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Sealed world data in form of Flutter widgets (country, phone, currency pickers, etc.).

CodeFactor Codecov world_countries License: MIT Pub package

Example

This ISO-driven and fully tested package provides information about world countries, currencies, languages, etc. in form of compile-time constant sealed classes with a customizable pickers. This is Flutter wrapper on top of the sealed_countries package, that extends the data (for example different flag types in form of color fonts, Twemoji, Noto Color Emoji, OpenMoji) and provides ready-to use widgets for showing countries, languages, currencies lists and pickers.

Features #

This package provides the following ready-to-use widgets:

  • CountryPicker - A picker widget that displays a list of world countries.
  • PhoneCodePicker - A picker widget that displays a list of phone codes.
  • CurrencyPicker - A picker widget that displays a list of fiat currencies.
  • LanguagePicker - A picker widget that displays a list of natural languages.

Or you can just create your own pickers by extending BasicPicker.

Getting started #

To use this package, you will need Flutter version 3.10+. Add world_countries as a dependency in your pubspec.yaml file.

dependencies:
  world_countries: any

Usage #

You can use provided widgets directly, or just use their methods:

  • showInModalBottomSheet
  • showInSearch
  • showInDialog

For example:

import "dart:async" show unawaited;

import "package:flutter/material.dart";
import "package:world_countries/world_countries.dart";

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

  @override
  State<MainPage> createState() => _MainPageState();
}

class _MainPageState extends State<MainPage>
    with SingleTickerProviderStateMixin {
  WorldCountry? selectedCountry;

  late final CountryPicker countryPicker = CountryPicker(
    disabled: const [CountryAfg(), CountryAlb()],
    onSelect: onSelect,
  );

  void onSelect(WorldCountry newCountry) {
    print("New country selected: $newCountry");
    setState(() => selectedCountry = newCountry);
  }

  void onFabPressed({bool isLongPress = false}) {
    final picker = PhoneCodePicker.fromCountryPicker(countryPicker);
    unawaited(
      isLongPress
          ? picker.showInDialog(context)
          : picker.showInModalBottomSheet(context),
    );
  }

  void onAppBarSearchPressed() =>
      unawaited(countryPicker.showInSearch(context));

  @override
  Widget build(BuildContext context) => Scaffold(
        appBar: AppBar(
          actions: [
            IconButton(
              onPressed: onAppBarSearchPressed,
              icon: const Icon(Icons.search),
            ),
          ],
        ),
        body: Center(
          child: MaybeWidget(
            selectedCountry?.name.common,
            Text.new,
            orElse: const Text(
              "Please select country by pressing on the search icon",
            ),
          ),
        ),
        floatingActionButton: FloatingActionButton(
          onPressed: onFabPressed,
          child: const Icon(Icons.search),
        ),
      );
}

For more usage examples, please see the /example folder.

Additional information #

For more information on using this package, check out the API documentation. If you have any issues or suggestions for the package, please file them in the GitHub repository.

References, credits #

This package is licensed under the MIT license. See LICENSE for details. This package dependencies are under their respective licenses (that can be found in their respective folders under LICENSE and NOTICE files).

Attributions #

The color emoji flags fonts used in this package were obtained from open-source repositories of the original creators. The fonts are redistributed under the terms of the licenses offered by the original authors. The fonts sizes were reduced, by removing non-flag glyphs, to reduce the package size and to reduce the copyright footprint, since most of the country flags are in Public Domain. No modifications in graphic itself were made.

EXPERIMENTAL (Flutter WASM): To preview this package example, you can visit this web page using the Chrome browser (version 113 or higher) with the enable-webassembly-garbage-collection flag enabled. Please allow up to one minute for initial fonts and data caching.

Noto Emoji fonts #

The Noto Emoji font font comes from Noto Emoji emoji library. Noto Emoji fonts are under the SIL Open Font License, version 1.1.

OpenMoji fonts #

The OpenMoji font comes from OpenMoji project and redistributed under the CC-BY-SA-4.0 license terms.

Twemoji fonts #

The Twemoji font in COLR/CPAL layered format font comes from Twemoji-COLR project (Mozilla's COLR/CPAL version of Twemoji). Twemoji graphics made by Twitter and other contributors and is used and redistributed under the CC-BY-4.0 license terms offered by the Twemoji project.


FAQ #

I have problems rendering COLR emoji flags on Android.

Answer: Android OS supports COLRv1 fonts from version 13 on (API level 33).

My flags on web platform are grey (not colored)!

Answer: Please add useColorEmoji: true parameter to your engineInitializer.initializeEngine method (index.html).

I don't like default tiles UI in the pickers

Answer: Every picker has a itemBuilder parameter, providing access to specific list item properties, for example this is how you can show only a common country name in CountryPicker:

CountryPicker(
  itemBuilder: (picker) => Text(picker.item.name.common),
);
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Publisher

verified publishertsin.is

Sealed world data in form of Flutter widgets (country, phone, currency pickers, etc.).

Repository (GitHub)
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Topics

#picker #pickers #country-picker #country-selector #currency-picker

License

unknown (LICENSE)

Dependencies

flutter, sealed_countries

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