https://stackoverflow.com/questions/46457733/how-to-get-notification-authorization-status-in-swift-3
т.е. както так- писал в блокноте
procedure TForm1.FormCreate(Sender: TObject);
begin
TUNUserNotificationCenter.OCClass.currentNotificationCenter.getNotificationSettingsWithCompletionHandler(OnNotificationSettings);
end;
procedure TForm1.OnNotificationSettings(NotificationSettings: UNNotificationSettings);
begin
NotificationSettings.authorizationStatus;
end;