UIModalTransitionStyle Partial Curl from both corners (or equivalent) possible?

I'm trying to create a custom view-controller. In this controller, the main view has to开发者_运维知识库 be able to curl up (modaltransitionstylepartialcurl) from both the bottom-right corner and from the bottom-left corner, each triggering a different view. Is this possible to do by somehow reflecting the current partial curl modal transition so it can operate from the other corner as well? Alternately, could this be accomplished by using a UIView animation transition and reflecting that? Or do I have to build my own animation? Thanks in advance!

There is no straightforward way to do this. You're in for a lot of custom code to pull this off.