永远不会触发MediaPlayer OnCompletionListener

Question

我使用以下代码实现了MediaPlayer，但它从不调用onCompletion。我正在从局域网中传输mp3。知道什么是错的吗？

mMediaPlayer = new MediaPlayer();
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.setOnPreparedListener(new OnPreparedListener()
{
    @Override
    public void onPrepared(MediaPlayer mp)
    {
        mMediaPlayer.start();
    }
});
mMediaPlayer.setOnCompletionListener(new OnCompletionListener()
{
    @Override
    public void onCompletion(MediaPlayer mp)
    {
        // Nothing here gets executed
        mMediaPlayer.start();
    }
});

mMediaPlayer.reset();
mMediaPlayer.setDataSource(url);
mMediaPlayer.prepareAsync();