# wx.onLocationChange(function callback)

Start from base library version 2.8.1. Please remaining backward compatible.

with Promise style call: Not supported

Mini Program plugin: Not supported

Monitor real-time geo-location change events in conjunction with wx.startLocationUpdateBackground、wx.startLocationUpdateUse.

# parameter

# function callback

Callback function for real-time location-changing events

# parameter

# Object res

attribute	type	Introductions	Minimum version
latitude	number	Latitude, range -9090. The negative number indicates latitude south. use gcj02 NBS coordinate system
longitude	number	Longitude, range -180Negative numbers denote west longitude. use gcj02 NBS coordinate system
speed	number	Speed, unit m/s
accuracy	number	Accuracy of position
altitude	number	Height, unit m	1.2.0
verticalAccuracy	number	Vertical accuracy, in units m（Android Unable to get, return 0）	1.2.0
horizontalAccuracy	number	Horizontal precision, unit m	1.2.0

# sample code

 const _locationChangeFn = function(res) {
  console.log('location change', res)
 }
 wx.onLocationChange(_locationChangeFn)
 wx.offLocationChange(_locationChangeFn)