UINavigationController：如何删除堆栈视图

假设这是我的堆栈布局

View3     --> Top of the stack
View2
View1
HomeView  --> Bottom of the stack

所以我在View3现在，如果我点击Home按钮，我要加载HomeView，这意味着我需要弹出View3, View2, and View1。但如果我弹出View3, View2将显示。我不想那样。我想View3, View2, and View1被删除，并且HomeView将显示。知道怎么做吗？

您可以使用popToRootViewControllerAnimated： http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UINavigationController_Class/Reference/Reference.html#//apple_ref/occ/instm/UINavigationController/popToRootViewControllerAnimated:到达根视图控制器。这将弹出堆栈中除根视图控制器之外的所有视图控制器。在你的情况下，这将是HomeView.

[self popToRootViewControllerAnimated:YES];

要访问堆栈中的特定视图，您可以使用popToViewController：动画： http://developer.apple.com/iphone/library/documentation/UIKit/Reference/UINavigationController_Class/Reference/Reference.html#//apple_ref/occ/instm/UINavigationController/popToViewController:animated:假设您想弹出第三个视图控制器（从下到上）。在你的情况下，这将是view2:

NSArray* viewControllersInStack = self.navigationController.viewControllers;
UIViewController* targetViewController = [viewControllersInStack objectAtIndex:2];
[self.navigationController popToViewController:targetViewController animated:YES];