CGAffineTransform and scaling to center of the image

Question

I started studying objective-c using the iPhone and iPad apps for Absolute Beginners by Rory Lewis book but i got stuck on the 5th chapter.

I want to make a

Answer 1

If you are transforming a view mangled managed by auto-layout, you may experience some strange side-effects. See this answer for more details.

The solution I ended up employing was to encapsulate the view I wanted to transform inside another view of exactly the same size. The outer view had the appropriate layout constraints applied to it while the inner view was simply centered in its container. Applying a CGAffineTransform scale transform to the inner view now centers properly.