iOS with Firebase notification, all not working - ios

Question

What ever I do the notification is not received.
Sending to Android is going fine, sending to iOS is a failure
I am sending from Firebase Console
I am not receiving foreground or background notification
here is the AppDelegate.swift
import UIKit
import Firebase
import FirebaseMessaging
import UserNotifications
#UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
if #available(iOS 10.0, *) {
UIView.appearance().semanticContentAttribute = .forceLeftToRight
}
FirebaseApp.configure()
// [START set_messaging_delegate]
Messaging.messaging().delegate = self as? MessagingDelegate
// [END set_messaging_delegate]
//create the notificationCenter
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)
//FIRMessaging.messaging().remoteMessageDelegate = self
} else {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
}
application.registerForRemoteNotifications()
return true
}
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
var token = ""
for i in 0..<deviceToken.count {
token = token + String(format: "%02.2hhx", arguments: [deviceToken[i]])
}
print("Registration succeeded! Token: ", token)
let topicName = "/topics/ChaclateOnMobile"
Messaging.messaging().subscribe(toTopic: topicName)
}
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
print("Registration failed! \(error)")
}
// Firebase notification received
#available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: #escaping (_ options: UNNotificationPresentationOptions) -> Void) {
// custom code to handle push while app is in the foreground
print("Handle push from foreground\(notification.request.content.userInfo)")
let dict = notification.request.content.userInfo["aps"] as! NSDictionary
let d : [String : Any] = dict["alert"] as! [String : Any]
let body : String = d["body"] as! String
let title : String = d["title"] as! String
print("Title:\(title) + body:\(body)")
self.showAlertAppDelegate(title: title,message:body,buttonTitle:"ok",window:self.window!)
}
#available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: #escaping () -> Void) {
// if you set a member variable in didReceiveRemoteNotification, you will know if this is from closed or background
print("Handle push from background or closed\(response.notification.request.content.userInfo)")
}
func showAlertAppDelegate(title: String,message : String,buttonTitle: String,window: UIWindow){
let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.alert)
alert.addAction(UIAlertAction(title: buttonTitle, style: UIAlertActionStyle.default, handler: nil))
window.rootViewController?.present(alert, animated: false, completion: nil)
}
// Firebase ended here
}

Answer 1

Check if you are using the correct token for sending notifications.
Have you registered your app to receive Push Notifications?
Check if you have implemented proper methods in AppDelegate.
When the app is not running, the notification is received in didFinishLaunchingWithOptions.
Add this to didFinishLaunchingWithOptions in your code:
if let notification = launchOptions?[.remoteNotification] as? [String: AnyObject]
{
//Your code
}
When your app is in background/foreground, the notification is received in didReceiveRemoteNotification
func application(
_ application: UIApplication,
didReceiveRemoteNotification userInfo: [AnyHashable : Any],
fetchCompletionHandler completionHandler: #escaping (UIBackgroundFetchResult) -> Void)
{
//Your code
}