MidiSynth: Add a new sample

Bug: 21693466
Change-Id: Ib6a7c0802e46e2f5feefa0b31b94dea5cad367d7
(cherry picked from commit b8f8c1d198d7ed3434289625668bad296de4794b)

27 files changed, 877 insertions, 0 deletions

diff --git a/media/MidiSynth/Application/.gitignore b/media/MidiSynth/Application/.gitignore
new file mode 100644
index 00000000..6eb878d4
--- /dev/null
+++ b/media/MidiSynth/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/media/MidiSynth/Application/proguard-project.txt b/media/MidiSynth/Application/proguard-project.txt
new file mode 100644
index 00000000..f2fe1559
--- /dev/null
+++ b/media/MidiSynth/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/media/MidiSynth/Application/src/androidTest/java/com/example/android/midisynth/test/SampleTests.java b/media/MidiSynth/Application/src/androidTest/java/com/example/android/midisynth/test/SampleTests.java
new file mode 100644
index 00000000..3d5d7a78
--- /dev/null
+++ b/media/MidiSynth/Application/src/androidTest/java/com/example/android/midisynth/test/SampleTests.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2015 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.midisynth.test;
+
+import com.example.android.midisynth.*;
+
+import android.test.ActivityInstrumentationTestCase2;
+
+/**
+ * Tests for MidiSynth sample.
+ */
+public class SampleTests extends ActivityInstrumentationTestCase2<MainActivity> {
+
+    private MainActivity mTestActivity;
+
+    public SampleTests() {
+        super(MainActivity.class);
+    }
+
+    @Override
+    protected void setUp() throws Exception {
+        super.setUp();
+        mTestActivity = getActivity();
+    }
+
+    /**
+    * Test if the test fixture has been set up correctly.
+    */
+    public void testPreconditions() {
+        assertNotNull("mTestActivity is null", mTestActivity);
+    }
+
+    /**
+    * Add more tests below.
+    */
+
+}
diff --git a/media/MidiSynth/Application/src/main/AndroidManifest.xml b/media/MidiSynth/Application/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..10024192
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/AndroidManifest.xml
@@ -0,0 +1,55 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2015 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 package="com.example.android.midisynth"
+          xmlns:android="http://schemas.android.com/apk/res/android"
+          android:versionCode="1"
+          android:versionName="1.0">
+
+    <uses-feature
+        android:name="android.software.midi"
+        android:required="true"/>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:theme="@style/MidiSynthTheme">
+
+        <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>
+
+        <service
+            android:name=".MidiSynthDeviceService"
+            android:permission="android.permission.BIND_MIDI_DEVICE_SERVICE">
+            <intent-filter>
+                <action android:name="android.media.midi.MidiDeviceService"/>
+            </intent-filter>
+            <meta-data
+                android:name="android.media.midi.MidiDeviceService"
+                android:resource="@xml/synth_device_info"/>
+        </service>
+
+    </application>
+
+</manifest>
diff --git a/media/MidiSynth/Application/src/main/java/com/example/android/midisynth/MainActivity.java b/media/MidiSynth/Application/src/main/java/com/example/android/midisynth/MainActivity.java
new file mode 100644
index 00000000..92964b48
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/java/com/example/android/midisynth/MainActivity.java
@@ -0,0 +1,135 @@
+/*
+ * Copyright (C) 2015 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.midisynth;
+
+import android.app.ActionBar;
+import android.app.Activity;
+import android.content.pm.PackageManager;
+import android.media.midi.MidiDevice.MidiConnection;
+import android.media.midi.MidiDeviceInfo;
+import android.media.midi.MidiManager;
+import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuItem;
+import android.view.WindowManager;
+import android.widget.Toast;
+import android.widget.Toolbar;
+
+import com.example.android.common.midi.MidiOutputPortConnectionSelector;
+import com.example.android.common.midi.MidiPortConnector;
+import com.example.android.common.midi.MidiTools;
+
+/**
+ * Simple synthesizer as a MIDI Device.
+ */
+public class MainActivity extends Activity {
+    static final String TAG = "MidiSynthExample";
+
+    private MidiManager mMidiManager;
+    private MidiOutputPortConnectionSelector mPortSelector;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.main);
+        setActionBar((Toolbar) findViewById(R.id.toolbar));
+        ActionBar actionBar = getActionBar();
+        if (actionBar != null) {
+            actionBar.setDisplayShowTitleEnabled(false);
+        }
+
+        if (getPackageManager().hasSystemFeature(PackageManager.FEATURE_MIDI)) {
+            setupMidi();
+        }
+    }
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        getMenuInflater().inflate(R.menu.main, menu);
+        setKeepScreenOn(menu.findItem(R.id.action_keep_screen_on).isChecked());
+        return true;
+    }
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.action_keep_screen_on:
+                boolean checked = !item.isChecked();
+                setKeepScreenOn(checked);
+                item.setChecked(checked);
+                break;
+        }
+        return super.onOptionsItemSelected(item);
+    }
+
+    private void setKeepScreenOn(boolean keepScreenOn) {
+        if (keepScreenOn) {
+            getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        } else {
+            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
+        }
+    }
+
+    private void setupMidi() {
+        // Setup MIDI
+        mMidiManager = (MidiManager) getSystemService(MIDI_SERVICE);
+
+        MidiDeviceInfo synthInfo = MidiTools.findDevice(mMidiManager, "AndroidTest",
+                "SynthExample");
+        int portIndex = 0;
+        mPortSelector = new MidiOutputPortConnectionSelector(mMidiManager, this,
+                R.id.spinner_synth_sender, synthInfo, portIndex);
+        mPortSelector.setConnectedListener(new MyPortsConnectedListener());
+    }
+
+    private void closeSynthResources() {
+        if (mPortSelector != null) {
+            mPortSelector.close();
+        }
+    }
+
+    // TODO A better way would be to listen to the synth server
+    // for open/close events and then disable/enable the spinner.
+    private class MyPortsConnectedListener
+            implements MidiPortConnector.OnPortsConnectedListener {
+        @Override
+        public void onPortsConnected(final MidiConnection connection) {
+            runOnUiThread(new Runnable() {
+                @Override
+                public void run() {
+                    if (connection == null) {
+                        Toast.makeText(MainActivity.this,
+                                R.string.error_port_busy, Toast.LENGTH_SHORT)
+                                .show();
+                        mPortSelector.clearSelection();
+                    } else {
+                        Toast.makeText(MainActivity.this,
+                                R.string.port_open_ok, Toast.LENGTH_SHORT)
+                                .show();
+                    }
+                }
+            });
+        }
+    }
+
+    @Override
+    public void onDestroy() {
+        closeSynthResources();
+        super.onDestroy();
+    }
+
+}
diff --git a/media/MidiSynth/Application/src/main/java/com/example/android/midisynth/MidiSynthDeviceService.java b/media/MidiSynth/Application/src/main/java/com/example/android/midisynth/MidiSynthDeviceService.java
new file mode 100644
index 00000000..b9f25eeb
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/java/com/example/android/midisynth/MidiSynthDeviceService.java
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2015 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.midisynth;
+
+import android.media.midi.MidiDeviceService;
+import android.media.midi.MidiDeviceStatus;
+import android.media.midi.MidiReceiver;
+
+import com.example.android.common.midi.synth.SynthEngine;
+
+public class MidiSynthDeviceService extends MidiDeviceService {
+
+    private static final String TAG = MainActivity.TAG;
+    private SynthEngine mSynthEngine = new SynthEngine();
+    private boolean mSynthStarted = false;
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+    }
+
+    @Override
+    public void onDestroy() {
+        mSynthEngine.stop();
+        super.onDestroy();
+    }
+
+    @Override
+    public MidiReceiver[] onGetInputPortReceivers() {
+        return new MidiReceiver[]{mSynthEngine};
+    }
+
+    /**
+     * This will get called when clients connect or disconnect.
+     */
+    @Override
+    public void onDeviceStatusChanged(MidiDeviceStatus status) {
+        if (status.isInputPortOpen(0) && !mSynthStarted) {
+            mSynthEngine.start();
+            mSynthStarted = true;
+        } else if (!status.isInputPortOpen(0) && mSynthStarted) {
+            mSynthEngine.stop();
+            mSynthStarted = false;
+        }
+    }
+
+}
diff --git a/media/MidiSynth/Application/src/main/res/layout/main.xml b/media/MidiSynth/Application/src/main/res/layout/main.xml
new file mode 100644
index 00000000..6b9e2c7b
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/layout/main.xml
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2015 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">
+
+    <Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="?android:attr/colorPrimary"
+        android:elevation="4dp"
+        android:minHeight="?android:attr/actionBarSize"
+        android:popupTheme="@android:style/ThemeOverlay.Material.Light"
+        android:theme="@android:style/ThemeOverlay.Material.Dark.ActionBar">
+
+        <Spinner
+            android:id="@+id/spinner_synth_sender"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:entries="@array/senders"
+            android:popupTheme="@android:style/ThemeOverlay.Material.Light" />
+
+    </Toolbar>
+
+    <TextView
+        android:id="@+id/message"
+        style="@android:style/TextAppearance.Medium"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1"
+        android:paddingBottom="8dp"
+        android:paddingEnd="16dp"
+        android:paddingStart="16dp"
+        android:paddingTop="8dp"
+        android:text="@string/synth_sender_text" />
+
+</LinearLayout>
diff --git a/media/MidiSynth/Application/src/main/res/menu/main.xml b/media/MidiSynth/Application/src/main/res/menu/main.xml
new file mode 100644
index 00000000..33093f0a
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/menu/main.xml
@@ -0,0 +1,25 @@
+<!--
+ Copyright 2015 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/action_keep_screen_on"
+        android:checkable="true"
+        android:checked="true"
+        android:showAsAction="never"
+        android:title="@string/keep_screen_on"/>
+
+</menu>
diff --git a/media/MidiSynth/Application/src/main/res/mipmap-hdpi/ic_launcher.png b/media/MidiSynth/Application/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 00000000..38250e7f
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/mipmap-hdpi/ic_launcher.png
diff --git a/media/MidiSynth/Application/src/main/res/mipmap-mdpi/ic_launcher.png b/media/MidiSynth/Application/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 00000000..58c0025b
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/mipmap-mdpi/ic_launcher.png
diff --git a/media/MidiSynth/Application/src/main/res/mipmap-xhdpi/ic_launcher.png b/media/MidiSynth/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..36948553
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/mipmap-xhdpi/ic_launcher.png
diff --git a/media/MidiSynth/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png b/media/MidiSynth/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..fb50ad15
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/mipmap-xxhdpi/ic_launcher.png
diff --git a/media/MidiSynth/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/media/MidiSynth/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 00000000..801bf9c1
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/mipmap-xxxhdpi/ic_launcher.png
diff --git a/media/MidiSynth/Application/src/main/res/values/colors.xml b/media/MidiSynth/Application/src/main/res/values/colors.xml
new file mode 100644
index 00000000..4d2204f9
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/values/colors.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2015 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>
+    <color name="primary">#4CAF50</color>
+    <color name="primary_dark">#388E3C</color>
+    <color name="primary_light">#C8E6C9</color>
+    <color name="accent">#FFEB3B</color>
+    <color name="primary_text">#212121</color>
+    <color name="secondary_text">#727272</color>
+    <color name="icons">#FFFFFF</color>
+    <color name="divider">#B6B6B6</color>
+</resources>
diff --git a/media/MidiSynth/Application/src/main/res/values/strings.xml b/media/MidiSynth/Application/src/main/res/values/strings.xml
new file mode 100644
index 00000000..76a8fa26
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/values/strings.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2015 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="synth_sender_text">Select Sender for Synth</string>
+    <string name="error_port_busy">Selected port is in use or unavailable.</string>
+    <string name="port_open_ok">Port opened OK.</string>
+    <string-array name="senders">
+        <item>"none"</item>
+    </string-array>
+    <string name="keep_screen_on">Keep screen on</string>
+</resources>
diff --git a/media/MidiSynth/Application/src/main/res/values/styles.xml b/media/MidiSynth/Application/src/main/res/values/styles.xml
new file mode 100644
index 00000000..30d64556
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/values/styles.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2015 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="MidiSynthTheme" parent="android:Theme.Material.Light.NoActionBar">
+        <item name="android:colorPrimary">@color/primary</item>
+        <item name="android:colorPrimaryDark">@color/primary_dark</item>
+        <item name="android:colorAccent">@color/accent</item>
+    </style>
+
+</resources>
diff --git a/media/MidiSynth/Application/src/main/res/xml/synth_device_info.xml b/media/MidiSynth/Application/src/main/res/xml/synth_device_info.xml
new file mode 100644
index 00000000..405e87e1
--- /dev/null
+++ b/media/MidiSynth/Application/src/main/res/xml/synth_device_info.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ Copyright 2015 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.
+-->
+<devices>
+    <device manufacturer="AndroidTest" product="SynthExample">
+        <input-port name="input" />
+    </device>
+</devices>
diff --git a/media/MidiSynth/build.gradle b/media/MidiSynth/build.gradle
new file mode 100644
index 00000000..9b6a9ce4
--- /dev/null
+++ b/media/MidiSynth/build.gradle
@@ -0,0 +1,12 @@
+
+
+// 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/media/MidiSynth/buildSrc/build.gradle b/media/MidiSynth/buildSrc/build.gradle
new file mode 100644
index 00000000..d77115d0
--- /dev/null
+++ b/media/MidiSynth/buildSrc/build.gradle
@@ -0,0 +1,16 @@
+
+repositories {
+    jcenter()
+}
+dependencies {
+    compile 'org.freemarker:freemarker:2.3.20'
+}
+
+sourceSets {
+    main {
+        groovy {
+            srcDir new File(rootDir, "../../../../../build/buildSrc/src/main/groovy")
+        }
+    }
+}
+
diff --git a/media/MidiSynth/gradle/wrapper/gradle-wrapper.jar b/media/MidiSynth/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..8c0fb64a
--- /dev/null
+++ b/media/MidiSynth/gradle/wrapper/gradle-wrapper.jar
diff --git a/media/MidiSynth/gradle/wrapper/gradle-wrapper.properties b/media/MidiSynth/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..afb32963
--- /dev/null
+++ b/media/MidiSynth/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=http\://services.gradle.org/distributions/gradle-2.2.1-bin.zip
diff --git a/media/MidiSynth/gradlew b/media/MidiSynth/gradlew
new file mode 100755
index 00000000..91a7e269
--- /dev/null
+++ b/media/MidiSynth/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/media/MidiSynth/gradlew.bat b/media/MidiSynth/gradlew.bat
new file mode 100644
index 00000000..aec99730
--- /dev/null
+++ b/media/MidiSynth/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/media/MidiSynth/screenshots/1-main.png b/media/MidiSynth/screenshots/1-main.png
new file mode 100644
index 00000000..43a4f804
--- /dev/null
+++ b/media/MidiSynth/screenshots/1-main.png
diff --git a/media/MidiSynth/screenshots/icon-web.png b/media/MidiSynth/screenshots/icon-web.png
new file mode 100644
index 00000000..dfd5a518
--- /dev/null
+++ b/media/MidiSynth/screenshots/icon-web.png
diff --git a/media/MidiSynth/settings.gradle b/media/MidiSynth/settings.gradle
new file mode 100644
index 00000000..0a5c310b
--- /dev/null
+++ b/media/MidiSynth/settings.gradle
@@ -0,0 +1,2 @@
+
+include 'Application'
diff --git a/media/MidiSynth/template-params.xml b/media/MidiSynth/template-params.xml
new file mode 100644
index 00000000..7e35471b
--- /dev/null
+++ b/media/MidiSynth/template-params.xml
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+ Copyright 2015 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>MidiSynth</name>
+    <group>Media</group>
+    <package>com.example.android.midisynth</package>
+
+    <minSdk>23</minSdk>
+    <targetSdkVersion>23</targetSdkVersion>
+    <compileSdkVersion>23</compileSdkVersion>
+    <strings>
+        <intro>
+            <![CDATA[
+This sample demonstrates how to use the MIDI API to receive and play MIDI signals coming from an
+attached input device.
+            ]]>
+        </intro>
+    </strings>
+
+    <common src="midi" />
+    <template src="base" />
+
+    <metadata>
+        <status>PUBLISHED</status>
+        <categories>Media</categories>
+        <technologies>Android</technologies>
+        <languages>Java</languages>
+        <solutions>Mobile</solutions>
+        <level>INTERMEDIATE</level>
+        <icon>screenshots/icon-web.png</icon>
+        <screenshots>
+            <img>screenshots/1-main.png</img>
+        </screenshots>
+        <api_refs>
+            <android>android.media.midi.MidiManager</android>
+            <android>android.media.midi.MidiReceiver</android>
+        </api_refs>
+        <description>
+            <![CDATA[
+Sample demonstrating how to use the MIDI API to receive and play MIDI signals coming from an
+attached input device (MIDI keyboard).
+	    ]]>
+        </description>
+
+        <!-- Multi-paragraph introduction to sample, from an educational point-of-view.
+        Makrdown formatting allowed. This will be used to generate a mini-article for the
+        sample on DAC. -->
+        <intro>
+            <![CDATA[
+The Android MIDI API ([android.media.midi][1]) allows developers to connect a MIDI device to Android
+and process MIDI signals coming from it. This sample demonstrates some basic features of the MIDI
+API, such as enumeration of currently available devices (Information includes name, vendor,
+capabilities, etc), notification when MIDI devices are plugged in or unplugged, and receiving MIDI
+signals. This sample contains a simple implementation of oscillator and play sound for incoming MIDI
+signals.
+[1]: https://developer.android.com/reference/android/media/midi/package-summary.html
+	    ]]>
+        </intro>
+    </metadata>
+</sample>