Swift Turn a Country Code into a Emoji Flag via Unicode

Swift turn a country code into a emoji flag via unicode

Here's a general formula for turning a two-letter country code into its emoji flag:

func flag(country:String) -> String {
    let base = 127397
    var usv = String.UnicodeScalarView()
    for i in country.utf16 {
        usv.append(UnicodeScalar(base + Int(i)))
    }
    return String(usv)
}

let s = flag("DE")

EDIT Ooops, no need to pass through the nested String.UnicodeScalarView struct. It turns out that String has an append method for precisely this purpose. So:

func flag(country:String) -> String { 
    let base : UInt32 = 127397
    var s = ""
    for v in country.unicodeScalars {
        s.append(UnicodeScalar(base + v.value))
    }
    return s
}

EDIT Oooops again, in Swift 3 they took away the ability to append a UnicodeScalar to a String, and they made the UnicodeScalar initializer failable (Xcode 8 seed 6), so now it looks like this:

func flag(country:String) -> String {
    let base : UInt32 = 127397
    var s = ""
    for v in country.unicodeScalars {
        s.unicodeScalars.append(UnicodeScalar(base + v.value)!)
    }
    return String(s)
}

Get emoji flag from country code in Ruby

Use tr to translate alphabetic characters to their regional indicator symbols:

'US'.tr('A-Z', "\u{1F1E6}-\u{1F1FF}")
#=> "br>

Of course, you can also use the Unicode characters directly:

'US'.tr('A-Z', '-')
#=> "br>

Android Get Country Emoji Flag Using Locale

I was looking for that too but I don't think it's possible yet.

Have a look here:
http://developer.android.com/reference/java/util/Locale.html

No mentioning about flags.

_

Alternately you can check the answer here:

Android Countries list with flags and availability of getting iso mobile codes

that might help you.

How to convert two-letter country codes to flag emojis?

Solution:

public static string IsoCountryCodeToFlagEmoji(this string country)
{
    return string.Concat(country.ToUpper().Select(x => char.ConvertFromUtf32(x + 0x1F1A5)));
}

string gb = "gb".IsoCountryCodeToFlagEmoji(); // br>string fr = "fr".IsoCountryCodeToFlagEmoji(); // br>

Get emoji flag by country code

This code snippet worked for me. Just replace "US" with whichever valid country code (based on the Regional Indicator Symbol Let­ters) you like and it will create a String flag containing the flag emoji for that country. (Reference)

int flagOffset = 0x1F1E6;
int asciiOffset = 0x41;

String country = "US";

int firstChar = Character.codePointAt(country, 0) - asciiOffset + flagOffset;
int secondChar = Character.codePointAt(country, 1) - asciiOffset + flagOffset;

String flag = new String(Character.toChars(firstChar))
            + new String(Character.toChars(secondChar));

This answer helped

using regional indicator symbols for languages?

No, that would not be appropriate. Language codes and region codes are wildly different things – any correspondence between them is purely incidental and they don’t always match in obvious ways. For example, the country of Greece has code GR, but the Greek language has code EL.

Regional Indicator sequences as defined by the Unicode Standard only apply to region codes (as their name implies), in particular regions with a two-letter Unicode region subtag, which is based on ISO 3166-1 alpha-2. See Annex B of Unicode Technical Standard #51 for more information. Esperanto has no region code because it is not a region.

EO is currently an unassigned code – it does not belong to any region and thus may be assigned to a new entity at any moment. If you display “” as the Esperanto flag in your font, then anything written in your font will be compromised when a new country or territory is given the code EO in the future because you’ve been using the wrong flag for that code all the time.

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