country_pickers 1.2.1

Countries, codes, flags and several way of picking them at your service...one widget away...

example/lib/main.dart

import 'package:country_pickers/country.dart';
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:country_pickers/country_pickers.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Country Pickers Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      routes: {
        '/': (context) => DemoPage(),
      },
    );
  }
}

class DemoPage extends StatefulWidget {
  @override
  _HomePageState createState() => _HomePageState();
}

class _HomePageState extends State<DemoPage> {
  Country _selectedDialogCountry =
      CountryPickerUtils.getCountryByPhoneCode('90');

  Country _selectedFilteredDialogCountry =
      CountryPickerUtils.getCountryByPhoneCode('90');

  Country _selectedCupertinoCountry =
      CountryPickerUtils.getCountryByIsoCode('tr');

  Country _selectedFilteredCupertinoCountry =
      CountryPickerUtils.getCountryByIsoCode('DE');

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Country Pickers Demo'),
      ),
      body: ListView(
        padding: EdgeInsets.all(8.0),
        children: <Widget>[
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text('CountryPickerDropdown'),
                ListTile(title: _buildCountryPickerDropdown()),
              ],
            ),
          ),
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text('CountryPickerDropdown (filtered)'),
                ListTile(title: _buildCountryPickerDropdown(filtered: true)),
              ],
            ),
          ),
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text('CountryPickerDropdown (sorted by isoCode)'),
                ListTile(
                    title: _buildCountryPickerDropdown(sortedByIsoCode: true)),
              ],
            ),
          ),
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text("CountryPickerDropdown (has priorityList['GB,'CN'])"),
                ListTile(
                    title: _buildCountryPickerDropdown(hasPriorityList: true)),
              ],
            ),
          ),
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text("CountryPickerDialog (has priorityList['TR,'US'])"),
                ListTile(
                  onTap: _openCountryPickerDialog,
                  title: _buildDialogItem(_selectedDialogCountry),
                ),
              ],
            ),
          ),
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text('CountryPickerDialog (filtered)'),
                ListTile(
                  onTap: _openFilteredCountryPickerDialog,
                  title: _buildDialogItem(_selectedFilteredDialogCountry),
                ),
              ],
            ),
          ),
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text("CountryPickerCupertino (has priorityList['TR,'US'])"),
                ListTile(
                  title: _buildCupertinoSelectedItem(_selectedCupertinoCountry),
                  onTap: _openCupertinoCountryPicker,
                ),
              ],
            ),
          ),
          Card(
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                Text('CountryPickerCupertino (filtered)'),
                ListTile(
                  title: _buildCupertinoSelectedItem(
                      _selectedFilteredCupertinoCountry),
                  onTap: _openFilteredCupertinoCountryPicker,
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  _buildCountryPickerDropdown(
          {bool filtered = false,
          bool sortedByIsoCode = false,
          bool hasPriorityList = false}) =>
      Row(
        children: <Widget>[
          CountryPickerDropdown(
            initialValue: 'AR',
            itemBuilder: _buildDropdownItem,
            itemFilter: filtered
                ? (c) => ['AR', 'DE', 'GB', 'CN'].contains(c.isoCode)
                : null,
            priorityList: hasPriorityList
                ? [
                    CountryPickerUtils.getCountryByIsoCode('GB'),
                    CountryPickerUtils.getCountryByIsoCode('CN'),
                  ]
                : null,
            sortComparator: sortedByIsoCode
                ? (Country a, Country b) => a.isoCode.compareTo(b.isoCode)
                : null,
            onValuePicked: (Country country) {
              print("${country.name}");
            },
          ),
          SizedBox(
            width: 8.0,
          ),
          Expanded(
            child: TextField(
              decoration: InputDecoration(labelText: "Phone"),
            ),
          )
        ],
      );

  Widget _buildDropdownItem(Country country) => Container(
        child: Row(
          children: <Widget>[
            CountryPickerUtils.getDefaultFlagImage(country),
            SizedBox(
              width: 8.0,
            ),
            Text("+${country.phoneCode}(${country.isoCode})"),
          ],
        ),
      );

  Widget _buildDialogItem(Country country) => Row(
        children: <Widget>[
          CountryPickerUtils.getDefaultFlagImage(country),
          SizedBox(width: 8.0),
          Text("+${country.phoneCode}"),
          SizedBox(width: 8.0),
          Flexible(child: Text(country.name))
        ],
      );

  void _openCountryPickerDialog() => showDialog(
        context: context,
        builder: (context) => Theme(
          data: Theme.of(context).copyWith(primaryColor: Colors.pink),
          child: CountryPickerDialog(
            titlePadding: EdgeInsets.all(8.0),
            searchCursorColor: Colors.pinkAccent,
            searchInputDecoration: InputDecoration(hintText: 'Search...'),
            isSearchable: true,
            title: Text('Select your phone code'),
            onValuePicked: (Country country) =>
                setState(() => _selectedDialogCountry = country),
            itemBuilder: _buildDialogItem,
            priorityList: [
              CountryPickerUtils.getCountryByIsoCode('TR'),
              CountryPickerUtils.getCountryByIsoCode('US'),
            ],
          ),
        ),
      );

  void _openFilteredCountryPickerDialog() => showDialog(
        context: context,
        builder: (context) => Theme(
            data: Theme.of(context).copyWith(primaryColor: Colors.pink),
            child: CountryPickerDialog(
                titlePadding: EdgeInsets.all(8.0),
                searchCursorColor: Colors.pinkAccent,
                searchInputDecoration: InputDecoration(hintText: 'Search...'),
                isSearchable: true,
                title: Text('Select your phone code'),
                onValuePicked: (Country country) =>
                    setState(() => _selectedFilteredDialogCountry = country),
                itemFilter: (c) => ['AR', 'DE', 'GB', 'CN'].contains(c.isoCode),
                itemBuilder: _buildDialogItem)),
      );

  void _openCupertinoCountryPicker() => showCupertinoModalPopup<void>(
      context: context,
      builder: (BuildContext context) {
        return CountryPickerCupertino(
          backgroundColor: Colors.black,
          itemBuilder: _buildCupertinoItem,
          pickerSheetHeight: 300.0,
          pickerItemHeight: 75,
          initialCountry: _selectedCupertinoCountry,
          onValuePicked: (Country country) =>
              setState(() => _selectedCupertinoCountry = country),
          priorityList: [
            CountryPickerUtils.getCountryByIsoCode('TR'),
            CountryPickerUtils.getCountryByIsoCode('US'),
          ],
        );
      });

  void _openFilteredCupertinoCountryPicker() => showCupertinoModalPopup<void>(
      context: context,
      builder: (BuildContext context) {
        return CountryPickerCupertino(
          backgroundColor: Colors.white,
          pickerSheetHeight: 200.0,
          initialCountry: _selectedFilteredCupertinoCountry,
          onValuePicked: (Country country) =>
              setState(() => _selectedFilteredCupertinoCountry = country),
          itemFilter: (c) => ['AR', 'DE', 'GB', 'CN'].contains(c.isoCode),
        );
      });

  Widget _buildCupertinoSelectedItem(Country country) {
    return Row(
      children: <Widget>[
        CountryPickerUtils.getDefaultFlagImage(country),
        SizedBox(width: 8.0),
        Text("+${country.phoneCode}"),
        SizedBox(width: 8.0),
        Flexible(child: Text(country.name))
      ],
    );
  }

  Widget _buildCupertinoItem(Country country) {
    return DefaultTextStyle(
      style: const TextStyle(
        color: CupertinoColors.white,
        fontSize: 16.0,
      ),
      child: Row(
        children: <Widget>[
          SizedBox(width: 8.0),
          CountryPickerUtils.getDefaultFlagImage(country),
          SizedBox(width: 8.0),
          Text("+${country.phoneCode}"),
          SizedBox(width: 8.0),
          Flexible(child: Text(country.name))
        ],
      ),
    );
  }
}