How to use

android.media.RemoteControlClient

constructor

@SuppressWarnings("deprecation")
@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
private void setUpRemoteControlClient() {
  //Legacy for ICS
  if (mRemoteControlClient == null) {
    Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
    mediaButtonIntent.setComponent(mMediaButtonReceiverComponent);
    PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(this, 0, mediaButtonIntent, 0);
    // create and register the remote control client
    mRemoteControlClient = new RemoteControlClient(mediaPendingIntent);
    mAudioManager.registerRemoteControlClient(mRemoteControlClient);
  }
  mRemoteControlClient.setTransportControlFlags(
      RemoteControlClient.FLAG_KEY_MEDIA_PLAY |
          RemoteControlClient.FLAG_KEY_MEDIA_PAUSE |
          RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS |
          RemoteControlClient.FLAG_KEY_MEDIA_NEXT |
          RemoteControlClient.FLAG_KEY_MEDIA_STOP);
}

void windowAttached() {
  mContext.registerReceiver(mMediaButtonReceiver, mReceiverFilter);
  mPendingIntent = PendingIntent.getBroadcast(mContext, 0, mIntent,
      PendingIntent.FLAG_CANCEL_CURRENT);
  mRemoteControl = new RemoteControlClient(mPendingIntent);
  mRemoteControl.setOnGetPlaybackPositionListener(this);
  mRemoteControl.setPlaybackPositionUpdateListener(this);
}

@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
void registerRemoteControl(ComponentName rcvMedia) {
  mAudioManager.requestAudioFocus(this, AudioManager.STREAM_MUSIC,
      AudioManager.AUDIOFOCUS_GAIN);
  Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
  mediaButtonIntent.setComponent(rcvMedia);
  PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(getApplicationContext(),
      0, mediaButtonIntent, 0);
  remoteControlClient = new RemoteControlClient(mediaPendingIntent);
  remoteControlClient.setTransportControlFlags(
      RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE |
          RemoteControlClient.FLAG_KEY_MEDIA_NEXT |
          RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS
  );
  mAudioManager.registerRemoteControlClient(remoteControlClient);
}

/**
 * Perform initialization required for RemoteControlClient.
 */
public void initializeRemote() {
  // make sure there is only one registered remote
  unregisterRemote();
  if (MediaButtonReceiver.useHeadsetControls(mContext) == false)
    return;
  // Receive 'background' play button events
  AudioManager audioManager = (AudioManager)mContext.getSystemService(Context.AUDIO_SERVICE);
  ComponentName receiver = new ComponentName(mContext.getPackageName(), MediaButtonReceiver.class.getName());
  audioManager.registerMediaButtonEventReceiver(receiver);
  Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
  mediaButtonIntent.setComponent(new ComponentName(mContext.getPackageName(), MediaButtonReceiver.class.getName()));
  PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(mContext, 0, mediaButtonIntent, 0);
  RemoteControlClient remote = new RemoteControlClient(mediaPendingIntent);
  // Things we can do (eg: buttons to display on lock screen)
  int flags = RemoteControlClient.FLAG_KEY_MEDIA_NEXT
    | RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS
    | RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE
    | RemoteControlClient.FLAG_KEY_MEDIA_PLAY
    | RemoteControlClient.FLAG_KEY_MEDIA_PAUSE;
  remote.setTransportControlFlags(flags);
  audioManager.registerRemoteControlClient(remote);
  mRemote = remote;
}

mediaButtonIntent.setComponent(remoteComponentName);
PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(this, 0, mediaButtonIntent, 0);
remoteControlClient = new RemoteControlClient(mediaPendingIntent);
audioManager.registerRemoteControlClient(remoteControlClient);

PendingIntent mediaPendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 0, mediaButtonIntent, 0);
remoteControlClient = new RemoteControlClient(mediaPendingIntent);
remoteControlClient.setTransportControlFlags(RemoteControlClient.FLAG_KEY_MEDIA_PLAY_PAUSE | RemoteControlClient.FLAG_KEY_MEDIA_PREVIOUS | RemoteControlClient.FLAG_KEY_MEDIA_NEXT);
audioManager.registerRemoteControlClient(remoteControlClient);

private void registerRemoteControlClient() {
  if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
    // Create the RCC and register with AudioManager and MediaRouter
    mAudioManager.requestAudioFocus(mAfChangeListener, AudioManager.STREAM_MUSIC,
        AudioManager.AUDIOFOCUS_GAIN);
    mAudioManager.registerMediaButtonEventReceiver(mEventReceiver);
    mRemoteControlClient = new RemoteControlClient(mMediaPendingIntent);
    mAudioManager.registerRemoteControlClient(mRemoteControlClient);
    mMediaRouter.addRemoteControlClient(mRemoteControlClient);
    SampleMediaButtonReceiver.setActivity(MainActivity.this);
    mRemoteControlClient.setTransportControlFlags(RemoteControlClient
        .FLAG_KEY_MEDIA_PLAY_PAUSE);
    mRemoteControlClient.setPlaybackState(RemoteControlClient.PLAYSTATE_PLAYING);
  }
}