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

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.

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.