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