UIButton in Swift is not registering touches

In the simulator, sometimes it doesn't recognise the selector. There is a bug it seems. I just changed the action name (selector), and it worked.

let buttonPuzzle:UIButton = UIButton(frame: CGRectMake(100, 400, 100, 50))
buttonPuzzle.backgroundColor = UIColor.greenColor()
buttonPuzzle.setTitle("Puzzle", forState: UIControlState.Normal)
buttonPuzzle.addTarget(self, action: "buttonAction:", forControlEvents: UIControlEvents.TouchUpInside)
buttonPuzzle.tag = 22;
self.view.addSubview(buttonPuzzle)

Selector Function is Here:

func buttonAction(sender:UIButton!)
{
var btnsendtag:UIButton = sender
if btnsendtag.tag == 22 {
//println("Button tapped tag 22")
}
}

You said within the same class. Make sure that the button code itself is in the viewDidLoad() and the action be outside of it but inside the class if you are working with a view.

I can see only one problem: You have to set the `action` with `Selector` as following:

settings.addTarget(self, action: Selector("touchedSet:"), forControlEvents: UIControlEvents.TouchUpInside)

Don't forget to insert `:` if you need to pass parameters to the function.