pointColorMapper property Null safety

ChartIndexedValueMapper<Color>? pointColorMapper
final, inherited

Maps the field name, which will be considered as data point color.

Defaults to null

Widget build(BuildContext context) {
   return Container(
       child: SfFunnelChart(
           series: FunnelSeries<ChartData, String>(
              pointColorMapper: (ChartData data, _) => data.pointColor,
            )
       ));
}
class ChartData {
  ChartData(this.xVal, this.yVal, [this.pointColor]);
  final String xVal;
  final int yVal;
  final Color pointColor;
}

Implementation

@override
final ChartIndexedValueMapper<Color>? pointColorMapper;