6 月 3 日の「#Android11: The Beta Launch Show」にぜひご参加ください。

androidx.appcompat.view

Interfaces

ActionMode.Callback Callback interface for action modes. 
CollapsibleActionView This interface is deprecated. Use the platform-provided CollapsibleActionView interface.  

Classes

ActionMode Represents a contextual mode of the user interface. 
ContextThemeWrapper A context wrapper that allows you to modify or replace the theme of the wrapped context.