Swift 3: ios10 Local notifications

ios10LocalNotifications.swift

func showPushNotification(title: String, details: String) {
  if #available(iOS 10.0, *) {
    let interval = TimeInterval(1)
    let trigger = UNTimeIntervalNotificationTrigger(timeInterval: interval, repeats: false)
    let content = UNMutableNotificationContent()
    content.title = title
    content.body = details
    let req = UNNotificationRequest(identifier: "localPushNotification", content: content, trigger: trigger)
    let center = UNUserNotificationCenter.current()
    center.getNotificationSettings(completionHandler: { settings in
      switch settings.authorizationStatus {
      case .notDetermined:
        center.requestAuthorization(options: [.alert, .sound], completionHandler: { ok, err in
            if let err = err {
                print(err)
                return
            }
            if ok {
                center.add(req, withCompletionHandler: nil)
            }
        })
      case .denied: break
      case .authorized:
        center.add(req, withCompletionHandler: nil)
        break
      }
    })

  } else {
    // handle old iOS versions
  }
}

// App Delegate

@available(iOS 10.0, *)
extension AppDelegate: UNUserNotificationCenterDelegate {
  func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
    if response.actionIdentifier == UNNotificationDefaultActionIdentifier {
      // do stuff
      completionHandler()
    }
  }

  func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    completionHandler([.sound, .alert])
  }
}