detect "Allow Notifications" is on/off for iOS8

Method enabledRemoteNotificationTypes is deprecated since iOS8.

To check remote notifications status in iOS8 you can call

[[UIApplication sharedApplication] isRegisteredForRemoteNotifications];

it will return NO if user disable notifications in Settings. Documentation on isRegisteredForRemoteNotifications

Or you can retrieve all current notification settings:

[[UIApplication sharedApplication] currentUserNotificationSettings];

Documentation on currentUserNotificationSettings

Swift 3+

let isRegisteredForLocalNotifications = UIApplication.shared.currentUserNotificationSettings?.types.contains(UIUserNotificationType.alert) ?? false

Swift 2.3

let isRegisteredForLocalNotifications = UIApplication.sharedApplication().currentUserNotificationSettings()?.types.contains(UIUserNotificationType.Alert) ?? false

I apologize for this answer/comment if it is in the wrong place. I am REALLY new at iOS programming and have never posted to stack overflow before. I think this should actually be a comment, but without a 50 rating I am not allowed. I also apologize if the explanation is somewhat rudimentary, but again, kind of new :).

I also wished to test for whether a user has changed what notifications are allowed/required by my app after the initial request. After trying to decipher the Apple documentation (the writers at Apple are either much smarter than I am, or the documentation is purposely obscure) and doing a bit of testing I tested for the value of

[[UIApplication sharedApplication] currentUserNotificationSettings].hash.

I believe that this returns a three bit hash value where bit one is for Banner notifications, bit 2 is for Sound notifications, and bit 3 is for Alert notifications.

So...

000 = 0 = no notifications.001 = 1 = only banner,010 = 2 = only sound,011 = 3 = sound and banner, no alert100 = 4 = only alert notificationsand so on until,111 = 7 = all notifications on.

This also shows 0 if Allow Notifications is turned off in the Settings app.Hope this helps.