swift UIActionSheet sample

ViewController.swift

//
//  ViewController.swift
//

import UIKit

class ViewController: UIViewController, UIActionSheetDelegate {
    @IBAction func tapButton(sender : AnyObject) {
        var sheet: UIActionSheet = UIActionSheet();
        let title: String = "Please choose a course";
        sheet.title  = title;
        sheet.delegate = self;
        sheet.addButtonWithTitle("Cancel");
        sheet.addButtonWithTitle("A course");
        sheet.addButtonWithTitle("B course");
        sheet.addButtonWithTitle("C course");
        sheet.cancelButtonIndex = 0;
        sheet.showInView(self.view);
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    func actionSheet(sheet: UIActionSheet!, clickedButtonAtIndex buttonIndex: Int) {
        println("index %d %@", buttonIndex, sheet.buttonTitleAtIndex(buttonIndex));
    }
}

obrigado