New BLE Advertisements Sample

Change-Id: I144987adf2739d0fbc68ad87380518680eedfa6e

31 files changed, 1346 insertions, 0 deletions

diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/.gitignore b/connectivity/bluetooth/BluetoothAdvertisements/Application/.gitignore
new file mode 100644
index 00000000..6eb878d4
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/.gitignore
@@ -0,0 +1,16 @@
+# 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.
+src/template/
+src/common/
+build.gradle
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/proguard-project.txt b/connectivity/bluetooth/BluetoothAdvertisements/Application/proguard-project.txt
new file mode 100644
index 00000000..0d8f171d
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/proguard-project.txt
@@ -0,0 +1,20 @@
+ To enable ProGuard in your project, edit project.properties
+# to define the proguard.config property as described in that file.
+#
+# Add project specific ProGuard rules here.
+# By default, the flags in this file are appended to flags specified
+# in ${sdk.dir}/tools/proguard/proguard-android.txt
+# You can edit the include path and order by changing the ProGuard
+# include property in project.properties.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# Add any project specific keep options here:
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/AndroidManifest.xml b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..48084fc9
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,39 @@
+<?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.bluetoothadvertisements"
+    android:versionCode="1"
+    android:versionName="1.0">
+
+    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
+    <uses-permission android:name="android.permission.BLUETOOTH"/>
+
+    <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/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/AdvertiserFragment.java b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/AdvertiserFragment.java
new file mode 100644
index 00000000..f8daefb0
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/AdvertiserFragment.java
@@ -0,0 +1,190 @@
+package com.example.android.bluetoothadvertisements;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.le.AdvertiseCallback;
+import android.bluetooth.le.AdvertiseData;
+import android.bluetooth.le.AdvertiseSettings;
+import android.bluetooth.le.BluetoothLeAdvertiser;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Switch;
+import android.widget.Toast;
+
+/**
+ * Allows user to start & stop Bluetooth LE Advertising of their device.
+ */
+public class AdvertiserFragment extends Fragment {
+
+    private BluetoothAdapter mBluetoothAdapter;
+
+    private BluetoothLeAdvertiser mBluetoothLeAdvertiser;
+
+    private AdvertiseCallback mAdvertiseCallback;
+
+    private Switch mSwitch;
+
+    /**
+     * Must be called after object creation by MainActivity.
+     *
+     * @param btAdapter the local BluetoothAdapter
+     */
+    public void setBluetoothAdapter(BluetoothAdapter btAdapter) {
+        this.mBluetoothAdapter = btAdapter;
+        mBluetoothLeAdvertiser = mBluetoothAdapter.getBluetoothLeAdvertiser();
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setRetainInstance(true);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+
+        View view = inflater.inflate(R.layout.fragment_advertiser, container, false);
+
+        mSwitch = (Switch) view.findViewById(R.id.advertise_switch);
+        mSwitch.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                onSwitchClicked(v);
+            }
+        });
+
+        return view;
+    }
+
+    @Override
+    public void onStop() {
+        super.onStop();
+
+        if(mAdvertiseCallback != null){
+            stopAdvertising();
+        }
+    }
+
+    /**
+     * Called when switch is toggled - starts or stops advertising.
+     *
+     * @param view is the Switch View object
+     */
+    public void onSwitchClicked(View view) {
+
+        // Is the toggle on?
+        boolean on = ((Switch) view).isChecked();
+
+        if (on) {
+            startAdvertising();
+        } else {
+            stopAdvertising();
+        }
+    }
+
+    /**
+     * Starts BLE Advertising.
+     */
+    private void startAdvertising() {
+
+        mAdvertiseCallback = new SampleAdvertiseCallback();
+
+        if (mBluetoothLeAdvertiser != null) {
+            mBluetoothLeAdvertiser.startAdvertising(buildAdvertiseSettings(), buildAdvertiseData(),
+                    mAdvertiseCallback);
+        } else {
+            mSwitch.setChecked(false);
+            Toast.makeText(getActivity(), getString(R.string.bt_null), Toast.LENGTH_LONG).show();
+        }
+    }
+
+    /**
+     * Stops BLE Advertising.
+     */
+    private void stopAdvertising() {
+
+        if (mBluetoothLeAdvertiser != null) {
+
+            mBluetoothLeAdvertiser.stopAdvertising(mAdvertiseCallback);
+            mAdvertiseCallback = null;
+
+        } else {
+            mSwitch.setChecked(false);
+            Toast.makeText(getActivity(), getString(R.string.bt_null), Toast.LENGTH_LONG).show();
+        }
+    }
+
+    /**
+     * Returns an AdvertiseData object which includes the Service UUID and Device Name.
+     */
+    private AdvertiseData buildAdvertiseData() {
+
+        // Note: There is a strict limit of 31 Bytes on packets sent over BLE Advertisements.
+        // This includes everything put into AdvertiseData including UUIDs, device info, &
+        // arbitrary service or manufacturer data.
+        // Attempting to send packets over this limit will result in a failure with error code
+        // AdvertiseCallback.ADVERTISE_FAILED_DATA_TOO_LARGE. Catch this error in the
+        // onStartFailure() method of an AdvertiseCallback implementation.
+
+        AdvertiseData.Builder dataBuilder = new AdvertiseData.Builder();
+        dataBuilder.addServiceUuid(Constants.Service_UUID);
+        dataBuilder.setIncludeDeviceName(true);
+
+        return dataBuilder.build();
+    }
+
+    /**
+     * Returns an AdvertiseSettings object set to use low power (to help preserve battery life).
+     */
+    private AdvertiseSettings buildAdvertiseSettings() {
+        AdvertiseSettings.Builder settingsBuilder = new AdvertiseSettings.Builder();
+        settingsBuilder.setAdvertiseMode(AdvertiseSettings.ADVERTISE_MODE_LOW_POWER);
+
+        return settingsBuilder.build();
+    }
+
+    /**
+     * Custom callback after Advertising succeeds or fails to start.
+     */
+    private class SampleAdvertiseCallback extends AdvertiseCallback {
+
+        @Override
+        public void onStartFailure(int errorCode) {
+            super.onStartFailure(errorCode);
+
+            mSwitch.setChecked(false);
+
+            String errorMessage = getString(R.string.start_error_prefix);
+            switch (errorCode) {
+                case AdvertiseCallback.ADVERTISE_FAILED_ALREADY_STARTED:
+                    errorMessage += " " + getString(R.string.start_error_already_started);
+                    break;
+                case AdvertiseCallback.ADVERTISE_FAILED_DATA_TOO_LARGE:
+                    errorMessage += " " + getString(R.string.start_error_too_large);
+                    break;
+                case AdvertiseCallback.ADVERTISE_FAILED_FEATURE_UNSUPPORTED:
+                    errorMessage += " " + getString(R.string.start_error_unsupported);
+                    break;
+                case AdvertiseCallback.ADVERTISE_FAILED_INTERNAL_ERROR:
+                    errorMessage += " " + getString(R.string.start_error_internal);
+                    break;
+                case AdvertiseCallback.ADVERTISE_FAILED_TOO_MANY_ADVERTISERS:
+                    errorMessage += " " + getString(R.string.start_error_too_many);
+                    break;
+            }
+
+            Toast.makeText(getActivity(), errorMessage, Toast.LENGTH_LONG).show();
+
+        }
+
+        @Override
+        public void onStartSuccess(AdvertiseSettings settingsInEffect) {
+            super.onStartSuccess(settingsInEffect);
+            // Don't need to do anything here, advertising successfully started.
+        }
+    }
+
+}
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/Constants.java b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/Constants.java
new file mode 100644
index 00000000..d3941e2a
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/Constants.java
@@ -0,0 +1,22 @@
+package com.example.android.bluetoothadvertisements;
+
+import android.os.ParcelUuid;
+
+/**
+ * Constants for use in the Bluetooth Advertisements sample
+ */
+public class Constants {
+
+    /**
+     * UUID identified with this app - set as Service UUID for BLE Advertisements.
+     *
+     * Bluetooth requires a certain format for UUIDs associated with Services.
+     * The official specification can be found here:
+     * {@link https://www.bluetooth.org/en-us/specification/assigned-numbers/service-discovery}
+     */
+    public static final ParcelUuid Service_UUID = ParcelUuid
+            .fromString("0000b81d-0000-1000-8000-00805f9b34fb");
+
+    public static final int REQUEST_ENABLE_BT = 1;
+
+}
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/MainActivity.java b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/MainActivity.java
new file mode 100644
index 00000000..f0044a3e
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/MainActivity.java
@@ -0,0 +1,130 @@
+/*
+* 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.bluetoothadvertisements;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v4.app.FragmentActivity;
+import android.support.v4.app.FragmentTransaction;
+import android.widget.TextView;
+import android.widget.Toast;
+
+/**
+ * Setup display fragments and ensure the device supports Bluetooth.
+ */
+public class MainActivity extends FragmentActivity {
+
+    private BluetoothAdapter mBluetoothAdapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+        setTitle(R.string.activity_main_title);
+
+        if (savedInstanceState == null ) {
+
+            mBluetoothAdapter = ((BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE))
+                    .getAdapter();
+
+            // Is Bluetooth supported on this device?
+            if (mBluetoothAdapter != null) {
+
+                // Is Bluetooth turned on?
+                if (mBluetoothAdapter.isEnabled()) {
+
+                    // Are Bluetooth Advertisements supported on this device?
+                    if (mBluetoothAdapter.isMultipleAdvertisementSupported()) {
+
+                        // Everything is supported and enabled, load the fragments.
+                        setupFragments();
+
+                    } else {
+
+                        // Bluetooth Advertisements are not supported.
+                        showErrorText(R.string.bt_ads_not_supported);
+                    }
+                } else {
+
+                    // Prompt user to turn on Bluetooth (logic continues in onActivityResult()).
+                    Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
+                    startActivityForResult(enableBtIntent, Constants.REQUEST_ENABLE_BT);
+                }
+            } else {
+
+                // Bluetooth is not supported.
+                showErrorText(R.string.bt_not_supported);
+            }
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        switch (requestCode) {
+            case Constants.REQUEST_ENABLE_BT:
+
+                if (resultCode == RESULT_OK) {
+
+                    // Bluetooth is now Enabled, are Bluetooth Advertisements supported on
+                    // this device?
+                    if (mBluetoothAdapter.isMultipleAdvertisementSupported()) {
+
+                        // Everything is supported and enabled, load the fragments.
+                        setupFragments();
+
+                    } else {
+
+                        // Bluetooth Advertisements are not supported.
+                        showErrorText(R.string.bt_ads_not_supported);
+                    }
+                } else {
+
+                    // User declined to enable Bluetooth, exit the app.
+                    Toast.makeText(this, R.string.bt_not_enabled_leaving,
+                            Toast.LENGTH_SHORT).show();
+                    finish();
+                }
+
+            default:
+                super.onActivityResult(requestCode, resultCode, data);
+        }
+    }
+
+    private void setupFragments() {
+        FragmentTransaction transaction = getSupportFragmentManager().beginTransaction();
+
+        ScannerFragment scannerFragment = new ScannerFragment();
+        scannerFragment.setBluetoothAdapter(mBluetoothAdapter);
+        transaction.replace(R.id.scanner_fragment_container, scannerFragment);
+
+        AdvertiserFragment advertiserFragment = new AdvertiserFragment();
+        advertiserFragment.setBluetoothAdapter(mBluetoothAdapter);
+        transaction.replace(R.id.advertiser_fragment_container, advertiserFragment);
+
+        transaction.commit();
+    }
+
+    private void showErrorText(int messageId) {
+
+        TextView view = (TextView) findViewById(R.id.error_textview);
+        view.setText(getString(messageId));
+    }
+}
\ No newline at end of file
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/ScanResultAdapter.java b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/ScanResultAdapter.java
new file mode 100644
index 00000000..0f905ea7
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/ScanResultAdapter.java
@@ -0,0 +1,147 @@
+package com.example.android.bluetoothadvertisements;
+
+import android.bluetooth.le.ScanResult;
+import android.content.Context;
+import android.os.SystemClock;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * Holds and displays {@link ScanResult}s, used by {@link ScannerFragment}.
+ */
+public class ScanResultAdapter extends BaseAdapter {
+
+    private ArrayList<ScanResult> mArrayList;
+
+    private Context mContext;
+
+    private LayoutInflater mInflater;
+
+    ScanResultAdapter(Context context, LayoutInflater inflater) {
+        super();
+        mContext = context;
+        mInflater = inflater;
+        mArrayList = new ArrayList<>();
+    }
+
+    @Override
+    public int getCount() {
+        return mArrayList.size();
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return mArrayList.get(position);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return mArrayList.get(position).getDevice().getAddress().hashCode();
+    }
+
+    @Override
+    public View getView(int position, View view, ViewGroup parent) {
+
+        // Reuse an old view if we can, otherwise create a new one.
+        if (view == null) {
+            view = mInflater.inflate(R.layout.listitem_scanresult, null);
+        }
+
+        TextView deviceNameView = (TextView) view.findViewById(R.id.device_name);
+        TextView deviceAddressView = (TextView) view.findViewById(R.id.device_address);
+        TextView lastSeenView = (TextView) view.findViewById(R.id.last_seen);
+
+        ScanResult scanResult = mArrayList.get(position);
+
+        deviceNameView.setText(scanResult.getDevice().getName());
+        deviceAddressView.setText(scanResult.getDevice().getAddress());
+        lastSeenView.setText(getTimeSinceString(mContext, scanResult.getTimestampNanos()));
+
+        return view;
+    }
+
+    /**
+     * Search the adapter for an existing device address and return it, otherwise return -1.
+     */
+    private int getPosition(String address) {
+        int position = -1;
+        for (int i = 0; i < mArrayList.size(); i++) {
+            if (mArrayList.get(i).getDevice().getAddress().equals(address)) {
+                position = i;
+                break;
+            }
+        }
+        return position;
+    }
+
+
+    /**
+     * Add a ScanResult item to the adapter if a result from that device isn't already present.
+     * Otherwise updates the existing position with the new ScanResult.
+     */
+    public void add(ScanResult scanResult) {
+
+        int existingPosition = getPosition(scanResult.getDevice().getAddress());
+
+        if (existingPosition >= 0) {
+            // Device is already in list, update its record.
+            mArrayList.set(existingPosition, scanResult);
+        } else {
+            // Add new Device's ScanResult to list.
+            mArrayList.add(scanResult);
+        }
+    }
+
+    /**
+     * Clear out the adapter.
+     */
+    public void clear() {
+        mArrayList.clear();
+    }
+
+    /**
+     * Takes in a number of nanoseconds and returns a human-readable string giving a vague
+     * description of how long ago that was.
+     */
+    public static String getTimeSinceString(Context context, long timeNanoseconds) {
+        String lastSeenText = context.getResources().getString(R.string.last_seen) + " ";
+
+        long timeSince = SystemClock.elapsedRealtimeNanos() - timeNanoseconds;
+        long secondsSince = TimeUnit.SECONDS.convert(timeSince, TimeUnit.NANOSECONDS);
+
+        if (secondsSince < 5) {
+            lastSeenText += context.getResources().getString(R.string.just_now);
+        } else if (secondsSince < 60) {
+            lastSeenText += secondsSince + " " + context.getResources()
+                    .getString(R.string.seconds_ago);
+        } else {
+            long minutesSince = TimeUnit.MINUTES.convert(secondsSince, TimeUnit.SECONDS);
+            if (minutesSince < 60) {
+                if (minutesSince == 1) {
+                    lastSeenText += minutesSince + " " + context.getResources()
+                            .getString(R.string.minute_ago);
+                } else {
+                    lastSeenText += minutesSince + " " + context.getResources()
+                            .getString(R.string.minutes_ago);
+                }
+            } else {
+                long hoursSince = TimeUnit.HOURS.convert(minutesSince, TimeUnit.MINUTES);
+                if (hoursSince == 1) {
+                    lastSeenText += hoursSince + " " + context.getResources()
+                            .getString(R.string.hour_ago);
+                } else {
+                    lastSeenText += hoursSince + " " + context.getResources()
+                            .getString(R.string.hours_ago);
+                }
+            }
+        }
+
+        return lastSeenText;
+    }
+}
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/ScannerFragment.java b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/ScannerFragment.java
new file mode 100644
index 00000000..b9ad4d96
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/java/com/example/android/bluetoothadvertisements/ScannerFragment.java
@@ -0,0 +1,212 @@
+package com.example.android.bluetoothadvertisements;
+
+import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.le.BluetoothLeScanner;
+import android.bluetooth.le.ScanCallback;
+import android.bluetooth.le.ScanFilter;
+import android.bluetooth.le.ScanResult;
+import android.bluetooth.le.ScanSettings;
+import android.os.Bundle;
+import android.os.Handler;
+import android.support.v4.app.ListFragment;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Toast;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+
+/**
+ * Scans for Bluetooth Low Energy Advertisements matching a filter and displays them to the user.
+ */
+public class ScannerFragment extends ListFragment {
+
+    private static final String TAG = ScannerFragment.class.getSimpleName();
+
+    /**
+     * Stops scanning after 5 seconds.
+     */
+    private static final long SCAN_PERIOD = 5000;
+
+    private BluetoothAdapter mBluetoothAdapter;
+
+    private BluetoothLeScanner mBluetoothLeScanner;
+
+    private ScanCallback mScanCallback;
+
+    private ScanResultAdapter mAdapter;
+
+    private Handler mHandler;
+
+    /**
+     * Must be called after object creation by MainActivity.
+     *
+     * @param btAdapter the local BluetoothAdapter
+     */
+    public void setBluetoothAdapter(BluetoothAdapter btAdapter) {
+        this.mBluetoothAdapter = btAdapter;
+        mBluetoothLeScanner = mBluetoothAdapter.getBluetoothLeScanner();
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setHasOptionsMenu(true);
+        setRetainInstance(true);
+
+        // Use getActivity().getApplicationContext() instead of just getActivity() because this
+        // object lives in a fragment and needs to be kept separate from the Activity lifecycle.
+        //
+        // We could get a LayoutInflater from the ApplicationContext but it messes with the
+        // default theme, so generate it from getActivity() and pass it in separately.
+        mAdapter = new ScanResultAdapter(getActivity().getApplicationContext(),
+                                                    LayoutInflater.from(getActivity()));
+        mHandler = new Handler();
+
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+
+        final View view = super.onCreateView(inflater, container, savedInstanceState);
+
+        setListAdapter(mAdapter);
+
+        return view;
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        getListView().setDivider(null);
+        getListView().setDividerHeight(0);
+
+        setEmptyText(getString(R.string.empty_list));
+
+        // Trigger refresh on app's 1st load
+        startScanning();
+
+    }
+
+    @Override
+    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+        super.onCreateOptionsMenu(menu, inflater);
+        inflater.inflate(R.menu.scanner_menu, menu);
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+
+        switch (item.getItemId()) {
+            case R.id.refresh:
+                startScanning();
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
+
+    /**
+     * Start scanning for BLE Advertisements (& set it up to stop after a set period of time).
+     */
+    public void startScanning() {
+        if (mScanCallback == null) {
+            Log.d(TAG, "Starting Scanning");
+
+            // Will stop the scanning after a set time.
+            mHandler.postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    stopScanning();
+                }
+            }, SCAN_PERIOD);
+
+            // Kick off a new scan.
+            mScanCallback = new SampleScanCallback();
+            mBluetoothLeScanner.startScan(buildScanFilters(), buildScanSettings(), mScanCallback);
+
+            String toastText = getString(R.string.scan_start_toast) + " "
+                    + TimeUnit.SECONDS.convert(SCAN_PERIOD, TimeUnit.MILLISECONDS) + " "
+                    + getString(R.string.seconds);
+            Toast.makeText(getActivity(), toastText, Toast.LENGTH_LONG).show();
+        } else {
+            Toast.makeText(getActivity(), R.string.already_scanning, Toast.LENGTH_SHORT);
+        }
+    }
+
+    /**
+     * Stop scanning for BLE Advertisements.
+     */
+    public void stopScanning() {
+        Log.d(TAG, "Stopping Scanning");
+
+        // Stop the scan, wipe the callback.
+        mBluetoothLeScanner.stopScan(mScanCallback);
+        mScanCallback = null;
+
+        // Even if no new results, update 'last seen' times.
+        mAdapter.notifyDataSetChanged();
+    }
+
+    /**
+     * Return a List of {@link ScanFilter} objects to filter by Service UUID.
+     */
+    private List<ScanFilter> buildScanFilters() {
+        List<ScanFilter> scanFilters = new ArrayList<>();
+
+        ScanFilter.Builder builder = new ScanFilter.Builder();
+        builder.setServiceUuid(Constants.Service_UUID);
+        scanFilters.add(builder.build());
+
+        return scanFilters;
+    }
+
+    /**
+     * Return a {@link ScanSettings} object set to use low power (to preserve battery life).
+     */
+    private ScanSettings buildScanSettings() {
+        ScanSettings.Builder builder = new ScanSettings.Builder();
+        builder.setScanMode(ScanSettings.SCAN_MODE_LOW_POWER);
+        return builder.build();
+    }
+
+    /**
+     * Custom ScanCallback object - adds to adapter on success, displays error on failure.
+     */
+    private class SampleScanCallback extends ScanCallback {
+
+        @Override
+        public void onBatchScanResults(List<ScanResult> results) {
+            super.onBatchScanResults(results);
+
+            for (ScanResult result : results) {
+                mAdapter.add(result);
+            }
+            mAdapter.notifyDataSetChanged();
+        }
+
+        @Override
+        public void onScanResult(int callbackType, ScanResult result) {
+            super.onScanResult(callbackType, result);
+
+            mAdapter.add(result);
+            mAdapter.notifyDataSetChanged();
+        }
+
+        @Override
+        public void onScanFailed(int errorCode) {
+            super.onScanFailed(errorCode);
+            Toast.makeText(getActivity(), "Scan failed with error: " + errorCode, Toast.LENGTH_LONG)
+                    .show();
+        }
+    }
+}
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-hdpi/ic_action_refresh.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-hdpi/ic_action_refresh.png
new file mode 100644
index 00000000..dae27903
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-hdpi/ic_action_refresh.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-hdpi/ic_launcher.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-hdpi/ic_launcher.png
new file mode 100644
index 00000000..b1efaf4b
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-hdpi/ic_launcher.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-mdpi/ic_action_refresh.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-mdpi/ic_action_refresh.png
new file mode 100644
index 00000000..94ab6f4c
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-mdpi/ic_action_refresh.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-mdpi/ic_launcher.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-mdpi/ic_launcher.png
new file mode 100644
index 00000000..f5f9244f
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-mdpi/ic_launcher.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xhdpi/ic_action_refresh.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xhdpi/ic_action_refresh.png
new file mode 100644
index 00000000..ab4ab9da
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xhdpi/ic_action_refresh.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xhdpi/ic_launcher.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..5d07b3f0
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xhdpi/ic_launcher.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xxhdpi/ic_action_refresh.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xxhdpi/ic_action_refresh.png
new file mode 100644
index 00000000..44ee117e
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xxhdpi/ic_action_refresh.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xxhdpi/ic_launcher.png b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..6ef21e1f
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/drawable-xxhdpi/ic_launcher.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/activity_main.xml b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/activity_main.xml
new file mode 100755
index 00000000..817cccc4
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/activity_main.xml
@@ -0,0 +1,55 @@
+<?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.
+  -->
+<LinearLayout
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        android:orientation="vertical"
+        android:layout_width="fill_parent"
+        android:layout_height="fill_parent"
+        android:id="@+id/sample_main_layout">
+
+    <FrameLayout
+        android:id="@+id/scanner_fragment_container"
+        android:layout_weight="1"
+        android:layout_width="match_parent"
+        android:layout_height="0px" >
+
+            <TextView
+                android:id="@+id/error_textview"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:freezesText="true" />
+
+        </FrameLayout>
+
+    <FrameLayout
+        android:id="@+id/advertiser_fragment_container"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+    <!--<fragment-->
+        <!--android:name="com.example.android.bluetoothadvertisements.ScannerFragment"-->
+        <!--android:id="@+id/scanner_fragment"-->
+        <!--android:layout_width="match_parent"-->
+        <!--android:layout_height="wrap_content" />-->
+
+    <!--<fragment-->
+        <!--android:name="com.example.android.bluetoothadvertisements.AdvertiserFragment"-->
+        <!--android:id="@+id/advertiser_fragment"-->
+        <!--android:layout_width="match_parent"-->
+        <!--android:layout_height="wrap_content" />-->
+
+</LinearLayout>
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/fragment_advertiser.xml b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/fragment_advertiser.xml
new file mode 100644
index 00000000..4031b8d7
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/fragment_advertiser.xml
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    tools:context="com.example.android.bluetoothadvertisements.AdvertiserFragment">
+
+    <!-- Horizontal Divider -->
+    <View
+        android:layout_width="250dp"
+        android:layout_height="1dp"
+        android:layout_centerHorizontal="true"
+        android:layout_alignParentTop="true"
+        android:background="@android:color/darker_gray"/>
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal"
+        android:layout_centerInParent="true"
+        android:paddingTop="20dp"
+        android:paddingBottom="20dp" >
+
+        <TextView
+            android:text="@string/broadcast_device"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:minWidth="100dp"
+            android:padding="5dp"/>
+
+        <Switch
+            android:id="@+id/advertise_switch"
+            android:layout_width="wrap_content"
+            android:layout_height="match_parent"
+            android:switchMinWidth="80dp" />
+
+    </LinearLayout>
+
+</RelativeLayout>
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/listitem_scanresult.xml b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/listitem_scanresult.xml
new file mode 100644
index 00000000..ff5956fb
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/layout/listitem_scanresult.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- 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.
+-->
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    >
+
+<LinearLayout
+              android:orientation="vertical"
+              android:layout_width="match_parent"
+              android:layout_height="wrap_content"
+              android:paddingTop="20dp"
+            android:paddingLeft="100dp"
+            android:paddingRight="100dp">
+    <TextView android:id="@+id/device_name"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textSize="16dp"/>
+
+    <TextView android:id="@+id/device_address"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:textSize="12dp"/>
+    <TextView android:id="@+id/last_seen"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="12dp"/>
+</LinearLayout>
+</RelativeLayout>
\ No newline at end of file
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/menu-v21/scanner_menu.xml b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/menu-v21/scanner_menu.xml
new file mode 100644
index 00000000..8dda284c
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/menu-v21/scanner_menu.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/refresh"
+        android:title="@string/refresh"
+        android:showAsAction="always"
+        android:icon="@drawable/ic_action_refresh"
+         />
+</menu>
\ No newline at end of file
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/values/strings.xml b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/values/strings.xml
new file mode 100644
index 00000000..0ea9c833
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/Application/src/main/res/values/strings.xml
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="bt_not_enabled_leaving">User declined to enable Bluetooth, exiting Bluetooth Advertisements.</string>
+    <string name="activity_main_title">Nearby Devices</string>
+    <string name="broadcast_device">Broadcast Device</string>
+
+    <string name="bt_not_supported">Bluetooth is not supported on this device.</string>
+    <string name="bt_ads_not_supported">Bluetooth Advertisements are not supported on this device.</string>
+
+    <string name="refresh">Refresh</string>
+    <string name="start_error_prefix">Start Advertising failed: </string>
+    <string name="start_error_already_started">already started.</string>
+    <string name="start_error_too_large">data packet exceeded 31 Byte limit.</string>
+    <string name="start_error_unsupported">not supported on this device.</string>
+    <string name="start_error_internal">internal error.</string>
+    <string name="start_error_too_many">too many advertisers.</string>
+    <string name="bt_null">Error: Bluetooth object null</string>
+    <string name="last_seen">Last Seen:</string>
+    <string name="just_now">just now</string>
+    <string name="minute_ago">minute ago</string>
+    <string name="hour_ago">hour ago</string>
+    <string name="seconds_ago">seconds ago</string>
+    <string name="minutes_ago">minutes ago</string>
+    <string name="hours_ago">hours ago</string>
+    <string name="empty_list">No devices found - refresh to try again.</string>
+    <string name="seconds">seconds.</string>
+    <string name="scan_start_toast">Scanning for</string>
+
+</resources>
\ No newline at end of file
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/build.gradle b/connectivity/bluetooth/BluetoothAdvertisements/build.gradle
new file mode 100644
index 00000000..18f393f9
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/build.gradle
@@ -0,0 +1,11 @@
+
+// BEGIN_EXCLUDE
+import com.example.android.samples.build.SampleGenPlugin
+apply plugin: SampleGenPlugin
+
+samplegen {
+  pathToBuild "../../../../../build"
+  pathToSamplesCommon "../../../common"
+}
+apply from: "../../../../../build/build.gradle"
+// END_EXCLUDE
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/buildSrc/build.gradle b/connectivity/bluetooth/BluetoothAdvertisements/buildSrc/build.gradle
new file mode 100644
index 00000000..7cebf71c
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/buildSrc/build.gradle
@@ -0,0 +1,15 @@
+repositories {
+    mavenCentral()
+}
+dependencies {
+    compile 'org.freemarker:freemarker:2.3.20'
+}
+
+sourceSets {
+    main {
+        groovy {
+            srcDir new File(rootDir, "../../../../../../build/buildSrc/src/main/groovy")
+        }
+    }
+}
+
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/gradle/wrapper/gradle-wrapper.jar b/connectivity/bluetooth/BluetoothAdvertisements/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..8c0fb64a
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/gradle/wrapper/gradle-wrapper.jar
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/gradle/wrapper/gradle-wrapper.properties b/connectivity/bluetooth/BluetoothAdvertisements/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..8712eac8
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Mon Mar 02 15:22:07 PST 2015
+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/connectivity/bluetooth/BluetoothAdvertisements/gradlew b/connectivity/bluetooth/BluetoothAdvertisements/gradlew
new file mode 100755
index 00000000..91a7e269
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/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/connectivity/bluetooth/BluetoothAdvertisements/gradlew.bat b/connectivity/bluetooth/BluetoothAdvertisements/gradlew.bat
new file mode 100644
index 00000000..aec99730
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/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/connectivity/bluetooth/BluetoothAdvertisements/screenshots/1-main.png b/connectivity/bluetooth/BluetoothAdvertisements/screenshots/1-main.png
new file mode 100644
index 00000000..0c537fa2
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/screenshots/1-main.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/screenshots/icon-web.png b/connectivity/bluetooth/BluetoothAdvertisements/screenshots/icon-web.png
new file mode 100644
index 00000000..0a6d413a
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/screenshots/icon-web.png
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/settings.gradle b/connectivity/bluetooth/BluetoothAdvertisements/settings.gradle
new file mode 100644
index 00000000..9464a359
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/settings.gradle
@@ -0,0 +1 @@
+include 'Application'
diff --git a/connectivity/bluetooth/BluetoothAdvertisements/template-params.xml b/connectivity/bluetooth/BluetoothAdvertisements/template-params.xml
new file mode 100644
index 00000000..4bd4f2a0
--- /dev/null
+++ b/connectivity/bluetooth/BluetoothAdvertisements/template-params.xml
@@ -0,0 +1,97 @@
+<?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.
+-->
+<sample>
+    <name>BluetoothAdvertisements</name>
+    <group>Connectivity</group>
+    <package>com.example.android.bluetoothadvertisements</package>
+
+    <minSdk>21</minSdk>
+
+
+    <strings>
+        <intro>
+<![CDATA[
+This samples demonstrates how to use the Bluetooth Low Power Advertisements API
+with a single device acting as both scanner and advertiser.
+]]>
+        </intro>
+    </strings>
+
+    <colors>
+        <color>
+            <name>colorPrimary</name>
+            <hexval>#434AB3</hexval>
+        </color>
+        <color>
+            <name>colorPrimaryDark</name>
+            <hexval>#34379D</hexval>
+        </color>
+        <color>
+            <name>textColorPrimary</name>
+            <hexval>#FFFFFF</hexval>
+        </color>
+    </colors>
+
+    <template src="base" />
+
+
+    <metadata>
+        <status>DRAFT</status>
+        <categories>Connectivity</categories>
+        <technologies>Android</technologies>
+        <languages>Java</languages>
+        <solutions>Mobile</solutions>
+        <level>ADVANCED</level>
+        <icon>screenshots/icon-web.png</icon>
+        <screenshots>
+            <img>screenshots/1-main.png</img>
+        </screenshots>
+        <api_refs>
+            <android>android.bluetooth.le.BluetoothLeAdvertiser</android>
+            <android>android.bluetooth.le.BluetoothLeScanner</android>
+        </api_refs>
+
+        <description>
+<![CDATA[
+Sample demonstrating how to advertise small amounts of data using the Bluetooth
+Low Energy API. Also demonstrates how to scan for those Advertisements. (requires
+2 devices to see full operation)
+]]>
+        </description>
+
+        <intro>
+<![CDATA[
+This sample demonstrates use of the Bluetooth Low Energy (BLE) [Advertisement][1] and [Scanning][2] APIs.
+The functionality is split into two fragments - one for Advertising, one for Scanning.
+
+ScannerFragment activates BLE Scanning for 5 seconds and displays a list of found devices which are advertising
+using this sample. It shows the device type, Bluetooth address, and when it was last seen. User can
+refresh to scan again and update the list.
+
+AdvertiserFragment allows the user to toggle BLE Advertising of that device. It broadcasts basic
+information about the device along with a UUID specific to this app so the ScannerFragment on other
+devices can filter by it.
+
+Note: A device cannot detect its own BLE advertisements. You will need two devices to see this
+sample in action.
+
+[1]:https://developer.android.com/reference/android/bluetooth/le/BluetoothLeAdvertiser.html
+[2]:https://developer.android.com/reference/android/bluetooth/le/BluetoothLeScanner.html
+]]>
+        </intro>
+    </metadata>
+</sample>