A library that wraps iOS animations the same way three20 wraps UI Classes

Question

I found that three20 does a great job in simplifying grunt work when it comes to arranging and laying out buttons and views etc (amongst other things). I was wondering if there was something similar to that but for Animations instead. I have been spending a ton of time doing very basic animations that I'm sure are very common so as to merit some library or wrapper etc.

And yeah I don't want something like cocoa controls, that is pretty finished products.

let's say i want to slide a view to the top part of the screen and have it bounce when it hits the edge.. or like i have a list of 3 UIViews.. i want to add one after the second.. the last one slides down and makes room for the view i'm inserting.. common patterns like these nothing too fancy.. these often come custom made in many of the cocoacontrol projects.. but they have like 100 different implementations.. none of the implementations are made as an API or a library.. and so everyone winds up reinventing the wheel.. i thought a library would make sense.

Answer 1

I don't know Three20 UI classes - I find that, most of the time, I can start from some open-source project close enough from the result I'm looking for, but I have to play with code to become familiar with it, erase code that I don't use - in the end, there is no such thing as a golden hammer.

Still, for advanced animations, I found these easing functions (AHEasing) quite useful