Flutter日历滑动选择插件calendar_slider的使用

Getting Started

1. Depend on it

在你的项目的 pubspec.yaml 文件中添加依赖：

dependencies:
  flutter:
    sdk: flutter
  calendar_slider: ^最新版本号

2. Install it

从命令行安装依赖包：

flutter pub get

3. Import it

在你的项目中导入 calendar_slider 包：

import 'package:calendar_slider/calendar_slider.dart';

Demo

以下是 calendar_slider 插件的一些示例图片，展示了不同的配置选项：

SelectedDayPosition.center	SelectedDayPosition.Left	SelectedDayPosition.Right

FullCalendarScroll.vertical	FullCalendarScroll.horizontal

动态演示

How to use?

基本用法

使用 CalendarSlider 小部件：

CalendarSlider(
  initialDate: DateTime.now(),
  firstDate: DateTime.now().subtract(Duration(days: 140)),
  lastDate: DateTime.now().add(Duration(days: 4)),
  onDateSelected: (date) {
    print(date);
  },
)

Props

以下是一些常用的属性及其默认值：

示例代码

以下是一个完整的示例代码，展示了如何在 Flutter 应用中使用 calendar_slider 插件：

import 'dart:math';
import 'package:calendar_slider/calendar_slider.dart';
import 'package:flutter/material.dart';

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

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

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Example for Calendar Slider',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      darkTheme: ThemeData(
        brightness: Brightness.dark,
        primarySwatch: Colors.blue,
      ),
      home: const ExamplePage(),
    );
  }
}

class ExamplePage extends StatefulWidget {
  const ExamplePage({Key? key}) : super(key: key);

  @override
  State<ExamplePage> createState() => _ExamplePageState();
}

class _ExamplePageState extends State<ExamplePage> {
  final CalendarSliderController _firstController = CalendarSliderController();
  final CalendarSliderController _secondController = CalendarSliderController();

  late DateTime _selectedDateAppBBar;
  late DateTime _selectedDateNotAppBBar;

  Random random = Random();

  @override
  void initState() {
    super.initState();
    _selectedDateAppBBar = DateTime.now();
    _selectedDateNotAppBBar = DateTime.now();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: CalendarSlider(
        controller: _firstController,
        selectedDayPosition: SelectedDayPosition.center,
        fullCalendarScroll: FullCalendarScroll.vertical,
        backgroundColor: Colors.lightBlue,
        fullCalendarWeekDay: WeekDay.short,
        selectedTileBackgroundColor: Colors.white,
        monthYearButtonBackgroundColor: Colors.white,
        monthYearTextColor: Colors.black,
        tileBackgroundColor: Colors.lightBlue,
        selectedDateColor: Colors.black,
        dateColor: Colors.white,
        tileShadow: BoxShadow(
          color: Colors.black.withOpacity(1),
        ),
        locale: 'en',
        initialDate: DateTime.now(),
        firstDate: DateTime.now().subtract(const Duration(days: 100)),
        lastDate: DateTime.now().add(const Duration(days: 100)),
        onDateSelected: (date) {
          setState(() {
            _selectedDateAppBBar = date;
          });
        },
      ),
      body: Center(
        child: Column(
          children: [
            ElevatedButton(
              onPressed: () {
                _firstController.goToDay(DateTime.now());
              },
              child: const Text("Go to today"),
            ),
            Text('Selected date is $_selectedDateAppBBar'),
            const SizedBox(
              height: 20.0,
            ),
            CalendarSlider(
              controller: _secondController,
              selectedDayPosition: SelectedDayPosition.center,
              locale: 'en',
              selectedDateColor: Colors.black,
              initialDate: DateTime.now(),
              firstDate: DateTime.now().subtract(const Duration(days: 140)),
              lastDate: DateTime.now().add(const Duration(days: 400)),
              events: List.generate(
                  100,
                  (index) => DateTime.now()
                      .subtract(Duration(days: index * random.nextInt(5)))),
              onDateSelected: (date) {
                setState(() {
                  _selectedDateNotAppBBar = date;
                });
              },
              fullCalendarBackgroundImage: Image.network(
                'https://www.kindpng.com/picc/m/355-3557482_flutter-logo-png-transparent-png.png',
                scale: 5.0,
              ),
            ),
            ElevatedButton(
              onPressed: () {
                _secondController.goToDay(DateTime.now());
              },
              child: const Text("Go to today"),
            ),
            Text('Selected date is $_selectedDateNotAppBBar'),
          ],
        ),
      ),
    );
  }
}

Thank you

特别感谢所有为这个包做出贡献的人。确保查看他们的贡献。

希望这个插件能帮助你在 Flutter 应用中实现日历滑动选择功能！如果有任何问题或建议，请随时联系作者。