[iOS设备支持的国际和语言列表] #country #language

countries_languages.m

+ (NSArray<NSString *> *)allSupportedCountries {
    NSArray<NSString *> *codes = NSLocale.ISOCountryCodes;
    NSMutableArray<NSString *> *names = [NSMutableArray arrayWithCapacity:codes.count];
    for (NSString *code in codes ) {
        NSString *name = [code uppercaseString];
        [names addObject:name];
        NSLog(@"country >> code:%@ - name:%@", code, name);
    }
    return [names copy];
}

+ (NSArray<NSString *> *)allSupportedLanguages {
    NSArray<NSString *> *codes = NSLocale.ISOLanguageCodes;
    NSMutableArray<NSString *> *names = [NSMutableArray arrayWithCapacity:codes.count];
    for (NSString *code in codes) {
        NSString *localeID = code;
        NSDictionary *components = [NSLocale componentsFromLocaleIdentifier:localeID];
        NSString *name = components[NSLocaleLanguageCode];
        NSString *script = components[NSLocaleScriptCode];
        if (name.length == 0) {
            name = kDefaultLanguage;
        } else if ([name isEqualToString:@"zh"] && [script isEqualToString:@"Hant"]) {
            name = [NSString stringWithFormat:@"%@-%@",name, script];
        }
        [names addObject:name];
        NSLog(@"language >> code:%@ - name:%@", code, name);
    }
    return [names copy];
}