Question

In a flex project that I have that is designed to scale 100% to the web window, I have a spark list. And I have a simple itemrenderer that takes the data and displays a name, and a message. Just think of it like a simple instant messenger display. The problem is that for my msg_txt label I want to give it a width thats the width of the parent list thats holding it.

I tried turning the horizontalScrollPolicy to off, also tried width=”{this.parent.parent.width}” (as well as this.parent.width) for the spark label inside the item renderer.

and in the label i tried some things like left=”0″ right=”0″ maxWidth=”{this.width}” but nothing really does the trick.

How can I make this label have a max width of the list thats holding it, AND make sure it resizes if the size of the browser changes and the list size changes?

heres the list:

<s:List id="chat_content" width="100%" height="100%"
                alternatingItemColors="[#EEEEEE,#E6E6E6]" contentBackgroundColor="#EEEEEE"
                horizontalScrollPolicy="off" itemRenderer="renderers.ActiveChatItemRenderer">
        </s:List>

heres the itemrenderer:

<?xml version="1.0" encoding="utf-8"?>
<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
                xmlns:s="library://ns.adobe.com/flex/spark">

    <fx:Script>
        <![CDATA[
            import mx.core.FlexGlobals;
            import mx.events.FlexEvent;

            import spark.components.List;

            override public function set data(value:Object):void {
                super.data = value;
                if (data == null)
                    return;

                if(data.systemMsg)
                {

                }
                if(data.name)
                {
                    name_label.text=data.name;
                }
                if(data.icon)
                {

                }
                if(data.msg)
                {
                    msg_txt.text=data.msg;
                }




            }





        ]]>
    </fx:Script>

    <s:states>
        <s:State name="normal" />
        <s:State name="hovered" />
        <s:State name="selected" />
    </s:states>

    <s:HGroup id="container" horizontalAlign="left" verticalAlign="top" paddingTop="10" paddingBottom="10">
        <s:VGroup horizontalAlign="center" verticalAlign="middle"
                  width="100">
            <s:Label id="name_label" fontWeight="bold" text="Name: "
                     fontSize="18"/>
        </s:VGroup>
        <s:Label id="msg_txt" text="msg text here" width="{this.parent.parent.width}"/>


    </s:HGroup>

</s:ItemRenderer>

Answer 1

Did you tried with percentWidth and percentHeight programatically once the itemRenderer has been created ( creationComplete )?

or

I haven’t tried next:

<s:ItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
                xmlns:s="library://ns.adobe.com/flex/spark" width="100%" height="100%">