How do I get a list of countries in Swift ios?

Question

I\'ve already seen two similar questions to mine, but the answers for those questions do not work for me. I have an old project with a list of countries manually typed out insid

Answer 1

Swift You can easily retrieve countries name and their flags emoji.

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        var countriesData = [(name: String, flag: String)]()

        for code in NSLocale.isoCountryCodes  {

            let flag = String.emojiFlag(for: code)
            let id = NSLocale.localeIdentifier(fromComponents: [NSLocale.Key.countryCode.rawValue: code])

            if let name = NSLocale(localeIdentifier: "en_UK").displayName(forKey: NSLocale.Key.identifier, value: id) {
                countriesData.append((name: name, flag: flag!))
            }else{
                 //"Country not found for code: \(code)"
            }
        }

        print(countriesData)
    }
}


extension String {

    static func emojiFlag(for countryCode: String) -> String! {
        func isLowercaseASCIIScalar(_ scalar: Unicode.Scalar) -> Bool {
            return scalar.value >= 0x61 && scalar.value <= 0x7A
        }

        func regionalIndicatorSymbol(for scalar: Unicode.Scalar) -> Unicode.Scalar {
            precondition(isLowercaseASCIIScalar(scalar))

            // 0x1F1E6 marks the start of the Regional Indicator Symbol range and corresponds to 'A'
            // 0x61 marks the start of the lowercase ASCII alphabet: 'a'
            return Unicode.Scalar(scalar.value + (0x1F1E6 - 0x61))!
        }

        let lowercasedCode = countryCode.lowercased()
        guard lowercasedCode.count == 2 else { return nil }
        guard lowercasedCode.unicodeScalars.reduce(true, { accum, scalar in accum && isLowercaseASCIIScalar(scalar) }) else { return nil }

        let indicatorSymbols = lowercasedCode.unicodeScalars.map({ regionalIndicatorSymbol(for: $0) })
        return String(indicatorSymbols.map({ Character($0) }))
    }
}

Result: