南沙政府应急系统之GIS一张图（arcgis api for flex）讲解（五）地图切换以及图...

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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

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