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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,117 +1,106 @@ | ||
| import 'package:example/radar_chart/radar_chart_page.dart'; | ||
| import 'package:example/scatter_chart/scatter_chart_page.dart'; | ||
| import 'package:fl_chart/fl_chart.dart'; | ||
| import 'package:flutter/material.dart'; | ||
|
|
||
| import 'bar_chart/bar_chart_page.dart'; | ||
| import 'bar_chart/bar_chart_page2.dart'; | ||
| import 'bar_chart/bar_chart_page3.dart'; | ||
| import 'line_chart/line_chart_page.dart'; | ||
| import 'line_chart/line_chart_page2.dart'; | ||
| import 'line_chart/line_chart_page3.dart'; | ||
| import 'line_chart/line_chart_page4.dart'; | ||
| import 'pie_chart/pie_chart_page.dart'; | ||
| import 'utils/platform_info.dart'; | ||
| import 'scatter_chart/scatter_chart_page.dart'; | ||
|
|
||
| void main() => runApp(const MyApp()); | ||
|
|
||
| class MyApp extends StatelessWidget { | ||
| const MyApp({Key? key}) : super(key: key); | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return MaterialApp( | ||
| return const MaterialApp( | ||
| title: 'FlChart Demo', | ||
| showPerformanceOverlay: false, | ||
| theme: ThemeData( | ||
| primaryColor: const Color(0xff262545), | ||
| primaryColorDark: const Color(0xff201f39), | ||
| brightness: Brightness.dark, | ||
| ), | ||
| home: const MyHomePage(title: 'fl_chart'), | ||
| home: MyHomePage(), | ||
| ); | ||
| } | ||
| } | ||
|
|
||
| class MyHomePage extends StatefulWidget { | ||
| const MyHomePage({Key? key, required this.title}) : super(key: key); | ||
| final String title; | ||
| const MyHomePage({Key? key}) : super(key: key); | ||
|
|
||
| @override | ||
| _MyHomePageState createState() => _MyHomePageState(); | ||
| } | ||
|
|
||
| class _MyHomePageState extends State<MyHomePage> { | ||
| int _currentPage = 0; | ||
| final List<ShowingTooltipIndicators> _showingTouchedTooltips = []; | ||
|
|
||
| final _controller = PageController(initialPage: 0); | ||
| final _duration = const Duration(milliseconds: 300); | ||
| final _curve = Curves.easeInOutCubic; | ||
| final _pages = const [ | ||
| LineChartPage(), | ||
| BarChartPage(), | ||
| BarChartPage2(), | ||
| PieChartPage(), | ||
| LineChartPage2(), | ||
| LineChartPage3(), | ||
| LineChartPage4(), | ||
| BarChartPage3(), | ||
| ScatterChartPage(), | ||
| RadarChartPage(), | ||
| ]; | ||
|
|
||
| bool get isDesktopOrWeb => PlatformInfo().isDesktopOrWeb(); | ||
|
|
||
| @override | ||
| void initState() { | ||
| super.initState(); | ||
| _controller.addListener(() { | ||
| setState(() { | ||
| _currentPage = _controller.page!.round(); | ||
| }); | ||
| }); | ||
| } | ||
| final Map<int, List<int>> _showingTouchedIndicators = {}; | ||
|
|
||
| @override | ||
| Widget build(BuildContext context) { | ||
| return Scaffold( | ||
| body: SafeArea( | ||
| child: PageView( | ||
| physics: isDesktopOrWeb | ||
| ? const NeverScrollableScrollPhysics() | ||
| : const AlwaysScrollableScrollPhysics(), | ||
| controller: _controller, | ||
| children: _pages, | ||
| ), | ||
| ), | ||
| bottomNavigationBar: isDesktopOrWeb | ||
| ? Container( | ||
| padding: const EdgeInsets.all(16), | ||
| color: Colors.transparent, | ||
| child: Row( | ||
| mainAxisSize: MainAxisSize.max, | ||
| children: [ | ||
| Visibility( | ||
| visible: _currentPage != 0, | ||
| child: FloatingActionButton( | ||
| onPressed: () => _controller.previousPage( | ||
| duration: _duration, curve: _curve), | ||
| child: const Icon(Icons.chevron_left_rounded), | ||
| ), | ||
| child: Center( | ||
| child: SizedBox( | ||
| width: 200, | ||
| height: 100, | ||
| child: LineChart( | ||
| LineChartData( | ||
| lineBarsData: [ | ||
| LineChartBarData( | ||
| colors: [Colors.green], | ||
| spots: const [ | ||
| FlSpot(0, 0), | ||
| FlSpot(1, 1), | ||
| FlSpot(2, 1), | ||
| ], | ||
| showingIndicators: _showingTouchedIndicators[0] ?? [], | ||
| ), | ||
| const Spacer(), | ||
| Visibility( | ||
| visible: _currentPage != _pages.length - 1, | ||
| child: FloatingActionButton( | ||
| onPressed: () => _controller.nextPage( | ||
| duration: _duration, curve: _curve), | ||
| child: const Icon(Icons.chevron_right_rounded), | ||
| ), | ||
| LineChartBarData( | ||
| colors: [Colors.red], | ||
| spots: const [ | ||
| FlSpot(0, 3), | ||
| FlSpot(1, 2), | ||
| FlSpot(2, 0), | ||
| ], | ||
| showingIndicators: _showingTouchedIndicators[1] ?? [], | ||
| ), | ||
| ], | ||
| showingTooltipIndicators: _showingTouchedTooltips, | ||
| lineTouchData: LineTouchData( | ||
| enabled: true, | ||
| handleBuiltInTouches: false, | ||
| touchCallback: (event, touchResponse) { | ||
| if (!event.isInterestedForInteractions || | ||
| touchResponse?.lineBarSpots == null || | ||
| touchResponse!.lineBarSpots!.isEmpty) { | ||
| setState(() { | ||
| _showingTouchedTooltips.clear(); | ||
| _showingTouchedIndicators.clear(); | ||
| }); | ||
| return; | ||
| } | ||
|
|
||
| const showOnlyOnLineIndex = 0; | ||
| setState(() { | ||
| final sortedLineSpots = List.of( | ||
| touchResponse.lineBarSpots!.where((element) => | ||
| element.barIndex == showOnlyOnLineIndex)); | ||
| sortedLineSpots | ||
| .sort((spot1, spot2) => spot2.y.compareTo(spot1.y)); | ||
|
|
||
| _showingTouchedIndicators.clear(); | ||
|
|
||
| final touchedBarSpot = | ||
| touchResponse.lineBarSpots![showOnlyOnLineIndex]; | ||
| final barPos = touchedBarSpot.barIndex; | ||
| _showingTouchedIndicators[barPos] = [ | ||
| touchedBarSpot.spotIndex | ||
| ]; | ||
|
|
||
| _showingTouchedTooltips.clear(); | ||
| _showingTouchedTooltips | ||
| .add(ShowingTooltipIndicators(sortedLineSpots)); | ||
| }); | ||
| }, | ||
| ), | ||
| ), | ||
| ) | ||
| : null, | ||
| ), | ||
| ), | ||
| ), | ||
| ), | ||
| ); | ||
| } | ||
| } |
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