sending a parameter argument to function through UITapGestureRecognizer selector

Question

I am making an app with a variable amount of views all with a TapGestureRecognizer. When the view is pressed, i currently am doing this

func addView(headline         


        

Answer 1

Instead of creating a generic UITapGestureRecognizer, subclass it and add a property for the headline:

class MyTapGestureRecognizer: UITapGestureRecognizer {
    var headline: String?
}

Then use that instead:

override func viewDidLoad() {
    super.viewDidLoad()

    let gestureRecognizer = MyTapGestureRecognizer(target: self, action: "tapped:")
    gestureRecognizer.headline = "Kilroy was here."
    view1.addGestureRecognizer(gestureRecognizer)
}

func tapped(gestureRecognizer: MyTapGestureRecognizer) {
    if let headline = gestureRecognizer.headline {
        // Do fun stuff.
    }
}

I tried this. It worked great.