Android 微信SDK图片分享（checkArgs fail, thumbData is invalid）

微信官网给的Demo中。图片的分享例子他是这么描述的：

String url = "http://pic2.nipic.com/20090506/1478953_125254084_2.jpg";

                            try{
                                WXImageObject imgObj = new WXImageObject();
                                imgObj.imageUrl = url;

                                WXMediaMessage msg = new WXMediaMessage();
                                msg.mediaObject = imgObj;

                                Bitmap bmp = BitmapFactory.decodeStream(new URL(url).openStream());
                                Bitmap thumbBmp = Bitmap.createScaledBitmap(bmp, THUMB_SIZE, THUMB_SIZE, true);
                                bmp.recycle();
                                msg.thumbData = Util.bmpToByteArray(thumbBmp, true);

                                SendMessageToWX.Req req = new SendMessageToWX.Req();
                                req.transaction = buildTransaction("img");
                                req.message = msg;
                                req.scene = isTimelineCb.isChecked() ? SendMessageToWX.Req.WXSceneTimeline : SendMessageToWX.Req.WXSceneSession;
                                api.sendReq(req);

                                //finish();
                            } catch(Exception e) {
                                e.printStackTrace();
                                Toast.makeText(SendToWXActivity.this, "Error msg"+e.toString(), ).show();
                            }

                            break;

而在实际的使用过程中，总是报这样的一个错误，怎么也调用不到微信的分享界面。

05-06 10:21:35.276: E/MicroMsg.SDK.WXMediaMessage(19273): checkArgs fail, thumbData is invalid 

好像是图片处理那边出现了问题。细看这个代码。里面有一个将bitmap对象转化成byte数据字节的对象。原先的代码是这样的如下所示：

  public static byte[] bmpToByteArray(final Bitmap bmp, final boolean needRecycle) {
        ByteArrayOutputStream output = new ByteArrayOutputStream();
        bmp.compress(CompressFormat.PNG, , output);
        if (needRecycle) {
            bmp.recycle();
        }

        byte[] result = output.toByteArray();
        try {
            output.close();
        } catch (Exception e) {
            e.printStackTrace();
        }

        return result;
    }

现将其改成如下所示的：

 public static byte[] bmpToByteArray(final Bitmap bmp, final boolean needRecycle) {
        int i;
        int j;
        if (bmp.getHeight() > bmp.getWidth()) {
            i = bmp.getWidth();
            j = bmp.getWidth();
        } else {
            i = bmp.getHeight();
            j = bmp.getHeight();
        }

        Bitmap localBitmap = Bitmap.createBitmap(i, j, Bitmap.Config.RGB_565);
        Canvas localCanvas = new Canvas(localBitmap);

        while (true) {
            localCanvas.drawBitmap(bmp, new Rect(, , i, j), new Rect(, ,i, j), null);
            if (needRecycle)
                bmp.recycle();
            ByteArrayOutputStream localByteArrayOutputStream = new ByteArrayOutputStream();
            localBitmap.compress(Bitmap.CompressFormat.JPEG, ,
                    localByteArrayOutputStream);
            localBitmap.recycle();
            byte[] arrayOfByte = localByteArrayOutputStream.toByteArray();
            try {
                localByteArrayOutputStream.close();
                return arrayOfByte;
            } catch (Exception e) {
                //F.out(e);
            }
            i = bmp.getHeight();
            j = bmp.getHeight();
        }
    }

现在就可以对图片进行分享了。 有更好的解决办法，希望可以留言 ！！！