Android Archetype - android-library-project
· Creates a skeleton for a complete Android library (including application with instrumentation tests and ready-to-publish application on releases)
Download JD-GUI to open JAR file and explore Java source code file (.class .java)
Click menu "File → Open File..." or just drag-and-drop the JAR file in the JD-GUI window android-library-project-0.3.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.