Android studio 设置通知服务在每个月的第一天运行

Question

我有以下通知 Class。

我从 Home Activity 的 onStop 方法调用 class。

然后它发出一个通知

目前 class 被编程为每 50 秒发送一次通知。

是否可以编辑 class 以便仅在特定时间发送通知 - 比如每个月的第一天早上 8 点？

public class ClassNotificationService extends Service {

    public static final String NOTIFICATION_CHANNEL_ID = "10001" ;
    private final static String default_notification_channel_id = "default" ;
    Timer timer ;
    TimerTask timerTask ;
    String TAG = "Timers" ;
    int Your_X_SECS = 50 ;

    @Override
    public IBinder onBind (Intent arg0) {
        return null;
    }

    @Override
    public int onStartCommand (Intent intent , int flags , int startId) {
        Log. e ( TAG , "onStartCommand" ) ;
        super .onStartCommand(intent , flags , startId) ;
        startTimer() ;
        return START_STICKY ;
    }

    @Override
    public void onCreate () {
        Log. e ( TAG , "onCreate" ) ;
    }

    @Override
    public void onDestroy () {
        Log. e ( TAG , "onDestroy" ) ;
        stopTimerTask() ;
        super .onDestroy() ;
    }

    //we are going to use a handler to be able to run in our TimerTask
    final Handler handler = new Handler() ;
    public void startTimer () {
        timer = new Timer() ;
        initializeTimerTask() ;
        timer.schedule( timerTask , 5000 , Your_X_SECS * 1000 ) ; //
    }


    public void stopTimerTask () {
        if ( timer != null ) {
            timer .cancel() ;
            timer = null;
        }
    }


    public void initializeTimerTask () {
        timerTask = new TimerTask() {
            public void run () {
                handler .post( new Runnable() {
                    public void run () {
                        createNotification() ;
                    }
                }) ;
            }
        } ;
    }


    private void createNotification () {

        NotificationManager mNotificationManager = (NotificationManager) getSystemService( NOTIFICATION_SERVICE ) ;
        NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(getApplicationContext() , default_notification_channel_id ) ;
        mBuilder.setContentTitle( "My Notification" ) ;
        mBuilder.setContentText( "Notification Listener Service Example" ) ;
        mBuilder.setTicker( "Notification Listener Service Example" ) ;
        mBuilder.setSmallIcon(R.drawable. ic_launcher_foreground ) ;
        mBuilder.setAutoCancel( true ) ;
        
        if (android.os.Build.VERSION. SDK_INT >= android.os.Build.VERSION_CODES. O ) {
            int importance = NotificationManager. IMPORTANCE_HIGH ;
            NotificationChannel notificationChannel = new NotificationChannel( NOTIFICATION_CHANNEL_ID , "NOTIFICATION_CHANNEL_NAME" , importance) ;
            mBuilder.setChannelId( NOTIFICATION_CHANNEL_ID ) ;
            assert mNotificationManager != null;
            mNotificationManager.createNotificationChannel(notificationChannel) ;
        }
        assert mNotificationManager != null;
        mNotificationManager.notify(( int ) System. currentTimeMillis () , mBuilder.build()) ;
    }


}