dart-expert

To manage state in Flutter using Provider, you wrap your widget tree with a ChangeNotifierProvider and call notifyListeners within your model classes to update the UI. This Skill provides code examples for implementing this pattern effectively.

Asynchronous programming in Dart is best handled using Futures and async/await syntax to execute long-running tasks without blocking the UI thread. This Skill covers Streams, Future handling, and proper error management techniques.

To integrate HTTP requests and parse JSON in a Flutter app, you use Dart's http package to fetch data and dart:convert to serialize the JSON responses into Dart objects. This Skill provides code examples for handling API integration.

Dart's null safety works directly with Flutter's stateless and stateful widgets by enforcing compile-time checks for null references within your widget properties and state variables. This Skill explains how to implement null safety across your Flutter applications.

You should use Dart mixins to reuse code across multiple class hierarchies and extensions to add functionality to existing classes without modifying them in cross-platform mobile development. This Skill covers these language fundamentals for structuring your app logic.

Your Flutter widget fails to update after an API call if the state management pattern is not correctly triggering a rebuild or if the FutureBuilder lacks proper connection state handling. This Skill addresses asynchronous error handling and widget rebuilds.