How can I bring a view in front of another view, in Swift?

Question

Below are how my views are organized in IB, top->bottom when the app is started.

The user can do something to make \"Category Table View Header\" temporarily expand

Answer 1

In Swift 5

To bring a subview to front

self.view.bringSubviewToFront(yourView)

To send a subview to back

self.view.sendSubviewToBack(yourView)