import 'package:flutter/material.dart'; import 'package:grostore/constant/country_code.dart'; class CountrySearchDialog extends StatefulWidget { @override _CountrySearchDialogState createState() => _CountrySearchDialogState(); } class _CountrySearchDialogState extends State { List country = CountryCode().get(); List filteredCountry = []; @override void initState() { filteredCountry = country; super.initState(); } void filtercountry(String query) { query = query.toLowerCase(); setState(() { filteredCountry = country .where((product) => product.name.toLowerCase().contains(query)) .toList(); }); } @override Widget build(BuildContext context) { return AlertDialog( title: Text('Search Product'), content: Column( mainAxisSize: MainAxisSize.min, children: [ TextField( onChanged: filtercountry, decoration: InputDecoration( labelText: 'Search', ), ), SizedBox(height: 16.0), Expanded( child: ListView.builder( itemCount: filteredCountry.length, itemBuilder: (context, index) { final country = filteredCountry[index]; return ListTile( title: Text(country.name), onTap: () { Navigator.of(context).pop(country); }, ); }, ), ), ], ), ); } }