从UITabBarController弹出UIViewController

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

在注销按钮操作方法中尝试此代码

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

假设您具有以下结构

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

这会工作

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

Answer 3

您可以使用[self.navigationController popToRootViewControllerAnimated:YES]; 用于将viewController弹出到根viewController中