Loading and Unloading of swf files in SWF Loader

Question

Hi all,
I have a doubt reg. SWF Loader.
I have created two mxml files A & B.
A. local.mxml
B. SwfSample.mxml
i have two labels and a button in A file and i have set values to those labels and have a method to handle the click event of the button. In B file i have loaded this A file and accessed the labels and methods using SystemManager Component and changed the values of the A file's label and accessed data from A file to B file.
Here comes the problem,
I have two buttons named LoadAgain and Unload
When i click the Unload button, the SWF Loader unloads its content by the method i handled for  the Unload button, after that i have clicked on the LoadAgain button to load the same content of A's mxml to the SWF Loader, it loads succesfully,but i was not able to access its Label or Method from the B mxml. Please help me to solve the issue.
local.mxml
<?xml version="1.0" encoding="utf-8"?><mx:Application 
xmlns:mx=http://www.adobe.com/2006/mxml layout="absolute">
<mx:Script>
    <![CDATA[
Bindable]
    public var varOne:String = "This is a public variable";
    public function setVarOne(newText:String):void
          varOne = newText;
    ]]>
</mx:Script>
<mx:Label id="lblOne" text="I am here" x="28" y="88"/>
<mx:Label text="{varOne}" x="166" y="88"/>
<mx:Button label="Nested Button" click="setVarOne('Nested Button Pressed');" x="28" y="114"/>
SwfSample.mxml
<?xml version="1.0" encoding="utf-8"?>
<mx:Application 
xmlns:mx=http://www.adobe.com/2006/mxml layout="absolute">
    <mx:Script>
    <![CDATA[
          import mx.controls.Alert;  
          import mx.managers.SystemManager;  
          import mx.controls.Label; 
Bindable]
          public var loadedSM:SystemManager;
          private function initNestedAppProps():void
              loadedSM = SystemManager(myLoader.content);
          public function updateLabel():void
              lbl.text = loadedSM.application[
"lblOne"].text;
          public function updateNestedLabels():void
              loadedSM.application[
"lblOne"].text = "I was just updated" ;
              loadedSM.application[
"varOne"] = "I was just updated";
          public function updateNestedVarOne():void
               local(loadedSM.application).setVarOne(
"Updated varOne");
          public function unload():void
               myLoader.content.loaderInfo.loader.unload();
          public function loadAgain():void
               myLoader.load(
"../bin-debug/local.swf");
        ]]>
     </mx:Script>
<mx:Label id="lbl" x="72" y="47"/>
<mx:SWFLoader id="myLoader" width="438" source="../bin-debug/local.swf" creationComplete="initNestedAppProps();" y="73" height="238" x="72" alpha="1.0"/>
<mx:Button label="Update Label Control in Outer Application" click="updateLabel();" x="72" y="319"/>
<mx:Button label="Update Nested Controls" click="updateNestedLabels();" x="72" y="349"/>
<mx:Button label="Update Nested varOne" click="updateNestedVarOne();" x="72" y="379"/>
<mx:Button label="Unload" click="unload();" x="72" y="409"/>
<mx:Button label="Load Again" click="loadAgain();" x="72" y="439"/>
</mx:Application>
Thanks & regards,
Sathish.K

Answer 1

creationComplete only fires once when the SWFLoader is created.  Therefore you never reset your variables to point to the new sub-app.  On a slow network, creationComplete may fire before the sub-app loads.  It is best to use the COMPLETE event.
Alex Harui
Flex SDK Developer
Adobe Systems Inc.
Blog: http://blogs.adobe.com/aharui