我创建了一个带有暗视图的幻灯片菜单。当用户在侧边菜单外点击时,我希望幻灯片菜单和变暗视图消失。我怎样才能做到这一点呢?我已经在每个类中创建了一个TapRecognizer,它可以工作。。但只对每一节课同时进行。Here是我的菜单控件,下面是我的幻灯片转换,视图变暗。现在,当我在幻灯片菜单外单击时,它将删除变暗视图。但它也应该删除幻灯片菜单。
class SlideinTransition: NSObject, UIViewControllerAnimatedTransitioning {
let menuViewController = MenuViewController()
var isPresenting = true
let dimmingView = UIView()
func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.6
}
@objc func touchWasDetected() {
print("Touch detected")
dimmingView.removeFromSuperview()
menuViewController.dismiss(animated: true, completion: nil)
}
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
guard let toViewController = transitionContext.viewController(forKey: .to),
let fromViewController = transitionContext.viewController(forKey: .from) else { return }
let containerView = transitionContext.containerView
let finalWidth = toViewController.view.bounds.width * 0.3
let finalHeight = toViewController.view.bounds.height
if isPresenting{
let tapGesture = UITapGestureRecognizer(target: self, action: #selector(touchWasDetected))
dimmingView.addGestureRecognizer(tapGesture)
//adds the dimming view
dimmingView.backgroundColor = .black
dimmingView.alpha = 0.0
containerView.addSubview(dimmingView)
dimmingView.frame = containerView.bounds
//adds the menu view controller to our container
containerView.addSubview(toViewController.view)
//init frame off the screen
toViewController.view.frame = CGRect(x: -finalWidth, y: 0, width: finalWidth, height: finalHeight)
}
let transform = {
self.dimmingView.alpha = 0.5
toViewController.view.transform = CGAffineTransform(translationX: finalWidth, y: 0)
}
let identity = {
self.dimmingView.alpha = 0.0
fromViewController.view.transform = .identity
}
//animates the transition
let duration = transitionDuration(using: transitionContext)
let isCancelled = transitionContext.transitionWasCancelled
UIView.animate(withDuration: duration, animations: {
self.isPresenting ? transform() : identity()
}) { (_) in
transitionContext.completeTransition(!isCancelled)
}
}
}
当用户在侧菜单外/在调光视图上点击时,应同时删除侧菜单和调光视图
最佳答案
我猜你现在用的是SlideinTransition
,然后解雇。
所以你应该把dimmingView.removeFromSuperview()
从touchWasDetected()
移到UIView.animate
完成。
升级版:
我已经在示例项目中运行了这个,运行良好。
初始控制器:
class ViewController: UIViewController, UIViewControllerTransitioningDelegate {
let transition = SlideinTransition()
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
segue.destination.transitioningDelegate = self
}
func animationController(forPresented presented: UIViewController, presenting: UIViewController, source: UIViewController) -> UIViewControllerAnimatedTransitioning? {
transition.isPresenting = true
return transition
}
func animationController(forDismissed dismissed: UIViewController) -> UIViewControllerAnimatedTransitioning? {
transition.isPresenting = false
return transition
}
}
修改的转换:
extension UIViewController {
@IBAction func dismissControllerAnimated() {
dismiss(animated: true)
}
}
class SlideinTransition: NSObject, UIViewControllerAnimatedTransitioning {
var isPresenting = true
let dimmingView = UIView()
func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
return 0.6
}
func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
guard let toViewController = transitionContext.viewController(forKey: .to),
let fromViewController = transitionContext.viewController(forKey: .from) else { return }
let containerView = transitionContext.containerView
let finalWidth = toViewController.view.bounds.width * 0.3
let finalHeight = toViewController.view.bounds.height
if isPresenting {
let tapGesture = UITapGestureRecognizer(target: toViewController, action: #selector(UIViewController.dismissControllerAnimated))
dimmingView.addGestureRecognizer(tapGesture)
//adds the dimming view
dimmingView.backgroundColor = .black
dimmingView.alpha = 0.0
containerView.addSubview(dimmingView)
dimmingView.frame = containerView.bounds
//adds the menu view controller to our container
containerView.addSubview(toViewController.view)
//init frame off the screen
toViewController.view.frame = CGRect(x: -finalWidth, y: 0, width: finalWidth, height: finalHeight)
}
let transform = {
self.dimmingView.alpha = 0.5
toViewController.view.transform = CGAffineTransform(translationX: finalWidth, y: 0)
}
let identity = {
self.dimmingView.alpha = 0.0
fromViewController.view.transform = .identity
}
//animates the transition
let duration = transitionDuration(using: transitionContext)
let isCancelled = transitionContext.transitionWasCancelled
UIView.animate(withDuration: duration, animations: {
self.isPresenting ? transform() : identity()
}) { (_) in
transitionContext.completeTransition(!isCancelled)
if !self.isPresenting {
self.dimmingView.removeFromSuperview()
}
}
}
}
关于swift - 如何立即关闭DimmingView和SlideMenu?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/56595441/