All Categories
270 questions across 15 categories — from beginner to expert.
Flutter Core
Widgets, lifecycle, rendering pipeline, build modes
Dart Language
Null safety, async, isolates, Dart 3 features
Widget Tree
3-tree architecture, slivers, constraints, painting
State Management
Provider, Riverpod, BLoC, GetX, decision framework
Navigation
Navigator 1 & 2, go_router, deep linking
Animations
Controllers, tweens, Hero, Rive, physics-based
Testing
Unit, widget, integration, golden, bloc_test
Performance
Rebuild optimization, memory leaks, DevTools
Architecture
Clean Architecture, DI, use cases, monorepo
BLoC Pattern
Deep dive: events, transformers, testing, patterns
Networking
http, dio, serialization, offline-first, WebSocket
OOP & SOLID
Dart OOP, SOLID principles, design patterns
DSA in Dart
Algorithms, data structures, complexity, problems
Flutter Web
Responsive, PWA, accessibility, web performance
DevOps & CI/CD
Flavors, GitHub Actions, Fastlane, app release