如何在纵向滚动中插入横向滚动列表呢？
return LayoutBuilder(builder: (BuildContext context, BoxConstraints constraints) {return SingleChildScrollView(scrollDirection: Axis.horizontal,child: Row(children: urls.map((item) {return Container(margin: const EdgeInsets.all(5.0),height: 80.0,width: 80.0,decoration: BoxDecoration(image: DecorationImage(image: NetworkImage(item),fit: BoxFit.cover),),);}).toList(),),);},);
使用SingleChildScrollView，然后设置scrollDirection为Axis.horizontal，嵌套一个raw就行了
