Document how to build Android examples

[talregev]

Hi all, I compile the ros2_java_android.repos with colcon: the official build system for ros2. How I can compile ament_java projects and ament_android projects with colcon?

Thanks for your help.

[talregev]

I found a solution although i didn't succeed to compile android example. (Why it so hard?) Instead of ament_tools you can have 2 repositories:

https://github.com/colcon/colcon-gradle https://github.com/colcon/colcon-ros-gradle

I will add them to pr

[talregev]

Can you change the guid how I can compile ros2 java for android when compile it with ros2 dashing, and colcon? Please help me.

[jacobperron]

If I'm not mistaken, building Android packages (like the examples) needs some work and depends on https://github.com/ros2-java/ros2_java/issues/137.

Any help in with this is much appreciated.