选择选项卡时弹出到根视图-移动开发问题

Pop to root view when tab is selected(选择选项卡时弹出到根视图)

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问题描述

我在一些我认为可能很容易的事情上遇到了一些麻烦.I have a table in my root view controller, when a row is selected I push a new view and from there I go to another tab.

I've been having some trouble with something I thought might be easy. I have a table in my root view controller, when a row is selected I push a new view and from there I go to another tab.

我的问题是如何确保一旦用户点击第一个选项卡，导航控制器就会弹出到根目录?

My question is how do I make sure that as soon as the user taps the first tab the navigation controller will pop to root?

推荐答案

在选项卡栏上选择每个选项卡时调用以下委托.

Following delegate is called while each tab is selected on tabbar.

-(void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController

将以下代码放入此委托方法中.

Put following code inside this delegate method.

if ([viewController isKindOfClass:[UINavigationController class]]) 
    {
        [(UINavigationController *)viewController popToRootViewControllerAnimated:NO];
    }

它在我的应用上运行良好.

its working fine on my app.

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