line-chart-widget

main.dart

import 'dart:math';

void main() {
  runApp(MyApp());
}

final rng = Random();
const dayCount = 7;

class MyApp extends StatelessWidget {
  final scores = List<Score>.generate(dayCount, (index) {
    final y = rng.nextDouble() * 30.0;
    final d = DateTime.now().add(Duration(days: -dayCount + index));
    return Score(y, d);
  });

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter LineChart Demo',
      home: LineChartWidget(scores),
    );
  }
}