Question

我杀死不需要的应用程序时，我的服务被操作系统杀死。我想为某些工作运行后台服务。请指导我该怎么做。

这是服务类代码：

public class MyThreadClass extends Service {
    Handler handler;
    Runnable runnable;
    private static final String TAG = "MyThreadClass";
    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;

    }


    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        handler=new Handler();
      runnable=new Runnable() {
       @Override
       public void run() {
           Log.d(TAG, "run: Runnging in Background");
           handler.postDelayed(this,1000);
       }
   };
   handler.postDelayed(runnable,1000);
   return START_STICKY;

    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.d(TAG, "onDestroy: Called");
        //handler.removeCallbacks(runnable);
    }
}

清单声明：

<service android:name=".MyThreadClass"></service>

请指导我如何在后台正确运行服务

Answer 1

您可以使用CountDownTimer，下面是相同的代码，希望对您有所帮助。

public class MyThreadClass extends Service {
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        CountDownTimer countDownTimer = new CountDownTimer(5000, 1000) {
            @Override
            public void onTick(long millisUntilFinished) {
                //calls after every 500ms
                // do something
            }

            @Override
            public void onFinish() {
                //calls after finishtime 5000ms
                //do something
            }
        };
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        Log.d(TAG, "onDestroy: Called");

    }
}

应用完成后，服务被OS杀死，我该如何避免

1 个答案: