Service call from Android to cpp service

Question

I followed this tutorial /ROS/Tutorials/CreatingMsgAndSrv and want to call the server from Android now, but can't find any hints how to accomplish this step by step.

My main problem is (i think) that i don't have the message structures in java, it's only built for cpp/python.

Can i dynamically create messages in Java without needing the type definitions? Or do i need to tweak something to get the Java definitions from my existing cpp/msg tutorial code?

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Originally posted by ruderik on ROS Answers with karma: 23 on 2014-02-26

Post score: 0

Answer 1

The rosjava message generator is not yet native, so that's why you'll only find cpp/python (and sometimes lisp).

If you just want to use messages from officially released packages, then you can pull them from our rosjava maven repo or if you want to build messages from your own custom message stacks, then check out the instructions in the rosjava wiki. Not being a native generator, it's a bit complicated, but my team does it successfully like this at Yujin for a fairly large set of custom messages. They're neither experts at ros or java, but are quite comfortable with the process now.

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Originally posted by Daniel Stonier with karma: 3170 on 2014-02-26

This answer was ACCEPTED on the original site

Post score: 0

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Original comments

Comment by ruderik on 2014-02-27:
Thanks for your answer and putting me on the right track. I'll try it out following this tutorial /rosjava/Tutorials/hydro/Unofficial Messages (i'm not allowed to post actual links, sorry).