blocks|key|544126|text|您可以将rootViewController的切换包装在过渡动画块中：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|544127|[UIView+transitionWithView:self.window
++++++++++++++++++duration:0.5
+++++++++++++++++++options:UIViewAnimationOptionTransitionFlipFromLeft
++++++++++++++++animations:%5E{+self.window.rootViewController+=+newViewController;+}
++++++++++++++++completion:nil];|code-block|syntax|javascript|544128|entityMap^0|4|I|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

You can wrap the switching of the <code>rootViewController</code> in a transition animation block:

<pre><code>[UIView transitionWithView:self.window
 duration:0.5
 options:UIViewAnimationOptionTransitionFlipFromLeft
 animations:^{ self.window.rootViewController = newViewController; }
 completion:nil];
</code></pre>

blocks|key|544163|text|在AppDelegate.h中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|544164|#define+ApplicationDelegate+((AppDelegate+*)[UIApplication+sharedApplication].delegate)]|code-block|syntax|javascript|544165|在您的控制器中：|544166|[UIView+transitionWithView:self.window
++++++++++++++++++duration:0.5
+++++++++++++++++++options:UIViewAnimationOptionTransitionFlipFromLeft
++++++++++++++++animations:%5E{
++++ApplicationDelegate.window.rootViewController+=+newViewController;
++++}
++++++++++++++++completion:nil];|544167|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

in AppDelegate.h:

<pre><code>#define ApplicationDelegate ((AppDelegate *)[UIApplication sharedApplication].delegate)]
</code></pre>

in your Controller:

<pre><code>[UIView transitionWithView:self.window
 duration:0.5
 options:UIViewAnimationOptionTransitionFlipFromLeft
 animations:^{
 ApplicationDelegate.window.rootViewController = newViewController;
 }
 completion:nil];
</code></pre>

blocks|key|544185|text|试试这个吧。对我来说很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|544186|BOOL+oldState+=+[UIView+areAnimationsEnabled];
[UIView+setAnimationsEnabled:NO];
self.window.rootViewController+=+viewController;
[UIView+transitionWithView:self.window+duration:0.5+options:transition+animations:%5E{
++++//
}+completion:%5E(BOOL+finished)+{
++++[UIView+setAnimationsEnabled:oldState];
}];|code-block|syntax|javascript|544187|编辑：|544188|这个更好。|544189|-+(void)setRootViewController:(UIViewController+*)viewController
+++++++++++++++withTransition:(UIViewAnimationOptions)transition
+++++++++++++++++++completion:(void+(%5E)(BOOL+finished))completion+{
++++UIViewController+*oldViewController+=+self.window.rootViewController;
++++[UIView+transitionFromView:oldViewController.view+
++++++++++++++++++++++++toView:viewController.view
++++++++++++++++++++++duration:0.5f
+++++++++++++++++++++++options:(UIViewAnimationOptions)(transition%7CUIViewAnimationOptionAllowAnimatedContent%7CUIViewAnimationOptionLayoutSubviews)
++++++++++++++++++++completion:%5E(BOOL+finished)+{
++++++++self.window.rootViewController+=+viewController;
++++++++if+(completion)+{
++++++++++++completion(finished);
++++++++}
++++}];
}|544190|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|R|8|@]|9|@]|A|$]]|$1|K|3|L|5|D|7|S|8|@]|9|@]|A|$E|F]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

just try this. Works fine for me.

<pre><code>BOOL oldState = [UIView areAnimationsEnabled];
[UIView setAnimationsEnabled:NO];
self.window.rootViewController = viewController;
[UIView transitionWithView:self.window duration:0.5 options:transition animations:^{
 //
} completion:^(BOOL finished) {
 [UIView setAnimationsEnabled:oldState];
}];
</code></pre>

EDIT:

This one is better.

<pre><code>- (void)setRootViewController:(UIViewController *)viewController
 withTransition:(UIViewAnimationOptions)transition
 completion:(void (^)(BOOL finished))completion {
 UIViewController *oldViewController = self.window.rootViewController;
 [UIView transitionFromView:oldViewController.view 
 toView:viewController.view
 duration:0.5f
 options:(UIViewAnimationOptions)(transition|UIViewAnimationOptionAllowAnimatedContent|UIViewAnimationOptionLayoutSubviews)
 completion:^(BOOL finished) {
 self.window.rootViewController = viewController;
 if (completion) {
 completion(finished);
 }
 }];
}
</code></pre>

blocks|key|544241|text|为了避免以后在应用程序中使用过渡翻转时出现问题，最好也从堆栈中清除旧视图|type|unstyled|depth|inlineStyleRanges|entityRanges|data|544242|UIViewController+*oldController=self.window.rootViewController;

[UIView+transitionWithView:self.window
++++++++++++++++++duration:0.5
+++++++++++++++++++options:UIViewAnimationOptionTransitionCrossDissolve
++++++++++++++++animations:%5E{+self.window.rootViewController+=+nav;+}
++++++++++++++++completion:%5E(BOOL+finished)+{
++++++++++++++++++++if(oldController!=nil)
++++++++++++++++++++++++[oldController.view+removeFromSuperview];
++++++++++++++++}];|code-block|syntax|javascript|544243|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

In order not to have problems with transition flip later on in the app is good to clear the old view from the stack as well

<pre><code>UIViewController *oldController=self.window.rootViewController;

[UIView transitionWithView:self.window
 duration:0.5
 options:UIViewAnimationOptionTransitionCrossDissolve
 animations:^{ self.window.rootViewController = nav; }
 completion:^(BOOL finished) {
 if(oldController!=nil)
 [oldController.view removeFromSuperview];
 }];
</code></pre>

blocks|key|544288|text|这是swift+3的更新，此方法应该在您的app委托中，您可以通过app委托的共享实例从任何视图控制器调用它。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|544289|func+logOutAnimation()+{
++++let+storyBoard+=+UIStoryboard.init(name:+"SignIn",+bundle:+nil)
++++let+viewController+=+storyBoard.instantiateViewController(withIdentifier:+"signInVC")
++++UIView.transition(with:+self.window!,+duration:+0.5,+options:+UIViewAnimationOptions.transitionFlipFromLeft,+animations:+{
++++++++self.window?.rootViewController+=+viewController
++++++++self.window?.makeKeyAndVisible()
++++},+completion:+nil)
}|code-block|syntax|javascript|544290|上面各种问题中缺少的部分是|544291|++++self.window?.makeKeyAndVisible()|544292|希望这对某些人有帮助。|544293|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|Q|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

This is an update for swift 3, this method should be in your app delegate, and you call it from any view controller, via a shared instance of the app delegate

<pre><code>func logOutAnimation() {
 let storyBoard = UIStoryboard.init(name: "SignIn", bundle: nil)
 let viewController = storyBoard.instantiateViewController(withIdentifier: "signInVC")
 UIView.transition(with: self.window!, duration: 0.5, options: UIViewAnimationOptions.transitionFlipFromLeft, animations: {
 self.window?.rootViewController = viewController
 self.window?.makeKeyAndVisible()
 }, completion: nil)
}
</code></pre>

The part that is missing from various questions above, is 

<pre><code> self.window?.makeKeyAndVisible()
</code></pre>

Hope this helps someone.

blocks|key|760911|text|我提出了我的方式，它在我的项目中工作得很好，它为我提供了很好的动画。我已经测试了这篇文章中发现的其他建议，但其中一些并没有像预期的那样工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|760912|-+(void)transitionToViewController:(UIViewController+*)viewController+withTransition:(UIViewAnimationOptions)transition+completion:(void+(%5E)(BOOL+finished))completion+{
//+Reset+new+RootViewController+to+be+sure+that+it+have+not+presented+any+controllers
[viewController+dismissViewControllerAnimated:NO+completion:nil];

[UIView+transitionWithView:self.window
++++++++++++++++++duration:0.5f
+++++++++++++++++++options:transition
++++++++++++++++animations:%5E{
++++++++++++++++++++for+(UIView+*view+in+self.window.subviews)+{
++++++++++++++++++++++++[view+removeFromSuperview];
++++++++++++++++++++}
++++++++++++++++++++[self.window+addSubview:viewController.view];

++++++++++++++++++++self.window.rootViewController+=+viewController;
++++++++++++++++}+completion:completion];
}|code-block|syntax|javascript|760913|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I propose my way which it is working fine in my project, and it offers me good animations. I have tested other proposals found in this post, but some of them do not work as expected.

<pre><code>- (void)transitionToViewController:(UIViewController *)viewController withTransition:(UIViewAnimationOptions)transition completion:(void (^)(BOOL finished))completion {
// Reset new RootViewController to be sure that it have not presented any controllers
[viewController dismissViewControllerAnimated:NO completion:nil];

[UIView transitionWithView:self.window
 duration:0.5f
 options:transition
 animations:^{
 for (UIView *view in self.window.subviews) {
 [view removeFromSuperview];
 }
 [self.window addSubview:viewController.view];

 self.window.rootViewController = viewController;
 } completion:completion];
}
</code></pre>

blocks|key|544361|text|漂亮的动画片(用Swift+4.x测试)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|544362|extension+AppDelegate+{
+++public+func+present(viewController:+UIViewController)+{
++++++++guard+let+window+=+window+else+{+return+}
++++++++UIView.transition(with:+window,+duration:+0.5,+options:+.transitionFlipFromLeft,+animations:+{
++++++++++++window.rootViewController+=+viewController
++++++++},+completion:+nil)
++++}
}|code-block|syntax|javascript|544363|呼叫|544364|guard+let+delegate+=+UIApplication.shared.delegate+as?+AppDelegate+else+{+return+}
delegate.present(viewController:+UIViewController())|544365|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Nice sweet animation (tested with Swift 4.x):

<pre><code>extension AppDelegate {
 public func present(viewController: UIViewController) {
 guard let window = window else { return }
 UIView.transition(with: window, duration: 0.5, options: .transitionFlipFromLeft, animations: {
 window.rootViewController = viewController
 }, completion: nil)
 }
}
</code></pre>

Call with

<pre><code>guard let delegate = UIApplication.shared.delegate as? AppDelegate else { return }
delegate.present(viewController: UIViewController())
</code></pre>

Is there any way to have a Transition/animation effect while replacing an existing viewcontroller as rootviewcontroller with a new one in the appDelegate?

RootViewController Switch Transition Animation

Swift

在appDelegate中用新的视图控制器替换现有的视图控制器作为根视图控制器时，有没有办法获得过渡/动画效果？

问RootViewController切换过渡动画
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