Question

我想要完成的是我停止了音乐，然后当我再次按下播放按钮时，媒体播放器将播放它。但我现在遇到的问题是在按下停止按钮后，我无法再播放音乐。这是我的代码：

Button play,pause,stop;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.audio_beginagain);

    play = (Button) findViewById(R.id.play);
    pause = (Button) findViewById(R.id.pause);
    stop = (Button) findViewById(R.id.stop);

    final MediaPlayer sound = MediaPlayer.create(Audio_BeginAgain.this, R.raw.beginagain);
    final MediaPlayer mp = new MediaPlayer();

    play.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            sound.start();
        }
    });

    pause.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            sound.pause();
        }
    });

    stop.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            sound.stop();
        }
    });



}

Answer 1

您可以简单地添加一个完成侦听器，然后使用 mediaPlayer.seekto(0) 和 start()：

mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mp) {
                mediaPlayer.seekTo(0);
                mediaPlayer.start();
            }
        });
}

Answer 2

这正是Md Abdul Gafur所说的......

每次要重新播放MediaPlayer时，都必须使用create()初始化新内容。

看看这段代码：

public class PlayaudioActivity extends Activity {

    private MediaPlayer mp;

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        Button b = (Button) findViewById(R.id.button1);
        Button b2 = (Button) findViewById(R.id.button2);
        final TextView t = (TextView) findViewById(R.id.textView1);

        b.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                stopPlaying();
                mp = MediaPlayer.create(PlayaudioActivity.this, R.raw.far);
                mp.start();
            }

        });

        b2.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                stopPlaying();
                mp = MediaPlayer.create(PlayaudioActivity.this, R.raw.beet);
                mp.start();
            }
        });
    }

    private void stopPlaying() {
        if (mp != null) {
            mp.stop();
            mp.release();
            mp = null;
       }
    }
}

代码复制自：Android MediaPlayer Stop and Play

停止并重播音频文件

2 个答案: