knickmack/GameCall — pull request #9 by knickmack (2013-01-04 21:18:49+00:00)
Title: Using `UIViewAnimationOptionTransitionFlipFromLeft`  or `UIViewAnimationOptionTransitionFlipFromRight`  will always result in a clear background color. As a result, ...

...use `UIViewAnimationOptionTransitionNone` instead. Fixes #2.