createRenderer method

RadialBarSeriesRenderer createRenderer(
  1. CircularSeries<T, D> series
) 
Widget build(BuildContext context) {
   return Container(
       child: SfCircularChart(
           series: <RadialBarSeries<ChartData, String>>[
               RadialBarSeries<ChartData, String>(
                 useSeriesColor:true
               ),
             ],
       ));
}

Implementation

// Create the  Radial bar series renderer.
RadialBarSeriesRenderer createRenderer(CircularSeries<T, D> series) {
  RadialBarSeriesRenderer seriesRenderer;
  if (onCreateRenderer != null) {
    seriesRenderer = onCreateRenderer!(series) as RadialBarSeriesRenderer;
    // ignore: unnecessary_null_comparison
    assert(seriesRenderer != null,
        'This onCreateRenderer callback function should return value as extends from ChartSeriesRenderer class and should not be return value as null');
    return seriesRenderer;
  }
  return RadialBarSeriesRenderer();
}