AppDelegate-1.swift

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    // Override point for customization after application launch.

    //Push Notification Authorization
    UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { (granted, error) in

    }
    UIApplication.shared.registerForRemoteNotifications()
    // 讓 App 在前景狀態下收到通知
    UNUserNotificationCenter.current().delegate = self

    //return true
    return FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions:launchOptions)
}
func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
    return FBSDKApplicationDelegate.sharedInstance().application(application, open: url, sourceApplication: sourceApplication, annotation: annotation)
}