Swift – Open an Alert box

Opening an alert in iOS is very easy. Use the UIAlertController. This creates a special ViewController that can be displayed in one of two styles Alert, or ActionSheet.

let alert = UIAlertController(title: "Send Cypher", message: nil, preferredStyle: UIAlertControllerStyle.ActionSheet)
let message = UIAlertAction(title: "Message", style: UIAlertActionStyle.Default) { (action: UIAlertAction) -> Void in
    // Do something when message is tapped
}

let email = UIAlertAction(title: "Email", style: UIAlertActionStyle.Default) { (action: UIAlertAction) -> Void in
    // Do something when email is tapped
}

let cancel = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.Cancel, handler: nil)
alert.addAction(message)
alert.addAction(email)
alert.addAction(cancel)

presentViewController(alert, animated: true, completion: nil)