Flutter入门:Table 横向滚动+固定表头/固定第一列实现

先上实现图:

代码:

  //创建一个表单
  Widget _buildChart() {
    return Container
      child: Row(
        children: <Widget>[
          Container(
            child: Table(children: _buildTableColumnOne()),
            width: numRowWidth, //固定第一列
          ),
          Expanded(
              child: SingleChildScrollView(
                  scrollDirection: Axis.horizontal,
                  child: Container(
                    child: Table(children: _buildTableRow()),
                    width: numRowWidth * 6,
                  )))
        ],
      ),
    );
  }

  //创建第一列行

  double numRowWidth = 100.0;//单个表宽
  double numRowHeight = 48.0;//表格高
 
 List<TableRow> _buildTableColumnOne() {
    List<TableRow> returnList = new List();
    returnList.add(_buildSingleColumnOne(-1));
    for (int i = 0; i < 5; i++) {
      returnList.add(_buildSingleColumnOne(i));
    }
    return returnList;
  }

  //创建tableRows
  List<TableRow> _buildTableRow() {
    List<TableRow> returnList = new List();
    returnList.add(_buildSingleRow(-1));
    for (int i = 0; i < 5; i++) {
      returnList.add(_buildSingleRow(i));
    }
    return returnList;
  }

  //创建第一列tableRow
  TableRow _buildSingleColumnOne(int index) {
    return TableRow(
        //第一行样式 添加背景色
        children: [
          //增加行高
          _buildSideBox(index == -1 ? '纸品种类' : "黄边纸", index == -1),
        ]);
  }

  //创建一行tableRow
  TableRow _buildSingleRow(int index) {
    return TableRow(
        //第一行样式 添加背景色
        children: [
          _buildSideBox(index == -1 ? '实重' : "2676.30", index == -1),
          _buildSideBox(index == -1 ? '金额' : "100.30", index == -1),
          _buildSideBox(index == -1 ? '扣重' : "100", index == -1),
          _buildSideBox(index == -1 ? '单价(元/kg)' : "11640", index == -1),
          _buildSideBox(index == -1 ? '磅重(kg)' : "45", index == -1),
        ]);
  }

  //创建单个表格
  Widget _buildSideBox(String title, isTitle) {
    return SizedBox(
        height: numRowHeight,
        width: numRowWidth,
        child: Container(
            alignment: Alignment.center,
            decoration: BoxDecoration(
                border: Border(
                    bottom: BorderSide(width: 0.33, color:Colours.cl_D0D0D0))),
            child: Text(
              title,
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
              style: TextStyle(
                  fontSize: isTitle ? 14 : 12, color: Colours.gray_33),
            )));
  }

实现思路:Row内嵌套横向Scrollview,表头单独处理.