Reverse geocoding in intel XDK - geolocation

Question

Hi I am using the following code to display the user current position on the map:
function drawMap() {
var latlng = new google.maps.LatLng(currentLatitude, currentLongitude);
myLatLng = latlng;
var mapOptions = {
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP,
zoomControl: true,
zoomControlOptions: {
style: google.maps.ZoomControlStyle.SMALL,
position: google.maps.ControlPosition.LEFT_TOP
},
};
if (boolTripTrack === true) {
_map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);
}
}
var suc = function(p) {
console.log("geolocation success", 4);
//Draws the map initially
if (_map === null) {
currentLatitude = p.coords.latitude;
currentLongitude = p.coords.longitude;
drawMap();
//reverseGeocode(currentLatitude, currentLongitude);
} else {
myLatLng = new google.maps.LatLng(p.coords.latitude, p.coords.longitude);
}
//Creates a new google maps marker object for using with the pins
if ((myLatLng.toString().localeCompare(oldLatLng.toString())) !== 0) {
//Create a new map marker
var Marker = new google.maps.Marker({
position: myLatLng,
map: _map
});
if (_llbounds === null) {
//Create the rectangle in geographical coordinates
_llbounds = new google.maps.LatLngBounds(new google.maps.LatLng(p.coords.latitude, p.coords.longitude)); //original
} else {
//Extends geographical coordinates rectangle to cover current position
_llbounds.extend(myLatLng);
}
//Sets the viewport to contain the given bounds & triggers the "zoom_changed" event
_map.fitBounds(_llbounds);
}
oldLatLng = myLatLng;
};
var fail = function() {
console.log("Geolocation failed. \nPlease enable GPS in Settings.", 1);
};
var getLocation = function() {
console.log("in getLocation", 4);
};
This works fine but I need to perform reverse geocoding when a button is pressed so that the address is displayed. The function is am using is:
function reversegeocode(){
var latlng = new google.maps.LatLng(?, ?);
var geocoder = new google.maps.Geocoder();
geocoder.geocode({'latLng': latlng}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (results[1]) {
alert(results[1].formatted_address);
} else {
alert('No results found');
}
} else {
alert('Geocoder failed due to: ' + status);
}
});
}
I am unsure of how to pass in the current latitude and longitude from the previous function. Can anyone help me with this??
Thank you..

Answer 1

Define the reverse geocode function like this, with parameters for lat and lng:
function reversegeocode(lat, lng){
var latlng = new google.maps.LatLng(lat, lng);
var geocoder = new google.maps.Geocoder();
geocoder.geocode({'latLng': latlng}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (results[1]) {
alert(results[1].formatted_address);
} else {
alert('No results found');
}
} else {
alert('Geocoder failed due to: ' + status);
}
});
}
And then call the function by passing the variables : reverseGeocode(currentLatitude, currentLongitude);