👋 Welcome to HandsOnAndroid
Your 90-day journey from Beginner to Android Pro starts here!
- 🛠️ Build real projects
- 🎯 Master Jetpack Compose
- 📦 Learn modern Android architecture
- 🔥 100% free, daily blog posts!
🧠 What You’ll Learn
- ✅ Kotlin basics for Android
- ✅ Jetpack Compose UI
- ✅ MVVM architecture & Clean Code
- ✅ Firebase, APIs, Room DB
- ✅ GitHub CI/CD, Testing & Debugging
- ✅ Launch-ready apps and portfolio projects
✅ Phase 1 (Days 1–30): Beginner to Master Roadmap
| Day | Blog Title | Content Focus | Level |
|---|---|---|---|
| 1 | What is Android Development? | Overview + ecosystem | Beginner |
| 2 | Setting Up Android Studio | Installation + setup | Beginner |
| 3 | Java vs Kotlin for Android | Language comparison | Beginner |
| 4 | Your First Android App | Hello World in Compose | Beginner |
| 5 | Activities & Intents | Screen navigation | Beginner |
| 6 | Understanding the Android Lifecycle | Lifecycle states | Beginner |
| 7 | Introduction to Jetpack Compose | Basics of declarative UI | Beginner |
| 8 | Layouts in Jetpack Compose | Column, Row, Box | Beginner |
| 9 | State in Jetpack Compose | remember, mutableStateOf | Beginner |
| 10 | Introduction to MVVM in Android | Clean code structure | Beginner |
| 11 | ViewModels Explained | Lifecycle-aware logic | Beginner |
| 12 | LiveData vs StateFlow | Reactive programming | Intermediate |
| 13 | Handling User Input in Compose | TextField, Button | Beginner |
| 14 | RecyclerView vs LazyColumn | Lists in Compose | Intermediate |
| 15 | Navigation in Android Apps | Jetpack Navigation Component | Intermediate |
| 16 | Using Material Design 3 | Theming your UI | Intermediate |
| 17 | Working with Images in Compose | Image, Coil | Intermediate |
| 18 | Room Database Basics | Local storage | Intermediate |
| 19 | CRUD Operations with Room | Practical database usage | Intermediate |
| 20 | Connecting to REST APIs with Retrofit | API integration | Intermediate |
| 21 | Parsing JSON with Kotlin Serialization | Light, fast parsing | Intermediate |
| 22 | Showing Loading and Error States | UX best practices | Intermediate |
| 23 | Using Hilt for Dependency Injection | DI for Android | Intermediate |
| 24 | Saving Preferences with DataStore | Replacing SharedPreferences | Intermediate |
| 25 | Firebase Setup in Android | Realtime DB/Auth basics | Intermediate |
| 26 | Sending Push Notifications | Firebase Cloud Messaging | Intermediate |
| 27 | Creating a Splash Screen | App launch design | Intermediate |
| 28 | Adding Dark Mode Support | Theme switching | Intermediate |
| 29 | Publishing to Google Play | App signing & release | Intermediate |
| 30 | Recap: What You’ve Learned in 30 Days | Reflection & motivation | All |
🔍 Phase 2 (Days 31–60): Deep Dives & Intermediate Topics
| Day | Blog Title | Content Focus | Level |
|---|---|---|---|
| 31 | Clean Architecture in Android | Layers + benefits | Intermediate |
| 32 | Jetpack WorkManager Tutorial | Background tasks | Intermediate |
| 33 | In-App Navigation with Arguments | Passing data | Intermediate |
| 34 | Understanding Coroutines in Android | Async programming | Intermediate |
| 35 | Handling Permissions | Runtime permission handling | Intermediate |
| 36 | ExoPlayer Basics | Media playback | Intermediate |
| 37 | Custom Dialogs in Compose | Reusable UI components | Intermediate |
| 38 | Biometric Authentication | Fingerprint/Face unlock | Intermediate |
| 39 | Uploading Images to Firebase | Storage integration | Intermediate |
| 40 | Unit Testing in Android | Writing testable code | Intermediate |
| 41 | UI Testing with Espresso | Automated UI tests | Intermediate |
| 42 | Jetpack Compose Testing | Compose UI testing | Intermediate |
| 43 | Using CameraX | Taking photos | Intermediate |
| 44 | App Localization | Multi-language apps | Intermediate |
| 45 | Jetpack Compose Animations | Transitions, gestures | Intermediate |
| 46 | Sharing Content with Intents | Files, links, text | Intermediate |
| 47 | Jetpack Paging 3 | Large data sets | Advanced |
| 48 | Bluetooth Communication | Device-to-device | Advanced |
| 49 | NFC Tag Reading | Smart card/tags | Advanced |
| 50 | Custom Views in Compose | Advanced composables | Advanced |
| 51 | Handling Deep Links | Dynamic links + URLs | Intermediate |
| 52 | Building a Todo App | Mini-project | Intermediate |
| 53 | Implementing Logout & Session | Auth flow | Intermediate |
| 54 | Using Google Maps API | Map integration | Intermediate |
| 55 | Implementing Search Feature | TextField + Filter | Intermediate |
| 56 | Drag & Drop in Compose | UX interactions | Advanced |
| 57 | Accessibility in Android | Inclusive design | Intermediate |
| 58 | App Monetization Models | Ads, IAP, subscriptions | Beginner+ |
| 59 | Using App Bundles (AAB) | Better Play Store builds | Intermediate |
| 60 | Jetpack Compose vs XML: Final Verdict | Modern UI direction | All |
🚀 Phase 3 (Days 61–90): Real Projects + Pro Topics
| Day | Blog Title | Content Focus | Level |
|---|---|---|---|
| 61 | How to Build a Weather App | API + Jetpack Compose | Intermediate |
| 62 | Building a Notes App with Room | Offline storage | Intermediate |
| 63 | Chat App Using Firebase | Real-time updates | Advanced |
| 64 | Creating a Podcast Player App | ExoPlayer + API | Advanced |
| 65 | Instagram-like Image Feed | Coil, LazyColumn, Paging | Advanced |
| 66 | Quiz App with Scoreboard | State management | Intermediate |
| 67 | Working with GraphQL in Android | Apollo client | Advanced |
| 68 | Mastering Kotlin Flows | Reactive UI | Advanced |
| 69 | Offline-First App Architecture | Sync strategies | Advanced |
| 70 | Using Jetpack Glance (Widgets) | Home screen widgets | Intermediate |
| 71 | Publish App with CI/CD | GitHub Actions | Advanced |
| 72 | Crashlytics Integration | App stability | Intermediate |
| 73 | Proguard & R8 Tips | App security | Advanced |
| 74 | Jetpack Compose Multiplatform (JCM) | KMP for UI | Advanced |
| 75 | Android TV App Basics | Leanback support | Advanced |
| 76 | Android Auto Introduction | Car UX | Advanced |
| 77 | A/B Testing with Firebase | Experimentation | Advanced |
| 78 | Feature Flags with Remote Config | Live feature toggles | Advanced |
| 79 | Top 10 Android Interview Questions | Career prep | All |
| 80 | Android Portfolio: What to Include | CV + GitHub tips | All |
| 81 | Resume Tips for Android Devs | Tailored guidance | All |
| 82 | Best Android Courses in 2025 | Learning resources | All |
| 83 | Creating a Developer Blog | WordPress or Hashnode | Beginner |
| 84 | Starting a YouTube Dev Channel | Video tutorials | Beginner |
| 85 | How to Freelance as Android Dev | Business + platforms | All |
| 86 | Scaling Your Android App | Backend + analytics | Advanced |
| 87 | Open Source Contributions | GitHub + Android projects | All |
| 88 | Top 5 Android Libraries in 2025 | Retrofit, Coil, etc. | All |
| 89 | Android Dev Trends for 2025–26 | AI, Compose KMP | All |
| 90 | Recap + Your Android Dev Journey | Final reflection | All |
🛠 Tools You’ll Master
- Android Studio
- Kotlin & Jetpack Compose
- Firebase
- GitHub Actions
- REST APIs
- Retrofit, Room, Hilt, Navigation
👨💻 About HandsOnAndroid
HandsOnAndroid is built for developers who love learning by doing.
No fluff. No theory dumps. Just real apps, real code, and step-by-step guidance.