Javascript 谷歌地图API——点击每个标记的唯一活动图标

我有以下使用Google Maps API的JS：

// initialize variables
var infowindow = null;
var directionDisplay;
var directionsService = new google.maps.DirectionsService();
var gmarkers = [];

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

function initialize() {

    // directions
    directionsDisplay = new google.maps.DirectionsRenderer();

    var centerMap = new google.maps.LatLng(busipress_map_vars.center_lat , busipress_map_vars.center_long);

    var myOptions = {
        zoom: 4,
        center: centerMap,
        mapTypeId: google.maps.MapTypeId.TERRAIN
    }

    var map = new google.maps.Map(document.getElementById("map-canvas"), myOptions);

    setMarkers(map, sites);
    infowindow = new google.maps.InfoWindow({
            content: "loading..."
        });

    var start = busipress_map_vars.path_start;
    var end = busipress_map_vars.path_end;
    var request = {
        origin:start,
        destination:end,
        travelMode: google.maps.DirectionsTravelMode.DRIVING
    };
    directionsService.route(request, function(response, status) {
        if (status == google.maps.DirectionsStatus.OK) {
            directionsDisplay.setDirections(response);
        }
    });

    directionsDisplay.setMap(map);
}

/**
 * show locations
 */
var sites = busipress_map_vars.locations;

/**
 * set markers on map
 */
function setMarkers(map, markers) {

    // default icon
    var defaultIcon = new google.maps.MarkerImage(busipress_map_vars.default_map_icon,
        // This marker is 32 pixels wide by 32 pixels tall.
        new google.maps.Size(busipress_map_vars.default_map_icon_width, busipress_map_vars.default_map_icon_height),
        // The origin for this image is 0,0.
        new google.maps.Point(0,0),
        // The anchor for this image is the base of the flagpole at 0,32.
        new google.maps.Point((busipress_map_vars.default_map_icon_width / 2), busipress_map_vars.default_map_icon_height));

    // default shadow
    var shadow = new google.maps.MarkerImage(busipress_map_vars.map_icon_shadow,
        // The shadow image is larger in the horizontal dimension
        // while the position and offset are the same as for the main image.
        new google.maps.Size(busipress_map_vars.map_icon_shadow_width, busipress_map_vars.map_icon_shadow_height),
        new google.maps.Point(0,0),
        new google.maps.Point((busipress_map_vars.default_map_icon_width / 2), busipress_map_vars.map_icon_shadow_height));

    // active icion
    var activeIcon = new google.maps.MarkerImage(busipress_map_vars.active_map_icon,
        // This marker is 20 pixels wide by 32 pixels tall.
        new google.maps.Size(busipress_map_vars.active_map_icon_width, busipress_map_vars.active_map_icon_height),
        // The origin for this image is 0,0.
        new google.maps.Point(0,0),
        // The anchor for this image is the base of the flagpole at 0,32.
        new google.maps.Point((busipress_map_vars.active_map_icon_width / 2), busipress_map_vars.active_map_icon_height));
    var shape = {
        coord: [9,0,6,1,4,2,2,4,0,8,0,12,1,14,2,16,5,19,7,23,8,26,9,30,9,34,11,34,11,30,12,26,13,24,14,21,16,18,18,16,20,12,20,8,18,4,16,2,15,1,13,0],
        type: 'poly'
    };

    for (var i = 0; i < markers.length; i++) {
        var sites = markers[i];
        var siteLatLng = new google.maps.LatLng(sites[1], sites[2]);
        var marker = new google.maps.Marker({
            position: siteLatLng,
            map: map,
            title: sites[0],
            icon: sites[4][0],
            shadow: sites[6][0],
            zIndex: 1,
            html: sites[3]
        });

        google.maps.event.addListener(marker, "click", function () {
            for (var i = 0; i < gmarkers.length; i++) {
               //gmarkers[i].setIcon(defaultIcon);
               gmarkers[i].setIcon(sites[4][0]);
            }
            //this.setIcon(activeIcon);
            this.setIcon(sites[5][0]);

            infowindow.setContent(this.html);
            infowindow.open(map, this);
        });
        gmarkers.push(marker);
    }
}

---

但它仍然会将

defaultIcon

更改为一对一，而不是单独的defaultIcon图像。这可能与另一个for循环中的for循环有关，但我不太确定。

您需要更改click listener函数：

    google.maps.event.addListener(marker, "click", function () {
        for (var i = 0; i < gmarkers.length; i++) {
           gmarkers[i].setIcon(defaultIcon);
        }
        this.setIcon(activeIcon);

        infowindow.setContent(this.html);
        infowindow.open(map, this);
    });

（再次根据您的修改）

更新：我在您提供的链接上发现一个javascript错误：

Error: marker[i] is undefined
Source File: http://zslabs.com/jhtwp/wp-content/plugins/busipress/js/map.1349993292.js
Line: 105

105是这一行：

this.setIcon（marker[i].myActiveIcon）

在这里：

google.maps.event.addListener（标记“单击”，函数（）{
对于（变量i=0；i

我想你想要这个.myActiveIcon

（“点”处于活动状态，默认情况下没有点）
您需要更改单击侦听器功能：

    google.maps.event.addListener(marker, "click", function () {
        for (var i = 0; i < gmarkers.length; i++) {
           gmarkers[i].setIcon(defaultIcon);
        }
        this.setIcon(activeIcon);

        infowindow.setContent(this.html);
        infowindow.open(map, this);
    });

（再次根据您的修改）

更新：我在您提供的链接上发现一个javascript错误：

Error: marker[i] is undefined
Source File: http://zslabs.com/jhtwp/wp-content/plugins/busipress/js/map.1349993292.js
Line: 105

105是这一行：
this.setIcon（marker[i].myActiveIcon）

在这里：

google.maps.event.addListener（标记“单击”，函数（）{
对于（变量i=0；i

我想你想要这个.myActiveIcon

（“点”处于活动状态，默认情况下没有点）

    google.maps.event.addListener(marker, "click", function () {
        for (var i = 0; i < gmarkers.length; i++) {
           gmarkers[i].setIcon(gmarkers[i].myDefaultIcon);
        }
        this.setIcon(marker[i].myActiveIcon);

        infowindow.setContent(this.html);
        infowindow.open(map, this);
    });