Android Shake Detector Library
· This library provides a easy way to detect a shake movement using the build-in accelerometer and fire a callback on the UI thread every times it happens.
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 library-1.0.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.