Android Switch Backport
· A backport of the Switch widget (http://developer.android.com/reference/android/widget/Switch.html)
that was introduced on Android 4.
This port works on Android 2.1+.
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-switch-backport-1.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.