I've been using the excellent R.U.B.E Box2D editor (https://www.iforce2d.net/rube/
) with a view to using it as a level/game editor for my Gideros projects.
One of my first steps is to create a loader that may be extended for any Box2D based game. I'm sharing my development effort here for anyone that may be interested, or that it may help.
I'm also opening this up as a collaborative effort project. Please feel free to make or suggest your own improvements or additions via branches and please provide feedback, ideas or report issues using the BitBucket repository tools.
(p.s. it may take me a while to get the BitBucket settings for the repository set correctly - please bear with me!)
Here's the repository: https://bitbucket.org/BigWinston/girube
. It contains the source, an issue tracker and a wiki that I'll be putting any documentation into.