shouldAlwaysShow property
final
Shows or hides the trackball. By default, the trackball will be hidden on touch. To avoid this, set this property to true.
Defaults to false
Widget build(BuildContext context) {
return Container(
child: SfCartesianChart(
trackballBehavior: TrackballBehavior(enable: true, shouldAlwaysShow: true),
));
}
Implementation
final bool shouldAlwaysShow