FCM push notification not showing when app is open in swift 3 - swift

Question

I want to show fcm message any time if my app is open or not open.I want to catch message and save core data.when my app is opened I will get my message but notification alert doesn't show. But when I close my app it shows my message but I did not get my message in background.. here is my appDelegate
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate , UNUserNotificationCenterDelegate,MessagingDelegate{
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
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: {_, _ in })
// For iOS 10 data message (sent via FCM
Messaging.messaging().remoteMessageDelegate = self
} else {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
}
application.registerForRemoteNotifications()
FirebaseApp.configure()
return true
}
//MARK: FCM Token Refreshed
func messaging(_ messaging: Messaging, didRefreshRegistrationToken fcmToken: String) {
// FCM token updated, update it on Backend Server
}
func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
print("Messaging",messaging)
print("remoteMessage*******************",remoteMessage)
}
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: #escaping (_ options: UNNotificationPresentationOptions) -> Void) {
print("Handle push from foreground")
// custom code to handle push while app is in the foreground
print("\(notification.request.content.userInfo)")
if UIApplication.shared.applicationState == .active { // In iOS 10 if app is in foreground do nothing.
print("active****")
completionHandler([])
} else { // If app is not active you can show banner, sound and badge.
print("Not active****")
completionHandler([.alert, .badge, .sound])
}
}
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: #escaping () -> Void) {
print("Handle push from background or closed")
print("\(response.notification.request.content.userInfo)")
}
func tokenRefreshNotification(notification: NSNotification) {
let refreshedToken = InstanceID.instanceID().token()
// print("fcm**************************","Dhruw: Connected to FCM. Token : \(String(describing: refreshedToken))")
var fcm_token = String(describing: refreshedToken!)
print("fcm toker********",fcm_token);
connectToFCM()
}
func connectToFCM() {
Messaging.messaging().shouldEstablishDirectChannel = true
}
func applicationWillResignActive(_ application: UIApplication) {
}
func applicationDidEnterBackground(_ application: UIApplication) {
}
func applicationWillEnterForeground(_ application: UIApplication) {
}
func applicationDidBecomeActive(_ application: UIApplication) {
}
func applicationWillTerminate(_ application: UIApplication) {
self.saveContext()
}
// MARK: - Core Data stack
lazy var persistentContainer: NSPersistentContainer = {
let container = NSPersistentContainer(name: "Finjo_Expense_Management")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any], fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void) {
guard let messageId = userInfo["gcm.message_id"]
else {
return
}
print(messageId)
print("did*****",userInfo);
let aps = userInfo[AnyHashable("aps")] as? NSDictionary
var message = aps?["alert"] as! String;
print("message",message)
}
// Called when APNs has assigned the device a unique token
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
// Convert token to string
let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
// Print it to console
print("APNs device token: \(deviceTokenString)")
//09256B251D3BBEAA50949067DF40AB75E5D2668170AB0C3B0D310205F2876C32
// Persist it in your backend in case it's new
}
// Called when APNs failed to register the device for push notifications
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
// Print the error to console (you should alert the user that registration failed)
print("APNs registration failed: \(error)")
}
func saveContext () {
let context = persistentContainer.viewContext
if context.hasChanges {
do {
try context.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nserror = error as NSError
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
}
}
}
}
With Advance thanks...Please help me

Answer 1

When app is open you need to set localnotification for showing notifications.. otherwise you need to show custom view.