[iPhone]UIButton does not respond when layouted.(layoutSubviewでUIButtonを動かすと、反応しなくなる）
I have been in stuck for days that UIButton does not respond to touch. I finally figured out that because overridden "layoutSubviews" function did not call it's super's "layoutSubviews" on the top. If you want to move UIButtons along layout, you should write something like, -(void) layoutSubviews { [super layoutSubviews];