How does [UIView beginAnimations] work?

Question

I was wondering how animations work in Cocoa Touch. For example:

[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.0];

view1.alpha = 1.0         


        

Answer 1

I believe it is just a wrapper over the old CoreAnimation calls. Look into the CoreGraphics API, you can see that there are multiple keys that you must set into a dictionary, while providing beginning and ending values for these keys.