charts_flutter:显示相应x轴值颤动的y轴值

import 'package:charts_flutter/flutter.dart' as charts;

class DataPoint {
  final DateTime x;
  final double y;

  DataPoint(this.x, this.y);
}

final data = [
  DataPoint(DateTime(2022, 1, 1), 10),
  DataPoint(DateTime(2022, 1, 2), 15),
  DataPoint(DateTime(2022, 1, 3), 12),
  // 添加更多数据点...
];

final series = [
  charts.Series<DataPoint, DateTime>(
    id: 'Values',
    data: data,
    domainFn: (DataPoint point, _) => point.x,
    measureFn: (DataPoint point, _) => point.y,
  ),
];

final chart = charts.LineChart(
  series,
  animate: true,
);

@override
Widget build(BuildContext context) {
  return Scaffold(
    appBar: AppBar(
      title: Text('Chart Example'),
    ),
    body: Padding(
      padding: EdgeInsets.all(8.0),
      child: charts.FlutterChart(chart),
    ),
  );
}