单击相同的标记两次将打开两个InfoWindows

Question

I got infowindows working, but for some reason if I click the same marker multiple clicks it opens multiple of the same infowindow. I have a feeling it has to be something with my code, but I cant quite put my finger on what it is. Any help is appreciated.

var map;
var markers = [];

function initMap() {
    map = new google.maps.Map(document.getElementById('map_canvas'), {
        zoom: 14,
        center: new google.maps.LatLng(33.6894120, -117.9872660),
        mapTypeId: 'roadmap',
        disableDefaultUI: true
    });



    function addMarker(feature) {
        var marker = new google.maps.Marker({
            position: feature.position,
            icon: icons[feature.type].icon,
            map: map,
            type: feature.type,
            title: feature.title,
            description: feature.description
        });
        marker.addListener('click', function() {
            map.setCenter(marker.getPosition());

            var infoWindow = new google.maps.InfoWindow({
                map: map, 
                pixelOffset: new google.maps.Size(0, -60)
            });
            infoWindow.setContent(marker.description);
            infoWindow.setPosition(marker.position);

            google.maps.event.addListener(map, 'drag', function() {
                infoWindow.close();
            });
            google.maps.event.addListener(map, 'click', function() {
                infoWindow.close();
            });
        });
        markers.push(marker);
    }

    filterMarkers = function(getType) {
        //console.log(getType);
        for (var i = 0; i < markers.length; i++) {
            if (markers[i].type == getType || getType == "") {
                markers[i].setVisible(true);
            } else {
                markers[i].setVisible(false);
            }
        }
    }

    var features = [

        {
          position: new google.maps.LatLng(-33.91721, 151.22630),
          type: 'type1',
          description: 'Description1'
        },{
          position: new google.maps.LatLng(-33.91721, 151.22630),
          type: 'type2',
          description: 'Description2'
        },{
          position: new google.maps.LatLng(-33.91721, 151.22630),
          type: 'type3',
          description: 'Description3'
        }


    ];

    for (var i = 0, feature; feature = features[i]; i++) {
        addMarker(feature);
    }
}

$(document).ready(function(){
    initMap();
});

Answer 1

If you don't want an infowindow created every time you click on the marker, don't create a new one every time you click on the marker, create one for the marker (or one for the map, if you only ever want one open), and open it in the click listener.

function addMarker(feature) {
  var marker = new google.maps.Marker({
    position: feature.position,
    map: map,
    type: feature.type,
    description: feature.description
  });
  // create infowindow for the marker 
  var infoWindow = new google.maps.InfoWindow({});
  marker.addListener('click', function() {
    map.setCenter(marker.getPosition());
    // set the content of the infowindow
    infoWindow.setContent(marker.description);
    // open the infowindow on the marker.
    infoWindow.open(map,marker);
  });
  markers.push(marker);
}

proof of concept fiddle

Answer 2

You are creating a new InfoWindow with every marker click:

marker.addListener('click' ... var infoWindow = *new google.maps.InfoWindow( ...*

It is expected that you get multiple instances.

If you want one InfoWindow for all markers you can follow this example

If you want to have one per each marker check out this SO answer .