UITabBarController 问题中的 UINavigationController [英] UINavigationController inside of UITabBarController issues

问题描述

有人能指出我如何在 UITabBarController 中设置 UINavigationController 的正确方向吗?我有一种感觉，我使用 initWithRootViewController 是错误的.

Can someone point me in the right direction with how to set up a UINavigationController inside of a UITabBarController? I have a feeling I'm using initWithRootViewController wrong.

ViewController1 *viewController1 = [[[ViewController1 alloc] initWithNibName:@"ViewController1" bundle:nil] autorelease];
self.navController = [[[UINavigationController alloc] initWithRootViewController:viewController1] autorelease];
ViewController2 *viewController2 = [[[ViewController2 alloc] initWithNibName:@"ViewController2" bundle:nil] autorelease];
ViewController3 *viewController3 = [[[ViewController3 alloc] initWithNibName:@"ViewController3" bundle:nil] autorelease];
ViewController4 *viewController4 = [[[ViewController4 alloc] initWithNibName:@"ViewController4" bundle:nil] autorelease];

self.tabBarController = [[[UITabBarController alloc] init] autorelease];
_tabBarController.viewControllers = [NSArray arrayWithObjects:navController, viewController2, viewController3, viewController4, nil];

self.tabBarController.delegate = self;
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];

感谢大家的建议.

推荐答案

在 AppDelegate 中，你把这个:

In the AppDelegate, you put this:

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

     self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
     // Override point for customization after application launch.
     UIViewController *viewController1 = [[[FirstViewController alloc] initWithNibName:@"FirstViewController" bundle:nil] autorelease];
     UINavigationController *navC1 = [[UINavigationController alloc] initWithRootViewController:viewController1];
     UIViewController *viewController2 = [[[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil] autorelease];
     UINavigationController *navC2 = [[UINavigationController alloc] initWithRootViewController:viewController2];
     UIViewController *viewController3 = [[[FirstViewController alloc] initWithNibName:@"ThirdViewController" bundle:nil] autorelease];
     UINavigationController *navC3 = [[UINavigationController alloc] initWithRootViewController:viewController3];
     UIViewController *viewController4 = [[[SecondViewController alloc] initWithNibName:@"ForthViewController" bundle:nil] autorelease];
     UINavigationController *navC4 = [[UINavigationController alloc] initWithRootViewController:viewController4];
     self.tabBarController = [[[UITabBarController alloc] init] autorelease];
     self.tabBarController.viewControllers = [NSArray arrayWithObjects:navC1, navC2, navC4, navC4, nil];
     self.window.rootViewController = self.tabBarController;
     [self.window makeKeyAndVisible];
     return YES;

}

希望有所帮助(抱歉英语不好:-))；

Hope that help (Sorry for the bad english :-) );

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