If all the dependencies are satisfied, you can easily build the ROS-Android interface and build a bunch of Android-ROS applications. Here is how we can do that:

Initially, we have to create a workspace folder for the Android interface. We can name it android_core:

$ mkdir -p ~/android_core

After creating this folder, you can initialize the workspace using the following command:

wstool init -j4 ~/android_core/src https://raw.github.com/rosjava/rosjava/indigo/android_core.rosinstall

Now switch to the workspace and build the workspace using catkin_make:

$ cd ~/android_core
$ catkin_make

After building the workspace successfully, you can source it by adding it to .bashrc:

$ echo 'source ~/android_core /devel/setup.bash' >> ~/.bashrc

You are now done with setting up the android_core package in ROS. So what do you get after building this workspace? You will get a bunch of Android-ROS applications that can be installed on your Android device. You will also...