ListView 传入数组时获取index方法

ListView(

  children:vm.hotQuestionList

     .asMap()

      .map(

        (index, e) {

          Widget widget =CellNormal(

              title: (index +1).toString() +'、'+ e.solutionTitle,

              showSuffixIcon:true,

              cellOnTap: () {

               vm.hotQuestionClick(e);

              });

         returnMapEntry(index, widget);

        },

      )

      .values

     .toList(),