Buttons lost focus?

[samurle]

I'm adding a UIImageView that covers the entire screen, and later removing it with a call to removeFromSuperview.
(e.g. splash screen).

However, at random times, after the view is removed, some buttons on the screen don't respond to the first click.
I have to click a second time for them to respond. Or maybe wait two seconds after the view is removed
before I start clicking again.

Have these buttons somehow lost focus? Should a subview automatically resign itself as a first responder
when removed from the superview? I shouldn't have to explicitly call resignFirstResponder or becomeFirstResponder?

[samurle]

Here's a better question:
Can I prevent a UIImageView from becoming a first responder?

If I set userInteractionEnabled = NO; for the subview that covers the entire screen, will it stop
becoming a first responder, or will it still steal mouse click focus?

[rocotilos]

Your problem is very weird.

Buttons shouldn't be losing focus. If you can see it, definitely you should be able to tap directly. My guess is probably you have some other transparent UIVIew blocking it temporarily...