PulseSnackBar class abstract final

Material 3 brand-aware snack bar helper.

Mirrors the React DS Toast (a brand-styled wrapper over sonner) as a thin wrapper over ScaffoldMessengerState.showSnackBar:

PulseSnackBar.show(
  context,
  message: '保存しました',
  variant: PulseSnackBarVariant.success,
);

PulseSnackBar.show(
  context,
  message: '保存に失敗しました',
  description: '時間をおいて再試行してください',
  variant: PulseSnackBarVariant.error,
  actionLabel: '再試行',
  onAction: () => save(),
);

Like the React toast, the surface stays neutral (colorScheme.surface background, outline border, 12px radius, floating) and the semantics are carried by the leading icon color — primary / PulseSemantics.success / PulseSemantics.warning / error.

info and error read the ColorScheme, so they follow a consumer's re-brand. success and warning do not: they are DS-owned status colors with no ColorScheme slot, and green meaning "succeeded" should not change because an app's brand did. They do flip between light and dark.

Reuses Material 3 SnackBar timing and queueing — no custom queue logic.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

show(BuildContext context, {required String message, String? description, PulseSnackBarVariant variant = PulseSnackBarVariant.info, String? actionLabel, VoidCallback? onAction, Duration duration = const Duration(milliseconds: 4000)}) → ScaffoldFeatureController<SnackBar, SnackBarClosedReason>

Builds the brand-styled SnackBar and shows it via the nearest ScaffoldMessenger. Returns the controller from ScaffoldMessengerState.showSnackBar (await closed to react to dismissal).