Navigation Controller with TabBarController in App

Question

I am trying to make a tableview with two views, the tableview controller and the otherView controller. The tableview needs a navigation controller to get to a third view when a cell is clicked. I tried using the code below in my AppDelegate.m but it just creates the tableview with the navigation controller. Any suggestions on how I should edit this to get the tabview working as well? Thanks!

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

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

AJBTableViewController *masterViewController = [[AJBTableViewController alloc] initWithNibName:nil bundle:nil];
self.navigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];

_mainTabBar.viewControllers = [NSArray arrayWithObjects:_navigationController, otherViewController, nil];

[_window addSubview:_mainTabBar.view];

return YES;
}

Answer 1

标签栏控制器应该是应用程序的根视图控制器，而不是第一个标签栏项目的导航控制器。

Answer 2

_mainTabBar.viewControllers = [NSArray arrayWithObjects:_navigationController, otherViewController, nil];
[_window addSubview:_mainTabBar.view];

Instead this code, you try below code:

UITabBarController *tbC = [[UITabBarController alloc]init];
tbC.viewControllers = [NSArray arrayWithObjects:_navigationController,otherViewController, nil];
self.window.rootViewController = tbC;

and delete

self.window.rootViewController = self.navigationController;

Answer 3

抱歉，我没有分配Tabbar控制器的实例，Mundi是对的，使rootviewcontroller成为TabbarController的正确方式，这是愚蠢的错误，我从未分配过。