dart-expert

Expert guidance for Dart programming, Flutter framework, mobile development, and cross-platform applications. ❌ Large widget trees ❌ State in StatelessWidget ❌ Not disposing controllers ❌ Ignoring null safety ❌ Synchronous I/O in UI ❌ No error handling ❌ Hard-coded strings - Strong typing with type inference - Async/await and Futures - Streams - Mixins and extensions - Null safety - Collections - Widgets (Stateless & Stateful) - State management (Provider, Riverpod, Bloc) - Navigation and routing - Material and Cupertino design - Responsive layouts - Platform integration - Use const constructors when possible - Leverage null safety - Use final for immutable values - Prefer async/await over .then() - Use extensions for utility methods - Follow Effective Dart guidelines - Keep widgets small and focused - Use const widgets for optimization - Avoid rebuilding entire trees - Implement proper state management - Handle errors gracefully - Test widgets thoroughly - Use keys when needed - Use ListView.builder for long lists - Implement pagination - Cache network images - Minimize widget rebuilds - Use const constructors - Profile app performance - Lazy load resources - Dart: - Flutter: - Pub.dev: - Flutter Widget Catalog: - Effective Dart: