Search code examples
swiftuilabeluitapgesturerecognizeruipagecontrol

Tap gesture on UILabel beside a UIPageControl not working

I have a UILabel on both sides of a UIPageControl, as pictured below:

Screen shot

I found that tapping on the sides of the UIPageControl the dot would progress, ie not on my arrows and not triggering a method of mine. But nothing else would change, so I set isUserInteractionEnabled to false on the UIPageControl.

I connected (via UITapGestureRecognizer) another UILabel above and it launches a method fine. However the UILabels, beside the UIPageControl, will not work. NOTE: I do have isUserInteractionEnabled set to true on this element. (I even temporarily changed the element to a UIButton and it wouldn't work either - so I reverted back to my UILabel.)

So, is there a way to add a UILabel to the side of a UIPageControl that gets triggered? Alternately, can the invisible objects (while tapping on the left or right of the UIPageControl - like in my second sentence) be connected to a custom method?

UPDATE:

I've added another separate modal (same title label, buttons, but no collection view and no page control). Again it won't respond when I press the label in the centre, but I temporarily am using the title label which responses and launches my method fine.

Can anyone say why?

Solution

  • I solved the issue!

    I was declaring most variables - as well as the UILabel - in closures blocks, at the top of the class, like below:

    let myLabel: UILabel = {
{
  let view = UILabel()
  view.translatesAutoresizingMaskIntoConstraints = false
  view.isUserInteractionEnabled = true
  view.textColor = UIColor.blue
  return view
}

    Within this closure I had view.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(doMyLabelMethod(_:)))) and view.isUserInteractionEnabled = true, when I moved them out of the closure and placed them directly above addSubview(myLabel) it fired fine.

    So variable-closures are good to contain many dressing, but not gesture recognizers!