flutter listview 设置分割线

使用ListView.separated,就很简单了

  ListView.separated(
        scrollDirection: direction,
        itemBuilder: (context, index) {
          final Axis slidableDirection =
              direction == Axis.horizontal ? Axis.vertical : Axis.horizontal;
          return _getSlidableWithLists(context, index, slidableDirection);
        },
        itemCount: list.length,
        separatorBuilder: (BuildContext context, int index) =>
            Divider(height: 1.0, color: AppColors.separator),
      );

如果使用ListView.builder,没有这个属性,需要自己在itemBuilder中增加下划线

ListView.builder(
              shrinkWrap: true,
              physics: NeverScrollableScrollPhysics(),
              itemBuilder: (BuildContext context, int index) =>
                  GroupContactItem(_headData[index], groupModel),
              itemCount: _headData.length)
        ],

效果如下:

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