func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Use Firebase library to configure APIs
FirebaseApp.configure()
self.registerForPushNotifications(application: application)
Messaging.messaging().delegate = self
if let token = InstanceID.instanceID().token() { NSLog("FCM TOKEN : (token)") DataModel.sharedInstance.onSetUserFCMStringToken(FCM: token) self.connectToFcm() } if launchOptions != nil { //opened from a push notification when the app is closed _ = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [AnyHashable: Any] ?? [AnyHashable: Any]() } else { //opened app without a push notification. } return true}@available（iOS 10，*）
extension AppDelegate: UNUserNotificationCenterDelegate {// iOS10+, called when presenting notification in foregroundfunc userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) { let userInfo = notification.request.content.userInfo NSLog("[UserNotificationCenter] willPresentNotification: (userInfo)") //TODO: Handle foreground notification completionHandler([.alert])}// iOS10+, called when received response (default open, dismiss or custom action) for a notificationfunc userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) { let userInfo = response.notification.request.content.userInfo NSLog("[UserNotificationCenter] didReceiveResponse: (userInfo)") //TODO: Handle background notification completionHandler()}}extension AppDelegate : MessagingDelegate {//MARK: FCM Token Refreshedfunc messaging(_ messaging: Messaging, didRefreshRegistrationToken fcmToken: String) { NSLog("[RemoteNotification] didRefreshRegistrationToken: (fcmToken)")}// Receive data message on iOS 10 devices while app is in the foreground.func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) { NSLog("remoteMessage: (remoteMessage.appData)")}}//Register for push notification.func registerForPushNotifications(application: UIApplication) { if #available(iOS 10.0, *) { let center = UNUserNotificationCenter.current() center.delegate = self center.requestAuthorization(options: [.alert,.sound]) { (granted, error) in if error == nil{ DispatchQueue.main.async(execute: { application.registerForRemoteNotifications() }) } } } else { let settings = UIUserNotificationSettings(types: [.alert,.sound], categories: nil) application.registerUserNotificationSettings(settings) application.registerForRemoteNotifications() } // Add observer for InstanceID token refresh callback. NotificationCenter.default.addObserver(self, selector: #selector(self.tokenRefreshNotification), name: NSNotification.Name.InstanceIDTokenRefresh, object: nil)}@objc func tokenRefreshNotification(_ notification: Notification) { print(#function) if let refreshedToken = InstanceID.instanceID().token() { NSLog("Notification: refresh token from FCM -> (refreshedToken)") } // Connect to FCM since connection may have failed when attempted before having a token. connectToFcm()}func connectToFcm() { // Won't connect since there is no token guard InstanceID.instanceID().token() != nil else { NSLog("FCM: Token does not exist.") return } Messaging.messaging().shouldEstablishDirectChannel = true}func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) { NSLog("Notification: Unable to register for remote notifications: (error.localizedDescription)")}// This function is added here only for debugging purposes, and can be removed if swizzling is enabled.// If swizzling is disabled then this function must be implemented so that the APNs token can be paired to the InstanceID token.func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) { Messaging.messaging().apnsToken = deviceToken}// iOS9, called when presenting notification in foregroundfunc application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) { NSLog("didReceiveRemoteNotification for iOS9: (userInfo)")}func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any], fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {}
