我也遇到了同样的问题，我通过添加以下代码来释放播放器解决了:

I was getting the same problem, I solved it by adding the following code to release the player:

mp1 = MediaPlayer.create(sound.this, R.raw.pan1);
mp1.start();
mp1.setOnCompletionListener(new OnCompletionListener() {
    public void onCompletion(MediaPlayer mp) {
        mp.release();

    };
});