CODEWITHSUNDEEP
ios
paceysnail
paceysnail

Reputation: 31

iOS 8+ Remote notification capability always enabled

For iOS >= 8, only

In my AppDelegate, I register for user notifications as follows:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    NSLog(@"didFinishLaunchingWithOptions called");

    // iOS >= 8.0

    // register to receive user notifications
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];

    ...
}

Upon completion, I register for remote notification as follows:

- (void)application:(UIApplication *)application  didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
{
    NSLog(@"didRegisterUserNotificationSettings called");

    //register to receive remote notifications
    [application registerForRemoteNotifications];
}

And upon completion, I check to see whether the app is registered

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {

    NSLog(@"didRegisterForRemoteNotificationsWithDeviceToken called");

    BOOL pushNotificationOnOrOff = [[UIApplication sharedApplication] isRegisteredForRemoteNotifications]; // always returns TRUE
}

But app always indicates that push notification is enabled, even when the user has explicitly set the app's remote notification capability off (via the notification permissions alert that appears after first time installation of the app, or via app settings.)

I have set the app's Background Modes / Remote Notifications to TRUE. I have been debugging on an actual device (tethered via USB cable) compiled with a development certificate.

Help, I've been battling this for hours.

Upvotes: 3

Views: 321

Answers (1)

ewiinnnnn
ewiinnnnn

Reputation: 995

This seems to be a bug, I also discovered the same behaviour on iPhone 6, iOS 8.1.2.

[[UIApplication sharedApplication] isRegisteredForRemoteNotifications] always returns TRUE even if user declined the push notification permission (via the alert view) or by manually disabling the notification via Settings.app > Notifications.

After some research I discovered that if you have Background App Refresh enabled for the app, then [[UIApplication sharedApplication] isRegisteredForRemoteNotifications] will always returns TRUE.

When Background App Refresh set to FALSE then [[UIApplication sharedApplication] isRegisteredForRemoteNotifications] returns the correct value.

As a workaround, you can evaluate the [[UIApplication sharedApplication] currentUserNotificationSettings].types to determine whether the push notification is allowed or not.

typedef NS_OPTIONS(NSUInteger, UIUserNotificationType) {
    UIUserNotificationTypeNone    = 0,      // the application may not present any UI upon a notification being received
    UIUserNotificationTypeBadge   = 1 << 0, // the application may badge its icon upon a notification being received
    UIUserNotificationTypeSound   = 1 << 1, // the application may play a sound upon a notification being received
    UIUserNotificationTypeAlert   = 1 << 2, // the application may display an alert upon a notification being received
} NS_ENUM_AVAILABLE_IOS(8_0);

Hope this helps.

Upvotes: 5

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