mediaplayer在退出應用程序或電話鈴響時停止播放歌曲

當我點擊主頁按鈕或當我接聽電話時，我的歌曲不停止播放？當歌曲停止時，我的計時器也不停止？有沒有辦法阻止我的計時器？你可以幫我嗎？mediaplayer在退出應用程序或電話鈴響時停止播放歌曲

public class MainActivity extends Activity { 

    private Button start, stop; 
    private MediaPlayer mp; 
    private TextView display, comment; 

    private TextView timerValue; 

    private long startTime = 0L; 

    private Handler customHandler = new Handler(); 

    long timeInMilliseconds = 0L; 
    long timeSwapBuff = 0L; 
    long updatedTime = 0L; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     timerValue = (TextView) findViewById(R.id.timerValue); 
     start = (Button) findViewById(R.id.bStart); 
     start.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 

       mp = MediaPlayer.create(MainActivity.this, R.raw.splahsound); 
       mp.start(); 
       startTime = SystemClock.uptimeMillis(); 
       customHandler.postDelayed(updateTimerThread, 0); 

       mp.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { 

        @Override 
        public void onCompletion(MediaPlayer mp) { 

         mp.stop(); 
         mp.reset(); 
         mp.release(); // free up memory 
         mp = null; 

        } 

       }); 

      } 
     }); 

     stop = (Button) findViewById(R.id.bDur); 
     stop.setOnClickListener(new View.OnClickListener() { 

      @Override 
      public void onClick(View v) { 

       if (mp != null) { 
        try { 

         mp.stop(); 
         mp.reset(); 
         mp.release(); 
         mp = null; 

        } catch (Exception e) { 
         Log.d("error", e.toString()); 
        } 
       } 
       timeSwapBuff += timeInMilliseconds; 
       customHandler.removeCallbacks(updateTimerThread); 
          } 
     }); 
    } 

    @Override 
    protected void onPause() { 
     super.onPause();  
    } 

    private Runnable updateTimerThread = new Runnable() { 

     public void run() { 

      timeInMilliseconds = SystemClock.uptimeMillis() - startTime; 

      updatedTime = timeSwapBuff + timeInMilliseconds; 

      int secs = (int) (updatedTime/1000); 
      int mins = secs/60; 
      secs = secs % 60; 
      // int milliseconds = (int) (updatedTime % 1000); 
      timerValue.setText("" + mins + ":" + String.format("%02d", secs)); 
      customHandler.postDelayed(this, 0); 
     } 

    }; 

}

來源

2014-04-14 user3532857

你必須使用服務！ – Mahfa

您可以在的onPause方法停止MediaPlayer的：

@Override 
protected void onPause() { 
    //stop mediaplayer: 
    if (mp != null && mp.isPlaying()) { 
     mp.stop(); 
    } 
    super.onPause();  
}

相反的：

@Override 
protected void onPause() { 
    super.onPause();  
}

注：如果MediaPlayer的當前正在播放的檢查是很重要的，因爲調用stop()方法在MediaPlayer上當前未播放將引發IlegalStateException。

來源

2014-04-14 17:03:58 donfuxx

您可以通過在onPause中調用該方法來調用以相同方式停止計時器的方法 – donfuxx

你需要重寫的onPause和的onResume停止，當您按下Home鍵

@Override 
public void onPause() { 
    super.onPause(); // Always call the superclass method first 
    mp.pause(); 
    // stop the clock 
} 

@Override 
public void onResume() { 
    super.onPause(); // Always call the superclass method first 
    mp.start(); 
    // re-sync the clock with player... 
}

如果你需要停止任何事情時，你的電話響了，在後臺您的應用程序運行需要訂閱你的應用程序PHONE_STATE，見this link

來源

2014-04-14 17:13:38 user2009158

mediaplayer在退出應用程序或電話鈴響時停止播放歌曲

回答

相關問題