locationChanged

Type

message

Summary

Sent to the current card of the default stack when the location of the device changes.

Syntax

locationChanged <pLatitude>, <pLongitude>, <pAltitude>

Description

Handle the locationChanged message if you want to perform tasks when the location of the device changes.

The locationChanged message is sent to the current card of the default stack when the location of the device changes.

If location tracking cannot be started (typically due to the user 'not allowing' access to CoreLocation) then a trackingError message is sent instead.

Parameters

Name	Type	Description
pLatitude		the latitude of the device
pLongitude		the longitude of the device
pAltitude		the altitude of the device

Examples

on locationChanged pLatitude, pLongitude, pAltitude
   put pAltitude into field "altitude"
end locationChanged

on locationChanged
   put mobileSensorReading("location", true) into theLocation
    -- update the marker on the map showing the current location
   updateMapPosition theLocation
end locationChanged

Related

command: mobileSetLocationHistoryLimit, mobileStopTrackingSensor, mobileStartTrackingSensor

function: mobileGetLocationHistoryLimit, mobileSensorAvailable, mobileSensorReading, mobileLocationAuthorizationStatus

message: locationChanged, trackingError

Compatibility and Support

Introduced

LiveCode 4.5.2

OS

ios

android

Platforms

mobile