How to make android app send notification if you don't open it for a day?

Question

Hello!!!

I try to make my app send notifications if isn't used for a day (or more time) but I'm not able to make it. I tried to implement it with code below but not worked. Any idea what I have to add to my code or how to make this possible?

ActivityMain.java

public class MainActivity extends AppCompatActivity {
    private static final int NOTIFICATION_REMINDER_DAY = 3;
...
protected void onCreate(Bundle savedInstanceState) {
...
        Intent notifyIntent = new Intent(this,NotificationReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast
                (context, NOTIFICATION_REMINDER_DAY, notifyIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
        alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,  System.currentTimeMillis(),
                1000 * 60 * 60 * 24, pendingIntent);
       

NotificationIntentService.java

  protected void onHandleIntent(Intent intent) {
        Notification.Builder builder = new Notification.Builder(this);
        builder.setContentTitle("D4rK Cleaner!!!");
        builder.setContentText("You didn't cleaned your phone for some time. Try now!");
        builder.setSmallIcon(R.drawable.ic_splash_screen);
        Intent notifyIntent = new Intent(this, MainActivity.class);
        @SuppressLint("UnspecifiedImmutableFlag") PendingIntent pendingIntent = PendingIntent.getActivity(this, 2, notifyIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        //to be able to launch your activity from the notification
        builder.setContentIntent(pendingIntent);
        Notification notificationCompat = builder.build();
        NotificationManagerCompat managerCompat = NotificationManagerCompat.from(this);
        managerCompat.notify(NOTIFICATION_ID, notificationCompat);

NotificationReciver.java

  public void onReceive(Context context, Intent intent) {
        Intent intent1 = new Intent(context, NotificationIntentService.class);
        context.startService(intent1);

Thanks in advance!