微信分享图片失败

E/MicroMsg.SDK.WXMediaMessage(17582): checkArgs fail, thumbData is invalid

发表于2014/11/27 9:43:17  3175人阅读

分类： android 微信

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(), 1000).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, 100, 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(0, 0, i, j),  new Rect(0, 0,i, j),  null); 

             if (needRecycle) 

                bmp.recycle(); 

            ByteArrayOutputStream localByteArrayOutputStream =  new ByteArrayOutputStream(); 

            localBitmap.compress(Bitmap.CompressFormat.JPEG, 100, 

                    localByteArrayOutputStream); 

            localBitmap.recycle(); 

             byte[] arrayOfByte = localByteArrayOutputStream.toByteArray(); 

             try { 

                localByteArrayOutputStream.close(); 

                 return arrayOfByte; 

            }  catch (Exception e) { 

                 // F.out(e); 

            } 

            i = bmp.getHeight(); 

            j = bmp.getHeight(); 

        } 

    }