How to make UIButton stay always on top of loaded child view controllers?

Question

This is how I have my controller setup:

The UIView is a container view. Inside this I load another view controller.

This is how the stack of controllers look:

Safe Area  
ScrollView  
ContainerView
Close Button

After I do this my close button at the bottom will be under the new loaded controller so I cannot interact with it.

Is there a way to always make the close button stay on top of the loaded view controllers ?

Answer 1

你可以试试这个

self.view.insertSubview(child.view, belowSubview: closeButton)