Flutter垂直热力图展示插件flutter_vertical_heatmap的使用

Flutter Vertical Heatmap

🐙 一个为Flutter提供的垂直热力图图表包，提供精美设计的UI和终极灵活性！

开始使用

依赖它

flutter pub add flutter_vertical_heatmap

或

在你的个人包的pubspec.yaml中添加以下行。

dependencies:
  flutter_vertical_heatmap: ^1.0.3

然后运行flutter pub get来安装。

导入它

import 'package:flutter_vertical_heatmap/flutter_vertical_heatmap.dart';

使用方法

下面是一个完整的示例demo，演示了如何使用flutter_vertical_heatmap插件创建一个简单的垂直热力图：

import 'package:flutter/material.dart';
import 'package:flutter_vertical_heatmap/flutter_vertical_heatmap.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Vertical Heatmap Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const HomePage(),
    );
  }
}

class HomePage extends StatefulWidget {
  const HomePage({super.key});

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  late Map<DateTime, int> datasets = {};

  @override
  void initState() {
    super.initState();
    var now = DateTime.now();
    datasets[DateTime(now.year, now.month, now.day)] = 1;
    datasets[DateTime(now.year, now.month, now.day - 1)] = 2;
    datasets[DateTime(now.year, now.month, now.day - 2)] = 3;
    datasets[DateTime(now.year, now.month, now.day - 3)] = 4;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: const Text('Flutter Vertical Heatmap'),
      ),
      body: SingleChildScrollView(
        child: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            children: [
              const SizedBox(height: 80),
              HeatMap(
                startDate: HeatMapUtils.oneYearBefore(DateTime.now()),
                endDate: DateTime.now(),
                monthLabel: HeatMapDefault.monthLabel,
                weekLabel: HeatMapDefault.weekLabel,
                datasets: datasets,
                size: 32,
                // 如果你不想使用颜色提示，留空colorTipSize或传递null。
                colorTipSize: 20,
                margin: const EdgeInsets.all(3),
                colorsets: {
                  1: Colors.green.shade100,
                  3: Colors.green.shade300,
                  5: Colors.green.shade500,
                  7: Colors.green.shade700,
                },
                colorTipLabel: const ["1~3", "3~5", "5~7", "7+"],
                onClick: (value) {
                  setState(() {
                    datasets[value] =
                        datasets[value] != null ? datasets[value]! + 1 : 1;
                  });
                  ScaffoldMessenger.of(context).clearSnackBars();
                  ScaffoldMessenger.of(context).showSnackBar(
                    SnackBar(
                      content: Text('${value.toString()} - ${datasets[value]}'),
                    ),
                  );
                },
              ),
              const SizedBox(height: 80),
            ],
          ),
        ),
      ),
    );
  }
}

许可证

MIT License

Copyright © 2024 Lee Chang Woo

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.