Question

我们知道使用文件引用保存方法我们可以将组件保存为flex 3中的图像，但我使用的是flex 3.0版本，我没有在文件引用类中获取save方法。它可以从flex 3.4.0开始使用。我们是否有任何其他选项可以使用flex builder IDE在Flex 3.0编译器中对组件进行映像？

提前致谢

Answer 1

如果这种情况允许使用HTML5，则可能。

    public function capturePage(): void
    {
        var bmp:BitmapData = new BitmapData(this.width, this.height);
        bmp.draw(this, new Matrix());

        // convert to JPEG.
        var fileData:ByteArray = new JPEGEncoder().encode(bmp);

        var base64: Base64Encoder = new Base64Encoder();
        base64.encodeBytes(fileData);

        ExternalInterface.call("saveAsImage", "data:image/jpeg;base64,"+base64.toString());
    }

index.template.html

<title>${title}</title>
<script language="JavaScript" type="text/javascript">
function saveAsImage(value)
{
    // open new window. You will be able to save as image.
    window.open(value);

    // or use HTML5 FileWriter API here.
}
</script>
<script src="AC_OETags.js" language="javascript"></script>

Answer 2

        private function doSave():void 
        {              
             var bmp:BitmapData = new BitmapData(canvas.width,canvas.height);
            bmp.draw(canvas,new Matrix());

            var filedate:ByteArray = new JPEGEncoder().encode(bmp);

            var uploadURL:URLRequest = new URLRequest();
            uploadURL.url = parentApplication.ServerUrl+"...../imageupload.php?fileName="+yourfilename;
            uploadURL.contentType = 'application/octet-stream';
            uploadURL.method = URLRequestMethod.POST;
            uploadURL.data = filedate;
            var urlLoader:URLLoader = new URLLoader();
            urlLoader.addEventListener(Event.COMPLETE, completeHandler);                
            urlLoader.load(uploadURL);
        }

PHP文件：imageupload.php

    <?php
      $fileName = $_REQUEST['fileName'] . ".jpeg";
      $fp = fopen( "../tempfolder/".$fileName, 'wb' );
      fwrite( $fp, $GLOBALS[ 'HTTP_RAW_POST_DATA' ] );
      fclose( $fp );
     ?>

如何在flex中将组件转换为Image？

2 个答案: