如何使两个子视图相互交互？

Question

I have a subview layering problem where I have a rotating arrow and a UIButton. The arrows rotate and the UIButton changes depending on the rotation of the arrows. The problem is that I need to have the UIButton clickable. At the moment the arrows rotate but the UIButton is not touchable. If I try [self.view sendSubviewToBack:wheelControl]; the arrows are sent to the back and are no longer visible.

thanks for any help about how I might fix this.

Answer 1

You need to call

[theView bringSubviewToFront:theButton];

as the last call when laying out your subviews.