Java 如何在退出应用程序时防止服务被破坏

我有一个服务类，它从firebase读取数据并将数据发送到模型以获得响应。但是，问题是，当我退出应用程序时，服务被破坏

注释：

我的服务在我登录时启动，在我注销应用时必须销毁

我的服务类包含broadcast receiver作为一个内部类来显示对话框，以防我从模型中获得所需的响应来显示自定义对话框

^这张便条写得很好，以备不时之需

我寻找已经被问到的问题，没有人解决我的问题

当我退出应用程序时，我必须让服务运行

清单文件：

<service android:name=".ModelServiceM"
android:enabled="true"
android:exported="false" />

---

即使应用程序关闭，也可以查看他们使用的前台服务

public class ModelServiceM extends Service {
    
    Timer timer = new Timer();
    BroadcastReceiver mReceiver;

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
      //skip this for now
        /*IntentFilter filter = new IntentFilter();
        filter.addAction("action");
        mReceiver = new MyReceiver();
        registerReceiver(mReceiver, filter);*/
    }

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {

        Log.d("message","onStartCommand Lunched");
        //things

            timer.schedule(new TimerTask() {
                public void run() {
                  
                  //things 
            }, delay,period);


    //return START_STICKY;
        flags=START_STICKY;
    return super.onStartCommand(intent, flags, startId);

    }

    @Override
    public void onDestroy() {
        Log.d("message","onDestroy Lunched");
        timer.cancel();
        //unregisterReceiver(mReceiver);
        super.onDestroy(); } 


    // use this as an inner class like here or as a top-level class
    public class MyReceiver extends BroadcastReceiver {

        @Override
        public void onReceive(Context context, Intent intent) {
            // do something
            Log.d("RECEIVER","onReceive lunched");
            //things
        }
        // constructor
        public MyReceiver(){ }
    }
}