MaterialActionPresentationCallback<T extends Object> typedef
MaterialActionPresentationCallback<T extends Object> =
MaterialActionPresentation? Function(BuildContext context, AdaptiveAction<T> action)
Selects a Material primary-button presentation for one root action.
Return null to fall back to MaterialAdaptiveActions.presentationOverride
or, when that is also null, to automatic layout selection.
Implementation
typedef MaterialActionPresentationCallback<T extends Object> =
MaterialActionPresentation? Function(
BuildContext context,
AdaptiveAction<T> action,
);