android-shape-imageview
· Provides a set of custom shaped android imageview components, and a framework to define more shapes. Implements both shader and bitmap mask based image views. Shader based one uses canvas draw methods and Path construct, Mask based one uses xfermode to draw image on bitmaps defined by android shape XML's or resource bitmaps.
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-shape-imageview-0.9.3.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.