android - VideoView 不显示在 fragment 上

Question

我在三星 S3(Android 4.1.1)中运行视频时遇到问题，问题似乎是因为 videoview 在 fragment 上，因为如果我打开它并进行 Activity ，它就可以工作。 我还发现，如果我打开 GPU 硬件加速，视频就可以播放。 我还有一个通过在 SurfaceView 上绘图制作的游戏，但该 View 效果不佳(仅在 GPU 开启时)...应用程序的其余内容按预期显示(按钮和其他布局)。

我在 Nexus S 和模拟器上测试了该应用程序，它运行良好，在其他设备上也是如此..

有人知道问题出在哪里吗？ 谢谢!

代码如下:

public class VideoFragment extends Fragment implements MediaPlayer.OnCompletionListener,
        MediaPlayer.OnPreparedListener, MediaPlayer.OnErrorListener {

    private Video mVideo;
    private VideoView mVideoView;
    // The video position
    private int mPosition;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        View fragmentView = inflater.inflate(R.layout.screen_video, container, false);

        mVideoView = (VideoView) fragmentView.findViewById(R.id.VideoView);

        return fragmentView;
    }


    @Override
    public void onPause() {
        super.onPause();

        // Pause the video if it is playing
        if (mVideoView.isPlaying()) {
            mVideoView.pause();
        }

        // Save the current video position
        mPosition = mVideoView.getCurrentPosition();
    }

    @Override
    public void onResume() {
        super.onResume();

        mVideoView.setOnCompletionListener(this);
        mVideoView.setOnPreparedListener(this);
        mVideoView.setOnErrorListener(this);
        mVideoView.setKeepScreenOn(true);

        // Initialize the media controller
        MediaController mediaController = new MediaController(getActivity());
        mediaController.setMediaPlayer(mVideoView);
        // Set-up the video view
        mVideoView.setMediaController(mediaController);
        mVideoView.requestFocus();
        mVideoView.setVideoPath(mVideo.getUrl());

        if (mVideoView != null) {
            // Restore the video position
            mVideoView.seekTo(mPosition);
            mVideoView.requestFocus();
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();

        // Clean-up
        if (mVideoView != null) {
            mVideoView.stopPlayback();
            mVideoView = null;
        }
    }

    @Override
    public void onCompletion(MediaPlayer mediaPlayer) {
        Log.e("VIDEO PLAY", "end video play");
    }

    @Override
    public void onPrepared(MediaPlayer mediaPlayer) {
        // Start the video view
        mediaPlayer.start();
        Log.e("VIDEO PLAY", "video ready for playback");
    }

    @Override
    public boolean onError(MediaPlayer mediaPlayer, int i, int i1) {
        Log.e("VIDEO PLAY", "error: " + i);
        return true;
    }

}

我不认为它与上下文(应用程序或 Activity )有关..因为在所有其他设备上显示视频和游戏.. 感谢您的帮助!

Answer 1

我有一个类似的问题，我通过更改解决了它:

 MediaController mediaController = new MediaController(getActivity().getApplicationContext());

对此(在 fragment 中):

 MediaController mediaController = new MediaController(getActivity());

希望这有帮助，...

编辑

看看这个类

http://code.google.com/p/sinaweibo-honeycomb/source/browse/branches/sinaweibo-merged/src/com/lenovo/dll/SinaWeibo/VideoFragment.java?r=71