World Country Data, flags, currency and more - an open source android library for getting country flags and other country attributes

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An Android library that contains ‘all’ the flags of the countries of the world This is to be used for android projects where the developer is interested in getting the flag of a particular country for any reason.

System requirement

Known Limitations

This library has been known to crash apps if you set shrinkResources true in your build settings. See step 2.3 below on how to deal with this!

This library will also result to a larger APK size of your app! It however gives you the advantage that it does not require any network calls

Usage

  1. Add JitPack in your repository build file build.gradle (Project appname)
allprojects {
    repositories {
        //...
        maven { url 'https://jitpack.io' }
    }
}

2.1 Add the dependency in your build.gradle (Module: app)

dependencies {
    //...
    implementation 'com.github.blongho:worldCountryData:$version'
}

Replace $version with vXXX for the most stable version you want to use see releases

Proguard rules

2.2 Add this in your proguard-rules.pro

-keep

class com

.blongho.** {
    *;
}
-keep

interface com

.blongho.**
#
If you
keep the line number information , uncomment this to
# hide the original source file name.
# -renamesourcefileattribute SourceFile
-keeppackagenames com.blongho.country_data
-keepclassmembers

class com

.blongho.country_data.* {
    public *;
}
-keep

class com

.blongho.country_data.R$ * {
    *;
}

2.3 In your build.gradle (Module: app)

android {
    ...

    buildTypes {
        release {
            minifyEnabled true
            //shrinkResources false // if you set this to true, the application will crash
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }

    }

    defaultConfig {
        vectorDrawables.useSupportLibrary = true
    }

    compileOptions {
        sourceCompatibility 1.8
        targetCompatibility 1.8
    }
    ...
}

  1. Build your project (and make sure gradle has successfully synced) Buid >> Clean Project, Build >> Rebuild Project

  2. Load all the flags of the world by calling. Do this once in the application context.

World.init(getApplicationContext()); // Initializes the libray and loads all data

This inititializes the data. All countries are read, and their flags loaded

  1. Get the flag of a country(dynamically)
// Demonstrating with Sweden
//The attribute is case-insensitive "se == SE == sE == Se"

// use alpha2
final int flag=World.getFlagOf("se"); // use "se" or "sE" or "SE" or "Se"

// use alpha3
final int flag=World.getFlagOf("swe");

// Use country name
final int flag=World.getFlagOf("sweden");

// use country name
final int flag=World.getFlagOf(752);

// Set the image of an imageView
final ImageView swedishFlag=(ImageView)findViewById(R.id.flagImageView);
        swedishFlag.setImageResource(flag);

/*
The value of flag is either
- the flag of the country if it is loaded in the library
OR
- a demo flag of the globe (This provides a fall-back and help your app not crash due to nullPointerException)
*/


<ImageView android:id="@+id/flagImageId" android:layout_width="@dimens/imageWidth"
        android:layout_height="@dimens/imageHeight"
        android:src="@drawable/se" /> <!-- Sets this image to the Swedish flag -->

// Set the image of an imageView
final ImageView swedishFlag=(ImageView)findViewById(R.id.flagImageView);
        swedishFlag.setImageResource(R.drawable.se);
  1. Get a Country with attributes like "id":4,"name":"Afghanistan","alpha2":"af","alpha3":"afg", flag:imageResource"
final Country afghanistan=World.getCountryFrom("af|afg|afghanistan|4|kabul");
// Log.d(TAG, afghanistan.toString());
  1. Get a list of all the countries with their identifiers
final List<Country> countries=World.getAllCountries();
// This list cannot be modified but you can get its contents
  1. Get list of countries from a continent
final List<Country> africanCounties=World.getCountriesFrom(Continent.AFRICA);
///final List<Country> filteredCountries = World.getCountriesFrom(Continent.[AFRICA|ASIA|EUROPE|OCEANA|SOUTH_AMERICA|NORTH_AMERICA])
// Continent is an enum that has all the continents of the world

NEW

  1. Get the list of languages spoken in a given country
final List<String> languages=World.getLanguagesFrom("af|afg|afghanistan|4|kabul");
//or 
final Country afghanistan=World.getCountryFrom("af|afg|afghanistan|4|kabul");
final List<String> languages=afghanistan.getLanguages();
// Returns comma separated list of country languages e.g [Swedish (sv-SE), Northern Sami (se), Southern Sami (sma), Finnish (fi-SE)]

Link to javadoc –> javadoc link

All the steps above are demonstrated in this project –> world country flag demo

Demonstrating dynamic retrieval of country flags      
  :–:   Live retrieval of Country data

Get this sample app in the playstore Country Data Demo at playstore

Data sources for the project ### All country flags Most of the flags came from [flagpedia.net](http://flagpedia.net/download). This site does not contain all the countries in the world so some where downloaded from [wikipedia](https://www.wikipedia.org/) after quering the country name ### Countries and their iso alpha values All country names were download from [Geonames](https://www.geonames.org/countries/) using a Python project written by [Bernard Longho aka @blongho](https://github.com/blongho/). Check it out [Countries data by blongho](https://github.com/blongho/countries) ### Getting different dimensions of the flags Some guys from Egypt made some awesome [App icon generator](https://appicon.co/#image-sets) which generates android drawables as well as iOS images(if you want) in different dimensions. It is super fast and can do batch processing of images.

Contribution guidelines

Please feel free to add more flags or modify any thing that would make this library more useful. The various ways of contribution are specified in CONTRIBUTING.md

Sponsors

JetBrains

Contact

Feel free to contact me to discuss anything related to development in particular and life in general.