The Dominant Programmer

Nov 8, 2021 · Mobile Development

Read NFC Tag ID on Android to Use as Unique User Identifier

The article explains how to read an NFC card’s UID on Android, use it as a unique user identifier for login verification, and walks through required permissions, setting the activity launch mode to singleTop, designing the UI layout, handling NFC intents, converting the UID to a hex string, and debugging the implementation.