How to implement local notification in Swift

The following steps will guide us on how to develop an application in Swift that implements Local Notification.

Requirements are:

  • Mac
  • Xcode6 - BetaX
  • iOS8

Steps

  1. Open xcode.
  2. Create a Single View Application, let's name it LocalNotification.
  3. Register for user notification.
    1. In the newly created project, open AppDelegate.swift
    2. Insert the lines below in: didFinishLaunchingWithOptions
    3. application.registerUserNotificationSettings(UIUserNotificationSettings(forTypes: UIUserNotificationType.Sound | UIUserNotificationType.Alert |
                  UIUserNotificationType.Badge, categories: nil
                  ))
      
  4. To show an alert view when we received a local notification, we need to override: didReceiveLocalNotification,
  5. func application(application: UIApplication, didReceiveLocalNotification notification: UILocalNotification) {
     print("received local notification")
     
     application.applicationIconBadgeNumber = 0
     
     var alert = UIAlertView()
     alert.title = "Alert"
     alert.message = notification.alertBody
     alert.addButtonWithTitle("Dismiss")
     
     alert.show()
    }
    
  6. To demo local push notification in our app, we override ViewController.swift viewDidLoad method. So open this file and paste the lines below:
  7. override func viewDidLoad() {
     super.viewDidLoad()
     // Do any additional setup after loading the view, typically from a nib.
     
     var localNotification = UILocalNotification()
     localNotification.fireDate = NSDate(timeIntervalSinceNow: 30)
     localNotification.alertBody = "Hello World"
     localNotification.timeZone = NSTimeZone.defaultTimeZone()
     localNotification.applicationIconBadgeNumber = 1
            //play a sound
     localNotification.soundName = UILocalNotificationDefaultSoundName;
     localNotification.alertAction = "View"
     
     UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
    }
    
  8. To test if our app works, open the app and let it open the view. Then open another app, or just hide our app. After 30 seconds you should received a push notification alert.
  9. Note that local notification only works on real iPhone device.
How to implement local notification in Swift How to implement local notification in Swift Reviewed by Edward Legaspi on Monday, August 18, 2014 Rating: 5

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