UIButton in Swift is not registering touches

Question

I'm trying to create a UIButton using Swift. It compiles fine and I can see my button in the simulator, but when I click it, nothing happens. This is the code I am using:

let settings = UIButton() settings.addTarget(self, action: "touchedSet:", forControlEvents: UIControlEvents.TouchUpInside) settings.setTitle("Settings", forState: .Normal) settings.frame = CGRectMake(0, 530, 150, 50) scrollView.addSubview(settings) 

In the same class, here is the function 'touchedSet':

func touchedSet(sender: UIButton!) {     println("You tapped the button") } 

I'm using the simulator as I don't have an iOS 8.0 device, could that be the problem?

Thanks!

Answer 1

I see it is an old question but I just faced very similar problem yesterday. My buttons were highlighted on touch but not firing the action.

I have two view controllers. One view covers the others view and button is on the top view.

eg.

• Rootviewcontroller has back view

• Topviewcontroller has top view

The button on top view does not call the action if I don't add the topviewcontroler as childviewcontroller of the rootviewcontroller. After adding the topviewcontroller as childviewcontroller it started to working.

So in short: just try to add the view controller of buttons superview as childviewcontroller to the parent views viewcontroller with the following method

func addChildViewController(_ childController: UIViewController)