UIStackView : Is it really necessary to call both removeFromSuperView and removeArrangedSubview to remove a subview?

Question

From the UIStackView Class Reference

In removeArrangedSubview:

To prevent the view from appearing on screen after calling the stack’s removeArrang

Answer 1

Hacking With Swift provides a pretty good example and explanation, using Web views in this case.

The reason is that you can remove something from a stack view's arranged subview list then re-add it later, without having to recreate it each time – it was hidden, not destroyed. We don't want a memory leak, so we want to remove deleted web views entirely. If you find your memory usage ballooning, you probably forgot this step!

https://www.hackingwithswift.com/read/31/4/removing-views-from-a-uistackview-with-removearrangedsubview