Flex中如何在PieChart的数据发生变化时弹出显示
<?xml version="1.0"?><mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="horizontal" verticalAlign="middle" backgroundColor="white" viewSourceURL="srcview/index.html"> <mx:Script> <!; if (evt.value >= 0) { arr = 0.2; } series.perWedgeExplodeRadius = arr; } private function list_itemRollOver(evt:ListEvent):void { var arr:Array = []; arr = 0.2; series.perWedgeExplodeRadius = arr; /* Update the slider. */ slider.value = evt.rowIndex; } private function comboBox_change(evt:ListEvent):void { var field:String = evt.currentTarget.selectedItem.label; series.field = field; } private function series_labelFunc(item:Object, field:String, index:Number, percentValue:Number):String { return item.name + ":\n" + field + ":" + Number(item).toFixed(3); } ]]> </mx:Script> <mx:ArrayCollection id="arrColl"> <mx:source> <mx:Array> <mx:Object name="R Winn" obp=".353" slg=".445" avg=".300" /> <mx:Object name="P Feliz" obp=".290" slg=".418" avg=".253" /> <mx:Object name="O Vizquel" obp=".305" slg=".316" avg=".246" /> <mx:Object name="B Molina" obp=".298" slg=".433" avg=".276" /> <mx:Object name="R Durham" obp=".295" slg=".343" avg=".218" /> </mx:Array> </mx:source> </mx:ArrayCollection> <mx:ApplicationControlBar dock="true"> <mx:Form styleName="plain"> <mx:FormItem label="explode wedge:"> <mx:HSlider id="slider" minimum="-1" maximum="{arrColl.length - 1}" snapInterval="1" liveDragging="true" dataTipPrecision="0" change="slider_change(event);" /> </mx:FormItem> <mx:FormItem label="field"> <mx:ComboBox id="comboBox" change="comboBox_change(event);"> <mx:dataProvider> <mx:Array> <mx:Object label="avg" /> <mx:Object label="obp" /> <mx:Object label="slg" /> </mx:Array> </mx:dataProvider> </mx:ComboBox> </mx:FormItem> </mx:Form> </mx:ApplicationControlBar> <mx:List id="list" dataProvider="{arrColl}" labelField="name" width="100" height="100%" itemRollOver="list_itemRollOver(event);" /> <mx:PieChart id="chart" height="100%" width="100%" showDataTips="true" dataProvider="{arrColl}"> <mx:series> <mx:PieSeries id="series" nameField="name" field="avg" labelPosition="callout" labelFunction="series_labelFunc" filters="[]" /> </mx:series> </mx:PieChart></mx:Application>
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