Undefined return value
- by yynneejj
what's wrong to my code..where my return value found undefind...
var so;
var imgid_callback1;
const DIV_ID = 'locationsample';
function setup(){
try {
so = device.getServiceObject("Service.Location", "ILocation");
}
catch (e) {
alert('<setup> ' +e);
}
}
function getLocation(imgId) {
var updateoptions = new Object();
// Setting PartialUpdates to 'FALSE' ensures that user get atleast
// BasicLocationInformation (Longitude, Lattitude, and Altitude.)
updateoptions.PartialUpdates = false;
var criteria = new Object();
criteria.LocationInformationClass = "BasicLocationInformation";
criteria.Updateoptions = updateoptions;
try {
var result = so.ILocation.GetLocation(criteria);
if(!checkError("ILocation::getLocation",result,DIV_ID,imgId)) {
document.getElementById(DIV_ID).innerHTML = showObject(result.ReturnValue);
}
}
catch (e) {
alert ("getLocation: " + e);
}
}
function getLocationAsync(imgId) {
var updateoptions = new Object();
updateoptions.PartialUpdates = false;
var criteria = new Object();
criteria.LocationInformationClass = "BasicLocationInformation";
criteria.Updateoptions = updateoptions;
imgid_callback1 = imgId;
try {
var result = so.ILocation.GetLocation(criteria, callback1);
if(!checkError("ILocation::getLocationAsync",result,DIV_ID,imgId)) {
showIMG(imgId,"");
}
}
catch (e) {
alert ("getLocationAsync: " + e);
}
}
function callback1(transId, eventCode, result){
var latitude = result.ReturnValue.Latitude; //<-----Error: Undefined Value
var longitude = result.ReturnValue.Longitude;
var req = null;
try {
req = new XMLHttpRequest();
if (typeof req.overrideMimeType != "undefined") {
req.overrideMimeType("text/xml");
}
req.onreadystatechange = function() {
if (req.readyState == 4) {
if (req.status == 200) {
}
} else {
alert("Error");
}
}
req.open("POST","http://localhost:8080/GPS/location",true);
req.setRequestHeader("longitude",+longitude);
req.setRequestHeader("latitude",+latitude);
req.send();
} catch (ex) {
alert(ex);
}
}
