天津政府应急系统之GIS一张图（arcgis api for flex）讲解（五）地图切换以及图层显示模块

config.xml文件的配置如下：

<widget right="20" top="55"
        config="widgets/MapSwitcher/MapSwitcherWidget.xml" url="widgets/MapSwitcher/MapSwitcherWidget.swf" />

源代码目录如下：

该模块的源代码原理解析，详细的代码在下载的开源flexviewer自带的：

大概的思路如下：MapSwitcherWidget.xml是模块的配置文件，MapSwitcherWidget.mxml是widget；

MapSwitcherWidget.xml：layerlist是图层列表里面的图层数据，excludelayer是选择排除的图层

<?xml version="1.0" ?>
<configuration>
    <layerlist visible="true">
        <!-- <excludelayer>The Label Of Some Layer In Main Config File</excludelayer> -->
    </layerlist>
</configuration>

config.xml文件：map节点里面配置

<operationallayers>
            <layer label="企业" type="feature" visible="false" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/7"
                popupconfig="popups/PopUp_Ecoomy.xml">
            </layer>
            <layer label="物资装备" type="feature" visible="false" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/2"
                popupconfig="popups/PopUp_Materials_equipment.xml">
            </layer>
            <layer label="庇护场所" type="feature" visible="true" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/4"
                popupconfig="popups/PopUp_Refuge.xml">
            </layer>
            <layer label="保护对象" type="feature" visible="true" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/5"
                popupconfig="popups/PopUp_Protection.xml">
            </layer>
             <layer label="应急仓库" type="feature" visible="false" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/6"
                popupconfig="popups/PopUp_Warehouse.xml">
            </layer> 
            <layer label="救援队伍" type="feature" visible="false" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/3"
                popupconfig="popups/PopUp_Rescue_teams.xml">
            </layer>
            <layer label="应急专家" type="feature" visible="false" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/1"
                popupconfig="popups/PopUp_Experts.xml">
            </layer>
            <layer label="危险隐患" type="feature" visible="true" alpha="1.0"
                url="http://localhost:6080/arcgis/rest/services/nsBusiness/FeatureServer/0"
                popupconfig="popups/PopUp_DangerSource.xml">
            </layer>
        </operationallayers>

这里配置图层列表的具体图层数据

        <basemaps>
            <layer label="南沙地图" type="tiled" visible="true" alpha="1" url="http://localhost:6080/arcgis/rest/services/ns_new/MapServer" /> 
        </basemaps>

这里可以配置不同的切换底图

备注：

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