如何在UITabBarController中插入UINavigationController

Question

如何在UITabBarController中插入UINavigationController。

目前，我有主UITabBarController里面应用程序委托declatarion这样的（所以标签是主要的）

self.window.rootViewController = self.tabBarController; 

而且里面一个选项卡，我想插入UINavigationController，并不能得到它。

的代码池莉构建是这样的：

1. MainWindow.xib与UITabBarController与标签对象类型为UINavigationController（指向NavigationHistory.xib） - 截图：无效链路
2. NavigationHistory.xib仅包含UINavigationController其中查看指向History.xib
3. History.xib只有UITableView元素 - 屏幕截图：无效链接

现在UIViewController不显示我的视图1视图，我不知道为什么它可能是。也许你有任何线索？或者将我指向完成这种配置的地方。

Answer 1

我会回答我自己。这是很好的 https://developer.apple.com/library/ios/#documentation/WindowsViews/Conceptual/ViewControllerCatalog/Chapters/CombiningViewControllers.html

Answer 2

解释写appdelegate.m文件中的代码.....

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 

    NSMutableArray *Mutablearray = [[NSMutableArray alloc] init]; 

     UIViewController *1st_View = [[FirstViewController alloc] initWithNibName:@"FirstViewController_iPhone" bundle:nil]; 

     UINavigationController *Navigation = [[UINavigationController alloc] initWithRootViewController:1st_View]; 

     [Mutablarray addObject:Navigation]; 

     UIViewController *2nd_View = [[SecondViewController alloc] initWithNibName:@"SecondViewController_iPhone" bundle:nil]; 

     UINavigationController *Navigation = [[UINavigationController alloc] initWithRootViewController:2nd_View]; 
     [Mutablearray addObject:Navigation]; 

    self.tabBarController = [[UITabBarController alloc] init]; 
    self.tabBarController.viewControllers = Mutablearray; 
    self.window.rootViewController = self.tabBarController; 
    [self.window makeKeyAndVisible]; 
    return YES; 
} 

Answer 3

控制器对象添加到UINavigationController的，并添加navigationcontroller对象的UITabBarController

Answer 4

的UINavigationController是一个UIViewController的子类，UITabBarController需要一个UIViewControllers数组（因此UINavigationController）;这告诉我，我可以给UITabBarController一个UINavigationControllers（或其子类）的数组，给出所需的交互。

编号：https://developer.apple.com/library/ios/documentation/UIKit/Reference/UINavigationController_Class/

https://developer.apple.com/library/ios/documentation/UIKit/Reference/UITabBarController_Class/

Answer 5

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

self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; 
UITabBarController *tab = [[UITabBarController alloc] init]; 


SimpleTableViewController *tableView = [[SimpleTableViewController alloc] init]; 
UINavigationController *nav1 = [[UINavigationController alloc] initWithRootViewController:tableView]; 
UITabBarItem *item = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemHistory tag:0]; 
nav1.tabBarItem = item; 


AboutViewController *about = [[AboutViewController alloc] init]; 
UINavigationController *nav2 = [[UINavigationController alloc] initWithRootViewController:about]; 
UITabBarItem *item2 = [[UITabBarItem alloc] initWithTabBarSystemItem:UITabBarSystemItemFeatured tag:0]; 
nav2.tabBarItem = item2; 

tab.viewControllers = @[nav1,nav2]; 

self.window.rootViewController = tab; 
[self.window makeKeyAndVisible]; 
return YES; 

}