Question

我有一个Google地图实施，它使用Google Maps Utility Library v3（http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/docs/reference.html）进行群集标记。它运作得很好。

现在，我想在标记中添加infowindows。群集标记可以正常工作，所以我想保持行为（即单击它们时放大）但是当点击普通单个标记时我想显示一个infowindow。

完整的代码如下：

var _iconCenter = new google.maps.MarkerImage('/css/img/map-marker.png',
  new google.maps.Size(38, 48),
  new google.maps.Point(0,0),
  new google.maps.Point(19, 44));

var shadow = new google.maps.MarkerImage('/css/img/map-marker-shadow.png',
  new google.maps.Size(57, 49),
  new google.maps.Point(0,0),
  new google.maps.Point(7, 44));

var _icon = '/css/img/map-marker-purple.png';
var infowindow;
var markersArray = [];
var map;
var currentPosition = 0;
var currentmarker;
var firstload = true;
var maploaded = false;
var interval = 5000;
var geocoder;

var stylez = [];


function initialize(items,loop,zoom) {
  geocoder = new google.maps.Geocoder();
  if (items.length > 0) {
    var latlng = new google.maps.LatLng(items[0].Lat, items[0].Lng);
    var myOptions = {
      zoom: zoom,
      center: latlng,
      //mapTypeControl: false,
      streetViewControl: false,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };

    map = new google.maps.Map(document.getElementById("map"), myOptions);
    map.setOptions({styles: stylez});

    for (var i = 0; i < items.length; i++) {
      var marker = new google.maps.Marker({
        position: new google.maps.LatLng(items[i].Lat, items[i].Lng),
        title: items[i].Title,
        icon: _icon,
        shadow: shadow,
        infocontent: items[i].Description
      });
      marker.setMap(map);
      markersArray.push(marker);
    }


    //set style options for marker clusters (these are the default styles)
    mcOptions = {
      gridSize: 44
    }

    var markerCluster = new MarkerClusterer(map, markersArray, mcOptions);
    google.maps.event.addListener(map, "tilesloaded", function () {
      if(loop == true){
        SetLoop();
      }
    });

    google.maps.event.addListener(marker, "click", function () {
      alert('test');
      //infowindow.setContent('test');
      //infowindow.open(map,this);
    });

  }
}


function SetLoop() {
//This will fire everytime map loads or recenteres
  maploaded = true;
  if (firstload) {
    firstload = false;
    Recenter();
  }
}

function Recenter() {
  //If previous iteration is not loaded completely, wait to avoid errors
  //It could happen for slow internet connection
  if (maploaded) {
    maploaded = false;
  } else {
    //keep adding 1 second to interval for slow connection till page loads
    interval = interval + 1;
    setTimeout("Recenter()", interval);
    return;
  }

  if (infowindow != null && currentmarker != null) {
    //currentmarker.icon = _icon;
    currentmarker.icon = _iconCenter;
    currentmarker.setMap(map);
    infowindow.close(map, currentmarker);
  }

  markersArray[currentPosition].icon = _iconCenter;
  markersArray[currentPosition].setMap(map);
  map.setCenter(new google.maps.LatLng(markersArray[currentPosition].getPosition().lat(), markersArray[currentPosition].getPosition().lng()));

  infowindow = new google.maps.InfoWindow({
    content: markersArray[currentPosition].infocontent,
    size: new google.maps.Size(50, 50)
  });
  infowindow.open(map, markersArray[currentPosition]);
  currentmarker = markersArray[currentPosition];
  if (currentPosition >= markersArray.length - 1) {
    currentPosition = 0;
  } else {
    currentPosition++;
  }
  if (markersArray.length > 1) {
    setTimeout("Recenter()", interval);
  }
}

正如您所看到的，仅出于演示目的，我在标记点击侦听器上调用粗略警报事件，但它根本不会触发。当我点击普通标记并且浏览器的开发人员工具控制台中没有错误时，没有任何反应。我想知道这是否与另一个事件听地图加载有关，但我处于对此理解的边缘，没有任何错误我很难知道如何调试它。

有人能指出我正确的方向让这个工作吗？

谢谢大家！

Answer 1

我认为问题是你在添加事件监听器之前将标记交给了集群器。尝试在创建标记后立即添加侦听器，以便在将markersArray传递给clusterer时，事件列表获取器已经附加。所以试试：

for (var i = 0; i < items.length; i++) {
      var marker = new google.maps.Marker({
        position: new google.maps.LatLng(items[i].Lat, items[i].Lng),
        title: items[i].Title,
        icon: _icon,
        shadow: shadow,
        infocontent: items[i].Description
      });
      marker.setMap(map);

      //attach the listener now, before pushing into the array
      attachListener(marker,'marker:'+i);
      markersArray.push(marker);
    }

然后：

    function attachListener(marker,content){
        google.maps.event.addListener(marker, "click", function () {
//      alert('test');
        infowindow.setContent(content);
        infowindow.open(map,this);
        });

    }

Answer 2

Working example聚类（来自xml文件），标记上有infowindows。

获取infowindow以显示在聚类标记集中单击正常标记时

2 个答案: