QR Code Scanner & Generator App
An Android utility app to scan QR/barcodes and generate custom QR codes for text, URLs, and Wi-Fi credentials.
- Suitable forB.Tech CSE students
- Build time4-6 weeks
- LevelIntermediate
- Available atAjvika Labs, Kakinada
About this project
This project is a two-in-one Android utility app: a QR/barcode scanner using the device camera, and a QR code generator that can encode plain text, URLs, contact cards (vCard), and Wi-Fi network credentials into a shareable QR image.
Scanning is implemented with CameraX combined with the ML Kit Barcode Scanning API for fast, on-device detection of multiple barcode formats (QR, EAN, Code128), while generation uses the ZXing library to render codes at a chosen size and error-correction level.
A scan-history screen (backed by Room) stores previously scanned codes with timestamps, and generated codes can be saved to the device gallery or shared directly via other apps, covering both the consumption and creation sides of QR code usage.
Detailed Project Description
QR Code Scanner & Generator App gives the user a focused everyday tool with a clean interface, local storage of their data and optional sync or reminders.
How It Works
1. The user enters or records data (amounts, steps, notes, recordings, values).
2. The app validates and stores it locally (SQLite/Room/SharedPreferences) or in the cloud.
3. Lists, totals, charts or conversions are computed and displayed instantly.
4. Reminders/notifications run in the background where the feature applies.
Technology Roles
- Android
- Java
- CameraX
- ML Kit
- ZXing
Implementation Steps
1. Sketch the screens and the data each screen needs.
2. Create the project in Android Studio, CameraX, ML Kit Barcode Scanning and set up navigation between screens.
3. Define the local data model (SQLite/Room/SharedPreferences) or cloud sync.
4. Implement the core feature (tracking, conversion, recording, reminders, playback).
5. Add background work / notifications / permissions where required.
6. Test on real devices, handle edge cases and optimise battery and performance.
7. Generate the APK and prepare screenshots and documentation.
Key Features
- Simple, fast UI
- Offline storage
- Summaries and charts
- Notifications / sync where applicable
Expected Output
On completion the student will have an installable app that keeps the user's data organised and accessible.
Deliverables
- Complete source code with comments
- Database schema / data model and screen flow
- Project report with screenshots and results
- Demonstration-ready build
Scanning is implemented with CameraX combined with the ML Kit Barcode Scanning API for fast, on-device detection of multiple barcode formats (QR, EAN, Code128), while generation uses the ZXing library to render codes at a chosen size and error-correction level.
A scan-history screen (backed by Room) stores previously scanned codes with timestamps, and generated codes can be saved to the device gallery or shared directly via other apps, covering both the consumption and creation sides of QR code usage.
Detailed Project Description
QR Code Scanner & Generator App gives the user a focused everyday tool with a clean interface, local storage of their data and optional sync or reminders.
How It Works
1. The user enters or records data (amounts, steps, notes, recordings, values).
2. The app validates and stores it locally (SQLite/Room/SharedPreferences) or in the cloud.
3. Lists, totals, charts or conversions are computed and displayed instantly.
4. Reminders/notifications run in the background where the feature applies.
Technology Roles
- Android
- Java
- CameraX
- ML Kit
- ZXing
Implementation Steps
1. Sketch the screens and the data each screen needs.
2. Create the project in Android Studio, CameraX, ML Kit Barcode Scanning and set up navigation between screens.
3. Define the local data model (SQLite/Room/SharedPreferences) or cloud sync.
4. Implement the core feature (tracking, conversion, recording, reminders, playback).
5. Add background work / notifications / permissions where required.
6. Test on real devices, handle edge cases and optimise battery and performance.
7. Generate the APK and prepare screenshots and documentation.
Key Features
- Simple, fast UI
- Offline storage
- Summaries and charts
- Notifications / sync where applicable
Expected Output
On completion the student will have an installable app that keeps the user's data organised and accessible.
Deliverables
- Complete source code with comments
- Database schema / data model and screen flow
- Project report with screenshots and results
- Demonstration-ready build
Technologies used
Software & tools
- Android Studio
- CameraX
- ML Kit Barcode Scanning
- ZXing
What you get
- Working project / hardware kit, tested before delivery
- Complete source code with explanation
- Project demo and guidance for your viva
- Project report, PPT and IEEE paper support (on request)
Delivery & Payment
Delivery takes a minimum of two weeks from the date your inquiry is confirmed.
Payment is in two parts:
• 50% advance to start the project
• Remaining 50% before delivery
Note:
• Documentation and PPT are not included by default
• If you need documentation/PPT, it can be arranged for extra time and cost
We'll confirm the exact timeline and cost with you after reviewing your requirements.
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