以编程方式禁用UIView的安全区域布局指南

问题描述

安全区域布局指南.该如何用代码完成?

Safe area layout guides can be disabled in Interface Builder by unchecking the Use Safe Area Layout Guides. How can this be done in code?

我没有注意到与复选框直接对应的iOS11可用布尔值.

I didn't notice an iOS11-available boolean that directly corresponds with the checkbox.

推荐答案

我认为以编程方式完成此操作的唯一方法是覆盖safeAreaLayoutGuide属性.

I think the only way to accomplish this programmatically is to override the safeAreaLayoutGuide property.

override var safeAreaLayoutGuide: UILayoutGuide {
    return UILayoutGuide()
}

当通过IB禁用它时，它仍然返回一个UILayoutGuide，但是layoutFrame为零，通过返回UILayoutGuide的一个实例，您基本上是在做同样的事情.

When you disable it through IB it still returns a UILayoutGuide but with zero layoutFrame, by returning an instance of UILayoutGuide, you are basically doing the same.

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