How to handle localNotifications when app is closed

Question

I've searched in all questions here but no solution worked.

I scheduled localNotifications with a userInfo option. When app is in foreground, the notification arrived and a can handle perfectly with this function that system calls by itself.

• For local notifications

  func application(_ application: UIApplication, didReceive notification: UILocalNotification) {
  
      if application.applicationState == .active {
          return
      }
  
      //My implementation
  }
  

• For remote notifications

  func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable : Any]) {
  
      if application.applicationState == .active {
          return
      }
  
      //My implementation
  }
  

But the problem is, when app is closed, this functions are not called and I can't handle the data that I need.

I've tried get userInfo in that function in appDelegate:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
    if let localUserInfo = launchOptions?[UIApplicationLaunchOptionsKey.localNotification] as? [AnyHashable: Any] {

        // My implementation
    } else if let remoteUserInfo = launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] as? [AnyHashable: Any] {

        // My implementation
    }
    return true
}

But.. Didn't work...

Someone could help me please?

Thanks in advance.

Answer 1

Have you registered for notifications? In didFinishLaunchingWithOptions():

    // Register Notifications
            UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge], completionHandler: { granted, error in

                if granted {
                    print("User notifications are allowed")
                } else {
                    print("User notifications are NOT allowed")
                }
            })
            application.registerForRemoteNotification()
            UNUserNotificationCenter.current().delegate = self

Then you should catch local notifications in UNUserNotificationCenterDelegate method:

extension AppDelegate: UNUserNotificationCenterDelegate {

    func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {

        completionHandler()
    }

}