IWXAPI api = WXAPIFactory.createWXAPI(mContext, appId,false); // 初始化 WXEmojiObject WXFileObject fileObj = new WXFileObject(); fileObj.setContentLengthLimit(imagedata.length); // 20720536 // 20720508 // 20718183 Log.d(TAG, "length: "+imagedata.length); fileObj.fileData = imagedata; fileObj.filePath = path; WXMediaMessage msg = new WXMediaMessage(fileObj); // msg.mediaObject = fileObj; msg.title = title; // msg.description = description; //构造一个Req SendMessageToWX.Req req = new SendMessageToWX.Req(); req.transaction = "file" + System.currentTimeMillis(); req.message = msg; req.scene = SendMessageToWX.Req.WXSceneSession; api.sendReq(req);