Update permission status after permission is allowed in delphi mobile app

Question

I am developing a Delphi mobile app on both Android and iOS platforms that requires to show notifications. When I first click on the button, it will request notification permission. However, after I click on the 'Allow' button on the dialog that prompts for permission, the notification doesn't show. I need to press the button again in order to show the notification.

Is there any way to let my application get the status immediately after I allow notification permission for the application?

Below is my prototype code:

procedure TForm1.Button3Click(Sender: TObject);
begin
  var notiCenter := TNotificationCenter.Create(nil);
  notiCenter.OnPermissionRequestResult := NotificationCenterPermissionRequestResult;
  
  if notiCenter.AuthorizationStatus <> TAuthorizationStatus.Authorized then
    notiCenter.RequestPermission;
  
  if FIsNotificationAllowed then begin
    var noti := notiCenter.CreateNotification;
    try
      noti.Name := 'Button Click';
      noti.Title := 'Button Click';
      noti.AlertBody := 'Button Click';
      notiCenter.PresentNotification(noti);
    finally
      noti.DisposeOf;
    end;
  end;
end;


procedure TForm1.NotificationCenterPermissionRequestResult(Sender: TObject;
  const AIsGranted: Boolean);
begin
  if AIsGranted then FIsNotificationAllowed := true
  else FIsNotificationAllowed := false;
end;