A full-featured e-commerce app I built to practice and showcase Clean Architecture with Jetpack Compose. It covers the entire shopping flow — from browsing products to placing orders — with offline support, encrypted login, and a clean UI.
I wanted to go beyond a simple demo and build something that feels like a real app, with proper architecture layers, local caching, and attention to detail in the UI.
- Browse & Search — Explore products by category, search by name, and sort/filter results
- Product Detail — Image gallery, pricing, reviews, and add-to-cart in one place
- Cart & Checkout — Update quantities, apply promo codes, enter shipping details, and place orders
- Order Tracking — View order history with status timeline and payment summary
- Favorites — Save products you like, persisted locally
- Address Management — Add and manage delivery addresses with phone number validation
- User Profile — View account info, toggle dark mode, manage notification preferences
- Secure Login — Credentials encrypted with AES-256 via EncryptedSharedPreferences
- Offline First — Cached data loads instantly, fresh data syncs in the background
- Dark Mode — Full dark theme support across all screens
| Layer | Tech |
|---|---|
| UI | Jetpack Compose, Material 3, Coil (images + SVG) |
| Architecture | Clean Architecture, MVVM, Koin (DI) |
| Async | Kotlin Coroutines & Flow |
| Network | Retrofit + OkHttp with logging |
| Local Storage | Room Database with migrations |
| Security | EncryptedSharedPreferences (AES-256) |
| Navigation | Type-safe Compose Navigation |
The app follows a Clean Architecture pattern with three layers. Each feature module (home, cart, orders, etc.) is self-contained with its own data, domain, and presentation layers.
Presentation (Compose UI + ViewModel)
↓
Domain (Use Cases + Repository interfaces)
↓
Data (Repository impl → Remote API + Local DB)
The data layer uses a local-first approach — Room provides cached data immediately while Retrofit fetches fresh data in the background. This means the app works even without an internet connection.
- Clone the repo and open in Android Studio
- Sync Gradle and hit Run
Demo credentials:
Username: emilys
Password: emilyspass
The app uses DummyJSON API for product and user data.
Requirements: Android 7.0+ (API 24) | JDK 11+
Built by Khawaja Moiz — feel free to reach out!
Email: khwajamoiz406@gmail.com
MIT License — see LICENSE for details.