I'm using several custom MXML components in my Flex 4.5 application.
They all use absolute coordinates to place Image, Label, Line, etc. components and are currently based on a spark.components.BorderContainer:
<?xml version="1.0" encoding="utf-8"?>
<s:BorderContainer
xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark"
xmlns:mx="library://ns.adobe.com/flex/mx"
width="160" height="140" borderWeight="0"
creationComplete="init(event)">
<s:layout>
<s:BasicLayout />
</s:layout>
<s:Image id="_avatar" x="0" y="0" width="160" height="120" />
<s:Label id="_username" x="1" y="122" width="80" />
<s:Label id="_bid" x="80" y="122" width="40" textAlign="center" />
<s:Label id="_trix" x="120" y="122" width="36" textAlign="right" />
.... and so on: Images, Labels, Paths, Lines, Rects ....
</s:BorderContainer>
Then I've realized, that I probably don't have to use BorderContainer, because I don't draw/need any borders around my custom components.
But I don't know, what to take instead of it.
I've tried taking <mx:UIComponent> (and removing <s:Layout> tag above), but then I get the error:
'Image' declaration must be contained within the <Declarations> tag since it does not implement 'mx.core.IUIComponent'.
'Label' declaration must be contained within the <Declarations> tag since it does not impl开发者_如何转开发ement 'mx.core.IUIComponent'.
Any suggestions please? Is there some simplest possible spark "container"? And do I need a "container" at all if I use (and want to use) absolute coordinates?
I recommend you to use s:Group
. And you can omit layout
declaration as far as BasicLayout
is default layout.
UIComponent
isn't container so it hasn't default placeholder for children to add them with MXML.
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