List of Countries using NSLocaleCountryCode

Question

I want to be able to make the app change depending on the users location. Im using the code below:

NSLocale *locale = [NSLocale autoupdatingCurrentLocale];
    NSString *countryCode = [locale objectForKey: NSLocaleCountryCode];
    NSString *countryName = [locale displayNameForKey: NSLocaleCountryCode value: countryCode];
    NSLog(@"countryName %@", countryName);

which works great, but I want to know how the countryName's will be displayed, so I can set up switch case's, which is hard if you dont know how exactly each country is spelt: USA, United States, United States of America, etc. Is there a list of countryCode from Apple, I cant find one.

Also is there a way to make sure the result is in English?

Wini

Answer 1

Apple uses the ISO-3166 standard.

Partnership

-1: Link-only answers are poor answers because the link can be broken (as this currently is). You should include the relevant information within your answer and a link to the original page/info as an additional resource or attribution. – Grams

In Great Britain [[NSLocale currentLocale] objectForKey: NSLocaleCountryCode]; returns 'GB' which is not in the ISO-3166 list (it's not a country!) – Deeprooted

In Swift, NSLocale.ISOCountryCodes() – Brendabrendan

Answer 2

"ISO standard ISO-3166" is accurate in most cases, but try selecting "Europe" as a region in iOS settings. You will get a return value of "150". Why "150"? Seems like a region code from here: http://en.wikipedia.org/wiki/UN_M.49. Or from here: http://site.icu-project.org/design/t/territory-region-apis

Stroll

Answer 3

NSLocale gets its data from CFLocale which in turn gets its data from the ICU - International Components for Unicode (Apple keep copies here). The file /icuSources/common/uloc.cpp contains almost all the information we usually see returned.

However, /cldrFiles/supplementalData.xml may be the primary source. This file comes from the CLDR - Unicode Common Locale Data Repository.

Trickster