ios - UIContainerView 在更改框架后停止接收触摸
<p><p>UIContainerView 显示一个 ViewController :</p>
<p> <a href="/image/u6wj6.jpg" rel="noreferrer noopener nofollow"><img src="/image/u6wj6.jpg" alt="enter image description here"/></a> </p>
<p>现在，当用户使用此代码点击全屏按钮时，我将使其全屏显示:</p>
<pre><code>@IBAction func fullscreen(_ sender: Any) {
view.goFullscreen()
}
extension CGAffineTransform {
static let ninetyDegreeRotation = CGAffineTransform(rotationAngle: CGFloat(Double.pi / 2))
}
extension UIView {
var fullScreenAnimationDuration: TimeInterval {
return 0.15
}
func minimizeToFrame(_ frame: CGRect) {
UIView.animate(withDuration: fullScreenAnimationDuration) {
self.layer.setAffineTransform(.identity)
self.frame = frame
}
}
func goFullscreen() {
UIView.animate(withDuration: fullScreenAnimationDuration) {
self.layer.setAffineTransform(.ninetyDegreeRotation)
self.frame = UIScreen.main.bounds
}
}
}
</code></pre>
<p>使 View 全屏工作正常，但当 ViewController 全屏时， View 停止接收触摸。当我向 ViewController 添加约束时会发生这种情况，但是当我删除它时它工作正常。为什么会发生这种情况，我怎样才能同时设置约束和接收触摸？</p>
<p> <a href="/image/8btzB.jpg" rel="noreferrer noopener nofollow"><img src="/image/8btzB.jpg" alt="enter image description here"/></a> </p></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>这是一个说明如何将变换应用于 superView 中检测到的触摸点的 Playground :</p>
<pre><code>import UIKit
import PlaygroundSupport
class ViewController: UIViewController {
private let redView = UIView()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(redView)
redView.translatesAutoresizingMaskIntoConstraints = false
redView.widthAnchor.constraint(equalToConstant: 100).isActive = true
redView.heightAnchor.constraint(equalToConstant: 200).isActive = true
redView.centerXAnchor.constraint(equalTo: redView.superview!.centerXAnchor).isActive = true
redView.centerYAnchor.constraint(equalTo: redView.superview!.centerYAnchor).isActive = true
redView.backgroundColor = .red
redView.transform = CGAffineTransform(rotationAngle: CGFloat.pi / 2)
let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(tap))
view.addGestureRecognizer(tapGestureRecognizer)
}
@objc private func tap(tapGestureRecognizer: UITapGestureRecognizer) {
let point = tapGestureRecognizer.location(in: redView).applying(redView.transform)
if redView.bounds.applying(redView.transform).contains(point) {
print ("You tapped inside")
} else {
print("You tapped outside)")
}
}
}
let v = ViewController()
PlaygroundPage.current.liveView = v.view
</code></pre></p>
<p style="font-size: 20px;">关于ios - UIContainerView 在更改框架后停止接收触摸，我们在Stack Overflow上找到一个类似的问题：
<a href="https://stackoverflow.com/questions/47309244/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/47309244/
</a>
</p>
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