PubNub Android Chat Components
· Chat components provide easy-to-use building blocks to create Android chat applications, for use cases like live event messaging, telemedicine, and service desk support.
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 chat-android-0.6.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.