Specialization is a feature of every complex organization.
Catharine R. Stimpson
Up to this point, we have been working with the
CALayer class, and we have seen that it has some useful image drawing and transformation capabilities. But Core Animation layers can be used for more than just images and colors. This chapter explores some of the other layer classes that you can use to extend Core Animation’s drawing capabilities.
CAShapeLayer is a layer subclass that draws itself using vector graphics instead of a bitmap ...