如何在基于视图的应用程序中添加 uinavigation 控制器

问题描述

我想将导航控制器添加到基于视图的应用程序中.我们如何以编程方式和使用 xib 文件来做到这一点..

I wanted to add a navigation controller to a view based application . how can we do this both programmatically and using xib file..

推荐答案

如果你需要在你的 uiviewcontroller 中加入导航控制器，你需要按照如下方式初始化它

If you need to incorporate a navigation controller in your uiviewcontroller you need to initialize it as it follows

UIViewController *yourViewController = ...

UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:yourViewController];

[self presentModalViewController:navController animated:YES];

//you need to release the controller
[navController release];

如果你在 UIApplicationDelegate 方法中

If you are in the UIApplicationDelegate method

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

你不能做一个 presentModalViewController:navController 动画...然后你需要将 navController.view 添加到窗口

You can't do a presentModalViewController:navController animated... then you need to add the navController.view to the window

    UIViewController *yourViewController = ...

    UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:yourViewController];
    [self.window addSubview:navController.view];
    //don't do a release of navController because is not retained by addSubview

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