Question

我想将位置地址添加到标记内容中。我通过坐标获取地址，这是有效的，但在地图上将始终只显示最后一个地址。

这是我的示例代码：

<!DOCTYPE html>
<html>
<head>
    <title>Simple Map</title>
    <meta name="viewport" content="initial-scale=1.0">
    <meta charset="utf-8">
    <style>
        html, body {
            height: 100%;
            margin: 0;
            padding: 0;
        }

        #map {
            height: 400px;
        }

        #map_canvas {
            width: 100%;
            height: 100%;
        }
    </style>
</head>
<body>
<div id="map">
    <div id="map_canvas" class="mapping"></div>
</div>
<script>

    function initMap() {
        var locations = [
            [-33.890542, 151.274856],
            [-33.923036, 151.259052],
        ];

        var styleArray = [
            {
                featureType: 'all',
                stylers: [
                    {saturation: -80}
                ]
            }, {
                featureType: 'road.arterial',
                elementType: 'geometry',
                stylers: [
                    {hue: '#00ffee'},
                    {saturation: 50}
                ]
            }, {
                featureType: 'poi.business',
                elementType: 'labels',
                stylers: [
                    {visibility: 'on'}
                ]
            }
        ];

        var image = {
            url: 'map_icon.png',
            size: new google.maps.Size(30, 45),
            origin: new google.maps.Point(0, 0),
            scaledSize: new google.maps.Size(25, 35),
        };

        var map = new google.maps.Map(document.getElementById('map'), {
            scrollwheel: false,
            zoom: 8,
            center: new google.maps.LatLng(-33.92, 151.25), // default map position
            mapTypeId: google.maps.MapTypeId.ROADMAP,
            styles: styleArray,
        });

        var infowindow = new google.maps.InfoWindow();
        var geocoder = new google.maps.Geocoder();
        var marker, i;
        var mapContent = '';

        for (i = 0; i < locations.length; i++) {

            var latLng = new google.maps.LatLng(locations[i][0], locations[i][1]);

            geocoder.geocode({
                        latLng: new google.maps.LatLng(locations[i][0], locations[i][1]),
                    },
                    function (responses) {
                        if (responses && responses.length > 0) {
                            mapContent = responses[0].formatted_address;
                        }
                    }
            );

            marker = new google.maps.Marker({
                position: new google.maps.LatLng(locations[i][0], locations[i][1]),
                map: map,
                icon: image,
            });

            google.maps.event.addListener(marker, 'click', (function (marker, i) {
                return function () {
                    infowindow.setContent(mapContent);

                    infowindow.open(map, marker);
                }
            })(marker, i));

        }
    }

</script>
<script src="https://maps.googleapis.com/maps/api/js?key=KEY&callback=initMap&sensor=true"></script>
</body>
</html>

Answer 1

阅读有关Using closures in event listeners的一些文档：

geocoder.geocode({
  latLng: new google.maps.LatLng(locations[i][0], locations[i][1]),
  },
  function (responses) {
      if (responses && responses.length > 0) {
          mapContent = responses[0].formatted_address;
          var  marker = new google.maps.Marker({
              position: responses[0].geometry.location,
              map: map,
              icon: image,
          });       
          addContent(map, marker, mapContent, infowindow);
       }
  }
);



function addContent(map, marker, mapContent, infowindow ){
      google.maps.event.addListener(marker, 'click', (function (marker) {
                return function () {
                    infowindow.setContent(mapContent);

                    infowindow.open(map, marker);
                }
            })(marker));
}

JS小提琴：http://jsfiddle.net/4mtyu/2029/

将地址内容添加到多个Google地图标记

1 个答案: