If a view has isAccessibilityElement to true, assistive tech won't look for any of its subviews. That means that if there are any buttons inside, they won't be accessible. You can add custom actions to that element though.
You may also find interesting...
What is the difference between isAccessibilityElement and accessibilityElementsHidden? The first one makes the view not accessible, but its subviews can still be accessible. The second one hides the view and all its subviews from assistive tech.
You can add an observer to listen for changes in the content size category, in case it is more convenient than overriding traitCollectionDidChange(_:).
If, for some reason, you are creating a button from scratch, instead of relying on UIButton (perhaps you are adding a fancy micro interaction animation?), take into account that you’ll need to configure the button accessibility trait.
Content © Daniel Devesa Derksen-Staats — Accessibility up to 11!
