How can I animate zoom in / zoom out on iOS using Objective C?

Question

I\'m looking to replicate the zoom in / zoom out animations so common in iOS applications (example #1, #2). I am specifically looking for a source that can provide some comm

Answer 1

What I was looking for, considering the examples I gave, was a layer of abstraction that would give me most commonly used animation types.

Such types would enable the developer not only to include common animations like zoom in / zoom out, but also would incorporate optimum animation values (To, From, Timing etc.) so that developer doesn't have to worry about those.

I found one such library here, and I believe there are many more.