@Override
  protected void onCreate(Bundle savedInstanceState) {
    Log.e(TAG, "onCreate");
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_video_player);

    mVideoSurface = (ResizeSurfaceView) findViewById(R.id.videoSurface);
    mContentView = findViewById(R.id.video_container);
    mLoadingView = findViewById(R.id.loading);
    SurfaceHolder videoHolder = mVideoSurface.getHolder();
    videoHolder.addCallback(this);

    mMediaPlayer = new MediaPlayer();
    mMediaPlayer.setOnVideoSizeChangedListener(this);
    controller = new VideoControllerView(this);
    mLoadingView.setVisibility(View.VISIBLE);

    try {
      mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
      mMediaPlayer.setDataSource(
          this, Uri.parse("http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4"));
      mMediaPlayer.setOnPreparedListener(this);
    } catch (IllegalArgumentException e) {
      e.printStackTrace();
    } catch (SecurityException e) {
      e.printStackTrace();
    } catch (IllegalStateException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }

    mVideoSurface.setOnTouchListener(
        new View.OnTouchListener() {
          @Override
          public boolean onTouch(View v, MotionEvent event) {
            controller.toggleContollerView();
            return false;
          }
        });
  }