onChanged property

  1. @override
ValueChanged<double>? onChanged
final

Signature for a callback that report that a value was changed for a marker pointer.

This snippet shows how to call onChanged function in SfLinearGauge.


SfLinearGauge(
markerPointers: [
LinearShapePointer(
 value: _pointerValue,
 onChanged: (double value){
   setState((){
      _pointerValue = value;
   })
  }
)])

Implementation

@override
final ValueChanged<double>? onChanged;