Is there a way to declare a skin inline?

Is there a way to declare a skin开发者_如何学JAVA inline in a Flex 4 MXML Component? If not inline in the component then in the declarations or library tag? Thx

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Yes you can in the declarations tag:

<s:Application>

<fx:Declarations>
    <fx:Component className="testSkin">
        <s:Skin>
            <s:Rect width="100%" height="100%">
                <s:fill>
                     <s:SolidColor/>
                </s:fill>
            </s:Rect>
            <s:Group id="contentGroup"/>
        </s:Skin>
    </fx:Component>  
</fx:Declarations>

<s:SkinnableContainer skinClass="{Class(testSkin)}"/>

</s:Application>

The above code is merely guidance, don't expect it to compile.

In my tests, there is no performance penalty to using inline skins.

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Use the skinClass style.

In MXML, like this:

<s:List skinClass="com.myCustomSkins.MyCustomListSkin" />

In ActionScript, do something like this:

 myListClass.setStyle('skinClass',com.myCustomSkins.MyCustomListSkin);

In CSS, do something like this:

myListClass{
 skinClass : ClassReference(com.myCustomSkins.MyCustomListSkin);
}

I'm not sure what a library tag is that you refer to in your question. This code is from memory, so my syntax may be a bit off.