# wx.onBeaconServiceChange(function callback)

Start from base library version 1.2.0. Please remaining backward compatible.

with Promise style call: Not supported

Mini Program plugin: Support, need to Mini Program base library version no less than 1.9.6

to monitor Beacon Service state change events, only one listener can be registered

# parameter

# function callback

Beacon Callback functions for service state change events

# parameter

# Object res