Flex 不支持GIF的解决方法

　　GIF图片，加载到Image后，不能动起来，需要把 gif 转换成 swf ,才可以。
　　可以使用GIFPlayer 0.4.zip  来解决这个问题。 下载地址：http://code.google.com/p/as3gif/downloads/list
　　下载后，把org下所有目录及文件拷到工程下，即可。 The GIFPlayer class is used to play the gif animation.  It can load gif file from an URLRequest object or a ByteArray object.  Example:  The GIFEncoder class use to create a gif file by frames.  Example(draw two frames and add to GIFEncoder then play the gif data by GIFPlayer):  extendsSprite          {                  publicfunctionMain():void                  {                          var frames:Array= createFrames();                                                    var encoder:GIFEncoder=newGIFEncoder();                                                    encoder.setRepeat(0);                   //AUTO LOOP                          encoder.setDelay(500);                                                    encoder.start();                        //MUST HAVE!                                                    encoder.addFrame(frames[0]);                          encoder.addFrame(frames[1]);                                                    encoder.finish();                       //MUST HAVE!                                                    playGIF(encoder.stream);                  }                                    privatefunction playGIF(data:ByteArray):void                  {                          data.position =0;                                                    var player:GIFPlayer=newGIFPlayer();                          player.loadBytes(data);                                                    addChild(player);                  }                                    privatefunction createFrames():Array                  {                          var shape:Shape=newShape();                          shape.graphics.lineStyle(1,0);                                                    shape.graphics.moveTo(60,0);                          shape.graphics.lineTo(60,120);                                                    var frame1:BitmapData=newBitmapData(120,120);                          frame1.draw(shape);                                                    shape.graphics.clear();                                                    shape.graphics.lineStyle(1,0);                          shape.graphics.moveTo(0,60);                          shape.graphics.lineTo(120,