Xcode4.3下UINavigationController与UITabBarController混合使用

1:首先建一个Empty Application工程，然后建一个AppDelegate.xib,拉一个UINavigationController控件到该xib的Objects上，并让该Custom class 的class继承AppDelegate

2:修改Appdelegate.h的内容为如下：

3:修改Appdelegate.m的application函数如下:

4:在AppDelegate.xib上链接navController输出口到Objects上的UINavigationController。运行后就能看到一个导航控制器的View

5:新建几个类如下：

6:修改Red.xib和Blue.xib的view输出口到对应的View中，修改ViewController.h如下：

7:修改ViewController.m的viewDidLoad如下：

运行后就能看到有一个有导航和Tab的View

add:代码添加UINavigationController如下：

AppDelegate.h

@property (strong, nonatomic) UINavigationController *navController;

AppDelegate.m

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
    // Override point for customization after application launch.
//    self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
//    self.viewController.title = @"My Test";
//    self.window.rootViewController = self.viewController;
    
    self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil];
    self.viewController.title = @"My Test";
    self.navController = [[UINavigationController alloc] init];
    [self.navController pushViewController:self.viewController animated:YES];
    self.window.rootViewController = self.navController;
    
    [self.window makeKeyAndVisible];
    return YES;
}