android-pie-chart
· A library for creating pie charts and donut charts in Android.
The aim of this library is to provide a full-featured chart view and to enable users to customize it to the most extent possible.
Visit the project on GitHub to learn more.
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 pie-chart-0.7.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.