Core Implementation Principles and Development Steps of HarmonyOS "Tap-to-Share" Feature

​**​* I. Technical Principles HarmonyOS "Tap-to-Share" leverages ​NFC + Distributed Soft Bus​ dual engines, with core architecture: Physical Layer (NFC Chip) ↔ Protocol Layer (HMS Core) ↔ Distributed Layer (Soft Bus) ​NFC Trigger: Integrated NFC se...