Flutter波斯语日期时间选择器插件persian_datetimepickers的使用

persian_datetimepickers 是一个用于 Flutter 的插件，专门用于选择波斯（伊朗）日期和时间的控件。这个插件提供了符合波斯日历（Jalali Calendar）的日期选择器和时间选择器，适用于需要支持波斯日历的应用。

使用方法

1. 添加依赖

   首先，在你的 pubspec.yaml 文件中添加 persian_datetimepickers 依赖：

   dependencies:
     flutter:
       sdk: flutter
     persian_datetimepickers: ^1.1.0
   

   然后运行 flutter pub get 来安装依赖。

2. 导入包

   在你的 Dart 文件中导入 persian_datetimepickers 包：

   import 'package:persian_datetimepickers/persian_datetimepickers.dart';
   

3. 使用日期选择器

   你可以使用 pDtp.showDatePicker 来显示波斯日期选择器。以下是一个简单的示例：

   ElevatedButton(
     onPressed: () async {
       final selectedDate = await pDtp.showDatePicker(
         context: context,
         initialDate: DateTime.now(),
         firstDate: DateTime(1300),
         lastDate: DateTime(1500),
       );
       if (selectedDate != null) {
         print("Selected Date: $selectedDate");
       }
     },
     child: Text("Select Date"),
   );
   

4. 使用时间选择器

   你可以使用 pDtp.showTimePicker 来显示波斯时间选择器。以下是一个简单的示例：

   ElevatedButton(
     onPressed: () async {
       final selectedTime = await pDtp.showTimePicker(
         context: context,
         initialTime: TimeOfDay.now(),
       );
       if (selectedTime != null) {
         print("Selected Time: $selectedTime");
       }
     },
     child: Text("Select Time"),
   );
   

5. 自定义日期格式

   你可以根据需要自定义日期和时间的显示格式。persian_datetimepickers 使用 Jalali 类来处理波斯日期，你可以使用 Jalali 类的格式化方法来显示日期。

   例如：

   Jalali now = Jalali.now();
   String formattedDate = "${now.year}/${now.month}/${now.day}";
   print("Today's Date: $formattedDate");
   

完整示例

以下是一个完整的示例，展示如何使用 persian_datetimepickers 插件来选择日期和时间：

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

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: PersianDateTimePickerDemo(),
    );
  }
}

class PersianDateTimePickerDemo extends StatefulWidget {
  [@override](/user/override)
  _PersianDateTimePickerDemoState createState() => _PersianDateTimePickerDemoState();
}

class _PersianDateTimePickerDemoState extends State<PersianDateTimePickerDemo> {
  DateTime? _selectedDate;
  TimeOfDay? _selectedTime;

  Future<void> _selectDate(BuildContext context) async {
    final selectedDate = await pDtp.showDatePicker(
      context: context,
      initialDate: DateTime.now(),
      firstDate: DateTime(1300),
      lastDate: DateTime(1500),
    );
    if (selectedDate != null) {
      setState(() {
        _selectedDate = selectedDate;
      });
    }
  }

  Future<void> _selectTime(BuildContext context) async {
    final selectedTime = await pDtp.showTimePicker(
      context: context,
      initialTime: TimeOfDay.now(),
    );
    if (selectedTime != null) {
      setState(() {
        _selectedTime = selectedTime;
      });
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Persian DateTime Picker Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: () => _selectDate(context),
              child: Text("Select Date"),
            ),
            Text(_selectedDate != null ? "Selected Date: $_selectedDate" : "No Date Selected"),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: () => _selectTime(context),
              child: Text("Select Time"),
            ),
            Text(_selectedTime != null ? "Selected Time: $_selectedTime" : "No Time Selected"),
          ],
        ),
      ),
    );
  }
}