android - 在将 OnPreparedListener 设置为 VideoView 后，它永远不会在构建 Android 4.4 的设备中对 onPrepared(MediaPlayer mp) 方法进行回调

Question

在我的 nexus-5 中，我在视频视图上设置的进度指示器永远不会消失。我的代码是

 PlayerActivity extends Activity{
    private VideoView mVideoView;
      private OnPreparedListener mListner=new OnPreparedListener() {

            @Override
            public void onPrepared(MediaPlayer mp) {

            //dismiss progress indicator

            }
        };


@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.playback_activity);
  mVideoView = (VideoView) findViewById(R.id.video_view);
  mVideoView.setOnPreparedListener(mListner);
 // show progress dialog on videoView
 ...
 ...

}