Flex中如何利用maintainAspectRatio属性使VideoDisplay保持载入

转载 http://blog.minidx.com/2009/06/15/2607.html

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1. <?xml version="1.0" encoding="utf-8"?>
2. <mx:Application name="VideoDisplay_maintainAspectRatio_test"
3. ??????? xmlns:mx="http://www.adobe.com/2006/mxml"
4. ??????? layout="vertical"
5. ??????? verticalAlign="middle"
6. ??????? backgroundColor="white">
8. ??? <mx:ApplicationControlBar dock="true">
9. ??????? <mx:Form styleName="plain">
10. ??????????? <mx:FormItem label="maintainAspectRatio:">
11. ??????????????? <mx:CheckBox id="checkBox" />
12. ??????????? </mx:FormItem>
13. ??????? </mx:Form>
14. ??? </mx:ApplicationControlBar>
16. ??? <mx:VideoDisplay id="videoDisplay"
17. ??????????? maintainAspectRatio="{checkBox.selected}"
18. ??????????? source="http://helpexamples.com/flash/video/cuepoints.flv"
19. ??????????? autoPlay="false"
20. ??????????? width="200"
21. ??????????? height="200"
22. ??????????? click="videoDisplay.play();" />
24. </mx:Application>