india_pincode_finder 1.0.0

Find detailed Indian address information (state, district, taluka) from a 6-digit PIN code. Offline, no API calls. Ideal for logistics, KYC, e-commerce, and mapping.

example/lib/main.dart

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

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  await IndiaPincodeFinder.init();
  runApp(const MyApp());
}

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

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'Pincode Finder',
      home: PincodeLookupPage(),
    );
  }
}

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

  @override
  State<PincodeLookupPage> createState() => _PincodeLookupPageState();
}

class _PincodeLookupPageState extends State<PincodeLookupPage> {
  final _controller = TextEditingController();
  PincodeData? _result;
  bool _searched = false;

  void _lookup() {
    final pin = int.tryParse(_controller.text.trim());
    setState(() {
      _searched = true;
      _result = pin == null ? null : IndiaPincodeFinder.pinToAddress(pin);
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('India Pincode Finder')),
      body: Padding(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.stretch,
          children: [
            TextField(
              controller: _controller,
              keyboardType: TextInputType.number,
              decoration: const InputDecoration(
                labelText: 'Enter 6-digit PIN code',
                border: OutlineInputBorder(),
              ),
              onSubmitted: (_) => _lookup(),
            ),
            const SizedBox(height: 12),
            FilledButton(onPressed: _lookup, child: const Text('Look up')),
            const SizedBox(height: 24),
            if (_searched && _result == null)
              const Text('No address found for that PIN code.'),
            if (_result != null) ...[
              Text('State: ${_result!.state}'),
              Text('District: ${_result!.district}'),
              Text('Taluka/Block: ${_result!.block}'),
            ],
          ],
        ),
      ),
    );
  }
}