Riverpod — Scoping providers

Instructions

Scoping means changing a provider's behavior for only part of the app by overriding it in a non-root ProviderScope. Use cases: page-specific customization (e.g. theme for one page), performance (e.g. rebuild only the item that changed in a ListView), or avoiding passing family parameters through the tree.

Note: Scoping is complex and may be reworked in future Riverpod versions. Use with care.

Opt-in: dependencies

By default you cannot scope a provider. Opt in by setting dependencies on the provider. The first scoped provider usually has dependencies: const [].

final currentItemIdProvider = Provider<String?>(
  dependencies: const [],
  (ref) => null,
);