Push Notifications Are Not working When I disconnect my device from Xcode

Question

I am Developing an IOS App using swift language. I have added Firebase based push notifications to my project. they works correctly when my device is attached to xcode or when i debug my app on my device. But when ever i disconnect my device from xcode or i use app without debugging push notification doesn't work. I am looking for a solution

My code in App Delegate File

In didFinishLaunchingWithOptions function

if #available(iOS 10.0, *) {
        // For iOS 10 display notification (sent via APNS)
        UNUserNotificationCenter.current().delegate = self

        let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
        UNUserNotificationCenter.current().requestAuthorization(options: authOptions,
                                                                completionHandler: { (bool, err) in

        })

    } else {

        let settings: UIUserNotificationSettings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
        application.registerUserNotificationSettings(settings)

    }

    application.registerForRemoteNotifications()
    UIApplication.shared.applicationIconBadgeNumber = 0

in didregisterdevicewithtoken function

 func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    print("APNs token retrieved: \(deviceToken)")

    // With swizzling disabled you must set the APNs token here.
    if let refreshedToken = InstanceID.instanceID().token() {
        print("InstanceID token: \(refreshedToken)")

    }
    let tokenT = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
    print(tokenT)
    guard let token = InstanceID.instanceID().token() else {return}
    AppDelegate.DEVICEID = token
    print(token)
    UserDefaults.standard.set(token, forKey: "token")

    connectToFCM()


}

And to generate notification

 func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any],
                 fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void) {
    // If you are receiving a notification message while your app is in the background,
    // this callback will not be fired till the user taps on the notification launching the application.
    // TODO: Handle data of notification

    // With swizzling disabled you must let Messaging know about the message, for Analytics
    // Messaging.messaging().appDidReceiveMessage(userInfo)

    // Print message ID.
    if let messageID = userInfo[gcmMessageIDKey] {
        print("Message ID: \(messageID)")
    }

    if let msg = userInfo["desc"] as? String
    {
        let title = userInfo["noti_title"] as? String
        createNotification(message: msg, title: title ?? "" )

    }

    // Print full message.
    print(userInfo)

    completionHandler(UIBackgroundFetchResult.newData)
}


func createNotification(message: String, title: String) {

    let content = UNMutableNotificationContent()
    content.title =  title
    content.body = message


    let triger = UNTimeIntervalNotificationTrigger(timeInterval: 2, repeats: false )
    let request = UNNotificationRequest(identifier: "TextMessage", content: content, trigger: triger)



    UNUserNotificationCenter.current().add(request, withCompletionHandler: nil)
}

UNUserNotificationCenterDelegate

extension AppDelegate : UNUserNotificationCenterDelegate {

// Receive displayed notifications for iOS 10 devices.
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification,                            withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {

    let userInfo = notification.request.content.userInfo

    if let messageID = userInfo[gcmMessageIDKey] {
        print("Message ID: \(messageID)")
    }

    print(userInfo)

    // Change this to your preferred presentation option
    completionHandler([.alert,.badge,.sound])
}


func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    let application = UIApplication.shared

    if(application.applicationState == .active){
        print("user tapped the notification bar when the app is in foreground")

        window = UIWindow(frame: UIScreen.main.bounds)
        window?.makeKeyAndVisible()

        //        let layout = UICollectionViewFlowLayout()
        window?.rootViewController = UINavigationController(rootViewController: NotificationViewController())


    }

    if(application.applicationState == .inactive)
    {
        print("user tapped the notification bar when the app is in background")
        window = UIWindow(frame: UIScreen.main.bounds)
        window?.makeKeyAndVisible()

        //        let layout = UICollectionViewFlowLayout()
        window?.rootViewController = UINavigationController(rootViewController: NotificationViewController())

    }

    /* Change root view controller to a specific viewcontroller */
    // let storyboard = UIStoryboard(name: "Main", bundle: nil)
    // let vc = storyboard.instantiateViewController(withIdentifier: "ViewControllerStoryboardID") as? ViewController
    // self.window?.rootViewController = vc

    completionHandler()
}

func connectToFCM()
{
    Messaging.messaging().shouldEstablishDirectChannel = true
}
func initializeNotificationServices() -> Void {
    let settings = UIUserNotificationSettings(types: [.sound, .alert, .badge], categories: nil)
    UIApplication.shared.registerUserNotificationSettings(settings)

    // This is an asynchronous method to retrieve a Device Token
    // Callbacks are in AppDelegate.swift
    // Success = didRegisterForRemoteNotificationsWithDeviceToken
    // Fail = didFailToRegisterForRemoteNotificationsWithError
    UIApplication.shared.registerForRemoteNotifications()

Answer 1

I have solved this problem. Now i have added production Apn certificate in firebase console and removed development apn certificate from firebase console. for those who had same issue please generate ur production apn from apple.developers and change your project scheme from debug to release in build tab.