import flash.events.MouseEvent;import flash.utils.ByteArray;import flash.display.Bitmap;import flash.events.Event;import flash.net.FileReference;

var bytes:ByteArray;var bit:SampleImage;//SampleImage是库中的图片链接"类名"

//将图片序列化为ByteArrayfunction btnEncodeClick(e:MouseEvent):void {

    bytes = new ByteArray();

    bytes.writeUnsignedInt(bit.width);// 保存图像宽度;

    bytes.writeBytes(bit.getPixels(bit.rect));//保存图像字节数组;

    bytes.compress();

/*    var fileRef:FileReference = new FileReference();    fileRef.save(bytes,"image.bmd");    // 默认文件名: "image.bmd";*/

    trace(bytes.length);

    txtArray.text = "";

for (var i:uint=0,j=bytes.length; i<j; i++) {        txtArray.appendText(bytes[i].toString() + ",");    }

if (txtArray.text.length > 0) {        txtArray.text = txtArray.text.substring(0,txtArray.text.length - 1);    }

    btnEncode.enabled = false;    btnEncode.removeEventListener(MouseEvent.CLICK,btnEncodeClick);

    btnDecode.addEventListener(MouseEvent.CLICK,btnDecodeClick);}

//将ByteArray反序列化为图象function btnDecodeClick(e:MouseEvent):void {if (bytes == null) {return;    }

/*var ldr:URLLoader = new URLLoader();      ldr.dataFormat = URLLoaderDataFormat.BINARY;// ** 这里一定要指定dataFormat为URLLoaderDataFormat.BINARY **       ldr.addEventListener(Event.COMPLETE, on_fileLoad);      ldr.addEventListener(IOErrorEvent.IO_ERROR, on_fileLoadError);      var pathToBitmapDataFile:String = "image.bmd";    ldr.load(new URLRequest(pathToBitmapDataFile));*/

    bytes.uncompress();var iWidth:int = bytes.readUnsignedInt();var iHeight:int = ((bytes.length - 4) / 4) / iWidth;    var bmd:BitmapData = new BitmapData(iWidth,iHeight,true,0);    bmd.setPixels(bmd.rect, bytes); var bm:Bitmap = new Bitmap(bmd);    addChild(bm);    bm.y = 7;    bm.x = 330;

    btnDecode.enabled = false;    btnDecode.removeEventListener(MouseEvent.CLICK,btnDecodeClick);}

/*function on_fileLoadError(evt:Event):void {    trace(evt.type);}

function on_fileLoad(evt:Event):void {    if (evt.type == Event.COMPLETE) {        var data:ByteArray = URLLoader(evt.target).data as ByteArray;        if (data) {            try {                data.uncompress();            } catch (e:Error) {

            }

            // 此时的数据已经是解压后的字节数组了            // 数据解压后            var width:int = data.readUnsignedInt();// 起始的4个字节            // after data.uncompress()            var height:int = ((data.length - 4) / 4) / width;            // (data.length - 4) ** 去掉开始的4个字节,其余的便是位图的字节数组了 **            // ((data.length - 4) / 4) ** 每个像素4个字节长, 所以要除以4得到总像素数 **            // ((data.length - 4) / 4) / 宽度 ** 记住,因为是矩形才能这样计算出高度 **            var bmd:BitmapData = new BitmapData(width,height,true,0);// 32位支持alpha通道的位图            bmd.setPixels(bmd.rect, data);            // 数据的position指向第5个字节了;            var bm:Bitmap = new Bitmap(bmd);            addChild(bm);

        }

    }

}*/

function init():void {    bit = new SampleImage();var bitMap:Bitmap = new Bitmap(bit);    bitMap.x = 100;    bitMap.y = 7;    addChild(bitMap);    btnEncode.addEventListener(MouseEvent.CLICK,btnEncodeClick);

}

init();