This is a tracking issue for adding interactive code samples (with {@tool dartpad}) to components and widgets which support Material 3.

We should consider leveraging existing existing code samples by either

• wrapping existing samples with a common widget which shows a toggle to switch the sample to Material 3, at some point, have that be the default (preferred, IMO)
• copy the simplest existing sample and adding useMaterial3: true

For new Material 3-only widgets, such as NavigationBar, the API doc will only show the Material 3 look.

cc @darrenaustin WDYT?

Components

• Buttons
• Add Material 3 FloatingActionButton and FloatingActionButton variants examples #101105
• Migrate Card widget to support Material 3 #100532
• Add Material 3 Dialog examples and update existing Dialog examples #101508
• NavigationBar
• Add Material 3 NavigationRail example and improve Material 2 example #101345
• Add Material 3 AppBar example #102823 and Add support for Material 3 medium and large top app bars. #103962

Other widgets