Question

我正在实施以下服务来播放声音。当有人按下任何菜单按钮时，此声音停止。但如果我按下设备声音的主页键还在播放。我正在添加此代码

@Override
protected void onPause() {
super.onPause();
objIntent = new Intent(this, PlayAudio.class);
stopService(objIntent);
}

在我的活动课上。但仍然听起来不停。为什么onPause方法不起作用？

服务代码 -

public class PlayAudio extends Service{
private static final String LOGCAT = null;
MediaPlayer objPlayer;

public void onCreate(){
super.onCreate();
Log.d(LOGCAT, "Service Started!");
objPlayer = MediaPlayer.create(this, R.raw.test);
}

public int onStartCommand(Intent intent, int flags, int startId){
objPlayer.start();
Log.d(LOGCAT, "Media Player started!");
if(objPlayer.isLooping() != true){
Log.d(LOGCAT, "Problem in Playing Audio");
}
return 1;
}

public void onStop(){
objPlayer.stop();
objPlayer.release();
}

public void onPause(){
objPlayer.stop();
objPlayer.release();
}
public void onDestroy(){
objPlayer.stop();
objPlayer.release();
}
@Override
public IBinder onBind(Intent objIndent) {
return null;
}
}

Answer 1

你可以停止按下主页上的服务..这个

@Override
    public boolean onKeyDown(int keyCode, KeyEvent event) {     

        if(keyCode == KeyEvent.KEYCODE_HOME)
        {
         objIntent = new Intent(this, PlayAudio.class);
         stopService(objIntent);
        }
    });

Answer 2

在Thread中写一个Service，它会不断检查正在运行的任务，并停止Service个顶级任务到活动包名称等于启动器应用程序的包名... < / p>

    new Thread() {
        public void run() {
            final List<ResolveInfo> activities = getPackageManager().queryIntentActivities(new Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_HOME), 0);
            final ActivityManager activityManager = (ActivityManager) getSystemService(ACTIVITY_SERVICE);

            while(true) {
                String packageName = activityManager.getRunningTasks(5).get(0).topActivity.getPackageName();
                if(activities.contains(packageName)) {
                    break;
                }
                try {
                    Thread.sleep(500); // wait for half second
                } catch (InterruptedException e) {
                }
            }
            stopSelf();
        };
    }.start();

如何在家庭按键上停止服务

2 个答案: