nextcloud-android/libs/android-support-appcompat-v7-exploded-aar
..
libs
res
src
.classpath
.project
AndroidManifest.xml
build.xml
project.properties
R.txt
README.txt

Library Project including compatibility ActionBar.

This can be used by an Android project to provide
access to ActionBar on applications running on API 7+.

There is technically no source, but the src folder is necessary
to ensure that the build system works.  The content is actually
located in libs/android-support-v7-appcompat.jar.
The accompanying resources must also be included in the application.