# wx.onHCEMessage(function callback)
Start from base library version 1.7.0. Please remaining backward compatible.
with Promise style call: Not supported
Mini Program plugin: Not supported
Listening reception NFC Device message event, can register only one listener
# parameter
# function callback
receive NFC Callback functions for device message events
# parameter
# Object res
| attribute | type | Introductions |
|---|---|---|
| messageType | number | Message Type |
| data | ArrayBuffer | messageType=1 time The client receives NFC Instructions for equipment |
| reason | number | messageType=2 Cause, reason |
messageType Legal value
| value | Introductions | Minimum version |
|---|---|---|
| 1 | HCE APDU Command type, the Mini Program needs to handle this instruction, and call SendHCEMessage Interface return processing instruction | |
| 2 | Device Departure Event Type |