Flex中如何通过displayAsPassword属性，设置TextInput文本显示密码形式(*)

main.mxml

1. <?xml version="1.0" encoding="utf-8"?>
2. <mx:Applicationxmlns:mx="http://www.adobe.com/2006/mxml"
3. layout="vertical"
4. verticalAlign="middle"
5. backgroundColor="white">
7. <mx:ApplicationControlBardock="true">
8. <mx:CheckBoxid="checkBox"
9. label="displayAsPassword:"
10. labelPlacement="left"
11. selected="true"
12. change="textInput.displayAsPassword = checkBox.selected;"/>
13. </mx:ApplicationControlBar>
15. <mx:TextInputid="textInput"
16. text="password"
17. displayAsPassword="true"/>
19. </mx:Application>