explodeAll property
Enables or disables exploding all the slices at the initial rendering.
Defaults to false.
Widget build(BuildContext context) {
   return Container(
       child: SfCircularChart(
           series: <PieSeries<ChartData, String>>[
               PieSeries<ChartData, String>(
                 explodeAll: true
               ),
           ],
       )
   );
}
Implementation
final bool explodeAll;