onCrosshairPositionChanging property
Occurs when tapping the axis label. Here, you can get the appropriate axis that is tapped and the axis label text.
CrosshairBehavior _crosshairBehavior;
@override
void initState() {
_crosshairBehavior = CrosshairBehavior(enable: true);
super.initState();
}
Widget build(BuildContext context) {
return Container(
child: SfCartesianChart(
crosshairBehavior: crosshairBehavior,
onCrosshairPositionChanging: (CrosshairRenderArgs args) => crosshair(args)
)
);
}
void crosshair(CrosshairRenderArgs args) {
args.text = 'crosshair';
}
Implementation
final ChartCrosshairCallback? onCrosshairPositionChanging;