When is layoutSubviews called?

Question

I have a custom view that\'s not getting layoutSubview messages during animation.

I have a view that fills the screen. It has a custom subview at the bo

Answer 1

I had a similar question, but wasn't satisfied with the answer (or any I could find on the net), so I tried it in practice and here is what I got:

• init does not cause layoutSubviews to be called (duh)
• addSubview: causes layoutSubviews to be called on the view being added, the view it’s being added to (target view), and all the subviews of the target
• view setFrame intelligently calls layoutSubviews on the view having its frame set only if the size parameter of the frame is different
• scrolling a UIScrollView causes layoutSubviews to be called on the scrollView, and its superview
• rotating a device only calls layoutSubview on the parent view (the responding viewControllers primary view)
• Resizing a view will call layoutSubviews on its superview

My results - http://blog.logichigh.com/2011/03/16/when-does-layoutsubviews-get-called/