Disable Safe Area Layout Guides For UIView Programmatically

问题

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?

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

回答1:

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

override var safeAreaLayoutGuide: UILayoutGuide {
    return UILayoutGuide()
}

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.

回答2:

If there is someone faced that problem while using new SwiftUI I used following to ignore safe area

Text("Hello World")
    .frame(minWidth: 0, maxWidth: .infinity, minHeight: 0, maxHeight: .infinity)
    .background(Color.blue)
    .edgesIgnoringSafeArea(.all)

edgesIgnoringSafeArea(.all) is the method that extends the view out of the safe area on the specified edges.

来源：https://stackoverflow.com/questions/47228989/disable-safe-area-layout-guides-for-uiview-programmatically