如何在 Swift iOS 中关闭 2 个视图控制器？
下面是我的代码。
@IBAction func backButtonTapped(sender: AnyObject) {
self.presentingViewController
.presentingViewController
.dismissViewControllerAnimated(true, completion: nil)
}
斯威夫特 3+ 版本。您可以使用下面的代码在 Swift 3 中一次关闭两个视图控制器。
func dismissTwoViews() {
self.presentingViewController?
.presentingViewController?.dismiss(animated: true, completion: nil)
}
斯威夫特 4+ 版本。只是我们需要弹出特定的视图控制器使用这个扩展
extension UINavigationController {
func popToViewController(ofClass: AnyClass, animated: Bool = true) {
if let vc = viewControllers.filter({$0.isKind(of: ofClass)}).last {
popToViewController(vc, animated: animated)
}
}
func popViewControllers(viewsToPop: Int, animated: Bool = true) {
if viewControllers.count > viewsToPop {
let vc = viewControllers[viewControllers.count - viewsToPop - 1]
popToViewController(vc, animated: animated)
}
}
}
并在视图控制器类中像这样使用
for controller in self.navigationController!.viewControllers as
Array {
if controller.isKind(of:
yourPopControllerName.self) {
self.navigationController?.isNavigationBarHidden = false
_ =
self.navigationController!.popToViewController(controller,
animated: false)
break
}
}
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