Flex AIR 读取本地图片并得到读取图片的Bitmap对象

???private function init():void{
?????? this.rawChildren.addChild(bit);
????
?????? //读取本地图像文件
?????? var file:File = new File();
????? ?var imageTypes:FileFilter = new FileFilter("Images (*.jpg,*.jpeg,*.gif,*.png)","*.jpg; *.jpeg; *.gif; *.png");
????? ?file.addEventListener( Event.SELECT,this.onSelect );
????? ?file.browseForOpen( "Open",[ imageTypes ] );
????? ?
???}
???
???private function onSelect( e:Event ):void
???{
??????? //e.target.name 文件名称
??????? //e.target.nativePath 文件路径
????
??????? //获得读取图像文件的二进制数据
??????? var fileByte:ByteArray = new ByteArray();
??????? var fs:FileStream = new FileStream();?
??????? fs.open(File(e.target),FileMode.READ);?
??????? fs.readBytes( fileByte,fs.bytesAvailable );
??????? fs.close();?
????
??????? //使用Loader 对象将图像文件二进制数据加载进来（可加载SWF、GIF、JPEG 或 PNG 格式的文件）
??????? //使用Loader 是方便通过loader.contentLoaderInfo获得Bitmap对象
??????? this.loader.unload();
????????this.loader.loadBytes( fileByte );
????????loader.contentLoaderInfo.addEventListener(Event.COMPLETE,image_completeHandler);
???}
???
???private function image_completeHandler(event:Event):void{
?????? bit.bitmapData = Bitmap(event.currentTarget.content).bitmapData;

? ?}