UINavigationController 不显示根视图控制器

发布于 2024-11-27 08:35:04 字数 1036 浏览 2 评论 0原文

我在视图中有一个大小为 320x218 的 UIView（下面代码中的 menuView）。我想将导航控制器加载到该视图中。我使用以下代码来执行此操作：

MenuViewController *menuController = [[MenuViewController alloc] initWithNibName:@"MenuViewController" bundle:nil];

UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:menuController];
navigationController.navigationBarHidden = YES;

[menuView addSubview:navigationController.view];
[menuController release];
[navigationController release];

当我执行它时，根视图不会显示在该视图中。仅显示导航栏，视图的其余部分为空。

编辑：

我刚刚在 MenuViewController 的 initWithNibName: 和 viewDidLoad: 中放置了一个 NSLog() 。 initWithNibName: 中的那个被调用，但 viewDidLoad: 中的那个没有被调用：S

更新：

我试图将 menuController 推入我的 navigationController 思维因为它没有出现，所以它可能不在堆栈上。例外：

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Pushing the same view controller instance more than once is not supported

原文

I have a UIView (menuView in code below) of size 320x218 inside a view. I want to load a navigation controller into this view. Im using the following code to do that:

MenuViewController *menuController = [[MenuViewController alloc] initWithNibName:@"MenuViewController" bundle:nil];

UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:menuController];
navigationController.navigationBarHidden = YES;

[menuView addSubview:navigationController.view];
[menuController release];
[navigationController release];

When I execute it, the root view is not displayed in that view. Only a navigation bar is displayed and the rest of the view is empty.

Edit:

I just placed an NSLog() in both initWithNibName: and viewDidLoad: of MenuViewController. The one in initWithNibName: gets called but the one in viewDidLoad: doesn't :S

Update:

I tried to push menuController to my navigationController thinking since its not appearing, it might not be on the stack. Exception:

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Pushing the same view controller instance more than once is not supported

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夏末的微笑 2024-12-04 08:35:04

调用layoutsubviews确实有效。

[super loadView];
[self.view addSubview:navigationController.view];
[navigationController.view layoutSubviews];

call layoutsubviews do work.

[super loadView];
[self.view addSubview:navigationController.view];
[navigationController.view layoutSubviews];

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南街女流氓 2024-12-04 08:35:04

我在这里找到了答案：

UIViewController -viewDidLoad not being called

我必须添加这些行-initWithRootViewController 之后的代码，以便加载我的根视图控制器的视图：

navigationController.navigationBarHidden = YES;
[navigationController setView:menuController.view];

I found the answer here:

UIViewController -viewDidLoad not being called

I had to add these lines of code after -initWithRootViewController in order to load the view of my root view Controller:

navigationController.navigationBarHidden = YES;
[navigationController setView:menuController.view];

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ら栖息 2024-12-04 08:35:04

您不应该将 navigationViewController 作为子视图添加到 MenuViewController 中。
由于 navigationViewController 已经持有 MenuViewController。

只显示navigationViewController。

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莫相离 2024-12-04 08:35:04

self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.

ViewController *viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];

navController = [[UINavigationController alloc]initWithRootViewController:viewController];

self.window.rootViewController = self.navController;

在您的 appdelegate 方法中尝试此代码

self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.

ViewController *viewController = [[[ViewController alloc] initWithNibName:@"ViewController" bundle:nil] autorelease];

navController = [[UINavigationController alloc]initWithRootViewController:viewController];

self.window.rootViewController = self.navController;

Try this code in your appdelegate method

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