iOS Firebase notifications with data

Question

I am using FCM to send push notifications, and i am using the following method in AppDelegate to receive data sent with the notification.

func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
                     fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {




        if let firstMessage = userInfo["url"] as? String, let secondMessage = userInfo["category"] as? String {
            print("message1: \(firstMessage)")
            print("message2: \(secondMessage)")

            let mainStoryBoard: UIStoryboard = UIStoryboard(name: "Main", bundle: nil)
            let mainVC = mainStoryBoard.instantiateViewController(withIdentifier: "MainViewController") as! MainViewController

            mainVC.url = firstMessage
            mainVC.category = secondMessage
            self.window?.rootViewController = mainVC



        }else {

            print("no data received!")
        }



        completionHandler(UIBackgroundFetchResult.newData)
    }

The data is successfully received when app in foreground or in background, but when app is terminated (killed), that notification is received but with no data, as i understand the "didReceiveRemoteNotification", is not called when app is terminated and instead i have to write code in "didFinishLaunchingWithOptions" to display data received with Push notifications. Any idea how to do so? Thanks

drulabs drulabs · Accepted Answer · 2017-08-20T03:16:36

iOS apps can't received data payload when app is terminated, it is a limitation of iOS. Instead what you can do is set both notification and data payload in FCM and. So if your app is terminated, you still see a notification, and when user taps on the notification, you can receive data payload in didReceiveRemoteNotification function as userInfo, like you are getting when app is in foreground.

iOS Firebase notifications with data

1 Answers