CameraKit (Support Camera Common)
· Provides all-in-one solution Android View that renders a camera preview through the CameraKit SDK, configured with defaults but open to customization.
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 support-camera-layout-1.25.0.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.