NSLocale localeIdentifier example ios

localeIdentifier

Returns the identifier for the receiver.

- (NSString *)localeIdentifier

Return Value of [NSLocale localeIdentifier]

The identifier for the receiver. This may not be the same string that the locale was created with, since NSLocale may canonicalize it.

Discussion

Equivalent to sending objectForKey: with key NSLocaleIdentifier.

Example of [NSLocale localeIdentifier]

 NSArray *arr = [NSLocale preferredLanguages];
for (NSString *lan in arr) {
    NSLog(@"%@: %@ %@",lan, [NSLocale canonicalLanguageIdentifierFromString:lan], [[[NSLocale alloc] initWithLocaleIdentifier:lan] displayNameForKey:NSLocaleIdentifier value:lan]);
}

Example of [NSLocale localeIdentifier]

NSLocale *locale = [NSLocale currentLocale];

NSString *language = [locale displayNameForKey:NSLocaleIdentifier 
                                         value:[locale localeIdentifier]];

Example of [NSLocale localeIdentifier]

- (NSLocale *) findLocaleByCurrencyCode:(NSString *)_currencyCode
{
        NSArray *locales = [NSLocale availableLocaleIdentifiers];
        NSLocale *locale = nil;
        NSString *localeId;

        for (localeId in locales) {
                locale = [[[NSLocale alloc] initWithLocaleIdentifier:localeId] autorelease];
                NSString *code = [locale objectForKey:NSLocaleCurrencyCode];
                if ([code isEqualToString:_currencyCode])
                        break;
                else
                        locale = nil;
        }

        /* For some codes that locale cannot be found, init it different way. */
        if (locale == nil) {
                NSDictionary *components = [NSDictionary dictionaryWithObject:_currencyCode
                                                                       forKey:NSLocaleCurrencyCode];

                localeId = [NSLocale localeIdentifierFromComponents:components];
                locale = [[NSLocale alloc] initWithLocaleIdentifier:localeId];
        }
        return locale;
}