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如何阻止媒体播放器在线程内运行
原标题:how to stop media player running inside a thread
  • 时间:2011-02-17 09:08:02
  •  标签:
  • android

每当按下进程对话框的停止选项时,我试图停止媒体播放器并退出我的活动类,但通过使用以下代码,我可以退出我的行为类,但无法停止媒体播放器的声音,并且它一直运行,直到线程停止。。

Please help me on this matter Thanx in advance..

public class Test_Service extends Activity {

private MediaPlayer mp;
private Thread welcomeThread;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    mp = MediaPlayer.create(Test_Service.this,R.raw.alarm1);


    welcomeThread=new Thread() {
      int wait = 0;
            @Override
        public void run() {
            try {
                super.run();
                    while (wait <30000) {

                     mp.start();
                     sleep(3000);
                    wait +=3000;
                    }
            } catch (Exception e) {
                System.out.println("EXc=" + e);
            } finally {

        }
        }
    };
    new AlertDialog.Builder(Test_Service.this)
    .setTitle("Alarm is running")
    .setPositiveButton("Stop",new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int whichButton) {
        mp.stop();
                    welcomeThread.stop(); 
        Test_Service.this.finish();

    }
    })
    .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
    public void onClick(DialogInterface dialog, int whichButton) {
        mp.stop();
        Test_Service.this.finish();


}
    })
    .create().show();
    welcomeThread.start();
        }

    }
最佳回答

首先,您应该使用Handler及其postDelayed()方法延迟启动。

此外,您可以在AlertDialog上设置以下OnDismissListener,并在那里停止播放器以避免代码重复。

dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {

    @Override
    public void onDismiss(DialogInterface dialog) {
        mp.release();
        handler.removeCallbacks(startingRunnable);
        finish();
    }
});

MediaPlayer.release()将停止您的MediaPlayer并将其释放。如果您想重用此MediaPlayer,您必须在调用release)后创建一个新的MediaPlayer。

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