Provider

provider is a lightweight state management approach for Flutter that wraps InheritedWidget to expose data down the widget tree in a clean, idiomatic way. It popularized simple patterns like ChangeNotifierProvider and Consumer to rebuild only the widgets that need updates. The library offers convenient providers for synchronous values, streams, and futures, plus utilities like MultiProvider and ProxyProvider to compose dependencies. Its appeal is minimal boilerplate, readability, and ease of onboarding for teams new to Flutter. Because it relies on Flutter’s core mechanisms, it integrates seamlessly with common architectural styles and existing widgets. Many apps use provider as a baseline pattern, and later evolve toward more advanced solutions as complexity grows—without discarding the conceptual model provider introduces.