Converting Country Codes to Country Names

Question

I need to convert a list of country codes to a country array. Here is what I have done so far.

- (void)viewDidLoad {     [super viewDidLoad];     // Do any additional setup after loading the view, typically from a nib.     pickerViewArray = [[NSMutableArray alloc] init]; //pickerViewArray is of type NSArray;     pickerViewArray =[NSLocale ISOCountryCodes]; } 

Answer 1

You can get an identifier for a country code with localeIdentifierFromComponents: and then get its displayName.

So to create an array with country names you can do:

NSMutableArray *countries = [NSMutableArray arrayWithCapacity: [[NSLocale ISOCountryCodes] count]];  for (NSString *countryCode in [NSLocale ISOCountryCodes]) {     NSString *identifier = [NSLocale localeIdentifierFromComponents: [NSDictionary dictionaryWithObject: countryCode forKey: NSLocaleCountryCode]];     NSString *country = [[NSLocale currentLocale] displayNameForKey: NSLocaleIdentifier value: identifier];     [countries addObject: country]; } 

To sort it alphabetically you can add

NSArray *sortedCountries = [countries sortedArrayUsingSelector:@selector(localizedCaseInsensitiveCompare:)]; 

Note that the sorted array is immutable.

Answer 2

This will work in iOS8 :

NSArray *countryCodes = [NSLocale ISOCountryCodes]; NSMutableArray *tmp = [NSMutableArray arrayWithCapacity:[countryCodes count]]; for (NSString *countryCode in countryCodes) {     NSString *country = [[NSLocale systemLocale] displayNameForKey:NSLocaleCountryCode value:countryCode];     [tmp addObject: country];   }