syncfusion_flutter_charts 18.4.43+1

A Flutter Charts library which includes data visualization widgets such as cartesian and circular charts, to create real-time, interactive, high-performance, animated charts.

example/lib/main.dart

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

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

class _ChartApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      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('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: Column(children: [
          //Initialize the chart widget
          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: DataLabelSettings(isVisible: true))
              ]),
          Padding(
            padding: const EdgeInsets.all(8.0),
            //Initialize the spark charts widget
            child: SfSparkLineChart.custom(
              //Enable the trackball
              trackball: SparkChartTrackball(
                  activationMode: SparkChartActivationMode.tap),
              //Enable marker
              marker: SparkChartMarker(
                  displayMode: SparkChartMarkerDisplayMode.all),
              //Enable data label
              labelDisplayMode: SparkChartLabelDisplayMode.all,
              xValueMapper: (int index) => data[index].year,
              yValueMapper: (int index) => data[index].sales,
              dataCount: 5,
            ),
          )
        ]));
  }
}

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

  final String year;
  final double sales;
}