## uni.onLocationChange(callback) @onlocationchange ## uni.offLocationChange(callback) @offlocationchange ## uni.onLocationChangeError(callback) @onlocationchangeerror ## uni.offLocationChangeError(callback) @offlocationchangeerror ## uni.startLocationUpdate(options) @startlocationupdate ## uni.stopLocationUpdate(options) @stoplocationupdate ## uni.startLocationUpdateBackground(option) @startlocationupdatebackground