Smart Phone Number Field #

A Flutter package that provides an phone number input field with automatic country code and number field lenth detection based on the user's timezone. Features

• Smart Country Detection: Automatically suggests the correct country code based on user's timezone
• Dynamic Phone Number Validation: Sets minimum and maximum phone number length limits based on the selected country
• Country Code Picker Integration: Easy-to-use country selector with flag display
• Real-time Validation: Validates phone numbers according to country-specific rules
• Support for 221+ Countries: Comprehensive database of phone number formats worldwide

Getting Started

Add this package to your pubspec.yaml:

dependencies:
  smart_phone_numb: ^0.2.3

Then run:

flutter pub get

Usage

Import the package and use the SmartPhoneNumberField widget:

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

class MyForm extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Padding(
        padding: EdgeInsets.all(16.0),
        child: Form(
          child: SmartPhoneNumberField(),
        ),
      ),
    );
  }
}

How It Works

1. Automatic Detection: When the widget loads, it detects the user's timezone
2. Country Mapping: Maps the timezone to the most likely country code
3. Smart Validation: Automatically sets the correct phone number length limits
4. User Override: Users can manually select a different country if needed

Example

The widget will:

• Show a country flag and code picker
• Display a text field for phone number input
• Validate the phone number length based on the selected country
• Provide real-time feedback for invalid inputs

Supported Countries

The package includes phone number validation rules for 221+ countries, covering:

• Minimum and maximum phone number lengths
• Country-specific formatting requirements
• Major international dialing codes

Dependencies

This package uses:

• country_code_picker for the country selection UI
• flutter_timezone for automatic timezone detection