Writing handler for UIAlertAction

Question

I\'m presenting a UIAlertView to the user and I can\'t figure out how to write the handler. This is my attempt:

let alert = UIAlertController(ti         


        

Answer 1

create alert, tested in xcode 9

let alert = UIAlertController(title: "title", message: "message", preferredStyle: UIAlertControllerStyle.alert)
alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.default, handler: self.finishAlert))
self.present(alert, animated: true, completion: nil)

and the function

func finishAlert(alert: UIAlertAction!)
{
}