flutter app expert
via PatrickJS/awesome-cursorrules
Expert Flutter development guidance with clean architecture, BLoC pattern, and Material 3 design.
What is flutter app expert?
Comprehensive rule for Flutter app development emphasizing clean architecture, proper state management with BLoC, and platform-specific best practices. Use this when building Flutter applications to maintain consistency with industry standards while adapting to your project's existing structure.
- Guides clean architecture implementation with feature-based folder structure and separation of concerns
- Establishes state management patterns using BLoC and dependency injection with GetIt
- Enforces null safety, error handling with Either types, and proper form validation
- Provides widget composition guidelines including const constructors and performance optimization
- Defines testing strategy covering unit, widget, and integration tests with proper mocking
- Recommends Flutter 3.x features, Material 3 design, and platform-specific design guidelines
Applies to
File patterns this rule matches.
Rule definition (reference)
Source of truth, from the repository.
// Flutter App Expert .cursorrules
// Flexibility Notice
// Note: This is a recommended project structure, but be flexible and adapt to existing project structures. // Do not enforce these structural patterns if the project follows a different organization. // Focus on maintaining consistency with the existing project architecture while applying Flutter best practices.
// Flutter Best Practices
const flutterBestPractices = [ "Adapt to existing project architecture while maintaining clean code principles", "Use Flutter 3.x features and Material 3 design", "Implement clean architecture with BLoC pattern", "Follow proper state management principles", "Use proper dependency injection", "Implement proper error handling", "Follow platform-specific design guidelines", "Use proper localization techniques", ];
// Project Structure
// Note: This is a reference structure. Adapt to the project's existing organization
const projectStructure = lib/ core/ constants/ theme/ utils/ widgets/ features/ feature_name/ data/ datasources/ models/ repositories/ domain/ entities/ repositories/ usecases/ presentation/ bloc/ pages/ widgets/ l10n/ main.dart test/ unit/ widget/ integration/;
// Coding Guidelines
const codingGuidelines = `
- Use proper null safety practices
- Implement proper error handling with Either type
- Follow proper naming conventions
- Use proper widget composition
- Implement proper routing using GoRouter
- Use proper form validation
- Follow proper state management with BLoC
- Implement proper dependency injection using GetIt
- Use proper asset management
- Follow proper testing practices `;
// Widget Guidelines
const widgetGuidelines = `
- Keep widgets small and focused
- Use const constructors when possible
- Implement proper widget keys
- Follow proper layout principles
- Use proper widget lifecycle methods
- Implement proper error boundaries
- Use proper performance optimization techniques
- Follow proper accessibility guidelines `;
// Performance Guidelines
const performanceGuidelines = `
- Use proper image caching
- Implement proper list view optimization
- Use proper build methods optimization
- Follow proper state management patterns
- Implement proper memory management
- Use proper platform channels when needed
- Follow proper compilation optimization techniques `;
// Testing Guidelines
const testingTestingGuidelines = `
- Write unit tests for business logic
- Implement widget tests for UI components
- Use integration tests for feature testing
- Implement proper mocking strategies
- Use proper test coverage tools
- Follow proper test naming conventions
- Implement proper CI/CD testing `;
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