local notification in swift code example

Example 1: swift notifications mac

func showNotification() -> Void {
    var notification = NSUserNotification()
    notification.title = "Test from Swift"
    notification.informativeText = "The body of this Swift notification"
    notification.soundName = NSUserNotificationDefaultSoundName
    NSUserNotificationCenter.default.deliver(notification)
}

self.showNotification()

Example 2: receive notificationcenter data in swift

let imageDataDict:[String: UIImage] = ["image": image]

  // post a notification
  NotificationCenter.default.post(name: NSNotification.Name(rawValue: "notificationName"), object: nil, userInfo: imageDataDict) 
  // `default` is now a property, not a method call

 // Register to receive notification in your class
 NotificationCenter.default.addObserver(self, selector: #selector(self.showSpinningWheel(_:)), name: NSNotification.Name(rawValue: "notificationName"), object: nil)

 // handle notification
 @objc func showSpinningWheel(_ notification: NSNotification) {
        print(notification.userInfo ?? "")
        if let dict = notification.userInfo as NSDictionary? {
            if let id = dict["image"] as? UIImage{
                // do something with your image
            }
        }
 }