onAxisLabelTapped property Null safety

ChartAxisLabelTapCallback? onAxisLabelTapped
final

Occurs when tapping the axis label. Here, you can get the appropriate axis that is tapped and the axis label text.

Widget build(BuildContext context) {
   return Container(
       child: SfCartesianChart(
           onAxisLabelTapped: (AxisLabelTapArgs args) => axis(args),
       ));
}
void axis(AxisLabelTapArgs args) {
  print(args.text);
}

Implementation

final ChartAxisLabelTapCallback? onAxisLabelTapped;