Description: Looking for an Android developer to build a simple barcode scanning app with a login screen and automatic quantity merging feature. App Requirements: Login Screen: Two text inputs (e.g., Operator Name and Location). Local validation only — no backend. For example ( add on as ram and 2nd user as Rakesh ) Scanner Screen: Use the camera to scan barcodes SYMBOLIGIES or QR codes (ZXing or Google ML Kit). When the same barcode is scanned again, its quantity should automatically increase instead of creating a new entry. Display scanned results and total quantity on screen. Option to export all data to a .txt file in this format: input1, input2, barcode, qty (e.g., RAM, RAKESH, 8901234567890, 3) Tech: Java or Kotlin in Android Studio, offline/local app only. Deliverables: Source code, APK, and short setup guide. Ownership: Full copyright and source code rights transfer to me upon payment. Budget: ₹5000 (fixed) Deadline: 5 days