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

void main() {
  // Register your license here
  SyncfusionLicense.registerLicense(null);
  return runApp(ChartApp());
}

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> {
  @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: <SalesData>[
                    SalesData('Jan', 35),
                    SalesData('Feb', 28),
                    SalesData('Mar', 34),
                    SalesData('Apr', 32),
                    SalesData('May', 40)
                  ],
                  xValueMapper: (SalesData sales, _) => sales.year,
                  yValueMapper: (SalesData sales, _) => sales.sales,
                  // Enable data label
                  dataLabelSettings: DataLabelSettings(isVisible: true)
              )
            ]
        )
    );
  }
}

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

  final String year;
  final double sales;
}