A Flutter package that provides a country picker widget for selecting countries along with important resources a country has.

Features

• when user start typing the country name in the textfield it will suggest country name based on user input.
• user can choose the country from the suggestions.
• this will return a Country object which includes
  1. Country code,
  2. Country name,
  3. Currency
  4. Phone code,
  5. Continent. so you can use any data you require.

Getting started

Just install the package and start using

Usage

-Can be useful in a registration form where you need to get user country. -user no need to input their phone code ore currency code manually, rather you can provide those on based on their country selection.

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  Country? country;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          children: [
            SizedBox(
              width: 400,
              child: CountrySelectionField(
                onCountrySelect: (val) {
                  setState(() {
                    country = val;
                  });
                },
                inputDecoration:
                    const InputDecoration(prefixIcon: Icon(Icons.map)),
              ),
            ),
            const SizedBox(height: 20),
            SizedBox(
              width: 400,
              child: Card(
                child: Padding(
                  padding: const EdgeInsets.all(8.0),
                  child: Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      const Text("Selected Country Details"),
                      Text("Country Code: ${country?.countryCode}"),
                      Text("Country Name: ${country?.countryName}"),
                      Text("Phone Code: ${country?.phoneNumberPrefix}"),
                      Text("Continent: ${country?.continentName}"),
                      Text("Currency: ${country?.currencyCode}"),
                    ],
                  ),
                ),
              ),
            )
          ],
        ),
      ),
    );
  }
}

or you can use a button to show modalBottomsheet to choose country.

 ElevatedButton(
              onPressed: () async {
                await CountryPicker.selectCountry(
                  context,
                ).then((value) => {
                      if (value != null)
                        {
                          setState(() {
                            country = value;
                          })
                        }
                    });
              },
              child: const Text("Select Country"),
            ),

Configure ModalBottom Sheet using this: double? height, ShapeBorder shape = const RoundedRectangleBorder(borderRadius: BorderRadius.zero), Color? backgroundColor, double contentpadding = 10, bool showCloseButton = false,

Additional information

Class Country in country_model file.

class Country {
  String? countryCode;
  String? countryName;
  String? currencyCode;
  String? phoneNumberPrefix;
  String? continentName;

  Country({
    this.countryCode,
    this.countryName,
    this.currencyCode,
    this.phoneNumberPrefix,
    this.continentName,
  });

  factory Country.fromMap(Map<String, dynamic> map) {
    return Country(
      countryCode: map['countryCode'],
      countryName: map['countryName'],
      currencyCode: map['currencyCode'],
      phoneNumberPrefix: map['phoneNumberPrefix'],
      continentName: map['continentName'],
    );
  }
}

List of Countries A list of Map<String, String> which contains data for all countries in country_data file.

List<Map<String, String>> countryList = [
  {
    "countryCode": "AD",
    "countryName": "Andorra",
    "currencyCode": "EUR",
    "phoneNumberPrefix": "+376",
    "continentName": "Europe"
  },
  {
    "countryCode": "AE",
    "countryName": "United Arab Emirates",
    "currencyCode": "AED",
    "phoneNumberPrefix": "+971",
    "continentName": "Asia"
  },
  {
    "countryCode": "AF",
    "countryName": "Afghanistan",
    "currencyCode": "AFN",
    "phoneNumberPrefix": "+93",
    "continentName": "Asia"
  },
  ... all countries data
]

Class CountrySelectionField this take two args

1. final Function(Country?)? onCountrySelect; this will return Country object based on user selection.
2. final InputDecoration inputDecoration; this will update the how the textfield will look like.

Size of Textfield: The textfield does not have any specific size, so wrap with a Sizedbox in order to give your prefered size.

 body: SizedBox(
        width: 100,
        child: CountrySelectionField(),
      ),

Please send me an email "scripts.ismail@gmail" if you face any issue. or create a issue on github, i will try my best to respond. This is just an initial release, and gradually we can improve it a lot. If you are developer dont hasitate to make any upgrade in this package in githup rep.