ios 注册通知方式的变化

 

ios 6:

ios 8:

ios 10:

   UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];

//        center.delegate = self;

        [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert) completionHandler:^(BOOL granted, NSError * _Nullable error) {

        }];