Notification in swift 4.2

notification.swift

// Notification in swift 4.2
// Tested on MacOS 10.14

func showNotification(title: String, body: String, icon: NSImage = nil) -> Void {
  let notification = NSUserNotification()
  
  notification.title = title
  notification.subtitle = body
  
  if ( icon !== nil ) {  
    notification.contentImage = icon
  }

  notification.soundName = NSUserNotificationDefaultSoundName

  NSUserNotificationCenter.default.delegate = self
  NSUserNotificationCenter.default.deliver(notification)
}


extension ViewController: NSNotificationCenterDelegate {
  func userNotificationCenter(_ center: NSUserNotificationCenter, shouldPresent notification: NSUserNotification) -> Bool {
          return true
  }
}