flutter▌

Measure and optimize Flutter app bundle, APK, or IPA size with platform-specific analysis and reduction strategies. \n \n Supports Android (APK/AppBundle), iOS (IPA), and desktop platforms (Linux, macOS, Windows) with platform-specific measurement workflows \n Generates code size analysis JSON files via flutter build --analyze-size and integrates with Dart DevTools App Size Tool for component breakdown visualization \n Implements size reduction through debug info splitting, asset compression, an

Migrate Flutter apps from Material 2 to Material 3 with automated component and theme updates. \n \n Identifies and replaces deprecated Material 2 components (FlatButton, RaisedButton, BottomNavigationBar, Drawer) with their Material 3 equivalents using a decision tree \n Converts legacy theme properties to Material 3 ColorScheme and removes deprecated accent color references (accentColor, accentColorBrightness, etc.) \n Normalizes all component themes to use *ThemeData classes and ensures useMa

Comprehensive caching and performance optimization for Flutter apps across multiple data types and platforms. \n \n Provides decision logic to select appropriate caching mechanisms: in-memory, shared_preferences for key-value pairs, SQLite for relational data, file system for large blobs, and image caching for network images \n Includes stream-based offline-first repository pattern that yields cached data first, then fetches and updates from the network \n Covers Android FlutterEngine pre-warmin

Embed native Android, iOS, or macOS views and web content directly into Flutter applications. \n \n Supports two Android composition modes (Hybrid and Texture Layer) with distinct performance and fidelity tradeoffs; iOS and macOS use Hybrid Composition exclusively \n Includes step-by-step workflows for implementing platform views on Android and iOS, with validation and troubleshooting guidance \n Enables embedding Flutter into existing web applications via Full Page or Multi-view (Embedded) mode

HTTP requests and JSON serialization for Flutter REST API integration and data parsing. \n \n Covers three HTTP methods (GET, POST, PUT, DELETE) with proper status code validation, HTTPS enforcement, and safe URI construction using Uri.https() . \n Offers two serialization strategies: manual fromJson / toJson for simple models, and code generation with json_serializable for complex nested structures. \n Includes background parsing with compute() to prevent UI jank when processing large JSON payl

Comprehensive guide for implementing animations in Flutter with decision trees and patterns for every animation type. \n \n Covers five animation approaches: implicit animations (AnimatedContainer, AnimatedOpacity, TweenAnimationBuilder), explicit animations (AnimationController, Tween, AnimatedWidget/AnimatedBuilder), hero animations (shared element transitions), staggered animations (sequential/overlapping with Interval timing), and physics-based animations (spring, gravity, fling) \n Includes

This skill enforces BLoC state management, strict layer separation, and mandatory use of design system constants for all Flutter development in this codebase.

Implements stateful form validation in Flutter using Form, TextFormField, and GlobalKey<FormState>. Manages validation state efficiently without unnecessary key regeneration and handles user input validation workflows. Assumes a pre-existing Flutter environment with Material Design dependencies available.

Provides cross-platform mobile development expertise specializing in Flutter 3+, Dart programming, and Riverpod state management. Builds high-fidelity applications for Mobile, Web, and Desktop with advanced rendering optimization (Impeller), custom render objects, and native integrations via FFI and Method Channels.

sentry-flutter-sdk