How to get all available emojis in an array in Swift

This SO seems to provide the answer

https://stackoverflow.com/questions/26170876/how-to-list-almost-all-emojis-in-swift-for-ios-8-without-using-any-form-of-loo

for i in 0x1F601...0x1F64F {
    let c = String(UnicodeScalar(i) ?? "-")
    print(c)
}

You should go beyond 1F64F,

https://stackoverflow.com/questions/30757193/find-out-if-character-in-string-is-emoji

0x1F600...0x1F64F, // Emoticons

8400...8447: // Combining Diacritical Marks for Symbols

9100...9300, // Misc items

0x2600...0x26FF, // Misc symbols

0x2700...0x27BF, // Dingbats

0xFE00...0xFE0F, // Variation Selectors

0x1F018...0x1F270, // Various asian characters

0x1F300...0x1F5FF, // Misc Symbols and Pictographs

0x1F680...0x1F6FF, // Transport and Map

0x1F1E6...0x1F1FF, // Regional country flags

0x1F900...0x1F9FF, // Supplemental Symbols and Pictographs

65024...65039, // Variation selector

However, you get some undefined (marked as ? at the end of ranges)

See here to skip them

https://stackoverflow.com/questions/41318999/is-there-a-way-to-know-if-an-emoji-is-supported-in-ios

Note, while searching, found this interesting link to generate emoji flags based on country code

www.timekl.com/blog/2017/08/31/swift-tricks-emoji-flags/

That ends up with the following code

func isEmoji(_ value: Int) -> Bool {
    switch value {
    case 0x1F600...0x1F64F, // Emoticons
    0x1F300...0x1F5FF, // Misc Symbols and Pictographs
    0x1F680...0x1F6FF, // Transport and Map
    0x1F1E6...0x1F1FF, // Regional country flags
    0x2600...0x26FF,   // Misc symbols 9728 - 9983
    0x2700...0x27BF,   // Dingbats
    0xFE00...0xFE0F,   // Variation Selectors
    0x1F900...0x1F9FF,  // Supplemental Symbols and Pictographs 129280 - 129535
    0x1F018...0x1F270, // Various asian characters           127000...127600
    65024...65039, // Variation selector
    9100...9300, // Misc items
    8400...8447: // Combining Diacritical Marks for Symbols
        return true
       
    default: return false
    }
}

extension Character {
    private static let refUnicodeSize: CGFloat = 8
    private static let refUnicodePng =
        Character("\u{1fff}").png(ofSize: Character.refUnicodeSize)
   
    func png(ofSize fontSize: CGFloat) -> Data? {
        let attributes = [NSAttributedString.Key.font:
            UIFont.systemFont(ofSize: fontSize)]
        let charStr = "\(self)" as NSString
        let size = charStr.size(withAttributes: attributes)
       
        UIGraphicsBeginImageContext(size)
        charStr.draw(at: CGPoint(x: 0,y :0), withAttributes: attributes)
       
        var png:Data? = nil
        if let charImage = UIGraphicsGetImageFromCurrentImageContext() {
            png = charImage.pngData()
        }
       
        UIGraphicsEndImageContext()
        return png
    }
   
    func unicodeAvailable() -> Bool {
        if let refUnicodePng = Character.refUnicodePng,
            let myPng = self.png(ofSize: Character.refUnicodeSize) {
            return refUnicodePng != myPng
        }
        return false
    }
}

for i in 8400...0x1F9FF where isEmoji(i) {
    if let scalar = UnicodeScalar(i) {
        let unicode = Character(scalar)
        if unicode.unicodeAvailable() {
            print(i, String(scalar))
            count += 1
        } else {
            notAvail += 1
            print(i)
        }
    } else {
        notCounted += 1
    }
}

print("Count", count, "Not counted", notCounted, "Not Avail", notAvail)

Without prejudice to Claude31’s response, I want to point out that determining if an arbitrary Unicode character is an emoji is really hard. This issue was discussed extensively over on Swift Forums as part of the creation of SE-0221 Character Properties, and ultimately the

isEmoji

Share and Enjoy
—
Quinn “The Eskimo!”
Apple Developer Relations, Developer Technical Support, Core OS/Hardware

let myEmail = "eskimo" + "1" + "@apple.com"

Why doesn't Apple provide access to all of the emojis and their categories/search terms? It seems like that should be available here in Q4 2021.