datetimepicker
· The framework version of the material date / time pickers of Android ported back to API 14. This library uses the AppCompat library to provide the necessary functions for new features, such as vector drawables and material design.
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 datetimepicker-1.0.3.jar file.
Once you open a JAR file, all the java classes in the JAR file will be displayed.
