Transition to UITableView

I setup my unity project that I can switch between my 3d game and a UITableView to manage my list. This works fine so far but I’d like to have a transition between the two views.

I’m not a cocoa-expert by any means and as far as I know the flip-transition can only be applied to views in the same UIWindow. Unfortunately the UITableView won’t show up when I try to add it to the unity-window via

[_window addSubview:[navigationController view]];

which leaves me with creating a new UIWindow for the table.
Is there any chance to add a transition for the two UIWindows or at least a sort of In-Transition for the tableview?

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