ArcGIS API for Flex (二)新增地图和图层

先看效果，这是我运行起来的

看代码：

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
			   xmlns:s="library://ns.adobe.com/flex/spark"
			   xmlns:esri="http://www.esri.com/2008/ags"
			   pageTitle="World Topographic Map">
	<fx:Declarations>
		<esri:Extent id="initialExtent"
					 xmin="-13635000" ymin="4541000" xmax="-13625000" ymax="4547000">
			<esri:SpatialReference wkid="102100"/>
		</esri:Extent>
	</fx:Declarations>
	
	<s:controlBarContent>
		<s:RichText width="100%">
			This sample demonstrates how to add an ArcGISTiledMapServiceLayer
			to your Map using the ArcGIS API for Flex.  The tiled layer is
			typically used as a basemap layer in the map and its source is
			a map service that has been cached or has map tiles.
			This map is the World Topographic map service from ArcGIS Online.
		</s:RichText>
	</s:controlBarContent>
	
	<esri:Map extent="{initialExtent}">
		<esri:ArcGISTiledMapServiceLayer url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Topo_Map/MapServer"/>
	</esri:Map>
</s:Application>

说明：