Flutter电话号码处理插件phonenumbers_core的使用

phonenumbers_core 是一个用于解析和验证电话号码的简单库，它是 phonenumbers 插件的核心部分。以下是该插件的基本用法示例。

安装

在您的 pubspec.yaml 文件中添加依赖：

dependencies:
  phonenumbers_core: ^1.0.0

然后运行 flutter pub get 来安装依赖。

基本用法

解析电话号码

您可以使用 PhoneNumber.parse() 方法来解析电话号码。例如：

import 'package:phonenumbers_core/phonenumbers_core.dart';

void main() {
  try {
    PhoneNumber phoneNumber = PhoneNumber.parse('+1847327423');
    print('Parsed number: ${phoneNumber.number}');
  } catch (e) {
    print('Error parsing phone number: $e');
  }
}

验证电话号码

要验证电话号码的有效性，可以检查 isValid 属性：

import 'package:phonenumbers_core/phonenumbers_core.dart';

void main() {
  try {
    PhoneNumber phoneNumber = PhoneNumber.parse('+342342423');
    if (phoneNumber.isValid) {
      print('Phone number is valid.');
    } else {
      print('Phone number is not valid.');
    }
  } catch (e) {
    print('Error validating phone number: $e');
  }
}

通过ISO代码创建电话号码

您也可以通过国家的ISO代码（如 'FR'）来创建电话号码：

import 'package:phonenumbers_core/phonenumbers_core.dart';

void main() {
  try {
    PhoneNumber phoneNumber = PhoneNumber.isoCode('FR', '8263723');
    print('Created number with ISO code: ${phoneNumber.number}');
  } catch (e) {
    print('Error creating phone number with ISO code: $e');
  }
}

E.164格式化

E.164是国际电话号码的标准格式。您可以使用 formattedNumber 属性来获取格式化后的电话号码：

import 'package:phonenumbers_core/phonenumbers_core.dart';

void main() {
  try {
    PhoneNumber phoneNumber = PhoneNumber.parse('+342342423');
    String formattedNumber = phoneNumber.formattedNumber;
    print('Formatted number: $formattedNumber');
  } catch (e) {
    print('Error formatting phone number: $e');
  }
}

完整示例

以下是一个完整的Flutter应用示例，展示了如何使用 phonenumbers_core 插件进行电话号码的解析、验证、创建和格式化：

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

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'PhoneNumber Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

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

class _MyHomePageState extends State<MyHomePage> {
  String resultText = '';

  void _parsePhoneNumber() {
    try {
      PhoneNumber phoneNumber = PhoneNumber.parse('+1847327423');
      setState(() {
        resultText = 'Parsed number: ${phoneNumber.number}';
      });
    } catch (e) {
      setState(() {
        resultText = 'Error parsing phone number: $e';
      });
    }
  }

  void _validatePhoneNumber() {
    try {
      PhoneNumber phoneNumber = PhoneNumber.parse('+342342423');
      bool isValid = phoneNumber.isValid;
      setState(() {
        resultText = 'Phone number is ${isValid ? "valid" : "not valid"}.';
      });
    } catch (e) {
      setState(() {
        resultText = 'Error validating phone number: $e';
      });
    }
  }

  void _createWithIsoCode() {
    try {
      PhoneNumber phoneNumber = PhoneNumber.isoCode('FR', '8263723');
      setState(() {
        resultText = 'Created number with ISO code: ${phoneNumber.number}';
      });
    } catch (e) {
      setState(() {
        resultText = 'Error creating phone number with ISO code: $e';
      });
    }
  }

  void _formatPhoneNumber() {
    try {
      PhoneNumber phoneNumber = PhoneNumber.parse('+342342423');
      String formattedNumber = phoneNumber.formattedNumber;
      setState(() {
        resultText = 'Formatted number: $formattedNumber';
      });
    } catch (e) {
      setState(() {
        resultText = 'Error formatting phone number: $e';
      });
    }
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('PhoneNumber Demo'),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            ElevatedButton(
              onPressed: _parsePhoneNumber,
              child: Text('Parse Phone Number'),
            ),
            ElevatedButton(
              onPressed: _validatePhoneNumber,
              child: Text('Validate Phone Number'),
            ),
            ElevatedButton(
              onPressed: _createWithIsoCode,
              child: Text('Create with ISO Code'),
            ),
            ElevatedButton(
              onPressed: _formatPhoneNumber,
              child: Text('Format Phone Number'),
            ),
            SizedBox(height: 20),
            Text(resultText),
          ],
        ),
      ),
    );
  }
}