Flutter时间选择器插件from_to_time_picker的使用

From To Time Picker

From To Time Picker 是一个简单的交互式时间范围选择器，允许用户通过选择开始时间和结束时间来确定一天中的特定时间段，并定义是上午（AM）还是下午（PM），最终返回所选持续时间的24小时格式。

使用方法

添加依赖

在项目的 pubspec.yaml 文件中添加以下依赖：

dependencies:
  ...
  from_to_time_picker: ^1.2.2

导入包

在 Dart 文件中导入该库：

import 'package:from_to_time_picker/from_to_time_picker.dart';

示例代码

默认模式

默认模式下使用 showDialog 方法展示时间选择器对话框：

showDialog(
  context: context,
  builder: (_) => FromToTimePicker(
    onTab: (from, to) {
      print('from $from to $to');
    },
  ),
);

自定义模式

自定义模式下可以设置颜色、文本等样式属性：

showDialog(
  context: context,
  builder: (_) => FromToTimePicker(
    onTab: (from, to) {
      print('from $from to $to');
    },
    dialogBackgroundColor: Color(0xFF121212),
    fromHeadlineColor: Colors.white,
    toHeadlineColor: Colors.white,
    upIconColor: Colors.white,
    downIconColor: Colors.white,
    timeBoxColor: Color(0xFF1E1E1E),
    timeHintColor: Colors.grey,
    timeTextColor: Colors.white,
    dividerColor: Color(0xFF121212),
    doneTextColor: Colors.white,
    dismissTextColor: Colors.white,
    defaultDayNightColor: Color(0xFF1E1E1E),
    defaultDayNightTextColor: Colors.white,
    colonColor: Colors.white,
    showHeaderBullet: true,
    headerText: 'Time available from 01:00 AM to 11:00 PM',
  ),
);

完整示例Demo

以下是完整的 Demo 代码，包含两个按钮分别用于展示浅色和深色主题的时间选择器：

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:from_to_time_picker/from_to_time_picker.dart';

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

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'From To Time Picker',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);
  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String startTime = 'from';
  String endTime = 'to';

  void showLightTimePicker() {
    showDialog(
      context: context,
      builder: (_) => FromToTimePicker(
        maxWidth: 600,
        onTab: (from, to) {
          if (kDebugMode) {
            print('from $from to $to');
          }
          setState(() {
            startTime = from.hour.toString().padLeft(2, '0');
            endTime = to.hour.toString().padLeft(2, '0');
          });
          Navigator.pop(context);
        },
      ),
    );
  }

  void showDarkTimePicker() {
    showDialog(
      context: context,
      builder: (_) => FromToTimePicker(
        onTab: (from, to) {
          if (kDebugMode) {
            print('from $from to $to');
          }
          setState(() {
            startTime = from.hour.toString().padLeft(2, '0');
            endTime = to.hour.toString().padLeft(2, '0');
          });
          Navigator.pop(context);
        },
        dialogBackgroundColor: const Color(0xFF121212),
        fromHeadlineColor: Colors.white,
        toHeadlineColor: Colors.white,
        upIconColor: Colors.white,
        downIconColor: Colors.white,
        timeBoxColor: const Color(0xFF1E1E1E),
        timeHintColor: Colors.grey,
        timeTextColor: Colors.white,
        dividerColor: const Color(0xFF1E1E1E),
        doneTextColor: Colors.white,
        dismissTextColor: Colors.white,
        defaultDayNightColor: const Color(0xFF1E1E1E),
        defaultDayNightTextColor: Colors.white,
        colonColor: Colors.white,
        showHeaderBullet: true,
        headerText: 'Time available from 01:00 AM to 11:00 PM',
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            const Text('Selected duration:'),
            const SizedBox(height: 10),
            Text('$startTime - $endTime'),
            const SizedBox(height: 40),
            ElevatedButton(
              onPressed: () => showLightTimePicker(),
              child: const Text('Show Light Time Picker'),
            ),
            const SizedBox(height: 20),
            ElevatedButton(
              onPressed: () => showDarkTimePicker(),
              child: const Text('Show Dark Time Picker'),
            ),
          ],
        ),
      ),
    );
  }
}

贡献者

我们欢迎并接受以下贡献：

• 改进文档
• 报告问题
• 修复漏洞

维护者

• Ahmed Elsarag