Try to port the one for IOS/B4i and sell it for a few bucks. I guess a lot of people are still looking for a game framework that works on both in B4A & B4i with the same code.
hi toley, it is not my library. i just tried to compile jbox2d_android lib and it worked. i just had 1 issue with the debugdrawing and i informed informatix about that the lib works on b4j and the only issue is the output of ints as colors instead of fx.colors (as b4j javafx needs) so he updated the lib to be compatible with b4j.