如何使用StoryBoard在UITabBarController中设置选定的选项卡？ [英] How do I set selected tab in UITabBarController using StoryBoard?

问题描述

如何使用StoryBoard切换到 UITabBarController 中的某些标签？我尝试过以下代码但没有成功（选项卡未选中）：

How can I switch to some tab in UITabBarController using StoryBoard? I have tried the code below but without success (the tab is not selected):

self.tabBar.selectedIndex = 3;

老实说，我使用没有StoryBoard的nib文件，上面的代码在

Honestly I used nib files without StoryBoard and this code above worked fine in

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

但现在我无法以编程方式设置选项卡。也许还有另一个与选择标签无关的问题。如何切换标签？

but now I can't set the tab programatically. Maybe there is another problem that is not connected to selecting the tab. How can I switch tabs?

推荐答案

抓住你的 UITabBarController 的实例然后设置 selectedViewController 属性：

Grab your instance of UITabBarController then set the selectedViewController property:

yourTabBarController.selectedViewController=[yourTabBarController.viewControllers objectAtIndex:3];//or whichever index you want

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