That seems to work much better, thank you.
On Feb 20, 5:29 am, pclinx <[email protected]> wrote:
> Try setting creationPolicy="all" on the tabNavigator
>
> i.e <mx:TabNavigator id="tn" x="10" y="10" width="734" height="471"
> creationPolicy="all">
>
> On Feb 19, 9:19 pm, Israel <[email protected]> wrote:
>
> > We are having an issue with our map component where it fails to
> > properly initialize, it seems, when placed in any tab other than the
> > first tab within a tabNavigator.
>
> > It seems like it's having an issue with not being created on
> > application load since it only begins initializing once the tab is
> > clicked.
>
> > Has anyone else come across this and if so what is the exact reason
> > for it?
>
> > It seems it kind of works if the selectedIndex of the tabNavigator is
> > set to the tab which contains the map but even then it sporadically
> > throws the error.
>
> > Does anyone have a better fix/workaround?
>
> > I appreciate any help and/or feedback.
>
> > The error can be reproduced with the following simple example:
>
> > <?xml version="1.0" encoding="utf-8"?>
> > <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
> > layout="absolute" xmlns:maps="com.google.maps.*">
> > <mx:TabNavigator id="tn" x="10" y="10" width="734" height="471">
> > <mx:Canvas label="Tab 1" width="100%" height="100%">
> > <mx:DataGrid x="20" y="26">
> > <mx:columns>
> > <mx:DataGridColumn headerText="Column 1"
> > dataField="col1"/
>
> > <mx:DataGridColumn headerText="Column 2"
> > dataField="col2"/
>
> > <mx:DataGridColumn headerText="Column 3"
> > dataField="col3"/
>
> > </mx:columns>
> > </mx:DataGrid>
>
> > </mx:Canvas>
> > <mx:Canvas label="Tab 2" width="100%" height="100%">
> > <maps:Map key="">
>
> > </maps:Map>
> > </mx:Canvas>
> > </mx:TabNavigator>
> > </mx:Application>
>
> > The error received is the following:
>
> > TypeError: Error #1009: Cannot access a property or method of a null
> > object reference.
> > at com.google.maps::Map/drawBackground()
> > at com.google.maps::Map/onAdded()
> > at flash.display::DisplayObjectContainer/addChildAt()
> > at mx.core::UIComponent/http://www.adobe.com/2006/flex/mx/internal::
> > $addChildAt()[C:\autobuild\3.2.0\frameworks\projects\framework\src\mx
> > \core\UIComponent.as:5083]
> > at mx.core::Container/addChildAt()[C:\autobuild\3.2.0\frameworks
> > \projects\framework\src\mx\core\Container.as:2215]
> > at mx.core::Container/addChild()[C:\autobuild\3.2.0\frameworks
> > \projects\framework\src\mx\core\Container.as:2140]
> > at mx.core::Container/createComponentFromDescriptor()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\core\Container.as:3681]
> > at mx.core::Container/createComponentsFromDescriptors()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\core\Container.as:3493]
> > at mx.containers::ViewStack/instantiateSelectedChild()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\containers\ViewStack.as:
> > 1140]
> > at mx.containers::ViewStack/commitProperties()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\containers\ViewStack.as:
> > 664]
> > at mx.containers::TabNavigator/commitProperties()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\containers\TabNavigator.as:
> > 504]
> > at mx.core::UIComponent/validateProperties()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:5807]
> > at mx.managers::LayoutManager/validateProperties()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\managers\LayoutManager.as:
> > 539]
> > at mx.managers::LayoutManager/doPhasedInstantiation()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\managers\LayoutManager.as:
> > 689]
> > at Function/http://adobe.com/AS3/2006/builtin::apply()
> > at mx.core::UIComponent/callLaterDispatcher2()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:8628]
> > at mx.core::UIComponent/callLaterDispatcher()[C:\autobuild
> > \3.2.0\frameworks\projects\framework\src\mx\core\UIComponent.as:8568]
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