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projects/qr-barcode-scanner Back
QR & Barcode Scanner
A lightweight Android utility for scanning QR codes and barcodes with fast recognition, practical everyday use, and a streamlined mobile interface.
Overview
A mobile scanning utility designed to help users quickly capture and read QR codes or barcodes through a clean and efficient Android workflow.
Tech stack
KotlinXMLMVVMClean ArchitectureAndroid SDKCamera APIs
Problem solved
Users needed a dependable scanning tool that can quickly process QR codes and barcodes without unnecessary complexity or slow interaction.
Architecture
MVVM-based utility application structure with camera-driven scanning flows and clear separation between scan processing and UI state.
PresentationCompose / View
DomainUse cases
DataRepository
Key features
- QR and barcode scanning
- Fast camera-based recognition
- Simple scan result handling
- Utility-first user experience
Engineering challenges
- Keeping camera scanning responsive across devices
- Presenting scan results clearly for immediate action
- Maintaining a fast, low-friction workflow for repeated use
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