FCM Push notification not working in iOS 11 - ios

Question

I need to handle push notification and that's done with a lower version of ios but in ios 11 never receive any push notification. I using Firebase Cloud Messaging. please, anyone has a solution then please share.

Answer 1

Please Check as
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 foreground
func 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 notification
func 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 Refreshed
func 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 foreground
func 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) {
}

Answer 2

Problem seems to be with
FirebaseInstanceID Version less than 1.0.9
FirebaseInstanceID Version between 2.0.1 - 2.0.3
Set your pod file as below :
For Swift 2.3 and Xcode 8 : (FirebaseInstanceID v1.1.0 gets installed)
pod 'Firebase/Core', '3.8.0'
pod 'Firebase/Messaging'
For Swift 3 and Xcode 9 :
pod 'Firebase/Core'
pod 'Firebase/Messaging'
pod 'FirebaseInstanceID', "2.0.0
I didn't want to upgrade to FirebaseInstanceID 2.0.0 to fix the issue as I wanted use Swift 2.3 only

Answer 3

I had the same problem, the issue was I was missing my APN configuration in firebase console.