如何从其他ViewController更改AppDelegate中的RootViewController? [英] How to change RootViewController in AppDelegate From Other ViewController?

问题描述

这是AppDelegate中的didFinishLaunchingWithOptions方法. 让我解释一下情况，我在应用程序中开发了类似于facebook的sideMenu，但是现在我必须根据屏幕(ViewController)更改sideMenu列表

This is didFinishLaunchingWithOptions Method in AppDelegate. Let me explain scenario, I have developed sideMenu like facebook in my app, but now I have to change the sideMenu list according to screens (ViewController)

这里的侧面菜单是SideMenuViewController，它是contains中的一个参数，最终成为窗口的rootViewController.

Here the side Menu is SideMenuViewController, which is an argument in contain, which ultimately becomes window's rootViewController.

因此，出现了一个非常基本的问题:如何更改成为Windows的rootViewController的控制器或变量"

SO, The very basic question arises is "How to change the controller or variable which becomes rootViewController of windows"

 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

SideMenuViewController *leftMenuViewController = [[SideMenuViewController alloc] init];

self.container = [ContainerOfSideMenuByVeerViewController
                  containerWithCenterViewController:[self navigationController]
                  leftMenuViewController:leftMenuViewController];

self.window.rootViewController = self.container;

[self.window makeKeyAndVisible];

return YES;

}

如果任何程序员想了解更多代码或要求，欢迎通过编辑我的代码或在注释中提供.

If any programmer wants to know more code or requirement, I do welcome to provide by editing my code or in comments.

推荐答案

尝试一下:

<YourAppDelegateClass> *app = [[UIApplication sharedApplication] delegate];
app.window.rootViewController = <YourRootViewController>;

别忘了包含必要的标头(例如，您的AppDelegate)，否则您将获得CE. 这似乎很有效:

Don't forget to include necessary headers (your AppDelegate, for example) or you'll get CE. This one seems to work:

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