syncfusion_flutter_core 25.1.41

Syncfusion Flutter Core is a dependent package for all the Syncfusion Flutter widgets.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:syncfusion_flutter_charts/charts.dart';

void main() {
  return runApp(ChartApp());
}

///Renders the chart widget
class ChartApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        title: 'Chart Demo',
        theme: ThemeData(primarySwatch: Colors.blue),
        home: _MyHomePage());
  }
}

class _MyHomePage extends StatefulWidget {
  //ignore: prefer_const_constructors_in_immutables
  _MyHomePage({Key? key}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<_MyHomePage> {
  List<_SalesData> data = <_SalesData>[
    _SalesData('Jan', 35),
    _SalesData('Feb', 28),
    _SalesData('Mar', 34),
    _SalesData('Apr', 32),
    _SalesData('May', 40)
  ];
  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(title: const Text('Syncfusion Flutter Chart')),
        body: SfCartesianChart(
            primaryXAxis: CategoryAxis(),
            // Chart title
            title: ChartTitle(text: 'Half yearly sales analysis'),
            // Enable legend
            legend: Legend(isVisible: true),
            // Enable tooltip
            tooltipBehavior: TooltipBehavior(enable: true),
            series: <ChartSeries<_SalesData, String>>[
              LineSeries<_SalesData, String>(
                  dataSource: data,
                  xValueMapper: (_SalesData sales, _) => sales.year,
                  yValueMapper: (_SalesData sales, _) => sales.sales,
                  name: 'Sales',
                  // Enable data label
                  dataLabelSettings: const DataLabelSettings(isVisible: true))
            ]));
  }
}

class _SalesData {
  _SalesData(this.year, this.sales);

  final String year;
  final double sales;
}