Flex中如何通过创建新的XML命名空间（namespace），在MXML中使用flash.filters类

1. <?xml version="1.0" encoding="utf-8"?>
2. <mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"
3. xmlns:flash.filters="flash.filters.*"
4. layout="vertical"
5. verticalAlign="middle"
6. backgroundColor="white">
8. <mx:Arrayid="filterArray">
9. <flash.filters:DropShadowFilterid="dropShadowFilter"
10. angle="90"
11. blurX="5"
12. blurY="5"
13. distance="2"
14. alpha="0.9"
15. color="0xFF0000"/>
16. <flash.filters:BlurFilterid="blurFilter"
17. blurX="3"
18. blurY="3"
19. quality="3"/>
20. </mx:Array>
22. <mx:Labeltext="{flash.system.Capabilities.version}"
23. fontSize="32"
24. filters="{filterArray}"/>
26. </mx:Application>