Your complete guide to mastering Android interviews and landing your dream job
This is the most comprehensive Android Interview Preparation repository available. It covers everything you need to know for Android interviews at top tech companies like Google, Meta, Amazon, and Netflix.
- 120+ Interview Questions with detailed answers
- 600+ Production-Ready Kotlin Code Examples
- 15+ Comprehensive Topics covering all aspects of Android
- Architecture Patterns: MVVM, MVI, Clean Architecture
- Modern Android: Jetpack Compose, Coroutines, Flows, KMM
- Best Practices from industry experts
- Real-world Scenarios and use cases
| # | Topic | Questions | Focus Areas |
|---|---|---|---|
| 1 | Introduction | 7 | Interview strategies, preparation timeline |
| 2 | Android Basics | 7 | Lifecycle, Intents, Permissions |
| 3 | Kotlin Programming | 8 | Null safety, Coroutines, Scope functions |
| 4 | Java vs Kotlin | 10 | Language comparison, Migration |
| 5 | Android Architecture | 12 | MVVM, MVI, Clean Architecture |
| 6 | Jetpack Compose | 10 | State management, Recomposition |
| 7 | MVI Pattern | 8 | Unidirectional data flow |
| 8 | Android KMM | 7 | Multiplatform development |
| 9 | Coroutines & Flows | 10 | Async programming, StateFlow |
| 10 | Data Persistence | 7 | Room, DataStore, Offline-first |
| 11 | Networking | 8 | Retrofit, OkHttp, Ktor |
| 12 | Dependency Injection | 7 | Hilt, Koin, Dagger |
| 13 | Memory Management | 7 | GC, Memory leaks, Optimization |
| 14 | Testing | 7 | Unit, Integration, UI tests |
| 15 | Gradle & Maven | 7 | Build system mastery |
| 16 | Publishing to Play Store | 9 | Complete publishing guide |
| 17 | Security | 7 | App security, SSL Pinning |
| 18 | Advanced Topics | 7 | Enterprise-level concepts |
Total: 120+ Questions | 600+ Code Examples | 100% Coverage
Week 1-2: Fundamentals
Week 3-4: Core Concepts
Focus Areas:
Master These:
- 📙 MVI Pattern
- 📙 Android KMM
- 📙 Memory Management
- 📙 Testing
- 📙 Security
Deep Dive Into:
1. Pick a topic from the list
2. Read the explanations thoroughly
3. Study all code examples
4. Try answering questions before reading solutions
5. Implement code examples yourself
6. Move to the next topic
1. Go through questions in each topic
2. Practice answering out loud
3. Write code on whiteboard/paper
4. Review best practices
5. Focus on weak areas
1. Use QUESTIONS_INDEX.md for quick lookup
2. Focus on frequently asked questions
3. Review code examples for important topics
4. Update your knowledge base
| Category | Count |
|---|---|
| Topics Covered | 15+ |
| Interview Questions | 120+ |
| Code Examples | 600+ |
| Architecture Patterns | 8+ |
| Best Practices | 50+ |
| Real-world Scenarios | 100+ |
- ✅ Android Basics
- ✅ Kotlin Programming
- ✅ Java vs Kotlin
- ✅ Data Persistence
- ✅ Networking
- ✅ Android Architecture
- ✅ Dependency Injection
- ✅ Coroutines & Flows
- ✅ Memory Management
- ✅ Testing
- ✅ Jetpack Compose
- ✅ MVI Pattern
- ✅ Security
- ✅ Advanced Topics
- ✅ Android KMM
- ✅ Gradle & Maven
- ✅ Publishing to Play Store
- ✅ Architecture Design
- ✅ Performance Optimization
- ✅ Team Leadership Skills
We welcome contributions! Here's how you can help:
- Report Issues: Found a bug? Open an issue
- Suggest Improvements: Have ideas? Share them
- Submit Pull Requests: Improve content or add examples
- Share with Friends: Help others prepare for interviews
See CONTRIBUTING.md for detailed guidelines.
This project is licensed under the MIT License - see the LICENSE file for details.
- Android Developer Community
- JetBrains for Kotlin
- Google for Android
- All contributors who made this guide possible
- Issues: GitHub Issues
- Discussions: GitHub Discussions
- Email: jogimukund@gmail.com
If you find this guide helpful, please consider giving it a star ⭐ on GitHub!
Made with ❤️ by the Android Developer Community
Android ecosystem evolves rapidly. Always check:
- Practice Coding: Don't just read, implement!
- Mock Interviews: Practice with friends
- Stay Current: Android changes fast
- Understand Why: Don't memorize, understand
- Build Projects: Apply knowledge in real apps
- Research Company: Understand their tech stack
- Prepare Questions: Ask insightful questions
- Show Enthusiasm: Be passionate about Android
- Explain Thought Process: Walk through solutions
- Admit When Uncertain: Honesty is appreciated
Start your journey today and ace your next Android interview! 🚀