title: Accept notifications later than the first launch
body: <p>In my application, user can use notifications sent from the app. At first launch, there is an alert with refuse or allow notifications made in the appdelegate.
  If I accept notifications, all is OK.
  I made a screen / viewcontroller in which user can accept or no notification with a switch. If user refused notifications at first launch, how can I access to the controls in appdelegate like if I was at first launch ?</p>
  
  <p>Thanks</p>