Flutter时间选择器插件flutter_spinner_time_picker的使用

flutter_spinner_time_picker 是一个用于在Flutter应用程序中轻松选择时间的自定义时间选择器插件。本文将介绍如何安装和使用这个插件，并提供一个完整的示例。

预览

深色模式

浅色模式

安装

在您的 pubspec.yaml 文件中添加以下依赖：

dependencies:
  flutter_spinner_time_picker: [latest]

然后运行 flutter pub get 来安装该插件。

使用方法

首先，导入该插件：

import 'package:flutter_spinner_time_picker/flutter_spinner_time_picker.dart';

如何使用

以下是基本用法示例：

TimeOfDay selectedTime = TimeOfDay.now();

void _showTimePicker() async {
  final pickedTime = await showSpinnerTimePicker(
    context,
    initTime: selectedTime,
  );

  if (pickedTime != null) {
    setState(() {
      selectedTime = pickedTime;
    });
  }
}

自定义选项

该插件提供了许多自定义选项，例如标题、背景颜色、前景颜色等：

showSpinnerTimePicker(
  context,
  title: 'Custom Time Picker',
  backgroundColor: Colors.grey[100],
  foregroundColor: Colors.black,
  titleStyle: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
  buttonStyle: ButtonStyle(
    backgroundColor: MaterialStateProperty.all(Colors.blue),
  ),
  buttonTextStyle: TextStyle(fontSize: 16, color: Colors.white),
  barrierDismissible: true,
  // ... other customization options
);

完整示例

以下是一个简单的完整示例，展示了如何使用自定义时间选择器小部件：

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

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

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

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      title: 'Time Picker Example',
      darkTheme: ThemeData(
        primarySwatch: Colors.deepPurple,
        useMaterial3: true,
        brightness: Brightness.dark,
      ),
      theme: ThemeData(
        primarySwatch: Colors.deepPurple,
        useMaterial3: true,
      ),
      home: const MyHomePage(),
    );
  }
}

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

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  TimeOfDay selectedTime = TimeOfDay.now();

  void _showTimePicker() async {
    final pickedTime = await showSpinnerTimePicker(
      context,
      initTime: selectedTime,
      is24HourFormat: false,
    );

    if (pickedTime != null) {
      setState(() {
        selectedTime = pickedTime;
      });
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Time Picker Example'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            const Text(
              'Selected Time:',
              style: TextStyle(fontSize: 18),
            ),
            const SizedBox(height: 10),
            Text(
              '${selectedTime.hour}:${selectedTime.minute.toString().padLeft(2, '0')}',
              style: const TextStyle(fontSize: 30, fontWeight: FontWeight.bold),
            ),
            const SizedBox(height: 20),
            FilledButton(
              onPressed: _showTimePicker,
              child: const Text('Pick a Time'),
            ),
          ],
        ),
      ),
    );
  }
}