material-components_material-components-android/docs/directorystructure.md

Material component directory structure

All of the Material Components are located under lib/. The library is sub-divided into:

• base/
• platform-specific overrides
• src/

Any widgets that require a platform-specific implementation can be found in the base/ directory, while all other widgets are located under src/.

Classes in the library are separated into two directories:

• internal/
• widget/

Classes in widget/ comprise the public API; these can be used directly in your applications. Classes in internal/ are part of the protected API and are used to support the public API classes.