Maybe IDSWeather::init() is being called before IDSWeather has been added as a child to a container.
Alex Harui Flex SDK Developer Adobe Systems Inc.<http://www.adobe.com/> Blog: http://blogs.adobe.com/aharui From: [email protected] [mailto:[email protected]] On Behalf Of gordofeatherfoot Sent: Monday, July 13, 2009 8:52 AM To: [email protected] Subject: [flexcoders] Issue adding an Image component to a custom component Hello, I have a problem that is not so easy to expose so please bare with me. I have a Component class written is AS3 which extends the Canvas Class. I then have a weather component written in mxml that uses as a base the the Component class. ie my weather component.mxml looks something like this: <components:Component xmlns:components="net.zzzzzz.components.*" xmlns:mx="http://www.adobe.com/2006/mxml"; verticalScrollPolicy="off" horizontalScrollPolicy="off" preinitialize="onPreInitialize()"> ... ... <script .........> <mx:HBox id="hbxBackground" width="256" height="120" /> <mx:HBox id="hbxInnerFrame" x="15" y="15" width="226" height="50"/> <mx:HBox id="hbxBottom" x="15" y="65" width="226" height="40"/> <mx:HBox id="hbxMiddle" x="15" y="40" width="226" height="40"/> <mx:Label id="lblLocation" x="15" y="12" width="226"/> <mx:Image id="meteoImg" x="56" y="63" /> -----> this causes the error ! <mx:Label id="lblTemperature" x="132" y="40" width="100"/> <mx:Label id="lblDayTitle" x="15" y="78" width="226"/> </components:Component> This weather component is compiled into a swf seperatly from my main app. In my main app I load the weather component definition from the swf with a loader. I instantiate this weather component (by extracting it's definition through the loader) and add it to the stage. When adding it to the stage i get the following error: TypeError: Error #1009: Cannot access a property or method of a null object reference. at mx.controls::SWFLoader/addedToStageHandler()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\controls\SWFLoader.as:1990] at flash.display::DisplayObjectContainer/addChildAt() at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::$addChildAt()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\core\UIComponent.as:5083] at mx.core::Container/addChildAt()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\core\Container.as:2215] at mx.core::Container/addChild()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\core\Container.as:2140] at mx.core::Container/createComponentFromDescriptor()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\core\Container.as:3681] at mx.core::Container/createComponentsFromDescriptors()[C:\autobuild\3.3.0\frameworks\projects\framework\src\mx\core\Container.as:3493] at IDSWeather/init()[/Users/bounce/Documents/IdScreen/Components/src/IDSWeather.mxml:375] This error happens when flex is trying to add the Image component that i defined in the mxml of the weather component. Specifically this error happens in SWFLoader in the following function: private function addedToStageHandler(event:Event):void { systemManager.getSandboxRoot().addEventListener(InterManagerRequest.DRAG_MANAGER_REQUEST, mouseShieldHandler, false, 0, true); } Here 'systemManager' is null and i don't understand why. Any help would be very much appreaciated. Many thanks, Bounce.
