Flutter号码验证插件nuban_validator的使用

Flutter号码验证插件nuban_validator的使用

Validator for NUBAN银行号码。

开始使用

使用方法如下：

final NubanValidator nubanValidator = const NubanValidator();
final bool isValid = nubanValidator.isValid(
  bankCode: "044",       // 银行代码
  accountNumber: "0000014579",  // 账号
);

示例代码

以下是一个完整的示例代码，展示了如何使用nuban_validator插件进行NUBAN银行号码验证。

import 'package:flutter/material.dart';
import 'package:nuban_validator/nuban_validator.dart';  // 导入nuban_validator包

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

class MyApp extends StatelessWidget {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('NUBAN验证示例'),
        ),
        body: Center(
          child: ValidateNubanWidget(),
        ),
      ),
    );
  }
}

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

class _ValidateNubanWidgetState extends State<ValidateNubanWidget> {
  String _bankCode = '';  // 银行代码输入框内容
  String _accountNumber = '';  // 账号输入框内容
  bool _isValid = false;  // 验证结果

  void _validateNuban() {
    final NubanValidator nubanValidator = const NubanValidator();
    setState(() {
      _isValid = nubanValidator.isValid(
        bankCode: _bankCode,       // 获取银行代码
        accountNumber: _accountNumber,  // 获取账号
      );
    });
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return Column(
      mainAxisAlignment: MainAxisAlignment.center,
      children: [
        TextField(
          decoration: InputDecoration(labelText: '银行代码'),
          onChanged: (value) => _bankCode = value,
        ),
        TextField(
          decoration: InputDecoration(labelText: '账号'),
          onChanged: (value) => _accountNumber = value,
        ),
        SizedBox(height: 20),
        ElevatedButton(
          onPressed: _validateNuban,  // 执行验证
          child: Text('验证'),
        ),
        SizedBox(height: 20),
        Text(_isValid ? '有效' : '无效'),  // 显示验证结果
      ],
    );
  }
}