ICellRenderer  - AS3 Flash

package
{ 
    import fl.controls.List;
    import fl.data.DataProvider;
    import fl.events.ListEvent;
    import flash.display.Sprite;
    import flash.events.Event;
    
    public class ICellRendererExample extends Sprite
    {
        public function ICellRendererExample() {
            var dp:DataProvider = new DataProvider();
            var totalEntries:Number = 42;
            var i:Number;
            for(i=0; i<totalEntries; i++) {
                dp.addItem( { label:Math.random(), data:null } );            
            }
            
            var myList = new List();
            myList.setSize(300,300);
            myList.move(10,10);
            myList.setStyle('cellRenderer', MyRenderer);    
            myList.dataProvider = dp;
            addChild(myList);
        }
    }
}

package
{
    import fl.controls.LabelButton;
    import fl.controls.listClasses.ICellRenderer;
    import fl.controls.listClasses.ListData;
    
    public class MyRenderer extends LabelButton implements ICellRenderer {
        private var _listData:ListData;
        private var _data:Object;
        
        public function MyRenderer() {
        }

        public function set listData(newListData:ListData):void {
            _listData = newListData;
            label = "Random: " + _listData.label;
            drawRandomColor();
        }

        private function drawRandomColor():void {
            graphics.beginFill(Math.random()*0xFFFFFF);
            graphics.drawRect(0,0,20,20);
            graphics.endFill();            
        }

        public function get listData():ListData {
            return _listData;
        }

        public function set data(newData:Object):void {
            _data = newData;
        }

        public function get data():Object {
            return _data;
        }
    }
}