This app shows demonstrates a folding animation for UITableViewCells.

It can be used on any UIView, but it looks really good on UITableViewCells.

On a UITableViewCell that has one "collapsible" area (thanks autolayout!), the animation looks like this:

Usage:

- (void)foldOpenWithTransparency:(BOOL)withTransparency
             withCompletionBlock:(void (^)(void))completionBlock;

- (void)foldClosedWithTransparency:(BOOL)withTransparency
             withCompletionBlock:(void (^)(void))completionBlock;

• withTransparency: YES hides all the subviews of the view you're animating, so you can see what's behind it. NO shows a black background while the animation is going on.
• withCompletionBlock: Sometimes you want to change the state of your superview before animating... use the completion block to change it back when done!