public void sendReq(Context context, String title, String content,

             Bitmap bmp, boolean isLine) {

         String url = BASE_URL;// 收到分享的好友点击信息会跳转到这个地址去,并且这个是必须要的

         WXWebpageObject Object = new WXWebpageObject();

         Object.webpageUrl = url;

         WXMediaMessage message = new WXMediaMessage(Object);

         message.title = title;// 不能太长，否则微信会提示出错。不过博主没验证过具体能输入多长。

         message.description = content;

         message.thumbData = Util.bmpToByteArray(bmp, true);

         SendMessageToWX.Req req = new SendMessageToWX.Req();

         req.transaction = buildTransaction("img/text");

         req.message = message;

         req.scene = isLine ? SendMessageToWX.Req.WXSceneTimeline

                 : SendMessageToWX.Req.WXSceneSession;

         api.sendReq(req);

     }