplify chaining.
+     *
+     * @param next The next LogNode in the pipeline.
+     */
+    public MessageOnlyLogFilter(LogNode next) {
+        mNext = next;
+    }
+
+    public MessageOnlyLogFilter() {
+    }
+
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        if (mNext != null) {
+            getNext().println(Log.NONE, null, msg, null);
+        }
+    }
+
+    /**
+     * Returns the next LogNode in the chain.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/ConfirmationDialogFragment.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/ConfirmationDialogFragment.java
new file mode 100644
index 00000000..7dae56ef
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/ConfirmationDialogFragment.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.permissionrequest;
+
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.support.v4.app.DialogFragment;
+import android.text.TextUtils;
+
+/**
+ * Prompts the user to confirm permission request.
+ */
+public class ConfirmationDialogFragment extends DialogFragment {
+
+    private static final String ARG_RESOURCES = "resources";
+
+    /**
+     * Creates a new instance of ConfirmationDialogFragment.
+     *
+     * @param resources The list of resources requested by PermissionRequeste.
+     * @return A new instance.
+     */
+    public static ConfirmationDialogFragment newInstance(String[] resources) {
+        ConfirmationDialogFragment fragment = new ConfirmationDialogFragment();
+        Bundle args = new Bundle();
+        args.putStringArray(ARG_RESOURCES, resources);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public Dialog onCreateDialog(Bundle savedInstanceState) {
+        String[] resources = getArguments().getStringArray(ARG_RESOURCES);
+        return new AlertDialog.Builder(getActivity())
+                .setMessage(getString(R.string.confirmation, TextUtils.join("\n", resources)))
+                .setNegativeButton(R.string.deny, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        ((Listener) getParentFragment()).onConfirmation(false);
+                    }
+                })
+                .setPositiveButton(R.string.allow, new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        ((Listener) getParentFragment()).onConfirmation(true);
+                    }
+                })
+                .create();
+    }
+
+    /**
+     * Callback for the user's response.
+     */
+    public interface Listener {
+
+        /**
+         * Called when the PermissoinRequest is allowed or denied by the user.
+         *
+         * @param allowed True if the user allowed the request.
+         */
+        public void onConfirmation(boolean allowed);
+    }
+
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/MainActivity.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/MainActivity.java
new file mode 100644
index 00000000..a11849fc
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/MainActivity.java
@@ -0,0 +1,109 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.permissionrequest;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentTransaction;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.ViewAnimator;
+
+import com.example.android.common.activities.SampleActivityBase;
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogFragment;
+import com.example.android.common.logger.LogWrapper;
+import com.example.android.common.logger.MessageOnlyLogFilter;
+
+/**
+ * A simple launcher activity containing a summary sample description, sample log and a custom
+ * {@link android.support.v4.app.Fragment} which can display a view.
+ * <p>
+ * For devices with displays with a width of 720dp or greater, the sample log is always visible,
+ * on other devices it's visibility is controlled by an item on the Action Bar.
+ */
+public class MainActivity extends SampleActivityBase {
+
+    public static final String TAG = "MainActivity";
+
+    // Whether the Log Fragment is currently shown
+    private boolean mLogShown;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        if (savedInstanceState == null) {
+            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+            PermissionRequestFragment fragment = new PermissionRequestFragment();
+            transaction.replace(R.id.sample_content_fragment, fragment);
+            transaction.commit();
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        MenuItem logToggle = menu.findItem(R.id.menu_toggle_log);
+        logToggle.setVisible(findViewById(R.id.sample_output) instanceof ViewAnimator);
+        logToggle.setTitle(mLogShown ? R.string.sample_hide_log : R.string.sample_show_log);
+
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch(item.getItemId()) {
+            case R.id.menu_toggle_log:
+                mLogShown = !mLogShown;
+                ViewAnimator output = (ViewAnimator) findViewById(R.id.sample_output);
+                if (mLogShown) {
+                    output.setDisplayedChild(1);
+                } else {
+                    output.setDisplayedChild(0);
+                }
+                supportInvalidateOptionsMenu();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    /** Create a chain of targets that will receive log data */
+    @Override
+    public void initializeLogging() {
+        // Wraps Android's native log framework.
+        LogWrapper logWrapper = new LogWrapper();
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        Log.setLogNode(logWrapper);
+
+        // Filter strips out everything except the message text.
+        MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter();
+        logWrapper.setNext(msgFilter);
+
+        // On screen logging via a fragment with a TextView.
+        LogFragment logFragment = (LogFragment) getSupportFragmentManager()
+                .findFragmentById(R.id.log_fragment);
+        msgFilter.setNext(logFragment.getLogView());
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/PermissionRequestFragment.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/PermissionRequestFragment.java
new file mode 100644
index 00000000..44f1d6ec
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/PermissionRequestFragment.java
@@ -0,0 +1,180 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.permissionrequest;
+
+import android.annotation.SuppressLint;
+import android.os.Bundle;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import android.support.v4.app.DialogFragment;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.webkit.ConsoleMessage;
+import android.webkit.PermissionRequest;
+import android.webkit.WebChromeClient;
+import android.webkit.WebSettings;
+import android.webkit.WebView;
+
+import com.example.android.common.logger.Log;
+
+/**
+ * This fragment shows a {@link WebView} and loads a web app from the {@link SimpleWebServer}.
+ */
+public class PermissionRequestFragment extends Fragment
+        implements ConfirmationDialogFragment.Listener {
+
+    private static final String TAG = PermissionRequestFragment.class.getSimpleName();
+
+    private static final String FRAGMENT_DIALOG = "dialog";
+
+    /**
+     * We use this web server to serve HTML files in the assets folder. This is because we cannot
+     * use the JavaScript method "getUserMedia" from "file:///android_assets/..." URLs.
+     */
+    private SimpleWebServer mWebServer;
+
+    /**
+     * A reference to the {@link WebView}.
+     */
+    private WebView mWebView;
+
+    /**
+     * This field stores the {@link PermissionRequest} from the web application until it is allowed
+     * or denied by user.
+     */
+    private PermissionRequest mPermissionRequest;
+
+    /**
+     * For testing.
+     */
+    private ConsoleMonitor mConsoleMonitor;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_permission_request, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
+        mWebView = (WebView) view.findViewById(R.id.web_view);
+        // Here, we use #mWebChromeClient with implementation for handling PermissionRequests.
+        mWebView.setWebChromeClient(mWebChromeClient);
+        configureWebSettings(mWebView.getSettings());
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        final int port = 8080;
+        mWebServer = new SimpleWebServer(port, getResources().getAssets());
+        mWebServer.start();
+        mWebView.loadUrl("http://localhost:" + port + "/sample.html");
+    }
+
+    @Override
+    public void onPause() {
+        mWebServer.stop();
+        super.onPause();
+    }
+
+    @SuppressLint("SetJavaScriptEnabled")
+    private static void configureWebSettings(WebSettings settings) {
+        settings.setJavaScriptEnabled(true);
+    }
+
+    /**
+     * This {@link WebChromeClient} has implementation for handling {@link PermissionRequest}.
+     */
+    private WebChromeClient mWebChromeClient = new WebChromeClient() {
+
+        // This method is called when the web content is requesting permission to access some
+        // resources.
+        @Override
+        public void onPermissionRequest(PermissionRequest request) {
+            Log.i(TAG, "onPermissionRequest");
+            mPermissionRequest = request;
+            ConfirmationDialogFragment.newInstance(request.getResources())
+                    .show(getChildFragmentManager(), FRAGMENT_DIALOG);
+        }
+
+        // This method is called when the permission request is canceled by the web content.
+        @Override
+        public void onPermissionRequestCanceled(PermissionRequest request) {
+            Log.i(TAG, "onPermissionRequestCanceled");
+            // We dismiss the prompt UI here as the request is no longer valid.
+            mPermissionRequest = null;
+            DialogFragment fragment = (DialogFragment) getChildFragmentManager()
+                    .findFragmentByTag(FRAGMENT_DIALOG);
+            if (null != fragment) {
+                fragment.dismiss();
+            }
+        }
+
+        @Override
+        public boolean onConsoleMessage(@NonNull ConsoleMessage message) {
+            switch (message.messageLevel()) {
+                case TIP:
+                    Log.v(TAG, message.message());
+                    break;
+                case LOG:
+                    Log.i(TAG, message.message());
+                    break;
+                case WARNING:
+                    Log.w(TAG, message.message());
+                    break;
+                case ERROR:
+                    Log.e(TAG, message.message());
+                    break;
+                case DEBUG:
+                    Log.d(TAG, message.message());
+                    break;
+            }
+            if (null != mConsoleMonitor) {
+                mConsoleMonitor.onConsoleMessage(message);
+            }
+            return true;
+        }
+
+    };
+
+    @Override
+    public void onConfirmation(boolean allowed) {
+        if (allowed) {
+            mPermissionRequest.grant(mPermissionRequest.getResources());
+            Log.d(TAG, "Permission granted.");
+        } else {
+            mPermissionRequest.deny();
+            Log.d(TAG, "Permission request denied.");
+        }
+        mPermissionRequest = null;
+    }
+
+    public void setConsoleMonitor(ConsoleMonitor monitor) {
+        mConsoleMonitor = monitor;
+    }
+
+    /**
+     * For testing.
+     */
+    public interface ConsoleMonitor {
+        public void onConsoleMessage(ConsoleMessage message);
+    }
+
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/SimpleWebServer.java b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/SimpleWebServer.java
new file mode 100644
index 00000000..36b7c469
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/java/com/example/android/permissionrequest/SimpleWebServer.java
@@ -0,0 +1,222 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.permissionrequest;
+
+import android.content.res.AssetManager;
+import android.text.TextUtils;
+import android.util.Log;
+
+import java.io.BufferedReader;
+import java.io.ByteArrayOutputStream;
+import java.io.FileNotFoundException;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.PrintStream;
+import java.net.ServerSocket;
+import java.net.Socket;
+import java.net.SocketException;
+
+/**
+ * Implementation of a very basic HTTP server. The contents are loaded from the assets folder. This
+ * server handles one request at a time. It only supports GET method.
+ */
+public class SimpleWebServer implements Runnable {
+
+    private static final String TAG = "SimpleWebServer";
+
+    /**
+     * The port number we listen to
+     */
+    private final int mPort;
+
+    /**
+     * {@link android.content.res.AssetManager} for loading files to serve.
+     */
+    private final AssetManager mAssets;
+
+    /**
+     * True if the server is running.
+     */
+    private boolean mIsRunning;
+
+    /**
+     * The {@link java.net.ServerSocket} that we listen to.
+     */
+    private ServerSocket mServerSocket;
+
+    /**
+     * WebServer constructor.
+     */
+    public SimpleWebServer(int port, AssetManager assets) {
+        mPort = port;
+        mAssets = assets;
+    }
+
+    /**
+     * This method starts the web server listening to the specified port.
+     */
+    public void start() {
+        mIsRunning = true;
+        new Thread(this).start();
+    }
+
+    /**
+     * This method stops the web server
+     */
+    public void stop() {
+        try {
+            mIsRunning = false;
+            if (null != mServerSocket) {
+                mServerSocket.close();
+                mServerSocket = null;
+            }
+        } catch (IOException e) {
+            Log.e(TAG, "Error closing the server socket.", e);
+        }
+    }
+
+    @Override
+    public void run() {
+        try {
+            mServerSocket = new ServerSocket(mPort);
+            while (mIsRunning) {
+                Socket socket = mServerSocket.accept();
+                handle(socket);
+                socket.close();
+            }
+        } catch (SocketException e) {
+            // The server was stopped; ignore.
+        } catch (IOException e) {
+            Log.e(TAG, "Web server error.", e);
+        }
+    }
+
+    /**
+     * Respond to a request from a client.
+     *
+     * @param socket The client socket.
+     * @throws IOException
+     */
+    private void handle(Socket socket) throws IOException {
+        BufferedReader reader = null;
+        PrintStream output = null;
+        try {
+            String route = null;
+
+            // Read HTTP headers and parse out the route.
+            reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
+            String line;
+            while (!TextUtils.isEmpty(line = reader.readLine())) {
+                if (line.startsWith("GET /")) {
+                    int start = line.indexOf('/') + 1;
+                    int end = line.indexOf(' ', start);
+                    route = line.substring(start, end);
+                    break;
+                }
+            }
+
+            // Output stream that we send the response to
+            output = new PrintStream(socket.getOutputStream());
+
+            // Prepare the content to send.
+            if (null == route) {
+                writeServerError(output);
+                return;
+            }
+            byte[] bytes = loadContent(route);
+            if (null == bytes) {
+                writeServerError(output);
+                return;
+            }
+
+            // Send out the content.
+            output.println("HTTP/1.0 200 OK");
+            output.println("Content-Type: " + detectMimeType(route));
+            output.println("Content-Length: " + bytes.length);
+            output.println();
+            output.write(bytes);
+            output.flush();
+        } finally {
+            if (null != output) {
+                output.close();
+            }
+            if (null != reader) {
+                reader.close();
+            }
+        }
+    }
+
+    /**
+     * Writes a server error response (HTTP/1.0 500) to the given output stream.
+     *
+     * @param output The output stream.
+     */
+    private void writeServerError(PrintStream output) {
+        output.println("HTTP/1.0 500 Internal Server Error");
+        output.flush();
+    }
+
+    /**
+     * Loads all the content of {@code fileName}.
+     *
+     * @param fileName The name of the file.
+     * @return The content of the file.
+     * @throws IOException
+     */
+    private byte[] loadContent(String fileName) throws IOException {
+        InputStream input = null;
+        try {
+            ByteArrayOutputStream output = new ByteArrayOutputStream();
+            input = mAssets.open(fileName);
+            byte[] buffer = new byte[1024];
+            int size;
+            while (-1 != (size = input.read(buffer))) {
+                output.write(buffer, 0, size);
+            }
+            output.flush();
+            return output.toByteArray();
+        } catch (FileNotFoundException e) {
+            return null;
+        } finally {
+            if (null != input) {
+                input.close();
+            }
+        }
+    }
+
+    /**
+     * Detects the MIME type from the {@code fileName}.
+     *
+     * @param fileName The name of the file.
+     * @return A MIME type.
+     */
+    private String detectMimeType(String fileName) {
+        if (TextUtils.isEmpty(fileName)) {
+            return null;
+        } else if (fileName.endsWith(".html")) {
+            return "text/html";
+        } else if (fileName.endsWith(".js")) {
+            return "application/javascript";
+        } else if (fileName.endsWith(".css")) {
+            return "text/css";
+        } else {
+            return "application/octet-stream";
+        }
+    }
+
+}
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 00000000..4dae25b0
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 00000000..13586288
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-hdpi/tile.9.png
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 00000000..e896d49b
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..5309f55e
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..61b137b8
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout-w720dp/activity_main.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout-w720dp/activity_main.xml
new file mode 100755
index 00000000..c9a52f62
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout-w720dp/activity_main.xml
@@ -0,0 +1,73 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="horizontal"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <LinearLayout
+          android:id="@+id/sample_output"
+          android:layout_width="0px"
+          android:layout_height="match_parent"
+          android:layout_weight="1"
+          android:orientation="vertical">
+
+        <FrameLayout
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/margin_medium"
+                  android:paddingRight="@dimen/margin_medium"
+                  android:paddingTop="@dimen/margin_large"
+                  android:paddingBottom="@dimen/margin_large"
+                  android:text="@string/intro_message" />
+        </FrameLayout>
+
+        <View
+              android:layout_width="match_parent"
+              android:layout_height="1dp"
+              android:background="@android:color/darker_gray" />
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="0px"
+              android:layout_weight="1" />
+
+    </LinearLayout>
+
+    <View
+          android:layout_width="1dp"
+          android:layout_height="match_parent"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="0px"
+          android:layout_height="match_parent" />
+
+</LinearLayout>
+
+
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout/activity_main.xml
new file mode 100755
index 00000000..1ae4f981
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,65 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="vertical"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <ViewAnimator
+          android:id="@+id/sample_output"
+          android:layout_width="match_parent"
+          android:layout_height="0px"
+          android:layout_weight="1">
+
+        <ScrollView
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/horizontal_page_margin"
+                  android:paddingRight="@dimen/horizontal_page_margin"
+                  android:paddingTop="@dimen/vertical_page_margin"
+                  android:paddingBottom="@dimen/vertical_page_margin"
+                  android:text="@string/intro_message" />
+        </ScrollView>
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent" />
+
+    </ViewAnimator>
+
+    <View
+          android:layout_width="match_parent"
+          android:layout_height="1dp"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="match_parent"
+          android:layout_height="0px" />
+
+</LinearLayout>
+
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout/fragment_permission_request.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout/fragment_permission_request.xml
new file mode 100644
index 00000000..2e97a0ae
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/layout/fragment_permission_request.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent"
+              android:orientation="vertical">
+
+    <WebView
+        android:id="@+id/web_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"/>
+
+</LinearLayout>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/menu/main.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/menu/main.xml
new file mode 100644
index 00000000..b49c2c52
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/menu/main.xml
@@ -0,0 +1,21 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_toggle_log"
+          android:showAsAction="always"
+          android:title="@string/sample_show_log" />
+</menu>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 00000000..22074a2b
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 00000000..03d19741
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 00000000..8c1ea66f
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 00000000..34c9cd13
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 00000000..0b2948f7
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 00000000..c66a246a
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="app_name">PermissionRequest</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+            
+            This sample shows how to handle PermissionRequest coming from web apps inside of a
+            WebView.
+            
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/fragmentview_strings.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/fragmentview_strings.xml
new file mode 100755
index 00000000..7b9d9ec4
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/fragmentview_strings.xml
@@ -0,0 +1,19 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<resources>
+    <string name="sample_show_log">Show Log</string>
+    <string name="sample_hide_log">Hide Log</string>
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/strings.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/strings.xml
new file mode 100644
index 00000000..c3e5574d
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/strings.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="confirmation">This web page wants to use following resources:\n\n%s</string>
+    <string name="allow">Allow</string>
+    <string name="deny">Deny</string>
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 00000000..39e710b5
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 00000000..6e7d593d
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/PermissionRequest/Application/tests/src/com/example/android/permissionrequest/test/SampleTests.java b/prebuilts/gradle/PermissionRequest/Application/tests/src/com/example/android/permissionrequest/test/SampleTests.java
new file mode 100644
index 00000000..a88589b3
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/Application/tests/src/com/example/android/permissionrequest/test/SampleTests.java
@@ -0,0 +1,196 @@
+/*
+* Copyright (C) 2014 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+package com.example.android.permissionrequest.test;
+
+import android.graphics.Rect;
+import android.os.SystemClock;
+import android.test.ActivityInstrumentationTestCase2;
+import android.view.MotionEvent;
+import android.view.View;
+import android.webkit.ConsoleMessage;
+import android.webkit.WebView;
+
+import com.example.android.permissionrequest.ConfirmationDialogFragment;
+import com.example.android.permissionrequest.MainActivity;
+import com.example.android.permissionrequest.PermissionRequestFragment;
+import com.example.android.permissionrequest.R;
+
+import java.util.concurrent.ConcurrentLinkedQueue;
+
+/**
+ * Tests for PermissionRequest sample.
+ */
+public class SampleTests extends ActivityInstrumentationTestCase2<MainActivity> {
+
+    private MainActivity mTestActivity;
+    private PermissionRequestFragment mTestFragment;
+
+    public SampleTests() {
+        super(MainActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        mTestActivity = getActivity();
+        mTestFragment = (PermissionRequestFragment)
+                mTestActivity.getSupportFragmentManager().getFragments().get(1);
+    }
+
+    /**
+     * Test if the test fixture has been set up correctly.
+     */
+    public void testPreconditions() {
+        assertNotNull("mTestActivity is null", mTestActivity);
+        assertNotNull("mTestFragment is null", mTestFragment);
+    }
+
+    public void testWebView_grantPermissionRequest() throws Throwable {
+        View view = mTestFragment.getView();
+        assertNotNull(view);
+        final WebView webView = (WebView) view.findViewById(R.id.web_view);
+        assertNotNull(webView);
+
+        final ConsoleMonitor monitor = new ConsoleMonitor();
+        mTestFragment.setConsoleMonitor(monitor);
+
+        // Click the "Start" button
+        assertTrue(monitor.waitForKeyword("Page loaded", 2000));
+        clickToggle(webView);
+
+        // Wait for the dialog
+        ConfirmationDialogFragment dialogFragment = waitForDialog();
+        assertNotNull(dialogFragment);
+
+        // Click "Allow"
+        monitor.reset();
+        clickDialogButton(dialogFragment, android.R.id.button1);
+
+        assertTrue(monitor.waitForKeyword("Started", 2000));
+
+        // Click the "Stop" button
+        monitor.reset();
+        clickToggle(webView);
+        assertTrue(monitor.waitForKeyword("Stopped", 2000));
+
+        // Click the "Start" button
+        monitor.reset();
+        clickToggle(webView);
+
+        // Wait for the dialog
+        dialogFragment = waitForDialog();
+        assertNotNull(dialogFragment);
+
+        // Click "Deny"
+        monitor.reset();
+        clickDialogButton(dialogFragment, android.R.id.button2);
+        assertTrue(monitor.waitForKeyword("Denied", 2000));
+    }
+
+    /**
+     * Click the Start/Stop button.
+     *
+     * @param webView The {@link WebView}.
+     * @throws Throwable
+     */
+    private void clickToggle(final WebView webView) throws Throwable {
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                Rect rect = new Rect();
+                webView.getHitRect(rect);
+                int x = rect.width() / 2;
+                int y = 100;
+                MotionEvent event = MotionEvent.obtain(SystemClock.uptimeMillis(),
+                        SystemClock.uptimeMillis() + 100, MotionEvent.ACTION_DOWN, x, y, 0);
+                webView.dispatchTouchEvent(event);
+                event = MotionEvent.obtain(SystemClock.uptimeMillis(),
+                        SystemClock.uptimeMillis() + 100, MotionEvent.ACTION_UP, x, y, 0);
+                webView.dispatchTouchEvent(event);
+            }
+        });
+    }
+
+    /**
+     * Wait for the dialog for 2 seconds (100 ms * 20 trials).
+     *
+     * @return The dialog.
+     * @throws InterruptedException
+     */
+    private ConfirmationDialogFragment waitForDialog() throws InterruptedException {
+        int count = 20;
+        ConfirmationDialogFragment dialog = null;
+        while (0 < count) {
+            dialog = (ConfirmationDialogFragment) mTestFragment.getChildFragmentManager()
+                    .findFragmentByTag("dialog");
+            if (null != dialog) {
+                break;
+            }
+            Thread.sleep(100);
+            --count;
+        }
+        return dialog;
+    }
+
+    /**
+     * Press the specified button on the dialog.
+     *
+     * @param dialogFragment The dialog.
+     * @param buttonId       The resource ID of the button to press.
+     * @throws Throwable
+     */
+    private void clickDialogButton(final ConfirmationDialogFragment dialogFragment,
+                                   final int buttonId) throws Throwable {
+        runTestOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                dialogFragment.getDialog().findViewById(buttonId).performClick();
+                assertFalse(dialogFragment.isVisible());
+            }
+        });
+    }
+
+    private class ConsoleMonitor implements PermissionRequestFragment.ConsoleMonitor {
+
+        private final ConcurrentLinkedQueue<String> mMessages = new ConcurrentLinkedQueue<String>();
+
+        @Override
+        public void onConsoleMessage(ConsoleMessage message) {
+            mMessages.offer(message.message());
+        }
+
+        public boolean waitForKeyword(String keyword, long timeoutMs) throws InterruptedException {
+            long time = 0;
+            while (time < timeoutMs) {
+                String message;
+                while (null != (message = mMessages.poll())) {
+                    if (message.contains(keyword)) {
+                        return true;
+                    }
+                }
+                Thread.sleep(100);
+                time += 100;
+            }
+            return false;
+        }
+
+        public void reset() {
+            mMessages.clear();
+        }
+
+    }
+
+}
diff --git a/prebuilts/gradle/PermissionRequest/CONTRIBUTING.md b/prebuilts/gradle/PermissionRequest/CONTRIBUTING.md
new file mode 100644
index 00000000..faa8b5c6
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/PermissionRequest/LICENSE b/prebuilts/gradle/PermissionRequest/LICENSE
new file mode 100644
index 00000000..1af981f5
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2014 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/prebuilts/gradle/PermissionRequest/NOTICE b/prebuilts/gradle/PermissionRequest/NOTICE
new file mode 100644
index 00000000..7eede3de
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/NOTICE
@@ -0,0 +1,15 @@
+This sample uses the following software:
+
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/prebuilts/gradle/PermissionRequest/README.md b/prebuilts/gradle/PermissionRequest/README.md
new file mode 100644
index 00000000..841159cb
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/README.md
@@ -0,0 +1,93 @@
+Android PermissionRequest Sample
+===================================
+
+This sample demonstrates how to use the PermissionRequest API to
+securely provide access to restricted system features (such as a
+camera or microphone) from within a WebView. In this example, a dialog
+is created to allow users to explicitly approve or reject each
+request.
+
+Introduction
+------------
+
+PermissionRequest can be used by setting up a custom WebChromeClient.
+
+```java
+mWebView.setWebChromeClient(mWebChromeClient);
+```
+
+In you WebChromeClient implementation, you need to override
+[onPermissionRequest][1]. This method is called when the web content
+is requesting permission to access some resources, providing an
+opportunity to approve or reject the request. In this implementation,
+we display a dialog to allow the user to approve or reject any
+request. In other applications, you may want to implement a whitelist
+of allowed APIs.  Also, override [onPermissionRequestCanceled][2] for
+handling cancellation of the PermissionRequest by the web content.
+
+When the user confirms or denies the request, you can respond back to
+the web content by [grant][3] or [deny][4] respectively.
+
+```java
+mPermissionRequest.grant(mPermissionRequest.getResources());
+```
+
+This sample provides the web content from the assets folder in the
+app. Since WebView is not allowed to use getUserMedia from a "file://"
+URL, the app uses the SimpleWebServer class to provide the content via
+"http://localhost".
+
+[1]: http://developer.android.com/reference/android/webkit/WebChromeClient.html#onPermissionRequest(android.webkit.PermissionRequest)
+[2]: http://developer.android.com/reference/android/webkit/WebChromeClient.html#onPermissionRequestCanceled(android.webkit.PermissionRequest)
+[3]: http://developer.android.com/reference/android/webkit/PermissionRequest.html#grant(java.lang.String[])
+[4]: http://developer.android.com/reference/android/webkit/PermissionRequest.html#deny()
+
+Pre-requisites
+--------------
+
+- Android SDK v21
+- Android Build Tools v21.1.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/main.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-PermissionRequest
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/PermissionRequest/build.gradle b/prebuilts/gradle/PermissionRequest/build.gradle
new file mode 100644
index 00000000..1dac6def
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/PermissionRequest/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/PermissionRequest/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..8c0fb64a
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/gradle/wrapper/gradle-wrapper.jar
diff --git a/prebuilts/gradle/PermissionRequest/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/PermissionRequest/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..4eda7c51
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Tue Dec 09 18:05:08 JST 2014
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/prebuilts/gradle/PermissionRequest/gradlew b/prebuilts/gradle/PermissionRequest/gradlew
new file mode 100755
index 00000000..91a7e269
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/PermissionRequest/gradlew.bat b/prebuilts/gradle/PermissionRequest/gradlew.bat
new file mode 100644
index 00000000..aec99730
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/PermissionRequest/screenshots/icon_web.png b/prebuilts/gradle/PermissionRequest/screenshots/icon_web.png
new file mode 100644
index 00000000..4a8c2f10
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/screenshots/icon_web.png
diff --git a/prebuilts/gradle/PermissionRequest/screenshots/image1.png b/prebuilts/gradle/PermissionRequest/screenshots/image1.png
new file mode 100644
index 00000000..9ce9fc85
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/screenshots/image1.png
diff --git a/prebuilts/gradle/PermissionRequest/screenshots/image2.png b/prebuilts/gradle/PermissionRequest/screenshots/image2.png
new file mode 100644
index 00000000..e919bd1a
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/screenshots/image2.png
diff --git a/prebuilts/gradle/PermissionRequest/settings.gradle b/prebuilts/gradle/PermissionRequest/settings.gradle
new file mode 100644
index 00000000..9464a359
--- /dev/null
+++ b/prebuilts/gradle/PermissionRequest/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/RecipeAssistant/Application/build.gradle b/prebuilts/gradle/RecipeAssistant/Application/build.gradle
index f3cacbe1..3859b3ee 100644
--- a/prebuilts/gradle/RecipeAssistant/Application/build.gradle
+++ b/prebuilts/gradle/RecipeAssistant/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/RecyclerView/Application/build.gradle b/prebuilts/gradle/RecyclerView/Application/build.gradle
index 616b2413..2dcaf29f 100644
--- a/prebuilts/gradle/RecyclerView/Application/build.gradle
+++ b/prebuilts/gradle/RecyclerView/Application/build.gradle
@@ -17,11 +17,11 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
-    compile "com.android.support:recyclerview-v7:+"
+    compile "com.android.support:recyclerview-v7:21.0.2"
 }
 
 // The sample build uses multiple directories to
diff --git a/prebuilts/gradle/RecyclerView/Application/src/main/java/com/example/android/recyclerview/RecyclerViewFragment.java b/prebuilts/gradle/RecyclerView/Application/src/main/java/com/example/android/recyclerview/RecyclerViewFragment.java
index 019657ff..1c0fdede 100644
--- a/prebuilts/gradle/RecyclerView/Application/src/main/java/com/example/android/recyclerview/RecyclerViewFragment.java
+++ b/prebuilts/gradle/RecyclerView/Application/src/main/java/com/example/android/recyclerview/RecyclerViewFragment.java
@@ -80,7 +80,7 @@ public class RecyclerViewFragment extends Fragment {
         if (savedInstanceState != null) {
             // Restore saved layout manager type.
             mCurrentLayoutManagerType = (LayoutManagerType) savedInstanceState
-                    .getSerializable(LAYOUT_MANAGER_KEY);
+                    .getSerializable(KEY_LAYOUT_MANAGER);
         }
         setRecyclerViewLayoutManager(mCurrentLayoutManagerType);
 
@@ -143,7 +143,7 @@ public class RecyclerViewFragment extends Fragment {
     @Override
     public void onSaveInstanceState(Bundle savedInstanceState) {
         // Save currently selected layout manager.
-        savedInstanceState.putSerializable(LAYOUT_MANAGER_KEY, mCurrentLayoutManagerType);
+        savedInstanceState.putSerializable(KEY_LAYOUT_MANAGER, mCurrentLayoutManagerType);
         super.onSaveInstanceState(savedInstanceState);
     }
 
diff --git a/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle b/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle
index fd0410df..7d56123c 100644
--- a/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle
+++ b/prebuilts/gradle/RenderScriptIntrinsic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
     compile files('renderscript-v8.jar')
 }
diff --git a/prebuilts/gradle/RepeatingAlarm/Application/build.gradle b/prebuilts/gradle/RepeatingAlarm/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/RepeatingAlarm/Application/build.gradle
+++ b/prebuilts/gradle/RepeatingAlarm/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/RevealEffectBasic/Application/build.gradle b/prebuilts/gradle/RevealEffectBasic/Application/build.gradle
index 20561c2a..71ddf508 100644
--- a/prebuilts/gradle/RevealEffectBasic/Application/build.gradle
+++ b/prebuilts/gradle/RevealEffectBasic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/ScreenCapture/.google/packaging.yaml b/prebuilts/gradle/ScreenCapture/.google/packaging.yaml
new file mode 100644
index 00000000..d33e2776
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/.google/packaging.yaml
@@ -0,0 +1,18 @@
+# GOOGLE SAMPLE PACKAGING DATA
+#
+# This file is used by Google as part of our samples packaging process.
+# End users may safely ignore this file. It has no relevance to other systems.
+---
+status:       PUBLISHED
+technologies: [Android]
+categories:   [Media]
+languages:    [Java]
+solutions:    [Mobile]
+github:       android-ScreenCapture
+level:        INTERMEDIATE
+icon:         screenshots/icon-web.png
+apiRefs:
+    - android:android.media.projection.MediaProjection
+    - android:android.media.projection.MediaProjectionManager
+    - android:android.hardware.display.VirtualDisplay
+license: apache2
diff --git a/prebuilts/gradle/ScreenCapture/Application/build.gradle b/prebuilts/gradle/ScreenCapture/Application/build.gradle
new file mode 100644
index 00000000..71ddf508
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/build.gradle
@@ -0,0 +1,70 @@
+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.0.0'
+    }
+}
+
+apply plugin: 'com.android.application'
+
+repositories {
+    jcenter()
+}
+
+
+dependencies {
+
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
+
+}
+
+// The sample build uses multiple directories to
+// keep boilerplate and common code separate from
+// the main sample code.
+List<String> dirs = [
+    'main',     // main sample code; look here for the interesting stuff.
+    'common',   // components that are reused by multiple samples
+    'template'] // boilerplate code that is generated by the sample template process
+
+android {
+    compileSdkVersion 21
+    buildToolsVersion "21.1.1"
+
+    defaultConfig {
+        minSdkVersion 21
+        targetSdkVersion 21
+    }
+
+    sourceSets {
+        main {
+            dirs.each { dir ->
+                java.srcDirs "src/${dir}/java"
+                res.srcDirs "src/${dir}/res"
+            }
+        }
+        androidTest.setRoot('tests')
+        androidTest.java.srcDirs = ['tests/src']
+
+    }
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/AndroidManifest.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..2dfd4f70
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.example.android.screencapture">
+
+    <application android:allowBackup="true"
+        android:label="@string/app_name"
+        android:icon="@drawable/ic_launcher"
+        android:theme="@style/AppTheme">
+
+        <activity android:name=".MainActivity"
+                  android:label="@string/app_name">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
new file mode 100644
index 00000000..3228927b
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/activities/SampleActivityBase.java
@@ -0,0 +1,52 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.common.activities;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogWrapper;
+
+/**
+ * Base launcher activity, to handle most of the common plumbing for samples.
+ */
+public class SampleActivityBase extends FragmentActivity {
+
+    public static final String TAG = "SampleActivityBase";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+    }
+
+    @Override
+    protected  void onStart() {
+        super.onStart();
+        initializeLogging();
+    }
+
+    /** Set up targets to receive log data */
+    public void initializeLogging() {
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        // Wraps Android's native log framework
+        LogWrapper logWrapper = new LogWrapper();
+        Log.setLogNode(logWrapper);
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/Log.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/Log.java
new file mode 100644
index 00000000..17503c56
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/Log.java
@@ -0,0 +1,236 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Helper class for a list (or tree) of LoggerNodes.
+ *
+ * <p>When this is set as the head of the list,
+ * an instance of it can function as a drop-in replacement for {@link android.util.Log}.
+ * Most of the methods in this class server only to map a method call in Log to its equivalent
+ * in LogNode.</p>
+ */
+public class Log {
+    // Grabbing the native values from Android's native logging facilities,
+    // to make for easy migration and interop.
+    public static final int NONE = -1;
+    public static final int VERBOSE = android.util.Log.VERBOSE;
+    public static final int DEBUG = android.util.Log.DEBUG;
+    public static final int INFO = android.util.Log.INFO;
+    public static final int WARN = android.util.Log.WARN;
+    public static final int ERROR = android.util.Log.ERROR;
+    public static final int ASSERT = android.util.Log.ASSERT;
+
+    // Stores the beginning of the LogNode topology.
+    private static LogNode mLogNode;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public static LogNode getLogNode() {
+        return mLogNode;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to.
+     */
+    public static void setLogNode(LogNode node) {
+        mLogNode = node;
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void println(int priority, String tag, String msg, Throwable tr) {
+        if (mLogNode != null) {
+            mLogNode.println(priority, tag, msg, tr);
+        }
+    }
+
+    /**
+     * Instructs the LogNode to print the log data provided. Other LogNodes can
+     * be chained to the end of the LogNode as desired.
+     *
+     * @param priority Log level of the data being logged. Verbose, Error, etc.
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     */
+    public static void println(int priority, String tag, String msg) {
+        println(priority, tag, msg, null);
+    }
+
+   /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void v(String tag, String msg, Throwable tr) {
+        println(VERBOSE, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at VERBOSE priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void v(String tag, String msg) {
+        v(tag, msg, null);
+    }
+
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void d(String tag, String msg, Throwable tr) {
+        println(DEBUG, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at DEBUG priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void d(String tag, String msg) {
+        d(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void i(String tag, String msg, Throwable tr) {
+        println(INFO, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at INFO priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void i(String tag, String msg) {
+        i(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, String msg, Throwable tr) {
+        println(WARN, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void w(String tag, String msg) {
+        w(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at WARN priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void w(String tag, Throwable tr) {
+        w(tag, null, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void e(String tag, String msg, Throwable tr) {
+        println(ERROR, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ERROR priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void e(String tag, String msg) {
+        e(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, String msg, Throwable tr) {
+        println(ASSERT, tag, msg, tr);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param msg The actual message to be logged.
+     */
+    public static void wtf(String tag, String msg) {
+        wtf(tag, msg, null);
+    }
+
+    /**
+     * Prints a message at ASSERT priority.
+     *
+     * @param tag Tag for for the log data. Can be used to organize log statements.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public static void wtf(String tag, Throwable tr) {
+        wtf(tag, null, tr);
+    }
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogFragment.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogFragment.java
new file mode 100644
index 00000000..b302acd4
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogFragment.java
@@ -0,0 +1,109 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+/*
+ * Copyright 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.common.logger;
+
+import android.graphics.Typeface;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.text.Editable;
+import android.text.TextWatcher;
+import android.view.Gravity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ScrollView;
+
+/**
+ * Simple fraggment which contains a LogView and uses is to output log data it receives
+ * through the LogNode interface.
+ */
+public class LogFragment extends Fragment {
+
+    private LogView mLogView;
+    private ScrollView mScrollView;
+
+    public LogFragment() {}
+
+    public View inflateViews() {
+        mScrollView = new ScrollView(getActivity());
+        ViewGroup.LayoutParams scrollParams = new ViewGroup.LayoutParams(
+                ViewGroup.LayoutParams.MATCH_PARENT,
+                ViewGroup.LayoutParams.MATCH_PARENT);
+        mScrollView.setLayoutParams(scrollParams);
+
+        mLogView = new LogView(getActivity());
+        ViewGroup.LayoutParams logParams = new ViewGroup.LayoutParams(scrollParams);
+        logParams.height = ViewGroup.LayoutParams.WRAP_CONTENT;
+        mLogView.setLayoutParams(logParams);
+        mLogView.setClickable(true);
+        mLogView.setFocusable(true);
+        mLogView.setTypeface(Typeface.MONOSPACE);
+
+        // Want to set padding as 16 dips, setPadding takes pixels.  Hooray math!
+        int paddingDips = 16;
+        double scale = getResources().getDisplayMetrics().density;
+        int paddingPixels = (int) ((paddingDips * (scale)) + .5);
+        mLogView.setPadding(paddingPixels, paddingPixels, paddingPixels, paddingPixels);
+        mLogView.setCompoundDrawablePadding(paddingPixels);
+
+        mLogView.setGravity(Gravity.BOTTOM);
+        mLogView.setTextAppearance(getActivity(), android.R.style.TextAppearance_Holo_Medium);
+
+        mScrollView.addView(mLogView);
+        return mScrollView;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        View result = inflateViews();
+
+        mLogView.addTextChangedListener(new TextWatcher() {
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}
+
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) {}
+
+            @Override
+            public void afterTextChanged(Editable s) {
+                mScrollView.fullScroll(ScrollView.FOCUS_DOWN);
+            }
+        });
+        return result;
+    }
+
+    public LogView getLogView() {
+        return mLogView;
+    }
+}
+\ No newline at end of file
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogNode.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogNode.java
new file mode 100644
index 00000000..bc37cabc
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogNode.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Basic interface for a logging system that can output to one or more targets.
+ * Note that in addition to classes that will output these logs in some format,
+ * one can also implement this interface over a filter and insert that in the chain,
+ * such that no targets further down see certain data, or see manipulated forms of the data.
+ * You could, for instance, write a "ToHtmlLoggerNode" that just converted all the log data
+ * it received to HTML and sent it along to the next node in the chain, without printing it
+ * anywhere.
+ */
+public interface LogNode {
+
+    /**
+     * Instructs first LogNode in the list to print the log data provided.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    public void println(int priority, String tag, String msg, Throwable tr);
+
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogView.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogView.java
new file mode 100644
index 00000000..c01542b9
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogView.java
@@ -0,0 +1,145 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.app.Activity;
+import android.content.Context;
+import android.util.*;
+import android.widget.TextView;
+
+/** Simple TextView which is used to output log data received through the LogNode interface.
+*/
+public class LogView extends TextView implements LogNode {
+
+    public LogView(Context context) {
+        super(context);
+    }
+
+    public LogView(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    public LogView(Context context, AttributeSet attrs, int defStyle) {
+        super(context, attrs, defStyle);
+    }
+
+    /**
+     * Formats the log data and prints it out to the LogView.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+
+        
+        String priorityStr = null;
+
+        // For the purposes of this View, we want to print the priority as readable text.
+        switch(priority) {
+            case android.util.Log.VERBOSE:
+                priorityStr = "VERBOSE";
+                break;
+            case android.util.Log.DEBUG:
+                priorityStr = "DEBUG";
+                break;
+            case android.util.Log.INFO:
+                priorityStr = "INFO";
+                break;
+            case android.util.Log.WARN:
+                priorityStr = "WARN";
+                break;
+            case android.util.Log.ERROR:
+                priorityStr = "ERROR";
+                break;
+            case android.util.Log.ASSERT:
+                priorityStr = "ASSERT";
+                break;
+            default:
+                break;
+        }
+
+        // Handily, the Log class has a facility for converting a stack trace into a usable string.
+        String exceptionStr = null;
+        if (tr != null) {
+            exceptionStr = android.util.Log.getStackTraceString(tr);
+        }
+
+        // Take the priority, tag, message, and exception, and concatenate as necessary
+        // into one usable line of text.
+        final StringBuilder outputBuilder = new StringBuilder();
+
+        String delimiter = "\t";
+        appendIfNotNull(outputBuilder, priorityStr, delimiter);
+        appendIfNotNull(outputBuilder, tag, delimiter);
+        appendIfNotNull(outputBuilder, msg, delimiter);
+        appendIfNotNull(outputBuilder, exceptionStr, delimiter);
+
+        // In case this was originally called from an AsyncTask or some other off-UI thread,
+        // make sure the update occurs within the UI thread.
+        ((Activity) getContext()).runOnUiThread( (new Thread(new Runnable() {
+            @Override
+            public void run() {
+                // Display the text we just generated within the LogView.
+                appendToLog(outputBuilder.toString());
+            }
+        })));
+
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /** Takes a string and adds to it, with a separator, if the bit to be added isn't null. Since
+     * the logger takes so many arguments that might be null, this method helps cut out some of the
+     * agonizing tedium of writing the same 3 lines over and over.
+     * @param source StringBuilder containing the text to append to.
+     * @param addStr The String to append
+     * @param delimiter The String to separate the source and appended strings. A tab or comma,
+     *                  for instance.
+     * @return The fully concatenated String as a StringBuilder
+     */
+    private StringBuilder appendIfNotNull(StringBuilder source, String addStr, String delimiter) {
+        if (addStr != null) {
+            if (addStr.length() == 0) {
+                delimiter = "";
+            }
+
+            return source.append(addStr).append(delimiter);
+        }
+        return source;
+    }
+
+    // The next LogNode in the chain.
+    LogNode mNext;
+
+    /** Outputs the string as a new line of log data in the LogView. */
+    public void appendToLog(String s) {
+        append("\n" + s);
+    }
+
+
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogWrapper.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
new file mode 100644
index 00000000..16a9e7ba
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/LogWrapper.java
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+import android.util.Log;
+
+/**
+ * Helper class which wraps Android's native Log utility in the Logger interface.  This way
+ * normal DDMS output can be one of the many targets receiving and outputting logs simultaneously.
+ */
+public class LogWrapper implements LogNode {
+
+    // For piping:  The next node to receive Log data after this one has done its work.
+    private LogNode mNext;
+
+    /**
+     * Returns the next LogNode in the linked list.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+    /**
+     * Prints data out to the console using Android's native log mechanism.
+     * @param priority Log level of the data being logged.  Verbose, Error, etc.
+     * @param tag Tag for for the log data.  Can be used to organize log statements.
+     * @param msg The actual message to be logged. The actual message to be logged.
+     * @param tr If an exception was thrown, this can be sent along for the logging facilities
+     *           to extract and print useful information.
+     */
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        // There actually are log methods that don't take a msg parameter.  For now,
+        // if that's the case, just convert null to the empty string and move on.
+        String useMsg = msg;
+        if (useMsg == null) {
+            useMsg = "";
+        }
+
+        // If an exeption was provided, convert that exception to a usable string and attach
+        // it to the end of the msg method.
+        if (tr != null) {
+            msg += "\n" + Log.getStackTraceString(tr);
+        }
+
+        // This is functionally identical to Log.x(tag, useMsg);
+        // For instance, if priority were Log.VERBOSE, this would be the same as Log.v(tag, useMsg)
+        Log.println(priority, tag, useMsg);
+
+        // If this isn't the last node in the chain, move things along.
+        if (mNext != null) {
+            mNext.println(priority, tag, msg, tr);
+        }
+    }
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
new file mode 100644
index 00000000..19967dcd
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/common/logger/MessageOnlyLogFilter.java
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.example.android.common.logger;
+
+/**
+ * Simple {@link LogNode} filter, removes everything except the message.
+ * Useful for situations like on-screen log output where you don't want a lot of metadata displayed,
+ * just easy-to-read message updates as they're happening.
+ */
+public class MessageOnlyLogFilter implements LogNode {
+
+    LogNode mNext;
+
+    /**
+     * Takes the "next" LogNode as a parameter, to simplify chaining.
+     *
+     * @param next The next LogNode in the pipeline.
+     */
+    public MessageOnlyLogFilter(LogNode next) {
+        mNext = next;
+    }
+
+    public MessageOnlyLogFilter() {
+    }
+
+    @Override
+    public void println(int priority, String tag, String msg, Throwable tr) {
+        if (mNext != null) {
+            getNext().println(Log.NONE, null, msg, null);
+        }
+    }
+
+    /**
+     * Returns the next LogNode in the chain.
+     */
+    public LogNode getNext() {
+        return mNext;
+    }
+
+    /**
+     * Sets the LogNode data will be sent to..
+     */
+    public void setNext(LogNode node) {
+        mNext = node;
+    }
+
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/screencapture/MainActivity.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/screencapture/MainActivity.java
new file mode 100644
index 00000000..67ae9e89
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/screencapture/MainActivity.java
@@ -0,0 +1,109 @@
+/*
+* Copyright 2013 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+package com.example.android.screencapture;
+
+import android.os.Bundle;
+import android.support.v4.app.FragmentTransaction;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.widget.ViewAnimator;
+
+import com.example.android.common.activities.SampleActivityBase;
+import com.example.android.common.logger.Log;
+import com.example.android.common.logger.LogFragment;
+import com.example.android.common.logger.LogWrapper;
+import com.example.android.common.logger.MessageOnlyLogFilter;
+
+/**
+ * A simple launcher activity containing a summary sample description, sample log and a custom
+ * {@link android.support.v4.app.Fragment} which can display a view.
+ * <p>
+ * For devices with displays with a width of 720dp or greater, the sample log is always visible,
+ * on other devices it's visibility is controlled by an item on the Action Bar.
+ */
+public class MainActivity extends SampleActivityBase {
+
+    public static final String TAG = "MainActivity";
+
+    // Whether the Log Fragment is currently shown
+    private boolean mLogShown;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        if (savedInstanceState == null) {
+            FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+            ScreenCaptureFragment fragment = new ScreenCaptureFragment();
+            transaction.replace(R.id.sample_content_fragment, fragment);
+            transaction.commit();
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main, menu);
+        return true;
+    }
+
+    @Override
+    public boolean onPrepareOptionsMenu(Menu menu) {
+        MenuItem logToggle = menu.findItem(R.id.menu_toggle_log);
+        logToggle.setVisible(findViewById(R.id.sample_output) instanceof ViewAnimator);
+        logToggle.setTitle(mLogShown ? R.string.sample_hide_log : R.string.sample_show_log);
+
+        return super.onPrepareOptionsMenu(menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch(item.getItemId()) {
+            case R.id.menu_toggle_log:
+                mLogShown = !mLogShown;
+                ViewAnimator output = (ViewAnimator) findViewById(R.id.sample_output);
+                if (mLogShown) {
+                    output.setDisplayedChild(1);
+                } else {
+                    output.setDisplayedChild(0);
+                }
+                supportInvalidateOptionsMenu();
+                return true;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    /** Create a chain of targets that will receive log data */
+    @Override
+    public void initializeLogging() {
+        // Wraps Android's native log framework.
+        LogWrapper logWrapper = new LogWrapper();
+        // Using Log, front-end to the logging chain, emulates android.util.log method signatures.
+        Log.setLogNode(logWrapper);
+
+        // Filter strips out everything except the message text.
+        MessageOnlyLogFilter msgFilter = new MessageOnlyLogFilter();
+        logWrapper.setNext(msgFilter);
+
+        // On screen logging via a fragment with a TextView.
+        LogFragment logFragment = (LogFragment) getSupportFragmentManager()
+                .findFragmentById(R.id.log_fragment);
+        msgFilter.setNext(logFragment.getLogView());
+
+        Log.i(TAG, "Ready");
+    }
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/screencapture/ScreenCaptureFragment.java b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/screencapture/ScreenCaptureFragment.java
new file mode 100644
index 00000000..f1345792
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/java/com/example/android/screencapture/ScreenCaptureFragment.java
@@ -0,0 +1,202 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.screencapture;
+
+import android.app.Activity;
+import android.content.Context;
+import android.content.Intent;
+import android.hardware.display.DisplayManager;
+import android.hardware.display.VirtualDisplay;
+import android.media.projection.MediaProjection;
+import android.media.projection.MediaProjectionManager;
+import android.os.Bundle;
+import android.support.annotation.Nullable;
+import android.support.v4.app.Fragment;
+import android.util.DisplayMetrics;
+import android.view.LayoutInflater;
+import android.view.Surface;
+import android.view.SurfaceView;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.Toast;
+
+import com.example.android.common.logger.Log;
+
+/**
+ * Provides UI for the screen capture.
+ */
+public class ScreenCaptureFragment extends Fragment implements View.OnClickListener {
+
+    private static final String TAG = "ScreenCaptureFragment";
+
+    private static final String STATE_RESULT_CODE = "result_code";
+    private static final String STATE_RESULT_DATA = "result_data";
+
+    private static final int REQUEST_MEDIA_PROJECTION = 1;
+
+    private int mScreenDensity;
+
+    private int mResultCode;
+    private Intent mResultData;
+
+    private Surface mSurface;
+    private MediaProjection mMediaProjection;
+    private VirtualDisplay mVirtualDisplay;
+    private MediaProjectionManager mMediaProjectionManager;
+    private Button mButtonToggle;
+    private SurfaceView mSurfaceView;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (savedInstanceState != null) {
+            mResultCode = savedInstanceState.getInt(STATE_RESULT_CODE);
+            mResultData = savedInstanceState.getParcelable(STATE_RESULT_DATA);
+        }
+    }
+
+    @Nullable
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_screen_capture, container, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        mSurfaceView = (SurfaceView) view.findViewById(R.id.surface);
+        mSurface = mSurfaceView.getHolder().getSurface();
+        mButtonToggle = (Button) view.findViewById(R.id.toggle);
+        mButtonToggle.setOnClickListener(this);
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        Activity activity = getActivity();
+        DisplayMetrics metrics = new DisplayMetrics();
+        activity.getWindowManager().getDefaultDisplay().getMetrics(metrics);
+        mScreenDensity = metrics.densityDpi;
+        mMediaProjectionManager = (MediaProjectionManager)
+                activity.getSystemService(Context.MEDIA_PROJECTION_SERVICE);
+    }
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        super.onSaveInstanceState(outState);
+        if (mResultData != null) {
+            outState.putInt(STATE_RESULT_CODE, mResultCode);
+            outState.putParcelable(STATE_RESULT_DATA, mResultData);
+        }
+    }
+
+    @Override
+    public void onClick(View v) {
+        switch (v.getId()) {
+            case R.id.toggle:
+                if (mVirtualDisplay == null) {
+                    startScreenCapture();
+                } else {
+                    stopScreenCapture();
+                }
+                break;
+        }
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == REQUEST_MEDIA_PROJECTION) {
+            if (resultCode != Activity.RESULT_OK) {
+                Log.i(TAG, "User cancelled");
+                Toast.makeText(getActivity(), R.string.user_cancelled, Toast.LENGTH_SHORT).show();
+                return;
+            }
+            Activity activity = getActivity();
+            if (activity == null) {
+                return;
+            }
+            Log.i(TAG, "Starting screen capture");
+            mResultCode = resultCode;
+            mResultData = data;
+            setUpMediaProjection();
+            setUpVirtualDisplay();
+        }
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+        stopScreenCapture();
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+        tearDownMediaProjection();
+    }
+
+    private void setUpMediaProjection() {
+        mMediaProjection = mMediaProjectionManager.getMediaProjection(mResultCode, mResultData);
+    }
+
+    private void tearDownMediaProjection() {
+        if (mMediaProjection != null) {
+            mMediaProjection.stop();
+            mMediaProjection = null;
+        }
+    }
+
+    private void startScreenCapture() {
+        Activity activity = getActivity();
+        if (mSurface == null || activity == null) {
+            return;
+        }
+        if (mMediaProjection != null) {
+            setUpVirtualDisplay();
+        } else if (mResultCode != 0 && mResultData != null) {
+            setUpMediaProjection();
+            setUpVirtualDisplay();
+        } else {
+            Log.i(TAG, "Requesting confirmation");
+            // This initiates a prompt dialog for the user to confirm screen projection.
+            startActivityForResult(
+                    mMediaProjectionManager.createScreenCaptureIntent(),
+                    REQUEST_MEDIA_PROJECTION);
+        }
+    }
+
+    private void setUpVirtualDisplay() {
+        Log.i(TAG, "Setting up a VirtualDisplay: " +
+                mSurfaceView.getWidth() + "x" + mSurfaceView.getHeight() +
+                " (" + mScreenDensity + ")");
+        mVirtualDisplay = mMediaProjection.createVirtualDisplay("ScreenCapture",
+                mSurfaceView.getWidth(), mSurfaceView.getHeight(), mScreenDensity,
+                DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR,
+                mSurface, null, null);
+        mButtonToggle.setText(R.string.stop);
+    }
+
+    private void stopScreenCapture() {
+        if (mVirtualDisplay == null) {
+            return;
+        }
+        mVirtualDisplay.release();
+        mVirtualDisplay = null;
+        mButtonToggle.setText(R.string.start);
+    }
+
+}
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-hdpi/ic_launcher.png b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 00000000..69d518c6
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-hdpi/tile.9.png b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-hdpi/tile.9.png
new file mode 100644
index 00000000..13586288
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-hdpi/tile.9.png
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-mdpi/ic_launcher.png b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 00000000..c107f97a
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..a4d33c2c
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..fe23a075
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout-w720dp/activity_main.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout-w720dp/activity_main.xml
new file mode 100755
index 00000000..c9a52f62
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout-w720dp/activity_main.xml
@@ -0,0 +1,73 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="horizontal"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <LinearLayout
+          android:id="@+id/sample_output"
+          android:layout_width="0px"
+          android:layout_height="match_parent"
+          android:layout_weight="1"
+          android:orientation="vertical">
+
+        <FrameLayout
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/margin_medium"
+                  android:paddingRight="@dimen/margin_medium"
+                  android:paddingTop="@dimen/margin_large"
+                  android:paddingBottom="@dimen/margin_large"
+                  android:text="@string/intro_message" />
+        </FrameLayout>
+
+        <View
+              android:layout_width="match_parent"
+              android:layout_height="1dp"
+              android:background="@android:color/darker_gray" />
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="0px"
+              android:layout_weight="1" />
+
+    </LinearLayout>
+
+    <View
+          android:layout_width="1dp"
+          android:layout_height="match_parent"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="0px"
+          android:layout_height="match_parent" />
+
+</LinearLayout>
+
+
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout/activity_main.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout/activity_main.xml
new file mode 100755
index 00000000..1ae4f981
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,65 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+<LinearLayout
+      xmlns:android="http://schemas.android.com/apk/res/android"
+      android:orientation="vertical"
+      android:layout_width="match_parent"
+      android:layout_height="match_parent"
+      android:id="@+id/sample_main_layout">
+
+    <ViewAnimator
+          android:id="@+id/sample_output"
+          android:layout_width="match_parent"
+          android:layout_height="0px"
+          android:layout_weight="1">
+
+        <ScrollView
+              style="@style/Widget.SampleMessageTile"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent">
+
+            <TextView
+                  style="@style/Widget.SampleMessage"
+                  android:layout_width="match_parent"
+                  android:layout_height="wrap_content"
+                  android:paddingLeft="@dimen/horizontal_page_margin"
+                  android:paddingRight="@dimen/horizontal_page_margin"
+                  android:paddingTop="@dimen/vertical_page_margin"
+                  android:paddingBottom="@dimen/vertical_page_margin"
+                  android:text="@string/intro_message" />
+        </ScrollView>
+
+        <fragment
+              android:name="com.example.android.common.logger.LogFragment"
+              android:id="@+id/log_fragment"
+              android:layout_width="match_parent"
+              android:layout_height="match_parent" />
+
+    </ViewAnimator>
+
+    <View
+          android:layout_width="match_parent"
+          android:layout_height="1dp"
+          android:background="@android:color/darker_gray" />
+
+    <FrameLayout
+          android:id="@+id/sample_content_fragment"
+          android:layout_weight="2"
+          android:layout_width="match_parent"
+          android:layout_height="0px" />
+
+</LinearLayout>
+
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout/fragment_screen_capture.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout/fragment_screen_capture.xml
new file mode 100644
index 00000000..343c920c
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/layout/fragment_screen_capture.xml
@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2014 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="horizontal">
+
+    <SurfaceView
+        android:id="@+id/surface"
+        android:layout_width="0dp"
+        android:layout_height="match_parent"
+        android:layout_weight="1"/>
+
+    <Button
+        android:id="@+id/toggle"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="top"
+        android:text="@string/start"/>
+
+</LinearLayout>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/menu/main.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/menu/main.xml
new file mode 100644
index 00000000..b49c2c52
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/menu/main.xml
@@ -0,0 +1,21 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_toggle_log"
+          android:showAsAction="always"
+          android:title="@string/sample_show_log" />
+</menu>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-sw600dp/template-dimens.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-sw600dp/template-dimens.xml
new file mode 100644
index 00000000..22074a2b
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-sw600dp/template-dimens.xml
@@ -0,0 +1,24 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_huge</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-sw600dp/template-styles.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-sw600dp/template-styles.xml
new file mode 100644
index 00000000..03d19741
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-sw600dp/template-styles.xml
@@ -0,0 +1,25 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceLarge</item>
+        <item name="android:lineSpacingMultiplier">1.2</item>
+        <item name="android:shadowDy">-6.5</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v11/template-styles.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v11/template-styles.xml
new file mode 100644
index 00000000..8c1ea66f
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v11/template-styles.xml
@@ -0,0 +1,22 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Holo.Light" />
+
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v21/base-colors.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v21/base-colors.xml
new file mode 100644
index 00000000..34c9cd13
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v21/base-colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v21/base-template-styles.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v21/base-template-styles.xml
new file mode 100644
index 00000000..0b2948f7
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values-v21/base-template-styles.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+
+    <!-- Activity themes -->
+    <style name="Theme.Base" parent="android:Theme.Material.Light">
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/base-strings.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/base-strings.xml
new file mode 100644
index 00000000..79880f0b
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/base-strings.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2013 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+<resources>
+    <string name="app_name">ScreenCapture</string>
+    <string name="intro_message">
+        <![CDATA[
+        
+
+This sample demonstrates how to use Media Projection API introduced in Android 5.0 Lollipop. Press
+"Start" to start capturing the screen.
+
+        
+        ]]>
+    </string>
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/fragmentview_strings.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/fragmentview_strings.xml
new file mode 100755
index 00000000..7b9d9ec4
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/fragmentview_strings.xml
@@ -0,0 +1,19 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+-->
+<resources>
+    <string name="sample_show_log">Show Log</string>
+    <string name="sample_hide_log">Hide Log</string>
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/strings.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/strings.xml
new file mode 100644
index 00000000..70597e66
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/strings.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+-->
+<resources>
+    <string name="start">Start</string>
+    <string name="stop">Stop</string>
+    <string name="user_cancelled">User denied screen sharing permission</string>
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/template-dimens.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/template-dimens.xml
new file mode 100644
index 00000000..39e710b5
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/template-dimens.xml
@@ -0,0 +1,32 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Define standard dimensions to comply with Holo-style grids and rhythm. -->
+
+    <dimen name="margin_tiny">4dp</dimen>
+    <dimen name="margin_small">8dp</dimen>
+    <dimen name="margin_medium">16dp</dimen>
+    <dimen name="margin_large">32dp</dimen>
+    <dimen name="margin_huge">64dp</dimen>
+
+    <!-- Semantic definitions -->
+
+    <dimen name="horizontal_page_margin">@dimen/margin_medium</dimen>
+    <dimen name="vertical_page_margin">@dimen/margin_medium</dimen>
+
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/template-styles.xml b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/template-styles.xml
new file mode 100644
index 00000000..6e7d593d
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/src/main/res/values/template-styles.xml
@@ -0,0 +1,42 @@
+<!--
+  Copyright 2013 The Android Open Source Project
+
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+
+      http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  -->
+
+<resources>
+
+    <!-- Activity themes -->
+
+    <style name="Theme.Base" parent="android:Theme.Light" />
+
+    <style name="Theme.Sample" parent="Theme.Base" />
+
+    <style name="AppTheme" parent="Theme.Sample" />
+    <!-- Widget styling -->
+
+    <style name="Widget" />
+
+    <style name="Widget.SampleMessage">
+        <item name="android:textAppearance">?android:textAppearanceMedium</item>
+        <item name="android:lineSpacingMultiplier">1.1</item>
+    </style>
+
+    <style name="Widget.SampleMessageTile">
+        <item name="android:background">@drawable/tile</item>
+        <item name="android:shadowColor">#7F000000</item>
+        <item name="android:shadowDy">-3.5</item>
+        <item name="android:shadowRadius">2</item>
+    </style>
+
+</resources>
diff --git a/prebuilts/gradle/ScreenCapture/Application/tests/src/com/example/android/screencapture/test/SampleTests.java b/prebuilts/gradle/ScreenCapture/Application/tests/src/com/example/android/screencapture/test/SampleTests.java
new file mode 100644
index 00000000..f3f79975
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/Application/tests/src/com/example/android/screencapture/test/SampleTests.java
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.screencapture.test;
+
+import android.test.ActivityInstrumentationTestCase2;
+import android.view.View;
+import android.widget.Button;
+
+import com.example.android.screencapture.MainActivity;
+import com.example.android.screencapture.R;
+import com.example.android.screencapture.ScreenCaptureFragment;
+
+/**
+ * Tests for ScreenCapture sample.
+ */
+public class SampleTests extends ActivityInstrumentationTestCase2<MainActivity> {
+
+    private MainActivity mTestActivity;
+    private ScreenCaptureFragment mTestFragment;
+
+    public SampleTests() {
+        super(MainActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        mTestActivity = getActivity();
+        mTestFragment = (ScreenCaptureFragment)
+                mTestActivity.getSupportFragmentManager().getFragments().get(1);
+    }
+
+    /**
+     * Test if the test fixture has been set up correctly.
+     */
+    public void testPreconditions() {
+        assertNotNull("mTestActivity is null", mTestActivity);
+        assertNotNull("mTestFragment is null", mTestFragment);
+    }
+
+    public void testButtonToggle() throws Throwable {
+        final View view = mTestFragment.getView();
+        assertNotNull(view);
+        final Button buttonToggle = (Button) view.findViewById(R.id.toggle);
+        assertNotNull(buttonToggle);
+    }
+
+}
diff --git a/prebuilts/gradle/ScreenCapture/CONTRIBUTING.md b/prebuilts/gradle/ScreenCapture/CONTRIBUTING.md
new file mode 100644
index 00000000..faa8b5c6
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/CONTRIBUTING.md
@@ -0,0 +1,35 @@
+# How to become a contributor and submit your own code
+
+## Contributor License Agreements
+
+We'd love to accept your sample apps and patches! Before we can take them, we
+have to jump a couple of legal hurdles.
+
+Please fill out either the individual or corporate Contributor License Agreement (CLA).
+
+  * If you are an individual writing original source code and you're sure you
+    own the intellectual property, then you'll need to sign an [individual CLA]
+    (https://cla.developers.google.com).
+  * If you work for a company that wants to allow you to contribute your work,
+    then you'll need to sign a [corporate CLA]
+    (https://cla.developers.google.com).
+
+Follow either of the two links above to access the appropriate CLA and
+instructions for how to sign and return it. Once we receive it, we'll be able to
+accept your pull requests.
+
+## Contributing A Patch
+
+1. Submit an issue describing your proposed change to the repo in question.
+1. The repo owner will respond to your issue promptly.
+1. If your proposed change is accepted, and you haven't already done so, sign a
+   Contributor License Agreement (see details above).
+1. Fork the desired repo, develop and test your code changes.
+1. Ensure that your code adheres to the existing style in the sample to which
+   you are contributing. Refer to the
+   [Android Code Style Guide]
+   (https://source.android.com/source/code-style.html) for the
+   recommended coding standards for this organization.
+1. Ensure that your code has an appropriate set of unit tests which all pass.
+1. Submit a pull request.
+
diff --git a/prebuilts/gradle/ScreenCapture/LICENSE b/prebuilts/gradle/ScreenCapture/LICENSE
new file mode 100644
index 00000000..1af981f5
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2014 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/prebuilts/gradle/ScreenCapture/NOTICE b/prebuilts/gradle/ScreenCapture/NOTICE
new file mode 100644
index 00000000..7eede3de
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/NOTICE
@@ -0,0 +1,15 @@
+This sample uses the following software:
+
+Copyright 2014 The Android Open Source Project
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+   http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
diff --git a/prebuilts/gradle/ScreenCapture/README.md b/prebuilts/gradle/ScreenCapture/README.md
new file mode 100644
index 00000000..ec99efd1
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/README.md
@@ -0,0 +1,73 @@
+Android ScreenCapture Sample
+===================================
+
+This sample demonstrates how to use Media Projection API to capture device screen in real time and
+show it on a SurfaceView.
+
+Introduction
+------------
+
+Media Projection API lets you capture the current screen through Surface.
+
+To start media projection, you need to get an instance of [MediaProjection][1]. For this, you have
+to call startActivityForResult with an Intent from
+[MediaProjectionManager.createScreenCaptureIntent()][2]. This shows a confirmation dialog to the
+user. When user confirms it, you will get a result code and data in onActivityResult, so pass those
+to [getMediaProjection][3].
+
+Once you get a MediaProjection, use [createVirtualDisplay][4] and bind it to a Surface.
+
+[1]: https://developer.android.com/reference/android/media/projection/MediaProjection.html
+[2]: https://developer.android.com/reference/android/media/projection/MediaProjectionManager.html#createScreenCaptureIntent()
+[3]: https://developer.android.com/reference/android/media/projection/MediaProjectionManager.html#getMediaProjection(int, android.content.Intent)
+[4]: https://developer.android.com/reference/android/media/projection/MediaProjection.html#createVirtualDisplay(java.lang.String, int, int, int, int, android.view.Surface, android.hardware.display.VirtualDisplay.Callback, android.os.Handler)
+
+Pre-requisites
+--------------
+
+- Android SDK v21
+- Android Build Tools v21.1.1
+- Android Support Repository
+
+Screenshots
+-------------
+
+<img src="screenshots/main.png" height="400" alt="Screenshot"/> 
+
+Getting Started
+---------------
+
+This sample uses the Gradle build system. To build this project, use the
+"gradlew build" command or use "Import Project" in Android Studio.
+
+Support
+-------
+
+- Google+ Community: https://plus.google.com/communities/105153134372062985968
+- Stack Overflow: http://stackoverflow.com/questions/tagged/android
+
+If you've found an error in this sample, please file an issue:
+https://github.com/googlesamples/android-ScreenCapture
+
+Patches are encouraged, and may be submitted by forking this project and
+submitting a pull request through GitHub. Please see CONTRIBUTING.md for more details.
+
+License
+-------
+
+Copyright 2014 The Android Open Source Project, Inc.
+
+Licensed to the Apache Software Foundation (ASF) under one or more contributor
+license agreements.  See the NOTICE file distributed with this work for
+additional information regarding copyright ownership.  The ASF licenses this
+file to you under the Apache License, Version 2.0 (the "License"); you may not
+use this file except in compliance with the License.  You may obtain a copy of
+the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+License for the specific language governing permissions and limitations under
+the License.
diff --git a/prebuilts/gradle/ScreenCapture/build.gradle b/prebuilts/gradle/ScreenCapture/build.gradle
new file mode 100644
index 00000000..1dac6def
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/build.gradle
@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+
diff --git a/prebuilts/gradle/ScreenCapture/gradle/wrapper/gradle-wrapper.jar b/prebuilts/gradle/ScreenCapture/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..8c0fb64a
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/gradle/wrapper/gradle-wrapper.jar
diff --git a/prebuilts/gradle/ScreenCapture/gradle/wrapper/gradle-wrapper.properties b/prebuilts/gradle/ScreenCapture/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..0c71e760
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Apr 10 15:27:10 PDT 2013
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
diff --git a/prebuilts/gradle/ScreenCapture/gradlew b/prebuilts/gradle/ScreenCapture/gradlew
new file mode 100755
index 00000000..91a7e269
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/gradlew
@@ -0,0 +1,164 @@
+#!/usr/bin/env bash
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn ( ) {
+    echo "$*"
+}
+
+die ( ) {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+esac
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched.
+if $cygwin ; then
+    [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+fi
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >&-
+APP_HOME="`pwd -P`"
+cd "$SAVED" >&-
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
+function splitJvmOpts() {
+    JVM_OPTS=("$@")
+}
+eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
+JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
+
+exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
diff --git a/prebuilts/gradle/ScreenCapture/gradlew.bat b/prebuilts/gradle/ScreenCapture/gradlew.bat
new file mode 100644
index 00000000..aec99730
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/gradlew.bat
@@ -0,0 +1,90 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windowz variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+if "%@eval[2+2]" == "4" goto 4NT_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+goto execute
+
+:4NT_args
+@rem Get arguments from the 4NT Shell from JP Software
+set CMD_LINE_ARGS=%$
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/prebuilts/gradle/ScreenCapture/screenshots/icon-web.png b/prebuilts/gradle/ScreenCapture/screenshots/icon-web.png
new file mode 100644
index 00000000..6d41a89f
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/screenshots/icon-web.png
diff --git a/prebuilts/gradle/ScreenCapture/screenshots/main.png b/prebuilts/gradle/ScreenCapture/screenshots/main.png
new file mode 100644
index 00000000..79fca656
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/screenshots/main.png
diff --git a/prebuilts/gradle/ScreenCapture/settings.gradle b/prebuilts/gradle/ScreenCapture/settings.gradle
new file mode 100644
index 00000000..9464a359
--- /dev/null
+++ b/prebuilts/gradle/ScreenCapture/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle b/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle
+++ b/prebuilts/gradle/SlidingTabsBasic/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/SlidingTabsColors/Application/build.gradle b/prebuilts/gradle/SlidingTabsColors/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/SlidingTabsColors/Application/build.gradle
+++ b/prebuilts/gradle/SlidingTabsColors/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/StorageClient/Application/build.gradle b/prebuilts/gradle/StorageClient/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/StorageClient/Application/build.gradle
+++ b/prebuilts/gradle/StorageClient/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/StorageProvider/Application/build.gradle b/prebuilts/gradle/StorageProvider/Application/build.gradle
index bfed04fa..c6b8c26a 100644
--- a/prebuilts/gradle/StorageProvider/Application/build.gradle
+++ b/prebuilts/gradle/StorageProvider/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:support-v13:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:support-v13:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle b/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle
index 544e46b8..18c0d15c 100644
--- a/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle
+++ b/prebuilts/gradle/SwipeRefreshLayoutBasic/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle b/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle
index 544e46b8..18c0d15c 100644
--- a/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle
+++ b/prebuilts/gradle/SwipeRefreshListFragment/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle b/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle
index 544e46b8..18c0d15c 100644
--- a/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle
+++ b/prebuilts/gradle/SwipeRefreshMultipleViews/Application/build.gradle
@@ -17,9 +17,9 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
-    compile "com.android.support:gridlayout-v7:21.+"
-    compile "com.android.support:cardview-v7:21.+"
+    compile "com.android.support:support-v4:21.0.2"
+    compile "com.android.support:gridlayout-v7:21.0.2"
+    compile "com.android.support:cardview-v7:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/SynchronizedNotifications/.google/packaging.yaml b/prebuilts/gradle/SynchronizedNotifications/.google/packaging.yaml
index bfa7a3c6..a930c527 100644
--- a/prebuilts/gradle/SynchronizedNotifications/.google/packaging.yaml
+++ b/prebuilts/gradle/SynchronizedNotifications/.google/packaging.yaml
@@ -9,4 +9,10 @@ categories:   [Wearable]
 languages:    [Java]
 solutions:    [Mobile]
 github:       android-SynchronizedNotifications
+level:        INTERMEDIATE
+icon:         screenshots/web-icon.png
+apiRefs:
+    - android:com.google.android.gms.wearable.DataApi
+    - android:com.google.android.gms.wearable.Wearable
+    - android:com.google.android.gms.wearable.WearableListenerService
 license: apache2
diff --git a/prebuilts/gradle/SynchronizedNotifications/README.md b/prebuilts/gradle/SynchronizedNotifications/README.md
index 98b20529..66cded4f 100644
--- a/prebuilts/gradle/SynchronizedNotifications/README.md
+++ b/prebuilts/gradle/SynchronizedNotifications/README.md
@@ -1,8 +1,51 @@
 Android SynchronizedNotifications Sample
 ===================================
 
-This sample creates simple or synchronized notifications on a
-device and an Android Wear watch.
+A basic sample showing how to use simple or synchronized notifications.
+This allows users to dismiss events from either their phone or wearable device simultaneously.
+
+Introduction
+------------
+
+The [DataAPI][1] exposes an API for components to read or write data items and assets between
+the handhelds and wearables. A [DataItem][2] is synchronized across all devices in an Android Wear network.
+It is possible to set data items while not connected to any nodes. Those data items will be synchronized
+when the nodes eventually come online.
+
+This example presents three buttons that would trigger three different combinations of
+notifications on the handset and the watch:
+
+1. The first button builds a simple local-only notification on the handset.
+2. The second one creates a wearable-only notification by putting a data item in the shared data
+store and having a [com.google.android.gms.wearable.WearableListenerService][3] listen for
+that on the wearable.
+3. The third one creates a local notification and a wearable notification by combining the above
+two. It, however, demonstrates how one can set things up so that the dismissal of one
+notification results in the dismissal of the other one.
+
+In the #2 and #3 items, the following code is used to synchronize the data between the handheld
+and the wearable devices using DataAPI.
+
+```java
+PutDataMapRequest putDataMapRequest = PutDataMapRequest.create(path);
+putDataMapRequest.getDataMap().putString(Constants.KEY_CONTENT, content);
+putDataMapRequest.getDataMap().putString(Constants.KEY_TITLE, title);
+PutDataRequest request = putDataMapRequest.asPutDataRequest();
+Wearable.DataApi.putDataItem(mGoogleApiClient, request)
+        .setResultCallback(new ResultCallback<DataApi.DataItemResult>() {
+            @Override
+            public void onResult(DataApi.DataItemResult dataItemResult) {
+                if (!dataItemResult.getStatus().isSuccess()) {
+                    Log.e(TAG, "buildWatchOnlyNotification(): Failed to set the data, "
+                            + "status: " + dataItemResult.getStatus().getStatusCode());
+                }
+            }
+        });
+```
+
+[1]: http://developer.android.com/reference/com/google/android/gms/wearable/DataApi.html#putDataItem(com.google.android.gms.common.api.GoogleApiClient%2C%20com.google.android.gms.wearable.PutDataRequest)
+[2]: http://developer.android.com/reference/com/google/android/gms/wearable/DataItem.html
+[3]: https://developer.android.com/reference/com/google/android/gms/wearable/WearableListenerService.html
 
 Pre-requisites
 --------------
@@ -11,6 +54,11 @@ Pre-requisites
 - Android Build Tools v21.1.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/different_notifications_phone.png" height="400" alt="Screenshot"/> <img src="screenshots/different_notifications_wearable.png" height="400" alt="Screenshot"/> <img src="screenshots/notification_options.png" height="400" alt="Screenshot"/> <img src="screenshots/watch_only_notification.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
diff --git a/prebuilts/gradle/SynchronizedNotifications/screenshots/web-icon.png b/prebuilts/gradle/SynchronizedNotifications/screenshots/web-icon.png
new file mode 100755
index 00000000..2f5f7093
--- /dev/null
+++ b/prebuilts/gradle/SynchronizedNotifications/screenshots/web-icon.png
diff --git a/prebuilts/gradle/TextLinkify/Application/build.gradle b/prebuilts/gradle/TextLinkify/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/TextLinkify/Application/build.gradle
+++ b/prebuilts/gradle/TextLinkify/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/TextSwitcher/Application/build.gradle b/prebuilts/gradle/TextSwitcher/Application/build.gradle
index 05020be5..76169dee 100644
--- a/prebuilts/gradle/TextSwitcher/Application/build.gradle
+++ b/prebuilts/gradle/TextSwitcher/Application/build.gradle
@@ -17,7 +17,7 @@ repositories {
 
 dependencies {
 
-    compile "com.android.support:support-v4:21.+"
+    compile "com.android.support:support-v4:21.0.2"
 
 }
 
diff --git a/prebuilts/gradle/WatchFace/Wearable/src/main/AndroidManifest.xml b/prebuilts/gradle/WatchFace/Wearable/src/main/AndroidManifest.xml
index ee906b76..5d4f208f 100644
--- a/prebuilts/gradle/WatchFace/Wearable/src/main/AndroidManifest.xml
+++ b/prebuilts/gradle/WatchFace/Wearable/src/main/AndroidManifest.xml
@@ -47,7 +47,7 @@
                     android:name="com.google.android.wearable.watchface.preview"
                     android:resource="@drawable/preview_analog" />
             <meta-data
-                    android:name="com.google.android.clockwork.home.preview_circular"
+                    android:name="com.google.android.wearable.watchface.preview_circular"
                     android:resource="@drawable/preview_analog_circular" />
             <meta-data
                     android:name="com.google.android.wearable.watchface.companionConfigurationAction"
@@ -71,7 +71,7 @@
                     android:name="com.google.android.wearable.watchface.preview"
                     android:resource="@drawable/preview_analog" />
             <meta-data
-                    android:name="com.google.android.clockwork.home.preview_circular"
+                    android:name="com.google.android.wearable.watchface.preview_circular"
                     android:resource="@drawable/preview_analog_circular" />
             <intent-filter>
                 <action android:name="android.service.wallpaper.WallpaperService" />
@@ -92,7 +92,7 @@
                     android:name="com.google.android.wearable.watchface.preview"
                     android:resource="@drawable/preview_tilt" />
             <meta-data
-                    android:name="com.google.android.clockwork.home.preview_circular"
+                    android:name="com.google.android.wearable.watchface.preview_circular"
                     android:resource="@drawable/preview_tilt_circular" />
             <meta-data
                     android:name="com.google.android.wearable.watchface.companionConfigurationAction"
@@ -117,7 +117,7 @@
                     android:name="com.google.android.wearable.watchface.preview"
                     android:resource="@drawable/preview_card_bounds" />
             <meta-data
-                    android:name="com.google.android.clockwork.home.preview_circular"
+                    android:name="com.google.android.wearable.watchface.preview_circular"
                     android:resource="@drawable/preview_card_bounds_circular" />
             <meta-data
                     android:name="com.google.android.wearable.watchface.companionConfigurationAction"
@@ -141,7 +141,7 @@
                     android:name="com.google.android.wearable.watchface.preview"
                     android:resource="@drawable/preview_digital" />
             <meta-data
-                    android:name="com.google.android.clockwork.home.preview_circular"
+                    android:name="com.google.android.wearable.watchface.preview_circular"
                     android:resource="@drawable/preview_digital_circular" />
             <meta-data
                     android:name="com.google.android.wearable.watchface.companionConfigurationAction"
@@ -182,7 +182,7 @@
                     android:name="com.google.android.wearable.watchface.preview"
                     android:resource="@drawable/preview_calendar" />
             <meta-data
-                    android:name="com.google.android.clockwork.home.preview_circular"
+                    android:name="com.google.android.wearable.watchface.preview_circular"
                     android:resource="@drawable/preview_calendar_circular" />
             <intent-filter>
                 <action android:name="android.service.wallpaper.WallpaperService" />
author	Trevor Johns <trevorjohns@google.com>	2014-12-11 14:22:56 -0800
committer	Trevor Johns <trevorjohns@google.com>	2014-12-11 15:30:20 -0800
commit	f4852427259f175605844f385f0be2eb2ae0e5ec (patch)
tree	8b5f06594a3c6de514c475786347ecbcd318d905 /prebuilts/gradle
parent	5073d44d2b933234d20338d1daaabbc3e9c60d65 (diff)
download	build-f4852427259f175605844f385f0be2eb2ae0e5ec.tar.gz