ios – 如何在视图外点击时关闭模态表单？

class MyBasePopUp: UIViewController,UIGestureRecognizerDelegate {

var tap: UITapGestureRecognizer!
override func viewDidAppear(_ animated: Bool) {

    tap = UITapGestureRecognizer(target: self,action: #SELEctor(onTap(sender:)))
    tap.numberOfTapsrequired = 1
    tap.numberOfTouchesrequired = 1
    tap.cancelsTouchesInView = false
    tap.delegate = self
    self.view.window?.addGestureRecognizer(tap)
}

internal func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer,shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
    return true
}

internal func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer,shouldReceive touch: UITouch) -> Bool {
    let LOCATIOn = touch.LOCATIOn(in: self.view)

    if self.view.point(inside: LOCATIOn,with: nil) {
        return false
    }
    else {
        return true
    }
}

@objc private func onTap(sender: UITapGestureRecognizer) {

    self.view.window?.removeGestureRecognizer(sender)
    self.dismiss(animated: true,completion: nil)
}

这只是为了解除弹出窗口,如果您有多个手势,请小心.