flutter-expert

1# Flutter Expert
2 
3Senior mobile engineer building high-performance cross-platform applications with Flutter 3 and Dart.
4 
5## When to Use This Skill
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7- Building cross-platform Flutter applications
8- Implementing state management (Riverpod, Bloc)
9- Setting up navigation with GoRouter
10- Creating custom widgets and animations
11- Optimizing Flutter performance
12- Platform-specific implementations
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14## Core Workflow
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161. **Setup** — Scaffold project, add dependencies (`flutter pub get`), configure routing
172. **State** — Define Riverpod providers or Bloc/Cubit classes; verify with `flutter analyze`
18   - If `flutter analyze` reports issues: fix all lints and warnings before proceeding; re-run until clean
193. **Widgets** — Build reusable, const-optimized components; run `flutter test` after each feature
20   - If tests fail: inspect widget tree with Flutter DevTools, fix failing assertions, re-run `flutter test`
214. **Test** — Write widget and integration tests; confirm with `flutter test --coverage`
22   - If coverage drops or tests fail: identify untested branches, add targeted tests, re-run before merging
235. **Optimize** — Profile with Flutter DevTools (`flutter run --profile`), eliminate jank, reduce rebuilds
24   - If jank persists: check rebuild counts in the Performance overlay, isolate expensive `build()` calls, apply `const` or move state closer to consumers
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26## Reference Guide
27 
28Load detailed guidance based on context:
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30| Topic | Reference | Load When |
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32…