Technicalisto

How to Add Local Push Notification With timeInterval & Test On Simulator

1. In Project Target ( Signing & Capapilities ) Add Capapility :

   1. Background Modes : Check -> [ Bachground fetch , Remote notifications , Background processing ]
   
   2. Push Notification
   

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2. In App Delegate Import :

   import UserNotifications
   
   import BackgroundTasks
   

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3. Add Settings of Push Notification ->

|. Define gcmMessageIDKey :

    let gcmMessageIDKey = "gcm.message_id"

||. Add Delegate of UNUserNotificationCenterDelegate for handle message :

    // [START ios_10_message_handling]
    @available(iOS 10, *)
    extension AppDelegate : UNUserNotificationCenterDelegate {

        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)")
            }

            completionHandler([.alert,.badge, .sound])

            print(userInfo)

        }

        func userNotificationCenter(_ center: UNUserNotificationCenter,
                            didReceive response: UNNotificationResponse,
                            withCompletionHandler completionHandler: @escaping () -> Void) {
            let userInfo = response.notification.request.content.userInfo

            print(userInfo)

            completionHandler()
        }
      }

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4. In App Delegate add method :

   func applicationDidEnterBackground(_ application: UIApplication) {
       application.beginBackgroundTask {} // Allows to run background tasks
   }
   

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5. In App Delegate Inside method didFinishLaunchingWithOptions add :

   application.beginBackgroundTask(withName: "showNotification", expirationHandler: nil)
   
   let center = UNUserNotificationCenter.current()
   
   center.delegate = self as! UNUserNotificationCenterDelegate
   

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6. Call this method to take a permission for use push notification :

   func TakeLocalNotificationPermisiion(){
      UNUserNotificationCenter.current().requestAuthorization(options: [.alert , .badge , .sound]) { (granted, error) in
         if granted {
             print("User gave permissions for local Notifications")
         }else{ 
   
         }
     }
     }
   

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7. You Can Test By The following lines :

    let content = UNMutableNotificationContent()
    
    content.title = "Technicalisto"
    
    content.subtitle = "Test Local Push Notification On Simulator"
    
    content.sound = UNNotificationSound.default
   
    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 1, repeats: false)
   
    let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
   
    UNUserNotificationCenter.current().add(request)
   

Thanks

GitHub

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