UI tabBar控制器

Question

i have created a single application and then created 2 tabs programmatically, then i have created 2 buttons tab 1 and tab 2 here is the code of .m file

(IBAction)tab1:(id)sender { self.tabBarController.selectedIndex=0; }
(IBAction)tab2:(id)sender { self.tabBarController.selectedIndex=1; }

here is the code of my appdelegate.m

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

// Override point for customization after application launch.
self.tabBarController = [[UITabBarController alloc] init];

UIViewController *viewController1 = [[firstViewController alloc] init];

UIViewController *viewController2 = [[secondViewController alloc] init];

self.tabBarController.viewControllers=[NSArray arrayWithObjects:viewController1,viewController2, nil];

//self.window.rootViewController = self.tabBarController;

self.window.backgroundColor = [UIColor whiteColor];

return YES;
}

apparently there is no error in this code, if i set the tabbarcontroller as root it shows the tabs but when i want the viewcontroller to be root and buttons pointing to the tabs it doesnt work.

Answer 1

使用下面的代码隐藏tabbarviewcontroller的默认选项卡

[[self tabBarController] setTabBarHidden: YES];