How to know when the user disables push notifications on iOS7?

Question

I am developing an app that requires push notifications. I would like to detect when it is enabled by the user and when it is not.

It is a simple thing on iOS8 :

UIApplication *application = [UIApplication sharedApplication];
BOOL enabled = application.isRegisteredForRemoteNotifications;

But how to do that on iOS7?

Answer 1

Simple, for pre iOS 8:

UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if (types == UIRemoteNotificationTypeNone) {
  // disabled
}