title: how to implement multiple local notification not a single notification for swift 3
body: <p>i have use the single notification , and this is my code:
  this is for register the local notification>>></p>
  
  <pre><code>    func registerLocal() {
      let center = UNUserNotificationCenter.current()
  
      center.requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
          if granted {
              print("Yay!")
          } else {
              print("D'oh")
          }
      }
  }
  </code></pre>
  
  <p>and this function to schedule the local notification>>></p>
  
  <pre><code>func scheduleLocal() {
      registerCategories()
  
      let center = UNUserNotificationCenter.current()
  
      // not required, but useful for testing!
      center.removeAllPendingNotificationRequests()
  
      let content = UNMutableNotificationContent()
      content.title = "good morning"
      content.body = "ttt123"
      content.categoryIdentifier = "alarm"
      content.userInfo = ["customData": "fizzbuzz"]
      content.sound = UNNotificationSound.default()
  
      var dateComponents = DateComponents()
      dateComponents.hour = 23
      dateComponents.minute = 18
      let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)
  
      let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
      center.add(request)
  }
  
  func registerCategories() {
      let center = UNUserNotificationCenter.current()
      center.delegate = self
  
      let show = UNNotificationAction(identifier: "show", title: "Tell me more…", options: .foreground)
      let category = UNNotificationCategory(identifier: "alarm", actions: [show], intentIdentifiers: [])
  
      center.setNotificationCategories([category])
  }
  
  func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -&gt; Void) {
      // pull out the buried userInfo dictionary
      let userInfo = response.notification.request.content.userInfo
  
      if let customData = userInfo["customData"] as? String {
          print("Custom data received: \(customData)")
  
          switch response.actionIdentifier {
          case UNNotificationDefaultActionIdentifier:
              // the user swiped to unlock; do nothing
              print("Default identifier")
  
          case "show":
              print("Show more information…")
              break
  
          default:
              break
          }
      }
  
      // you need to call the completion handler when you're done
      completionHandler()
  }
  </code></pre>
  
  <p>now how can i use this code with the multiple local notification with iOS 10 and different times 
  thank you .</p>