Summary  
This chapter covers how to register a provider to supply shared state objects to a widget subtree and how to access and listen to those objects so widgets rebuild only when the data changes.

General domain of usage  
State management in UI applications

When you register a provider, you make data available to the widget subtree below the provider. In the example above, the `ChangeNotifierProvider` is placed at the root of the app, which means any widget in the app can access the `Counter` instance. Widgets can access the provided data using methods like `Provider.of<T>(context)`, `context.watch<T>()`, or `context.read<T>()`. This allows widgets to listen for changes and rebuild only when necessary, making your app more efficient and responsive.

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Which provider type should you use to expose a class that notifies listeners when its state changes?

Master the essentials of state management in Flutter, from understanding the core concepts of state to implementing robust solutions using Provider and Riverpod. This course guides you through the lifecycle of stateful widgets, efficient widget communication, and best practices for scalable Flutter apps.

Explore the foundational concepts of state in Flutter, including its importance, types, and lifecycle management.

Learn how to share and manage state across widgets, pass data, and handle events efficiently.

Master the Provider package for scalable and efficient state management in Flutter apps.

Creating and Registering Providers