Creating a Button using Swift

 //MARK:UIButton

    func buttonClass()

    {

        //Creating the Button

        var btn:UIButton!

        btn = UIButton(frame: CGRectMake(100, 100, 100, 30));

        

        //set Title

        btn.setTitle("Login", forState:UIControlState.Normal)

        

        //set Text Color

        btn.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal)

        

        //set Back ground Color

        btn.backgroundColor = UIColor.greenColor()

        

        //Add target

        btn.addTarget(self, action: "buttonTapped:", forControlEvents: UIControlEvents.TouchUpInside)

        

        //Add to the View

        self.view.addSubview(btn)

    }

    func buttonTapped(sender : UIButton!)

    {

        var myBtnObj = sender

        println("button tapped called")

    }