Power Adapters (recyclerview-v7)
· Universal Android adapter interface combined with a collection of utility adapters like headers, loading indicators, and dividers.
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 power-adapters-recyclerview-v7-0.26.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.