I want to add a tap gesture recognizer to a custom UIView (which represent an Image and a Label). It seems that the gesture recognizer is not added to the view or that the subviews are not considered as the UIView itself, hence not working.
Here is how I add my view:
let indexSubview = IconTextView(svgName: "https://placeholder.pics/svg/30", textKey: "Index")
self.indexButton.addSubview(indexSubview)
let indexButtonTap = UITapGestureRecognizer(target: self, action: #selector(goToIndex))
indexButton.addGestureRecognizer(indexButtonTap)
(IconTextView being my custom view)
Then when I tap the indexButton
nothing is working.
My tap function, just in case:
@objc func goToIndex(sender:UITapGestureRecognizer) {
print("GO TO INDEX")
router.setRoute(routeName: "INDEX", routeParam: "")
}
I don't understand why it is not working, the userInteractions are enabled on all the elements.
Your precedent code + tap gesture, I edit constraints, add containerView:
class Aiutotipo: UIViewController {
let myImageView: UIImageView = {
let iv = UIImageView()
iv.contentMode = .scaleToFill
iv.clipsToBounds = true
iv.backgroundColor = .red
iv.translatesAutoresizingMaskIntoConstraints = false
return iv
}()
let myLabel: UILabel = {
let label = UILabel()
label.text = "Débats"
label.textColor = .white
label.textAlignment = .center
label.font = .systemFont(ofSize: 30, weight: .semibold)
label.translatesAutoresizingMaskIntoConstraints = false
return label
}()
let containerView = UIView() //your container view
override func viewDidLoad() {
super.viewDidLoad()
containerView.backgroundColor = .red // red bacground for container view visible, set .clear for transparent bg
containerView.isUserInteractionEnabled = true
containerView.translatesAutoresizingMaskIntoConstraints = false
let indexButtonTap = UITapGestureRecognizer(target: self, action: #selector(goToIndex))
containerView.addGestureRecognizer(indexButtonTap)
myImageView.image = UIImage(named: "profilo") // set here your image
let myWidth = myLabel.intrinsicContentSize.width // This reveal only text width in label
view.addSubview(containerView)
containerView.heightAnchor.constraint(equalToConstant: myWidth + 50).isActive = true
containerView.widthAnchor.constraint(equalToConstant: myWidth).isActive = true
containerView.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
containerView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
containerView.addSubview(myImageView)
myImageView.topAnchor.constraint(equalTo: containerView.topAnchor).isActive = true
myImageView.leadingAnchor.constraint(equalTo: containerView.leadingAnchor).isActive = true
myImageView.trailingAnchor.constraint(equalTo: containerView.trailingAnchor).isActive = true
myImageView.heightAnchor.constraint(equalTo: myImageView.widthAnchor).isActive = true
containerView.addSubview(myLabel)
myLabel.topAnchor.constraint(equalTo: myImageView.bottomAnchor).isActive = true
myLabel.leadingAnchor.constraint(equalTo: containerView.leadingAnchor).isActive = true
myLabel.trailingAnchor.constraint(equalTo: containerView.trailingAnchor).isActive = true
myLabel.bottomAnchor.constraint(equalTo: containerView.bottomAnchor).isActive = true
}
@objc fileprivate func goToIndex() {
print("GO TO INDEX")
}
}
This is the result
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