2 Answers

• Couldn't you also just use the built-in geocoding routines? From the kitchen sink:

  var addr = "2065 Hamilton Avenue San Jose California 95125";
  
  Titanium.Geolocation.forwardGeocoder(addr,function(evt) {
    Ti.API.info('in forward ')
    forwardGeo.text = "lat:"+evt.latitude+", long:"+evt.longitude;
    Titanium.Geolocation.reverseGeocoder(evt.latitude,evt.longitude,function(evt) {
      var text = "";
      for (var i = 0; i < evt.places.length; i++) {
        text += "" + i + ") " + evt.places[i].address + "\n"; 
      }
      Ti.API.info('Reversed forward: '+text);
    });
  });
  

• Aha! Found what I need! Hope this helps the next seeker who comes this way:

  Google has a service called "The Google Geocoding API". It's pretty easy to use. Instructions and examples here:

  Geocoding API

  Here's a bit of code from my preliminary tests. It's searching for streets named "Guilford Ave" and telling it to return the results as xml (See output Here). The results are crunched by the Ti XML parser and, in this case, it spits out the 'formatted_address' elements – a means to show the user the list of near-matches. Still a lot of work to go to get what I want but this is a promising start!

  var xhr = Titanium.Network.createHTTPClient();
  xhr.onload = function() {
      var result = this.responseText;
      var xml = Ti.XML.parseString(result);
  
      var params = xml.documentElement.getElementsByTagName("formatted_address");
      for (var i=0; i<params.item.length; i++) {
          Ti.API.log('Param '+i+': Name: '+params.item(i).text);
      }
  
  };
  
  xhr.onerror = function() {
      Titanium.API.info('error');
  };
  
  xhr.open("GET","http://maps.googleapis.com/maps/api/geocode/xml?address=Guilford+Ave&sensor=true");
  xhr.send();
  

  Mark