最近、同様の問題が発生しました。UITransitionView問題を解決するためにウィンドウから手動で削除する必要があり、その後、以前のルートビューコントローラーでdismissを呼び出して、割り当てが解除されたことを確認しました。
修正はあまり良くありませんが、質問を投稿してからより良い方法を見つけない限り、私が見つけたのはそれだけです！viewControllerちょうどであるnewControllerあなたの元の質問から。
UIViewController *previousRootViewController = self.window.rootViewController;
self.window.rootViewController = viewController;
// Nasty hack to fix http://stackoverflow.com/questions/26763020/leaking-views-when-changing-rootviewcontroller-inside-transitionwithview
// The presenting view controllers view doesn't get removed from the window as its currently transistioning and presenting a view controller
for (UIView *subview in self.window.subviews) {
if ([subview isKindOfClass:NSClassFromString(@"UITransitionView")]) {
[subview removeFromSuperview];
}
}
// Allow the view controller to be deallocated
[previousRootViewController dismissViewControllerAnimated:NO completion:^{
// Remove the root view in case its still showing
[previousRootViewController.view removeFromSuperview];
}];
これがあなたの問題の解決にも役立つことを願っています。
Swift 3.0
（他のSwiftバージョンの編集履歴を参照してください）
UIWindowオプションの遷移を渡すことができるようにする拡張機能として、より優れた実装。
extension UIWindow {
/// Fix for http://stackoverflow.com/a/27153956/849645
func set(rootViewController newRootViewController: UIViewController, withTransition transition: CATransition? = nil) {
let previousViewController = rootViewController
if let transition = transition {
// Add the transition
layer.add(transition, forKey: kCATransition)
}
rootViewController = newRootViewController
// Update status bar appearance using the new view controllers appearance - animate if needed
if UIView.areAnimationsEnabled {
UIView.animate(withDuration: CATransaction.animationDuration()) {
newRootViewController.setNeedsStatusBarAppearanceUpdate()
}
} else {
newRootViewController.setNeedsStatusBarAppearanceUpdate()
}
if #available(iOS 13.0, *) {
// In iOS 13 we don't want to remove the transition view as it'll create a blank screen
} else {
// The presenting view controllers view doesn't get removed from the window as its currently transistioning and presenting a view controller
if let transitionViewClass = NSClassFromString("UITransitionView") {
for subview in subviews where subview.isKind(of: transitionViewClass) {
subview.removeFromSuperview()
}
}
}
if let previousViewController = previousViewController {
// Allow the view controller to be deallocated
previousViewController.dismiss(animated: false) {
// Remove the root view in case its still showing
previousViewController.view.removeFromSuperview()
}
}
}
}
使用法：
window.set(rootViewController: viewController)
または
let transition = CATransition()
transition.type = kCATransitionFade
window.set(rootViewController: viewController, withTransition: transition)