I design and build production-ready Android SDKs and libraries that prioritize Clean Architecture, comprehensive testing, and exceptional developer experience. My approach transforms complex functionality into elegant, reusable components that other developers love to use.
🎯 SDK Development Philosophy
My SDK development emphasizes:
- Clean Architecture - SOLID principles, separation of concerns, and modular design
- Testing First - 90%+ code coverage with comprehensive unit tests and automated CI/CD
- Developer Experience - Intuitive APIs, reactive patterns, and thorough documentation
- Production Ready - Thread-safe, performance-optimized, and battle-tested
📦 BarcodeScannerSDK
A production-ready Android SDK for real-time barcode scanning powered by Google ML Kit. This SDK demonstrates enterprise-grade mobile engineering with Clean Architecture, comprehensive testing, and modern Android best practices.
✨ Key Features
- 📷 Real-time Camera Scanning - Instant barcode detection from camera feed
- 🎯 Multi-Format Support - QR Code, EAN-13, EAN-8, UPC-A, UPC-E, Code-39, Code-93, Code-128, ITF, Codabar, PDF417, Aztec, Data Matrix
- ⚡ High Performance - Optimized ML Kit integration with efficient image processing
- 🔄 Reactive API - Flow-based API for seamless integration with modern Android apps
- 🧪 Fully Tested - 90%+ test coverage with 24 comprehensive unit tests
- 🏗️ Clean Architecture - SOLID principles, dependency injection, modular design
- 🔒 Thread-Safe - Safe for concurrent usage in production environments
- 📦 Lightweight - Minimal dependencies, small footprint
🏗️ Architecture Highlights
The SDK showcases professional Android engineering:
- Clean Architecture - Clear separation between domain, data, and presentation layers
- Dependency Injection - Hilt for testability and modularity
- Reactive Patterns - Kotlin Coroutines and Flow for asynchronous operations
- SOLID Principles - Single responsibility, open/closed, dependency inversion
- Interface Segregation - Clean, focused interfaces for easy mocking and testing
Key Components:
BarcodeSDK- Main entry point for SDK initializationBarcodeScanner- Core interface for barcode scanning operationsBarcodeResult- Immutable data model for scanned barcodesMlKitBarcodeScanner- ML Kit implementation with optimized processing
🧪 Testing & Quality
Comprehensive testing ensures production reliability:
- ✅ 24 Unit Tests - Covering all critical paths and edge cases
- ✅ 90%+ Code Coverage - Verified with JaCoCo reports
- ✅ Automated CI/CD - GitHub Actions for continuous testing
- ✅ Mock-Based Testing - Using MockK for isolated unit tests
- ✅ Thread-Safety Tests - Ensuring concurrent usage safety
🛠 Technical Stack
- Language: Kotlin 2.0+
- ML Framework: Google ML Kit Barcode Scanning
- Concurrency: Kotlin Coroutines & Flow
- DI Framework: Dagger Hilt
- Sample UI: Jetpack Compose with Material Design 3
- Camera: CameraX for modern camera integration
- Build System: Gradle 8.11.1+
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Min SDK: 24 (Android 7.0) Target SDK: 35 (Android 15)
📱 Sample Application
The included sample app demonstrates best practices:
- ✅ CameraX integration with lifecycle awareness
- ✅ Real-time barcode scanning with visual feedback
- ✅ Modern Jetpack Compose UI
- ✅ Comprehensive error handling
- ✅ Runtime permission management
- ✅ Result display with barcode details
🏆 What This SDK Demonstrates
This project showcases:
- ✅ Enterprise-Grade Architecture - Not just apps, but reusable, well-architected SDKs
- ✅ Testing Discipline - 90%+ coverage shows commitment to quality and reliability
- ✅ Modern Android Mastery - Kotlin, Coroutines, Flow, Compose, Hilt
- ✅ ML Integration - Practical application of ML Kit for real-world problems
- ✅ Production Readiness - Thread-safe, error handling, performance optimized
- ✅ Developer Focus - Clean APIs, comprehensive docs, easy integration
🚀 Coming Soon
More production-ready SDKs and libraries showcasing modern Android development, Clean Architecture, and comprehensive testing practices.
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