无法启动android MediaPlayer onCompletion [英] Cannot get android MediaPlayer onCompletion to fire

问题描述

我正在尝试使用android MediaPlayer类播放一些声音.

I'm trying to use the android MediaPlayer class to play some sounds.

这是代码

MediaPlayer mp = new MediaPlayer(); 
mp.setDataSource(context, Uri.parse(soundUrl)); 
mp.setAudioStreamType(AudioManager.STREAM_MUSIC); 
mp.setLooping(false); 
mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { 
    @Override 
            public void onCompletion(MediaPlayer mp) { 
                Log.i(LOGTAG, "onComplete hit"); 
                mp.stop(); 
                mp.release(); 
            } 
    });         

mp.prepare(); 
mp.start();

此代码在服务中运行，但是由于某种原因，声音可以正常播放，但是放在onCompletion中的任何内容似乎都不会触发.然后，我在logcat中收到一条消息，指出未释放Mediaplayer.我对此感到不知所措.

This code runs in a service, but for some reason the sound plays ok, but anything placed into the onCompletion doesn't seem to fire. I then get a message in the logcat that the mediaplayer wasn't released. I'm at a loss to what I've got wrong with this.

我正在对银河系4.0.4库存光驱进行此测试.

I'm running this testing on a galaxy nexus 4.0.4 stock rom.

我还注意到声音可能会在最后被剪切掉.

I also notice that the sound can get clipped at the end.

推荐答案

这是我的方法:

    video.setOnCompletionListener(this);
    IntroClip.execute(video);
}

@Override
public void onCompletion(MediaPlayer mp){
    Button LoginButton;
    Button CreateAccount;
    Button RecoverPass;

    setContentView(R.layout.loginmenu);
    Spin = (ProgressBar)findViewById(R.id.Spinner);

    mp.release();       
}

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