将触摸从UIScrollView传递到下面的UIButton

Question

Here's my setup: I have one main view, which has several UIButtons inside, as well as a UIScrollView . The UIScrollView has two UIImageView s within it. The UIScrollView in the layer order is on top of the UIButtons .

What I would like to happen is that the UIScrollView would pass touches to the UIButtons underneath it if the touches within the UIScrollView are not on either UIImageView .

Any idea on how to set this up?

Thanks for any guidance.

Answer 1

You could override the hit testing mechanisms of the scroll view to accomplish exactly what you are asking, but honestly that is more work than you need to do any may well give unexpected results.

A better approach would be to add a tap gesture recognizer to the scroll view and have the handler perform the same action as the corresponding button.

EDIT:

Based on a better understanding of what you are trying to do, you should make your buttons subviews of a custom UIScrollView and override -layoutSubviews to dynamically reposition them so that they stay in a fixed location. If you can't/don't want to subclass UIScrollView, you can try an alternate approach that I outlined in response to a similar question .