Swift turn a country code into a emoji flag via unicode

Question

I\'m looking for a quick way to turn something like:

let germany = \"DE\" 

into

let flag = \"\\u{1f1e9}\\u{1f1ea}\"
         


        

Answer 1

If anyone looking for solution in ObjectiveC here is convenient category:

@interface NSLocale (RREmoji)

+ (NSString *)emojiFlagForISOCountryCode:(NSString *)countryCode;

@end


@implementation NSLocale (RREmoji)


+ (NSString *)emojiFlagForISOCountryCode:(NSString *)countryCode {
    NSAssert(countryCode.length == 2, @"Expecting ISO country code");

    int base = 127462 -65;

    wchar_t bytes[2] = {
        base +[countryCode characterAtIndex:0],
        base +[countryCode characterAtIndex:1]
    };

    return [[NSString alloc] initWithBytes:bytes
                                    length:countryCode.length *sizeof(wchar_t)
                                  encoding:NSUTF32LittleEndianStringEncoding];
}


@end

test:

for ( NSString *countryCode in [NSLocale ISOCountryCodes] ) {
    NSLog(@"%@ - %@", [NSLocale emojiFlagForISOCountryCode:countryCode], countryCode);
}

output: