iphone - Push Notification ON or OFF Checking in iOS

Question

I want to check "Push Notification option" in iOS device, any time if the application is running (or ON from resume mode). I use the following code to check, if the option is OFF:

-(void)PushNotificationServiceChecking
{
    UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];

    if (types == UIRemoteNotificationTypeNone)
    {
        NSString *msg = @"Please press ON to enable Push Notification";
        UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Push Notification Service Disable" message:msg delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"ON", nil];
        alert.tag = 2;
        [alert show];
    }
}

Then i use the following code for going to the "Settings tab >> Notification center", so that user can on it manually :

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (alertView.tag == 2)
    {
        if (buttonIndex == 0)
        {
            // this is the cancel button
        }
        else if (buttonIndex == 1)
        {
            [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeBadge|UIRemoteNotificationTypeSound|UIRemoteNotificationTypeAlert)];
        }
    }

}

But, now the problem that I am facing is, it only appears at the 1st time after launching the application. It works as I want. But after that, if I turn OFF the "Push Notification option" from "settings" it gives me no "Alert Message".

Answer 1

In iOS 8 you can now use:

[[UIApplication sharedApplication] isRegisteredForRemoteNotifications];

And to check how the settings are setup you could use:

[[UIApplication sharedApplication] currentUserNotificationSettings];