使用Google Maps API隐藏标记点击

时间:2014-11-13 21:11:27

标签: javascript google-maps

我正在使用Google Maps Javascript V3 API构建搜索表单。我想添加一些过滤器,点击时会隐藏地图上某些类型的标记。要隐藏的标记用

表示
locations[i][11] == 'Other'

HTML:

<a href="#" class="hideOtherMarkers">Hide Other Markers</a>

的JavaScript:

var geocoder;
function initialize() {
  geocoder = new google.maps.Geocoder();
  var mapOptions = {
    center: { lat: 48.509532, lng: -122.643852}
  };

  var map = new google.maps.Map(document.getElementById('map-canvas'),mapOptions);
  var locations = <?php echo json_encode($locations_array); ?>;
  var infowindow = new google.maps.InfoWindow();

  var marker, i;

  for (i = 0; i < locations.length; i++) {  
    marker = new google.maps.Marker({
      position: new google.maps.LatLng(locations[i][1], locations[i][2]),
      animation: google.maps.Animation.DROP,
      map: map
    });

    google.maps.event.addListener(marker, 'click', (function(marker, i) {
      return function() {

        var content = '';
        infowindow.setContent(content);
        infowindow.open(map, marker);
      }
    })(marker, i));

    google.maps.event.addDomListener(document.getElementsByClassName('hideOtherMarkers')[0], 'click', function() {
        if (locations[i][11] == 'Other') {
            marker.setVisible(false); // maps API hide call
        }
    });

  } 

}

google.maps.event.addDomListener(window, 'load', initialize);

当我点击链接时,没有任何内容触发,通过警报验证。我也试过google.maps.event.addListener(没有Dom)但没有成功。

1 个答案:

答案 0 :(得分:1)

正如geocodezip评论的那样,这种方法不起作用,因为i总是会指向locations的结尾。此外,这将最多隐藏1个标记(已创建的最后一个标记)。

可能的方法:

将标记的可见状态存储在MVCObject中:

地图选项:

var mapOptions = {
    center: { lat: 48.509532, lng: -122.643852}
    //that's the property where we store the state
    visibility:new google.maps.MVCObject
  };
在创建marker之后

在循环内部:

//when the state is not set yet, set it
if(typeof map.get('visibility').get(locations[i][11])==='undefined'){
  map.get('visibility').set(locations[i][11],true);
}
//bind the visible-property of the marker to the state
marker.bindTo('visible',map.get('visibility'),locations[i][11]);

添加侦听器(在循环之外):

 google.maps.event.addDomListener(
   document.getElementsByClassName('hideOtherMarkers')[0], 
   'click', 
    function() {
       //simply set the desired property of the MVCObject to false
       map.get('visibility').set('Other',false);
    });

演示:http://jsfiddle.net/doktormolle/5L2392mL/