Pop UIViewController from UITabBarController

Question

我想从TabBar弹出ViewController ，该TabBar是从我的应用程序中的ViewController for Logout功能推入的，我为此放了代码，但只在tabbar弹出，而不是在我的第一个ViewController 。

Answer 1

Try this code in your logout button action method

AppDelegate *appdelegate = (AppDelegate*)[[UIApplication sharedApplication]delegate];
LoginVC *viewController = [[LoginVC alloc]initWithNibName:@"LoginVC" bundle:nil];
NSArray *array = @[viewController];
[appdelegate.navController setViewControllers:array];
[appdelegate.tabbarController.view removeFromSuperview];
[[appdelegate tabbarController] removeFromParentViewController];
NSLog(@"array - > %@",array);
[appdelegate.window setRootViewController:appdelegate.navController];

Answer 2

Assuming you have following structure

Window - UINavigationController - (LoginViewController) - UITabBarController - (VC,VC)

This would work

AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication]delegate];
UINavigationController *navController = (UINavigationController *)appDelegate.window.rootViewController;
[navController popToRootViewControllerAnimated:YES];

Answer 3

You can use [self.navigationController popToRootViewControllerAnimated:YES]; for popping the viewController into root viewController