I have a UIView that is showed every time I press a button in another view
@IBOutlet weak var view1: UIView!
@IBOutlet weak var view2: UIView!
@IBAction func showView(_ sender: Any) {
view2.isHidden = false
}
What I want is to add a tap gesture that allows me to hide view2 every time I tap outside of the view and, since those views are draggable, I want the second view not to be tappable when hidden ( so that if I touch under my view I don't risk to move it. This is what I tried:
var gesture : UITapGestureRecognizer?
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self,
selector: #selector(closeView), name: NSNotification.Name("CloseView"), object: nil)
gesture = UITapGestureRecognizer(target: self, action: #selector(ViewController.closeView))
}
@objc func closeView() {
if view2.isHidden == false {
view2.isUserInteractionEnabled = true
view2.isHidden = false
self.view.removeGestureRecognizer(gesture!)
} else {
view2.isHidden = true
view2.isUserInteractionEnabled = true
self.view.addGestureRecognizer(gesture!)
}
}
let closeTapGesture = UITapGestureRecognizer(target: view, action: #selector(getter: view2.isHidden)
view.addGestureRecognizer(closeTapGesture)
None of this work, how can I do?
You need to check if you actually tapped outside of view2:
var gesture : UITapGestureRecognizer?
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self,
selector: #selector(closeView), name: NSNotification.Name("CloseView"), object: nil)
let gesture = UITapGestureRecognizer(target: self, action: #selector(closeView(_:)))
view.addGestureRecognizer(gesture)
self.gesture = gesture
}
@objc private func closeView(_ tapGestureRecognizer: UITapGestureRecognizer) {
let location = tapGestureRecognizer.location(in: view2)
guard view2.isHidden == false,
!view2.bounds.contains(location) else { //We need to have tapped outside of view 2
return
}
view2.isHidden = true
}
Your tap gesture should only handle closeView .
@objc func closeView() {
view2.isHidden = true
view2.isUserInteractionEnabled = false
gesture?.isEnabled = false
}
And the the button click to show your view2 should call this.
func showView() {
view2.isHidden = false
view2.isUserInteractionEnabled = true
gesture?.isEnabled = true
}