将标签栏移动到屏幕顶部 [英] Move Tab Bar to top of screen

问题描述

我有一个标签栏控制器，据我们所知，它显示屏幕底部的标签栏。我正在寻找一种方法将它移到顶部。我不认为我可以使用简单的 UITabBar ，因为我需要在它下面嵌套 UINavigationControllers 。

I have a Tab Bar Controller which, as we know, displays the tab bar at the bottom of the screen. I'm looking for a way to move it to the top. I don't think I can use a simple UITabBar for this as I need to nest UINavigationControllers under it.

有没有办法将 UITabBarController 中的标签栏移动到屏幕顶部？

Is there any way to move the Tab Bar in a UITabBarController to the top of the screen?

推荐答案

在方法viewDidLayoutSubviews中尝试使用此代码 UITabBarController

Try this code in methods "viewDidLayoutSubviews" your UITabBarController

Swift 2.X

  self.tabbar.frame = CGRectMake(0,0,320,50) //example for iPhone 5

Swift 3.X

  self.tabbar.frame = CGRect(0,0,320,50) //example for iPhone 5

Swift 4.X

  self.tabbar.frame = CGRect( x: 0, y: 0, width: 320, height: 50)  //example for iPhone 5

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