Flex Chart 技巧 移除浮水印

Flex Chart 虽然有提供完整的试用功能
不过编译完成的图表会加上水印
 “Flex Data Visualization Trial”的字样。
既然是 AS，那事情就简单了
只要在 Flex Project 內加上以下 Class：
一定要创建mx.charts.chartClasses，覆盖FLEX自带的ChartLicenseHandler
package mx.charts.chartClasses {
 public class ChartsLicenseHandler {
 }
}
然后在 MXML 內明确引用该 Class，或是用 Metadata Tag 强迫编译
这样就可以去除浮水印了~!
<?xml version="1.0" encoding="utf-8"?>
<mx:Application  xmlns:mx="http://www.adobe.com/2006/mxml ">
<mx:Metadata>
 [Frame(extraClass="mx.charts.chartClasses.ChartsLicenseHandler")]
</mx:Metadata>
 <mx:Script>
   <![CDATA[ 
      
 import mx.collections.ArrayCollection;
   
 [Bindable]
 private var expensesAC:ArrayCollection = new ArrayCollection( [
  { Month: "Jan", Profit: -200, Expenses: 1500, Amount: 500 },
  { Month: "Feb", Profit: 1000, Expenses: 200, Amount: 600 },
  { Month: "Mar", Profit: 1500, Expenses: -500, Amount: 300 } ]);
 ]]>
 </mx:Script>
 
 <mx:SolidColor id="sc1" color="blue" alpha=".3" />
 <mx:SolidColor id="sc2" color="red" alpha=".3" />
 <mx:SolidColor id="sc3" color="green" alpha=".3" />
 
 <mx:Stroke id="s1" color="blue" weight="1"/>
 <mx:Stroke id="s2" color="red" weight="1"/>
 <mx:Stroke id="s3" color="green" weight="1"/>
 
 <mx:Panel title="PlotChart Control Example" height="100%" width="100%">
  <mx:PlotChart id="plot" height="100%" width="100%"
   paddingLeft="5" paddingRight="5"
   showDataTips="true" dataProvider="{expensesAC}" >
   <mx:series>
    <mx:PlotSeries xField="Expenses" yField="Profit"
     displayNam