Fast NFC Payment Android App Upgrade

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? Project Title: ? Upgrade & Customize NFC Gate Source Code for Android 15 — Contactless POS Payment App (24-Hour Deadline) ? Project Description: We are building a future-ready contactless payment system using NFC technology. I have the base NFC Gate source code, but it currently has multiple issues, including outdated SDK compatibility and runtime errors. I need an experienced Android + NFC developer who can: ✅ Project Requirements: Fix All Existing Issues: Resolve SDK, deprecated APIs, and runtime crashes Ensure compatibility with Android 15 (API 34) Clean, stable, and modular code Modernize the App: Update all dependencies, Gradle files, and libraries Refactor outdated components to modern Android architecture (Kotlin preferred) NFC Functionality Enhancement: Enabl...

Keyword: Java

Delivery Time: 3 days left days

Price: $123.0

Java Kotlin Mobile App Development Near Field Communication (NFC) UI / User Interface