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Xamarin - Best practices for migrating from UILocalNotification to User Notifications framework
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  UserNotifications
  • You will have to import UserNotifications 
     @import UserNotifications;

    • 2.Request authorization for localNotification

    let center = UNUserNotificationCenter.current()
center.requestAuthorization([.alert, .sound]) { (granted, error) in
    // Enable or disable features based on authorization.
}
  • Now we will update the application icon badge number 
     @IBAction  func triggerNotification(){
 let content = UNMutableNotificationContent()
 content.title = NSString.localizedUserNotificationString(forKey: "Tom said:", arguments: nil)
 content.body = NSString.localizedUserNotificationString(forKey: "Hello Mikeļ¼Let's go.", arguments: nil)
 content.sound = UNNotificationSound.default()
 content.badge = UIApplication.shared().applicationIconBadgeNumber + 1;
 content.categoryIdentifier = "com.mike.localNotification"
 //Deliver the notification in two seconds.
 let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 1.0, repeats: true)
 let request = UNNotificationRequest.init(identifier: "TwoSecond", content: content, trigger: trigger)

 //Schedule the notification.
 let center = UNUserNotificationCenter.current()
 center.add(request)
 }

 @IBAction func stopNotification(_ sender: AnyObject) {
 let center = UNUserNotificationCenter.current()
 center.removeAllPendingNotificationRequests()
 }



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    https://develop.horje.com/learn/1434/reference

     

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