How to use

setOnGetPlaybackPositionListener

method

in

android.media.RemoteControlClient

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);
}