SonarQube does exactly what you're looking for.
EDIT:
These docs will help if you haven't found them already.
The Android plugin will also be very useful to you.
Question
I have been searching internet for hours now and have not got any working solutions yet.
The question is simple: how to get test code coverage in Android maven project using Robolectric as testing library?
I have tried JaCoCo and Cobertura but no success. There is always some kind of error. I think my problem is that I just can't install right code coverage plugin for Maven correctly. I know there is plenty of example POM files and code snippets, but I have not got any luck there.
Robolectric is btw working correclty.
My project dir looks like this:
| parent project
|-- app project
|-- test project
Thanks for helping me out!
La solution
SonarQube does exactly what you're looking for.
EDIT:
These docs will help if you haven't found them already.
The Android plugin will also be very useful to you.