gradient property Null safety

Gradient? gradient
final

A gradient to use when filling the range.

gradient of GaugeRange only support SweepGradient and specified SweepGradient.stops are applied within the range value.

Defaults to null.

Widget build(BuildContext context) {
   return Container(
       child: SfRadialGauge(
         axes:<RadialAxis>[RadialAxis(
         ranges: <GaugeRange>[GaugeRange(startValue: 0,
         endValue: 100, startWidth: 10, endWidth: 10,
         gradient:SweepGradient(
           colors: const <Color>[Colors.red, Color(0xFFFFDD00),
            Color(0xFFFFDD00), Color(0xFF30B32D),],
           stops: const <double>[0, 0.2722222, 0.5833333, 0.777777,],
         ))],
           )]
       ));
}

Implementation

final Gradient? gradient;