How to use MediaController.MediaPlayerControl ?

Question

I am trying to use MediaController.MediaPlayerControl in order to display a MediaController at the bottom of my Custom View but I can't get it to work. It's crashing at the ctrl.show(); with the following Exception whenever I try to load this view:

E/AndroidRuntime( 3007): Caused by: android.view.WindowManager$BadTokenException: Unable to add window -- token null is not valid; is your activity running?

here is my code.

public class MediaPlayerView extends ImageView implements MediaPlayerControl {

  private MediaPlayer mp;
  private MediaController ctrl;
  private Uri data;
  private Context mContext;

  public MediaPlayerView(Context context, Uri data) {
    super(context);
    this.mContext = context;
    this.data = data;
    init();
  }

  public void init() {
    mp = new MediaPlayer();
    try {
      mp.setDataSource(mContext, data);
      mp.prepare();
    } catch(IOException e) {
       e.printStackTrace();
    }
    ctrl = new MediaController(mContext);
    ctrl.setMediaPlayer(this);
    ctrl.setAnchorView(this);
    ctrl.setEnabled(true);
    ctrl.show();
  }

  public boolean canPause() {
    return true;
  }

  public boolean canSeekBackward() {
    return false;
  }

  public boolean canSeekForward() {
    return false;
  }

  public int getBufferPercentage() {
    return (mp.getCurrentPosition()*100)/mp.getDuration();
  }

  public int getCurrentPosition() {
    return mp.getCurrentPosition();
  }

  public int getDuration() {
    return mp.getDuration();
  }

  public boolean isPlaying() {
    return mp.isPlaying();
  }

  public void pause() {
    mp.pause();
  }

  public void seekTo(int pos) {
    mp.seekTo(pos);
  }

  public void start() {
    mp.start();
  }

}

Any help greatly appreciated!

Answer 1

Amazing Solution! I had the same question and I tried to rewrite the VideoView but I didn't realized that I should extends the ImageView.