xcode 使用故事板时从 UITabbarController 添加/删除或显示/隐藏标签栏项目
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Add/Remove or Show/Hide tab bar items from UITabbarController when using storyboards
提问by Dennis Burton
I have an application that needs to show different content from a UITabBarControllerbased on if the user is registered or not. Is there a way to add and remove ViewControllers from a UITabBarControllerat run-time? Show and Hide would be fine too.
我有一个应用程序需要UITabBarController根据用户是否注册来显示不同的内容。有没有办法在运行时ViewController从 a添加和删除s UITabBarController？显示和隐藏也可以。
Prior to storyboards you could call setViewControllerbut that does not seem to be the right way when using stoaryboards.
在使用故事板之前，您可以调用，setViewController但在使用故事板时这似乎不是正确的方法。
回答by user427969
You can remove a tabbar item as follows:
您可以按如下方式删除标签栏项目：
NSMutableArray *tabbarViewControllers = [NSMutableArray arrayWithArray: [self.tabBarController viewControllers]];
[tabbarViewControllers removeObjectAtIndex: /*Any index*/];
[self.tabBarController setViewControllers: tabbarViewControllers ];
回答by Maverick
Swift 4+
斯威夫特 4+
func removeTab(at index: Int) {
guard var viewControllers = self.tabBarController?.viewControllers else { return }
viewControllers.remove(at: index)
self.tabBarController?.viewControllers = viewControllers
}
回答by NiranjanB
While designing in storyboard we can hide the tab bar using the option Bottom-bar as nonein file-inspector.
在故事板中设计时，我们可以使用文件检查器中的底部栏选项隐藏标签栏。
