一个简单的 Flutter 径向图表

    Chart(
      onItemDeselected: () {
        //handle OnItemDeselected
      },
      onItemSelected: (ChartItem item) {
        //handle OnItemSelected
      },
      tems: [
        ChartItem(
          value: 23,
          color: Colors.red,
        ),
        ChartItem(
          value: 12.342,
          color: Colors.blue,
        ),
        ChartItem(
          value: 45.3243,
          color: Colors.green,
        ),
        ChartItem(
          value: 23.234,
          color: Colors.yellow,
        ),
      ],
    );