How do I switch BaseLayers or why does a WMSLayer prevent my other layers to show?

stevemclaughlin

I've got a WMSLayer as the first layer in a map, and I'm adding a ArcGISTiledMapServiceLayer to the map, but whereever I put it, at index 0 or index 1, it won't show???

Do I need to switch the baselayer?

here's the code:

<?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 Imagery Map">
 <fx:Script>
  <![CDATA[
   import com.esri.ags.layers.ArcGISTiledMapServiceLayer;
   
   protected function button1_clickHandler(event:MouseEvent):void
   {
    var url:String = "http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer";
    var tiledMapLayer:ArcGISTiledMapServiceLayer = new ArcGISTiledMapServiceLayer( url);
    mymap.addLayer(tiledMapLayer  );     
   }
  ]]>
 </fx:Script>
 <esri:Map id="mymap" wrapAround180="true">
  <esri:WMSLayer  id="amIaBug"  visible="false" />
  <!--<esri:ArcGISTiledMapServiceLayer url="http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer"/>-->
 </esri:Map>
 <s:Button top="50" left="100" label="add Layer" click="button1_clickHandler(event)" />
</s:Application>

I have a map with a WMSLayer, when I click the button - it adds a tiledMapServiceLayer, but it doesn't show, try adding it before or after the WMSLayer and it still doesn't show.

Comment out the WMSLayer and the Tiledlayer shows fine.

How do I get it to show?
thanks,

stevemclaughlin

Hi, I just created a blank baselayer and will load it later when I know the url.
ex:
<exri:Map id='myMap'/>
<esri:ArcGisTiledMapServiceLayer id='baselayer' />
<exri:WMSLayer url='http://myweb.com/map.cgi' />

then later in my code:
baselayer.url = 'http://server.arcgisonline.com/blah/blah/mapserver';

This seems to be working fine for me, do you see any side effects that may come up?
thanks,
steve