Как называется этот элемент в swift?

func showSimpleAlert() {
        let alert = UIAlertController(title: "Sign out?", message: "You can always access your content by signing back in",         preferredStyle: UIAlertControllerStyle.alert)

        alert.addAction(UIAlertAction(title: "Cancel", style: UIAlertActionStyle.default, handler: { _ in
            //Cancel Action
        }))
        alert.addAction(UIAlertAction(title: "Sign out",
                                      style: UIAlertActionStyle.default,
                                      handler: {(_: UIAlertAction!) in
                                        //Sign out action
        }))
        self.present(alert, animated: true, completion: nil)
    }

func showSimpleActionSheet(controller: UIViewController) {
        let alert = UIAlertController(title: "Title", message: "Please Select an Option", preferredStyle: .actionSheet)
        alert.addAction(UIAlertAction(title: "Approve", style: .default, handler: { (_) in
            print("User click Approve button")
        }))

        alert.addAction(UIAlertAction(title: "Edit", style: .default, handler: { (_) in
            print("User click Edit button")
        }))

        alert.addAction(UIAlertAction(title: "Delete", style: .destructive, handler: { (_) in
            print("User click Delete button")
        }))

        alert.addAction(UIAlertAction(title: "Dismiss", style: .cancel, handler: { (_) in
            print("User click Dismiss button")
        }))

        self.present(alert, animated: true, completion: {
            print("completion block")
        })
    }