Alternating tile background colors for items in a TileList control in Flex

The following example shows how you can set alternating background colors for tiles in a Flex TileList control by setting the alternatingItemColors style using MXML, CSS or ActionScript.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/08/10/alternating-tile-background-colors-for-items-in-a-tilelist-control-in-flex/ -->
<mx:Application name="TileList_alternatingItemColors_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:ArrayCollection id="arrColl">
        <mx:source>
            <mx:Array>
                <mx:Object label="One" />
                <mx:Object label="Two" />
                <mx:Object label="Three" />
                <mx:Object label="Four" />
                <mx:Object label="Five" />
                <mx:Object label="Six" />
                <mx:Object label="Seven" />
                <mx:Object label="Eight" />
                <mx:Object label="Nine" />
                <mx:Object label="Ten" />
                <mx:Object label="Eleven" />
                <mx:Object label="Twelve" />
            </mx:Array>
        </mx:source>
    </mx:ArrayCollection>

    <mx:TileList id="tileList"
            dataProvider="{arrColl}"
            columnCount="4"
            columnWidth="120"
            rowCount="3"
            rowHeight="80"
            alternatingItemColors="[#FFFFFF,#CCCCCC,#999999]" />

</mx:Application>

View source is enabled in the following example.

You can also set the alternatingItemColors style in an external .CSS file or <mx:Style /> block, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/08/10/alternating-tile-background-colors-for-items-in-a-tilelist-control-in-flex/ -->
<mx:Application name="TileList_alternatingItemColors_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Style>
        TileList {
            alternatingItemColors: #FFFFFF, #CCCCCC, #999999;
        }
    </mx:Style>

    <mx:ArrayCollection id="arrColl">
        <mx:source>
            <mx:Array>
                <mx:Object label="One" />
                <mx:Object label="Two" />
                <mx:Object label="Three" />
                <mx:Object label="Four" />
                <mx:Object label="Five" />
                <mx:Object label="Six" />
                <mx:Object label="Seven" />
                <mx:Object label="Eight" />
                <mx:Object label="Nine" />
                <mx:Object label="Ten" />
                <mx:Object label="Eleven" />
                <mx:Object label="Twelve" />
            </mx:Array>
        </mx:source>
    </mx:ArrayCollection>

    <mx:TileList id="tileList"
            dataProvider="{arrColl}"
            columnCount="4"
            columnWidth="120"
            rowCount="3"
            rowHeight="80" />

</mx:Application>

Or, you can set the alternatingItemColors style using ActionScript, as seen in the following example:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/08/10/alternating-tile-background-colors-for-items-in-a-tilelist-control-in-flex/ -->
<mx:Application name="TileList_alternatingItemColors_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function init():void {
                var colorArr:Array = [0xFFFFFF, 0xCCCCCC, 0x999999];
                tileList.setStyle("alternatingItemColors", colorArr);
            }
        ]]>
    </mx:Script>

    <mx:ArrayCollection id="arrColl">
        <mx:source>
            <mx:Array>
                <mx:Object label="One" />
                <mx:Object label="Two" />
                <mx:Object label="Three" />
                <mx:Object label="Four" />
                <mx:Object label="Five" />
                <mx:Object label="Six" />
                <mx:Object label="Seven" />
                <mx:Object label="Eight" />
                <mx:Object label="Nine" />
                <mx:Object label="Ten" />
                <mx:Object label="Eleven" />
                <mx:Object label="Twelve" />
            </mx:Array>
        </mx:source>
    </mx:ArrayCollection>

    <mx:TileList id="tileList"
            dataProvider="{arrColl}"
            columnCount="4"
            columnWidth="120"
            rowCount="3"
            rowHeight="80"
            initialize="init();" />

</mx:Application>

Due to popular demand, here is the “same” example in a more ActionScript friendly format:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/08/10/alternating-tile-background-colors-for-items-in-a-tilelist-control-in-flex/ -->
<mx:Application name="TileList_alternatingItemColors_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.collections.ArrayCollection;
            import mx.controls.TileList;

            private var arrColl:ArrayCollection;
            private var tileList:TileList;

            private function init():void {
                var arrColl:ArrayCollection = new ArrayCollection();
                arrColl.addItem({label:"One"});
                arrColl.addItem({label:"Two"});
                arrColl.addItem({label:"Three"});
                arrColl.addItem({label:"Four"});
                arrColl.addItem({label:"Five"});
                arrColl.addItem({label:"Six"});
                arrColl.addItem({label:"Seven"});
                arrColl.addItem({label:"Eight"});
                arrColl.addItem({label:"Nine"});
                arrColl.addItem({label:"Ten"});
                arrColl.addItem({label:"Eleven"});
                arrColl.addItem({label:"Twelve"});

                var colorArr:Array = [0xFFFFFF, 0xCCCCCC, 0x999999];

                tileList = new TileList();
                tileList.dataProvider = arrColl;
                tileList.columnCount = 4;
                tileList.columnWidth = 120;
                tileList.rowCount = 3;
                tileList.rowHeight = 80;
                tileList.setStyle("alternatingItemColors", colorArr);
                addChild(tileList);
            }
        ]]>
    </mx:Script>

</mx:Application>

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