将UIButton带到顶层

问题描述

我知道有一种将子视图置于层次结构前面的方法.但是，有一种方法可以使我放置在故事上的按钮并调用一个函数，该按钮将使该按钮成为顶层，从而使其不会被未在故事板上添加的任何其他元素隐藏. >

谢谢

解决方案

这个问题我来晚了，但是Swift 3回答这个问题还不算太晚

雨燕3

 view.bringSubview(toFront: theButton)

I know there is a way of bringing a subview to the front of the hierarchy. However is there a way of bringing a button that i have placed on a story and calling a function that will make that button the top layer so its not hidden by any other elements that are added that aren't in the story board.

Thanks,

解决方案

I am late for this question, but not too late to answer it by Swift 3

Swift 3

 view.bringSubview(toFront: theButton)

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