adobe flash buider (flex4): Error #2025 or Error: addChild() is not available in this class. Instead
- by user306584
Hi, I'm a complete newbie to Flex, so apologies for my dumbness. I've searched for an answer but haven't found anything that seems to be doing the trick.
What I'm trying to do: port this example http://www.adobe.com/devnet/air/flex/articles/flex_air_codebase_print.html
to Flash Builder 4.
All seems to be fine but for one thing. When I use the original code for the Air application
<?xml version="1.0" encoding="utf-8"?>
<s:WindowedApplication xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
creationComplete="onApplicationComplete()">
<fx:Script>
<![CDATA[
private static const neededForCompilation:AirGeneralImplementation = null;
private function onApplicationComplete():void
{
var can:MainCanvas = new MainCanvas();
this.addChild(can);
can.labelMessage = "Loaded in an AIR Application ";
}
]]>
</fx:Script>
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
</s:WindowedApplication>
I get this run time error
Error: addChild() is not available in
this class. Instead, use addElement()
or modify the skin, if you have one.
at
spark.components.supportClasses::SkinnableComponent/addChild()[E:\dev\4.0.0\frameworks\projects\spark\src\spark\components\supportClasses\SkinnableComponent.as:1038]
If I substitute the code with
this.addElement(can);
Everything loads well but the first time I try to press any of the buttons on the main canvas I get the following run time error
ArgumentError: Error #2025: The supplied DisplayObject must be a child of the caller.
at flash.display::DisplayObjectContainer/getChildIndex()
at mx.managers::SystemManager/getChildIndex()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:1665]
at mx.managers.systemClasses::ActiveWindowManager/mouseDownHandler()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\systemClasses\ActiveWindowManager.as:437]
here's the super simple code for the main canvas
<?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:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"
creationComplete="init();">
<fx:Declarations>
<!-- Place non-visual elements (e.g., services, value objects) here -->
</fx:Declarations>
<fx:Script source="main.as" />
<mx:Label id="lblMessage" text="The UI from the shared Flex app BothCode" x="433" y="112"/>
<s:Button x="433" y="141" click="saveFile();" label="Save File"/>
<s:Button x="601" y="141" click="GeneralFactory.getGeneralInstance().airOnlyFunctionality();" label="Air Only"/>
</s:Application>
Any help would be immensely appreciated. And any pointers to how to setup a project that can compile in both Air and Flash while sharing the same code, all for Flex 4, would also be immensely appreciated.
thank you!
