UIAlertController的写法

by 伍雪颖

@IBAction func showAlert(sender: AnyObject) {
        let alertController = UIAlertController(title: "Default Style", message: "A standard alert.", preferredStyle: .Alert)

        let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel) { (action) in

        }
        alertController.addAction(cancelAction)

        let destroyAction = UIAlertAction(title: "Destroy", style: .Destructive) { (action) in
            println(action)
        }
        alertController.addAction(destroyAction)

        let OKAction = UIAlertAction(title: "OK", style: .Default) { (action) in

        }
        alertController.addAction(OKAction)

        self.presentViewController(alertController, animated: true) {

        }
    }