I want to compile android telephony API from the source for my research project, here is the link to Git:
https://android.googlesource.com/platform/frameworks/opt/telephony/
The repo contain an Android.mk file and full of java codes, how can I compile it? I tried ndk-build command but I got the following warning:
Android NDK: WARNING: There are no modules to build in this project!
Any Ideas?