javascript - 从谷歌地图中获取第一个地址段

Question

理想情况下，使用 Google API 而不是 Javascript hack 来获取逗号之前的所有内容，我想知道是否可以获取框中地址的第一位。这是我正在使用的代码:

http://jsfiddle.net/Xw4ZM/3/

var geocoder;
var map;
var marker;

function initialize(){
//MAP
  var latlng = new google.maps.LatLng(41.659,-4.714);
  var options = {
    zoom: 16,
    center: latlng,
    mapTypeId: google.maps.MapTypeId.SATELLITE
  };

  map = new google.maps.Map(document.getElementById("map_canvas"), options);

  //GEOCODER
  geocoder = new google.maps.Geocoder();

  marker = new google.maps.Marker({
    map: map,
    draggable: true
  });

}

$(document).ready(function() { 

  initialize();

  $(function() {
    $("#address").autocomplete({
      //This bit uses the geocoder to fetch address values
      source: function(request, response) {
        geocoder.geocode( {'address': request.term }, function(results, status) {
          response($.map(results, function(item) {
            return {
              label:  item.formatted_address,
              value: item.formatted_address,
              latitude: item.geometry.location.lat(),
              longitude: item.geometry.location.lng()
            }
          }));
        })
      },
      //This bit is executed upon selection of an address
      select: function(event, ui) {
        $("#latitude").val(ui.item.latitude);
        $("#longitude").val(ui.item.longitude);
        var location = new google.maps.LatLng(ui.item.latitude, ui.item.longitude);
        marker.setPosition(location);
        map.setCenter(location);
      }
    });
  });

  //Add listener to marker for reverse geocoding
  google.maps.event.addListener(marker, 'drag', function() {
    geocoder.geocode({'latLng': marker.getPosition()}, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        if (results[0]) {
          $('#address').val(results[0].formatted_address);
          $('#latitude').val(marker.getPosition().lat());
          $('#longitude').val(marker.getPosition().lng());
        }
      }
    });
  });

});

这是我想要实现的场景，如果用户输入:

Swindon, Wiltshire, United Kingdom
The "name" value is this: "Swindon"

Wiltshire, United Kingdom:
The "name" value is this "Wiltshire"

United Kingdom:
The "name" value is this "United Kingdom"

它基本上保存了名称字段中提供的最准确的位置，无论是城镇、城市、县还是国家。

Answer 1

不确定它是否可以帮助您解决您的情况，但地址搜索结果对象中有地址组件。

https://developers.google.com/maps/documentation/geocoding/#JSON

geocoder.geocode({
        'address': request.term
    }, function (results, status) {
        for (i in results) {
            var result = results[i];

            for (j in result.address_components) {
                var segment = result.address_components[j];

                // do something with address segment
            }
        }
    })

或

geocoder.geocode({
    'address': request.term
}, function (results, status) {
    $.each(results, function (i, result) {
        $.each(result.address_components, function (i, segment) {
            // do something with address segment
        });
    });
})