banner宣传图支持二维码识别

pages/activity/goodList/goodList.wxml

@@ -1,3 +1,3 @@
 <view class="good_list">
-  <image src="http://reader-wx.ai160.com/images/reader/activity/ad-detail.jpg" mode="widthFix"></image>
+  <image src="http://reader-wx.ai160.com/images/reader/activity/ad-detail.jpg" mode="widthFix" show-menu-by-longpress="true"></image>
 </view>