T extends Widget, U> class
An interface for controlling a feature of a Scaffold.
- close → VoidCallback
Remove the feature (e.g., bottom sheet, snack bar, or material banner) from the scaffold.
Completes when the feature controlled by this object is no longer visible.
- hashCode → int
The hash code for this object.
- runtimeType → Type
A representation of the runtime type of the object.
- setState → StateSetter?
Mark the feature (e.g., bottom sheet or snack bar) as needing to rebuild.