如何从上一个视图控制器返回RootView Controller？

Question

我有5个视图控制器，想要从最后一个视图返回到第一个视图控制器

Answer 1

在动画启动画面上使用此方法

[self performSelector:@selector(setHidden:) withObject:nil afterDelay:2.0];

-(void) setHidden:(id)sender
{
     UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboare" bundle:nil];
     YourVC* vController = (YourVC*)[Storyboard instantiateViewControllerWithIdentifier:@"storyboardId"];
     UINavigationController *navcotoller=[[UINavigationController alloc]initWithRootViewController:vController];
     self.window.rootViewController =navcotoller;
}

Answer 2

调用一个必须更改应用程序rootviewcontroller的函数。将其设置为navigationController

yourViewcontoller *viewController = [[yourViewContoller alloc] init];
UINavigationController *navController=[[UINavigationController alloc]initWithRootViewController:viewController];
self.window.rootViewController = navController;

Answer 3

如果您正在使用故事板，请为UINavigationController提供故事板ID。然后，您可以启动它并通过代码显示：

UINavigationController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"<Storyboard ID>"];
[self presentViewController:vc animated:YES completion:nil];

Answer 4

如果您使用的是UINavigationController，则可以而且只需致电

[self.navigationController popToRootViewControllerAnimated:YES];