iOS - Check for push notification support in the app

Question

I added Push notifications to my application. And my application works based on push notifications. When the app runs for the first time, it is showing alert whether user wants

Answer 1

You can only check whether user have selected to receive push-notifications:

UIRemoteNotificationType status = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if (status == UIRemoteNotificationTypeNone)
{
    NSLog(@"User doesn't want to receive push-notifications");
}