The Libgdx project enjoys a steadily growing and active community. If you ever find yourself being stuck with a problem and you just cannot figure out how to solve it, check out the official forum at http://badlogicgames.com/forum/. There is a great chance someone else has already asked your question and has even found a solution with the help of the community. Otherwise, do not hesitate to ask your question on the forums.
There is also an official IRC channel (
#libgdx) on Freenode (irc.freenode.net) where you can find some of the users and developers to talk about Libgdx.
Libgdx website: http://libgdx.badlogicgames.com/
Also check out the following links for more in-depth information:
API overview: http://libgdx.badlogicgames.com/nightlies/docs/api/