Flex 连接远程服务器

转载http://hi.baidu.com/udking_love/blog/item/3bd737d1b9a525d4572c84cc.html

在Flex中利用NetConnection, NetStream和Video类显示video文件

2009年02月09日 星期一 下午 10:25

下 面的例子说明了利用NetConnection, NetStream和Video类，如何在Flex应用中显示一个FLV文件，以及如何使用onMetaData和onCuePoint事件处理视频数据 (video meta data)和提示点(cue points)。

1. <? xml version = " 1.0 " encoding = " utf-8 " ?>
2. <!-- http : //blog.flexexamples.com/2008/03/01/displaying-a-video-in-flex-using-the-netconnection-netstream-and-video-classes/ -->
3. < mx : Application xmlns : mx = " http://www.adobe.com/2006/mxml "
4. layout = " vertical "
5. verticalAlign = " middle "
6. backgroundColor = " white "
7. creationComplete = " init(); " viewSourceURL = " srcview/index.html " >
9. < mx : Script >
10. <! [ CDATA [
11. import mx . utils . ObjectUtil ;
13. private var nc : NetConnection ;
14. private var ns : NetStream ;
15. private var video : Video ;
16. private var meta : Object ;
18. private function init () : void {
19. var nsClient : Object = {} ;
20. nsClient . onMetaData = ns_onMetaData ;
21. nsClient . onCuePoint = ns_onCuePoint ;
23. nc = new NetConnection () ;
24. nc . connect ( null ) ;
26. ns = new NetStream ( nc ) ;
27. ns . play ( " http://www.helpexamples.com/flash/video/cuepoints.flv " ) ;
28. ns . client = nsClient ;
30. video = new Video () ;
31. video . attachNetStream ( ns ) ;
32. uic . addChild ( video ) ;
33. }
35. private function ns_onMetaData ( item : Object ) : void {
36. trace ( " meta " ) ;
37. meta = item ;
38. // Resize Video object to same size as meta data.
39. video . width = item . width ;
40. video . height = item . height ;
41. // Resize UIComponent to same size as Video object.
42. uic . width = video . width ;
43. uic . height = video . height ;
44. panel . title = " framerate: " + item . framerate ;
45. panel . visible = true ;
46. trace ( ObjectUtil . toString ( item )) ;
47. }
49. private function ns_onCuePoint ( item : Object ) : void {
50. trace ( " cue " ) ;
51. }
52. ]] >
53. < / mx:Script>
55. <mx:Panel id="panel" visible="false">
56. <mx:UIComponent id="uic" / >
57. < mx : ControlBar >
58. < mx : Button label = " Play/Pause " click = " ns.togglePause(); " / >
59. <mx:Button label="Rewind" click="ns.seek(0); ns.pause();" / >
60. < / mx:ControlBar>
61. < / mx : Panel >
63. < / mx:Application>

具体效果参见原文地址：

http://blog.flexexamples.com/2008/03/01/displaying-a-video-in-flex-using-the-netconnection-netstream-and-video-classes/