If you visit the JavaDocs for a widget, such as the JavaDocs for TextView, you will see
an “XML Attributes” table near the top. This lists all of the attributes defined
uniquely on this class, and the “Inherited XML Attributes” table that follows lists all
those that the widget inherits from superclasses, such as View. Of course, the
JavaDocs also list the fields, constants, constructors, and public/protected methods
that you can use on the widget itself.