Receive notification

AppDelegate.m

- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))completionHandler {
  
    NSLog(@"Notification received");
    completionHandler(UIBackgroundFetchResultNewData);
}
- (void)userNotificationCenter:(UNUserNotificationCenter *)center willPresentNotification:(UNNotification *)notification withCompletionHandler:(void (^)(UNNotificationPresentationOptions result))completionHandler {
  
    NSLog(@"Foreground: Notification received");
    completionHandler(UNNotificationPresentationOptionAlert + UNNotificationPresentationOptionSound + UNNotificationPresentationOptionBadge);
}