Merge "Support for AVRCP Player Application settings" (3cbb18c7) · Commits · e / os / android_packages_modules_Bluetooth

android/app/jni/com_android_bluetooth_avrcp_target.cpp

+206 −1

Original line number	Diff line number	Diff line
		@@ -62,6 +62,27 @@ static void volumeDeviceConnected(
		static void volumeDeviceDisconnected(const RawAddress& address);
		static void setVolume(int8_t volume);

		using ListPlayerSettingsCb =
		PlayerSettingsInterface::ListPlayerSettingsCallback;
		static void listPlayerSettings(ListPlayerSettingsCb cb);
		ListPlayerSettingsCb list_player_settings_cb;
		using ListPlayerSettingValuesCb =
		PlayerSettingsInterface::ListPlayerSettingValuesCallback;
		static void listPlayerSettingValues(PlayerAttribute setting,
		ListPlayerSettingValuesCb cb);
		ListPlayerSettingValuesCb list_player_setting_values_cb;
		using GetCurrentPlayerSettingValueCb =
		PlayerSettingsInterface::GetCurrentPlayerSettingValueCallback;
		static void getPlayerSettings(std::vector<PlayerAttribute> attributes,
		GetCurrentPlayerSettingValueCb cb);
		GetCurrentPlayerSettingValueCb get_current_player_setting_value_cb;
		using SetPlayerSettingValueCb =
		PlayerSettingsInterface::SetPlayerSettingValueCallback;
		static void setPlayerSettings(std::vector<PlayerAttribute> attributes,
		std::vector<uint8_t> values,
		SetPlayerSettingValueCb cb);
		SetPlayerSettingValueCb set_player_setting_value_cb;

		// Local Variables
		// TODO (apanicke): Use a map here to store the callback in order to
		// support multi-browsing
		@@ -71,6 +92,18 @@ std::map<std::string, GetFolderItemsCb> get_folder_items_cb_map;
		std::map<RawAddress, ::bluetooth::avrcp::VolumeInterface::VolumeChangedCb>
		volumeCallbackMap;

		template <typename T>
		void copyJavaArraytoCppVector(JNIEnv* env, const jbyteArray& jArray,
		std::vector<T>& cVec) {
		size_t len = (size_t)env->GetArrayLength(jArray);
		if (len == 0) return;
		jbyte* elements = env->GetByteArrayElements(jArray, nullptr);
		T* array = reinterpret_cast<T*>(elements);
		cVec.reserve(len);
		std::copy(array, array + len, std::back_inserter(cVec));
		env->ReleaseByteArrayElements(jArray, elements, 0);
		}

		// TODO (apanicke): In the future, this interface should guarantee that
		// all calls happen on the JNI Thread. Right now this is very difficult
		// as it is hard to get a handle on the JNI thread from here.
		@@ -150,6 +183,30 @@ class VolumeInterfaceImpl : public VolumeInterface {
		};
		static VolumeInterfaceImpl mVolumeInterface;

		class PlayerSettingsInterfaceImpl : public PlayerSettingsInterface {
		public:
		void ListPlayerSettings(ListPlayerSettingsCallback cb) {
		listPlayerSettings(cb);
		}

		void ListPlayerSettingValues(PlayerAttribute setting,
		ListPlayerSettingValuesCallback cb) {
		listPlayerSettingValues(setting, cb);
		}

		void GetCurrentPlayerSettingValue(std::vector<PlayerAttribute> attributes,
		GetCurrentPlayerSettingValueCallback cb) {
		getPlayerSettings(attributes, cb);
		}

		void SetPlayerSettings(std::vector<PlayerAttribute> attributes,
		std::vector<uint8_t> values,
		SetPlayerSettingValueCallback cb) {
		setPlayerSettings(attributes, values, cb);
		}
		};
		static PlayerSettingsInterfaceImpl mPlayerSettingsInterface;

		static jmethodID method_getCurrentSongInfo;
		static jmethodID method_getPlaybackStatus;
		static jmethodID method_sendMediaKeyEvent;
		@@ -170,6 +227,11 @@ static jmethodID method_volumeDeviceDisconnected;

		static jmethodID method_setVolume;

		static jmethodID method_listPlayerSettings;
		static jmethodID method_listPlayerSettingValues;
		static jmethodID method_getPlayerSettings;
		static jmethodID method_setPlayerSettings;

		static void classInitNative(JNIEnv* env, jclass clazz) {
		method_getCurrentSongInfo = env->GetMethodID(
		clazz, "getCurrentSongInfo", "()Lcom/android/bluetooth/audio_util/Metadata;");
		@@ -212,6 +274,18 @@ static void classInitNative(JNIEnv* env, jclass clazz) {

		method_setVolume = env->GetMethodID(clazz, "setVolume", "(I)V");

		method_listPlayerSettings =
		env->GetMethodID(clazz, "listPlayerSettingsRequest", "()V");

		method_listPlayerSettingValues =
		env->GetMethodID(clazz, "listPlayerSettingValuesRequest", "(B)V");

		method_getPlayerSettings =
		env->GetMethodID(clazz, "getCurrentPlayerSettingValuesRequest", "([B)V");

		method_setPlayerSettings =
		env->GetMethodID(clazz, "setPlayerSettingsRequest", "([B[B)V");

		ALOGI("%s: AvrcpTargetJni initialized!", __func__);
		}

		@@ -222,7 +296,8 @@ static void initNative(JNIEnv* env, jobject object) {
		mJavaInterface = env->NewGlobalRef(object);

		sServiceInterface = getBluetoothInterface()->get_avrcp_service();
		sServiceInterface->Init(&mAvrcpInterface, &mVolumeInterface);
		sServiceInterface->Init(&mAvrcpInterface, &mVolumeInterface,
		&mPlayerSettingsInterface);
		}

		static void registerBipServerNative(JNIEnv* env, jobject object,
		@@ -900,6 +975,127 @@ static void setBipClientStatusNative(JNIEnv* env, jobject object,
		sServiceInterface->SetBipClientStatus(bdaddr, status);
		}

		// Called from native to list available player settings
		static void listPlayerSettings(ListPlayerSettingsCb cb) {
		ALOGD("%s", __func__);
		std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
		CallbackEnv sCallbackEnv(__func__);
		if (!sCallbackEnv.valid() \|\| !mJavaInterface) return;

		list_player_settings_cb = std::move(cb);
		sCallbackEnv->CallVoidMethod(mJavaInterface, method_listPlayerSettings);
		}

		static void listPlayerSettingsResponseNative(JNIEnv* env, jobject object,
		jbyteArray attributes) {
		ALOGD("%s", __func__);

		std::vector<PlayerAttribute> attributes_vector;
		copyJavaArraytoCppVector(env, attributes, attributes_vector);

		list_player_settings_cb.Run(std::move(attributes_vector));
		}

		// Called from native to list available values for player setting
		static void listPlayerSettingValues(PlayerAttribute attribute,
		ListPlayerSettingValuesCb cb) {
		ALOGD("%s", __func__);
		std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
		CallbackEnv sCallbackEnv(__func__);
		if (!sCallbackEnv.valid() \|\| !mJavaInterface) return;

		list_player_setting_values_cb = std::move(cb);
		sCallbackEnv->CallVoidMethod(mJavaInterface, method_listPlayerSettingValues,
		(jbyte)attribute);
		}

		static void listPlayerSettingValuesResponseNative(JNIEnv* env, jobject object,
		jbyte attribute,
		jbyteArray values) {
		ALOGD("%s", __func__);
		PlayerAttribute player_attribute = static_cast<PlayerAttribute>(attribute);
		std::vector<uint8_t> values_vector;
		copyJavaArraytoCppVector(env, values, values_vector);
		list_player_setting_values_cb.Run(player_attribute, std::move(values_vector));
		}

		// Called from native to get current player settings
		static void getPlayerSettings(std::vector<PlayerAttribute> attributes,
		GetCurrentPlayerSettingValueCb cb) {
		ALOGD("%s", __func__);
		std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
		CallbackEnv sCallbackEnv(__func__);
		if (!sCallbackEnv.valid() \|\| !mJavaInterface) return;

		jbyteArray attributes_array = sCallbackEnv->NewByteArray(attributes.size());
		sCallbackEnv->SetByteArrayRegion(
		attributes_array, 0, attributes.size(),
		reinterpret_cast<const jbyte*>(attributes.data()));

		get_current_player_setting_value_cb = std::move(cb);
		sCallbackEnv->CallVoidMethod(mJavaInterface, method_getPlayerSettings,
		attributes_array);
		}

		static void getPlayerSettingsResponseNative(JNIEnv* env, jobject object,
		jbyteArray attributes,
		jbyteArray values) {
		ALOGD("%s", __func__);
		std::vector<PlayerAttribute> attributes_vector;
		std::vector<uint8_t> values_vector;
		copyJavaArraytoCppVector(env, attributes, attributes_vector);
		copyJavaArraytoCppVector(env, values, values_vector);
		get_current_player_setting_value_cb.Run(std::move(attributes_vector),
		std::move(values_vector));
		}

		// Called from native to set current player settings
		static void setPlayerSettings(std::vector<PlayerAttribute> attributes,
		std::vector<uint8_t> values,
		SetPlayerSettingValueCb cb) {
		ALOGD("%s", __func__);
		std::shared_lock<std::shared_timed_mutex> lock(callbacks_mutex);
		CallbackEnv sCallbackEnv(__func__);
		if (!sCallbackEnv.valid() \|\| !mJavaInterface) return;

		jbyteArray attributes_array = sCallbackEnv->NewByteArray(attributes.size());
		sCallbackEnv->SetByteArrayRegion(
		attributes_array, 0, attributes.size(),
		reinterpret_cast<const jbyte*>(attributes.data()));

		jbyteArray values_array = sCallbackEnv->NewByteArray(values.size());
		sCallbackEnv->SetByteArrayRegion(
		values_array, 0, values.size(),
		reinterpret_cast<const jbyte*>(values.data()));

		set_player_setting_value_cb = std::move(cb);

		sCallbackEnv->CallVoidMethod(mJavaInterface, method_setPlayerSettings,
		attributes_array, values_array);
		}

		static void setPlayerSettingsResponseNative(JNIEnv* env, jobject object,
		jboolean success) {
		ALOGD("%s", __func__);
		set_player_setting_value_cb.Run(success);
		}

		static void sendPlayerSettingsNative(JNIEnv* env, jobject object,
		jbyteArray attributes, jbyteArray values) {
		ALOGD("%s", __func__);
		std::unique_lock<std::shared_timed_mutex> interface_lock(interface_mutex);
		if (mServiceCallbacks == nullptr) {
		ALOGW("%s: Service not loaded.", __func__);
		return;
		}
		std::vector<PlayerAttribute> attributes_vector;
		std::vector<uint8_t> values_vector;
		copyJavaArraytoCppVector(env, attributes, attributes_vector);
		copyJavaArraytoCppVector(env, values, values_vector);
		mServiceCallbacks->SendPlayerSettingsChanged(attributes_vector,
		values_vector);
		}

		static JNINativeMethod sMethods[] = {
		{"classInitNative", "()V", (void*)classInitNative},
		{"initNative", "()V", (void*)initNative},
		@@ -920,6 +1116,15 @@ static JNINativeMethod sMethods[] = {
		(void*)sendVolumeChangedNative},
		{"setBipClientStatusNative", "(Ljava/lang/String;Z)V",
		(void*)setBipClientStatusNative},
		{"listPlayerSettingsResponseNative", "([B)V",
		(void*)listPlayerSettingsResponseNative},
		{"listPlayerSettingValuesResponseNative", "(B[B)V",
		(void*)listPlayerSettingValuesResponseNative},
		{"getPlayerSettingsResponseNative", "([B[B)V",
		(void*)getPlayerSettingsResponseNative},
		{"setPlayerSettingsResponseNative", "(Z)V",
		(void*)setPlayerSettingsResponseNative},
		{"sendPlayerSettingsNative", "([B[B)V", (void*)sendPlayerSettingsNative},
		};

		int register_com_android_bluetooth_avrcp_target(JNIEnv* env) {

android/app/src/com/android/bluetooth/audio_util/MediaPlayerList.java

+26 −1

Original line number	Diff line number	Diff line
		@@ -108,6 +108,8 @@ public class MediaPlayerList {

		private BrowsablePlayerConnector mBrowsablePlayerConnector;

		private MediaPlayerSettingsEventListener mPlayerSettingsListener;

		public interface MediaUpdateCallback {
		void run(MediaData data);
		void run(boolean availablePlayers, boolean addressedPlayers, boolean uids);
		@@ -121,6 +123,16 @@ public class MediaPlayerList {
		void run(String parentId, List<ListItem> items);
		}

		/**
		* Listener for PlayerSettingsManager.
		*/
		public interface MediaPlayerSettingsEventListener {
		/**
		* Called when the active player has changed.
		*/
		void onActivePlayerChanged(MediaPlayerWrapper player);
		}

		public MediaPlayerList(Looper looper, Context context) {
		Log.v(TAG, "Creating MediaPlayerList");

		@@ -633,6 +645,10 @@ public class MediaPlayerList {
		mActivePlayerLogger.logd(TAG, "setActivePlayer(): setting player to "
		+ getActivePlayer().getPackageName());

		if (mPlayerSettingsListener != null) {
		mPlayerSettingsListener.onActivePlayerChanged(getActivePlayer());
		}

		// Ensure that metadata is synced on the new player
		if (!getActivePlayer().isMetadataSynced()) {
		Log.w(TAG, "setActivePlayer(): Metadata not synced on new player");
		@@ -696,7 +712,12 @@ public class MediaPlayerList {
		synchronized (MediaPlayerList.this) {
		Log.v(TAG, "onActiveSessionsChanged: number of controllers: "
		+ newControllers.size());
		if (newControllers.size() == 0) return;
		if (newControllers.size() == 0) {
		if (mPlayerSettingsListener != null) {
		mPlayerSettingsListener.onActivePlayerChanged(null);
		}
		return;
		}

		// Apps are allowed to have multiple MediaControllers. If an app does have
		// multiple controllers then newControllers contains them in highest
		@@ -797,6 +818,10 @@ public class MediaPlayerList {
		updateMediaForAudioPlayback();
		}

		void setPlayerSettingsCallback(MediaPlayerSettingsEventListener listener) {
		mPlayerSettingsListener = listener;
		}

		private final AudioManager.AudioPlaybackCallback mAudioPlaybackCallback =
		new AudioManager.AudioPlaybackCallback() {
		@Override

android/app/src/com/android/bluetooth/audio_util/MediaPlayerWrapper.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -108,6 +108,10 @@ public class MediaPlayerWrapper {
		return mPackageName;
		}

		public MediaSession.Token getSessionToken() {
		return mMediaController.getSessionToken();
		}

		protected List<MediaSession.QueueItem> getQueue() {
		return mMediaController.getQueue();
		}

android/app/src/com/android/bluetooth/audio_util/PlayerSettingsManager.java

0 → 100644

+271 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright 2023 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.android.bluetooth.audio_util;

		import android.support.v4.media.session.MediaControllerCompat;
		import android.support.v4.media.session.MediaSessionCompat;
		import android.support.v4.media.session.PlaybackStateCompat;

		import com.android.bluetooth.avrcp.AvrcpTargetService;

		/**
		* Manager class for player apps.
		*/
		public class PlayerSettingsManager {
		private static final String TAG = "PlayerSettingsManager";

		private final MediaPlayerList mMediaPlayerList;
		private final AvrcpTargetService mService;

		private MediaControllerCompat mActivePlayerController;
		private final MediaControllerCallback mControllerCallback;

		/**
		* Instantiates a new PlayerSettingsManager.
		*
		* @param mediaPlayerList is used to retrieve the current active player.
		*/
		public PlayerSettingsManager(MediaPlayerList mediaPlayerList, AvrcpTargetService service) {
		mService = service;
		mMediaPlayerList = mediaPlayerList;
		mMediaPlayerList.setPlayerSettingsCallback(
		(mediaPlayerWrapper) -> activePlayerChanged(mediaPlayerWrapper));
		mControllerCallback = new MediaControllerCallback();

		MediaPlayerWrapper wrapper = mMediaPlayerList.getActivePlayer();
		if (wrapper != null) {
		mActivePlayerController = new MediaControllerCompat(mService,
		MediaSessionCompat.Token.fromToken(wrapper.getSessionToken()));
		mActivePlayerController.registerCallback(mControllerCallback);
		} else {
		mActivePlayerController = null;
		}
		}

		/**
		* Unregister callbacks
		*/
		public void cleanup() {
		updateRemoteDevice();
		if (mActivePlayerController != null) {
		mActivePlayerController.unregisterCallback(mControllerCallback);
		}
		}

		/**
		* Updates the active player controller.
		*/
		private void activePlayerChanged(MediaPlayerWrapper mediaPlayerWrapper) {
		if (mActivePlayerController != null) {
		mActivePlayerController.unregisterCallback(mControllerCallback);
		}
		if (mediaPlayerWrapper != null) {
		mActivePlayerController = new MediaControllerCompat(mService,
		MediaSessionCompat.Token.fromToken(mediaPlayerWrapper.getSessionToken()));
		mActivePlayerController.registerCallback(new MediaControllerCallback());
		} else {
		mActivePlayerController = null;
		updateRemoteDevice();
		}
		}

		/**
		* Sends the MediaController values of the active player to the remote device.
		*
		* This is called when:
		* - The class is created and the session is ready
		* - The class is destroyed
		* - The active player changed and the session is ready
		* - The last active player has been removed
		* - The repeat / shuffle player state changed
		*/
		private void updateRemoteDevice() {
		mService.sendPlayerSettings(getPlayerRepeatMode(), getPlayerShuffleMode());
		}

		/**
		* Called from remote device to set the active player repeat mode.
		*/
		public boolean setPlayerRepeatMode(int repeatMode) {
		if (mActivePlayerController == null) {
		return false;
		}
		MediaControllerCompat.TransportControls controls =
		mActivePlayerController.getTransportControls();
		switch (repeatMode) {
		case PlayerSettingsValues.STATE_REPEAT_OFF:
		controls.setRepeatMode(PlaybackStateCompat.REPEAT_MODE_NONE);
		return true;
		case PlayerSettingsValues.STATE_REPEAT_SINGLE_TRACK:
		controls.setRepeatMode(PlaybackStateCompat.REPEAT_MODE_ONE);
		return true;
		case PlayerSettingsValues.STATE_REPEAT_GROUP:
		controls.setRepeatMode(PlaybackStateCompat.REPEAT_MODE_GROUP);
		return true;
		case PlayerSettingsValues.STATE_REPEAT_ALL_TRACK:
		controls.setRepeatMode(PlaybackStateCompat.REPEAT_MODE_ALL);
		return true;
		default:
		controls.setRepeatMode(PlaybackStateCompat.REPEAT_MODE_NONE);
		return false;
		}
		}

		/**
		* Called from remote device to set the active player shuffle mode.
		*/
		public boolean setPlayerShuffleMode(int shuffleMode) {
		if (mActivePlayerController == null) {
		return false;
		}
		MediaControllerCompat.TransportControls controls =
		mActivePlayerController.getTransportControls();
		switch (shuffleMode) {
		case PlayerSettingsValues.STATE_SHUFFLE_OFF:
		controls.setShuffleMode(PlaybackStateCompat.SHUFFLE_MODE_NONE);
		return true;
		case PlayerSettingsValues.STATE_SHUFFLE_GROUP:
		controls.setShuffleMode(PlaybackStateCompat.SHUFFLE_MODE_GROUP);
		return true;
		case PlayerSettingsValues.STATE_SHUFFLE_ALL_TRACK:
		controls.setShuffleMode(PlaybackStateCompat.SHUFFLE_MODE_ALL);
		return true;
		default:
		controls.setShuffleMode(PlaybackStateCompat.SHUFFLE_MODE_NONE);
		return false;
		}
		}

		/**
		* Retrieves & converts the repeat value of the active player MediaController to AVRCP values
		*/
		public int getPlayerRepeatMode() {
		if (mActivePlayerController == null) {
		return PlayerSettingsValues.STATE_REPEAT_OFF;
		}
		int mediaFwkMode = mActivePlayerController.getRepeatMode();
		switch (mediaFwkMode) {
		case PlaybackStateCompat.REPEAT_MODE_NONE:
		return PlayerSettingsValues.STATE_REPEAT_OFF;
		case PlaybackStateCompat.REPEAT_MODE_ONE:
		return PlayerSettingsValues.STATE_REPEAT_SINGLE_TRACK;
		case PlaybackStateCompat.REPEAT_MODE_GROUP:
		return PlayerSettingsValues.STATE_REPEAT_GROUP;
		case PlaybackStateCompat.REPEAT_MODE_ALL:
		return PlayerSettingsValues.STATE_REPEAT_ALL_TRACK;
		case PlaybackStateCompat.REPEAT_MODE_INVALID:
		return PlayerSettingsValues.STATE_REPEAT_OFF;
		default:
		return PlayerSettingsValues.STATE_REPEAT_OFF;
		}
		}

		/**
		* Retrieves & converts the shuffle value of the active player MediaController to AVRCP values
		*/
		public int getPlayerShuffleMode() {
		if (mActivePlayerController == null) {
		return PlayerSettingsValues.STATE_SHUFFLE_OFF;
		}
		int mediaFwkMode = mActivePlayerController.getShuffleMode();
		switch (mediaFwkMode) {
		case PlaybackStateCompat.SHUFFLE_MODE_NONE:
		return PlayerSettingsValues.STATE_SHUFFLE_OFF;
		case PlaybackStateCompat.SHUFFLE_MODE_GROUP:
		return PlayerSettingsValues.STATE_SHUFFLE_GROUP;
		case PlaybackStateCompat.SHUFFLE_MODE_ALL:
		return PlayerSettingsValues.STATE_SHUFFLE_ALL_TRACK;
		case PlaybackStateCompat.SHUFFLE_MODE_INVALID:
		return PlayerSettingsValues.STATE_SHUFFLE_OFF;
		default:
		return PlayerSettingsValues.STATE_SHUFFLE_OFF;
		}
		}

		// Receives callbacks from the MediaControllerCompat.
		private class MediaControllerCallback extends MediaControllerCompat.Callback {
		@Override
		public void onRepeatModeChanged(final int repeatMode) {
		updateRemoteDevice();
		}

		@Override
		public void onSessionReady() {
		updateRemoteDevice();
		}

		@Override
		public void onShuffleModeChanged(final int shuffleMode) {
		updateRemoteDevice();
		}
		}

		/**
		* Class containing all the Shuffle/Repeat values as defined in the BT spec.
		*/
		public static final class PlayerSettingsValues {
		/**
		* Repeat setting, as defined by Bluetooth specification.
		*/
		public static final int SETTING_REPEAT = 2;

		/**
		* Shuffle setting, as defined by Bluetooth specification.
		*/
		public static final int SETTING_SHUFFLE = 3;

		/**
		* Repeat OFF state, as defined by Bluetooth specification.
		*/
		public static final int STATE_REPEAT_OFF = 1;

		/**
		* Single track repeat, as defined by Bluetooth specification.
		*/
		public static final int STATE_REPEAT_SINGLE_TRACK = 2;

		/**
		* All track repeat, as defined by Bluetooth specification.
		*/
		public static final int STATE_REPEAT_ALL_TRACK = 3;

		/**
		* Group repeat, as defined by Bluetooth specification.
		*/
		public static final int STATE_REPEAT_GROUP = 4;

		/**
		* Shuffle OFF state, as defined by Bluetooth specification.
		*/
		public static final int STATE_SHUFFLE_OFF = 1;

		/**
		* All track shuffle, as defined by Bluetooth specification.
		*/
		public static final int STATE_SHUFFLE_ALL_TRACK = 2;

		/**
		* Group shuffle, as defined by Bluetooth specification.
		*/
		public static final int STATE_SHUFFLE_GROUP = 3;

		/**
		* Default state off.
		*/
		public static final int STATE_DEFAULT_OFF = 1;
		}
		}

android/app/src/com/android/bluetooth/avrcp/AvrcpNativeInterface.java

+106 −0

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