flutter▌

Duit enables backend-driven UI in Flutter applications. The server controls both data and layout via JSON, allowing UI updates without app releases.

Secure HTTP networking and JSON handling for Flutter apps with background parsing support. \n \n Implements CRUD operations (GET, POST, PUT, DELETE) using the http package with safe URL construction via Uri.https() and strict status code validation \n Provides strongly typed JSON serialization and deserialization using Dart 3 pattern matching with factory constructors and toJson() methods \n Offloads large JSON parsing to background isolates via compute() to prevent UI jank on payloads exceeding

Implement WCAG 2 and EN 301 549 accessibility standards and adaptive layouts in Flutter apps. \n \n Enforces semantic annotations, tap target sizes (48x48 dp minimum), and text contrast ratios (4.5:1 for small text, 3:1 for large) across mobile, web, and desktop platforms \n Provides decision logic for web semantics initialization, interactive widget wrapping, screen-size-based layout switching, and keyboard/mouse input handling \n Includes focus traversal management via FocusTraversalGroup and

Scaffolds Flutter plugins with native interop, method channels, FFI integration, and federated architectures. \n \n Generates standard plugins, FFI plugins, or federated multi-package architectures based on native code requirements and team structure \n Configures Android v2 embedding lifecycle interfaces, platform-specific native environments (Kotlin/Java, Swift/Objective-C), and method channel registration \n Implements package-separated federated plugins with app-facing and platform-specific

Embed native views and web content into Flutter apps across Android, iOS, macOS, and web platforms. \n \n Supports Android Hybrid Composition (native fidelity) and Texture Layer (Flutter performance), iOS/macOS Hybrid Composition, and web full-page or embedded multi-view modes \n Provides complete Dart and native code templates (Kotlin for Android, Swift for iOS/macOS, JavaScript for web) with factory registration patterns \n Requires decision tree upfront to determine target platform and embedd

Background JSON parsing and state management for jank-free Flutter UI rendering. \n \n Provides decision tree for choosing between manual serialization ( dart:convert ) and code generation ( json_serializable ) based on model complexity \n Supports three concurrency strategies: main-thread async/await for small payloads, short-lived Isolate.run() for heavy one-off computations, and long-lived isolates with ReceivePort / SendPort for continuous two-way communication \n Includes platform-aware fal

Generates unit, widget, integration, and plugin tests for Flutter applications with architectural awareness. \n \n Analyzes target code to determine appropriate test type (unit for logic, widget for UI, integration for end-to-end, plugin for native code) \n Provides decision tree and step-by-step implementation patterns for each test category, including fake/mock setup and assertion strategies \n Includes ready-to-use code templates for ViewModels, Repositories, widgets, and full app flows with

Cross-platform native interoperability for Flutter apps on Android, iOS, and Web. \n \n Provides decision logic to select the optimal integration strategy: FFI for C/C++ code, Platform Channels for OS-specific APIs, Platform Views for native UI components, and JS Interop for web \n Implements modern FFI architecture using build hooks (Flutter 3.38+) with native toolchain compilation and Dart bindings \n Supports asynchronous Platform Channels (MethodChannel) with complete Kotlin and Swift implem

MVVM architecture for Flutter apps with unidirectional data flow and strict layer separation. \n \n Implements three-layer architecture: Data Layer (Services and Repositories), Domain Layer (UseCases for complex logic), and UI Layer (ViewModels and Views) \n Uses provider for dependency injection and ListenableBuilder for reactive UI updates with the Command pattern for user interactions \n Enforces unidirectional data flow: data flows down from Repositories to ViewModels to Views; events flow u

Implement MVVM and Unidirectional Data Flow patterns for Flutter state management. \n \n Provides decision logic to differentiate between ephemeral state (local UI state via setState ) and app state (shared state via MVVM and provider package) \n Enforces strict separation of concerns: data layer (Repository as Single Source of Truth), logic layer (ViewModel extending ChangeNotifier ), and UI layer (pure functions of immutable state) \n Includes complete code examples for implementing the MVVM p