iOS Push Notification - ios

Question

I use APNS and it's work fine on iOS 9.
With the new push API changes on iOS10 i cant register for push notification so i insert the next changes:
Enable push notification in the target capabilities tab.
In didFinishLaunchingWithOptions we check the OS version and register as followed :
if (SYSTEM_VERSION_GRATERTHAN_OR_EQUALTO(#"10.0")) {
//ios 10 Notifiction
UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
center.delegate = self;
[center requestAuthorizationWithOptions:(UNAuthorizationOptionSound | UNAuthorizationOptionAlert | UNAuthorizationOptionBadge) completionHandler:^(BOOL granted, NSError * _Nullable error){
if( !error ){
[[UIApplication sharedApplication] registerForRemoteNotifications];
NSLog(#"iOS 10 push notification register successfully ");
}
}];
} else {
// iOS 8-9 Notifications
[[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
[[UIApplication sharedApplication] registerForRemoteNotifications];
NSLog(#"iOS 9 push notification register successfully ");
}
With this changes I manage to perform registration in iOS 9 and iOS 10 but I have couple of problems :
Once I enable the push notification in the target capabilities tab the push notification stop working on iOS 9 although the registration was complete successfully .
The push doesn’t work on iOS 10 at all although the registration was complete successfully .
Please keep in mind that if I turn off the push notification in the target capabilities tab (with the same code) the push return to work on iOS 9 but I cant register for APNS on iOS 10.

Answer 1

if #available(iOS 8.0, *) {
let settings: UIUserNotificationSettings = UIUserNotificationSettings (types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
application.registerForRemoteNotifications()
}else {
let types: UIRemoteNotificationType = [.alert, .badge, .sound]
application.registerForRemoteNotifications(matching: types)
}