Dismiss PresentationViewController

Question

I have a custom PresentationViewController which has a half screen size height and full screen size width.

I want to press outside PresentationViewController to dismiss it.

I tried adding a button in under ViewController, but this button's action never be called.

I also tried adding a button in PresentationViewController that have frame equal to view.frame and send an action for touchUpOutside, this button's action never be called also.

So how to dismiss this PresentationViewController

Use method touch began, if your touchView == self.view then dismiss presented vC — dahiya_boy, Jan 20 '17 at 05:12
@Anbu.Karthik, thank you, adding tapGesture to `self.view.window` works for me. — Twitter khuong291, Jan 20 '17 at 05:15

score 1 · Answer 1 · edited May 23 '17 at 11:53

add the gesture recognizer to the view's window

For Swift3

var recognizer = UITapGestureRecognizer(target: self, action: #selector(yourViewController.handleTap(_:)))
recognizer.numberOfTapsRequired = 1
recognizer.cancelsTouchesInView = false
self.view.window?.addGestureRecognizer(recognizer)

and call the function as like

 func handleTap(_ sender: UITapGestureRecognizer) {
if sender.state == .ended {
    var location: CGPoint = sender.location(in: nil)
    if !self.view.point(inside: self.view.convertPoint(location, from: self.view.window), withEvent: nil) {
        self.view.window?.removeGestureRecognizer(sender)
        self.dismiss(animated: true, completion: nil)
    }
}
}

for objective C you can take the reference from here

score 0 · Accepted Answer · answered Jan 20 '17 at 05:20

In underViewController, I add a gesture like this:

self.tapGestureDismissTopFanVC = UITapGestureRecognizer(target: self, action: #selector(PlayDetailViewController.dismissTopFanVC(_:)))
self.view.window?.addGestureRecognizer(tapGestureDismissTopFanVC!) // not self.view.addGesture 
self.view.backgroundColor = UIColor.black.withAlphaComponent(0.5)

then this gesture action:

func dismissTopFanVC(_ tapGesture: UITapGestureRecognizer) {
    if presentedViewController is TopFanPopOverViewController {
        presentedViewController?.dismiss(animated: true) {
            self.view.backgroundColor = .clear
            if self.tapGestureDismissTopFanVC != nil {
                self.view.window?.removeGestureRecognizer(self.tapGestureDismissTopFanVC!)
                self.tapGestureDismissTopFanVC = nil
            }
        }
    }
}

Dismiss PresentationViewController

2 Answers2