fix XCode config, add icons

app/ios/Examples/Example_SPM/NFCPassportReaderApp/Model/PassportUtils.swift

@@ -0,0 +1,77 @@
+//
+//  PassportUtils.swift
+//  NFCPassportReaderApp
+//
+//  Created by Andy Qua on 30/06/2019.
+//  Copyright © 2019 Andy Qua. All rights reserved.
+//
+
+import UIKit
+import NFCPassportReader
+
+class PassportUtils {
+    
+    func getMRZKey(passportNumber: String, dateOfBirth: String, dateOfExpiry: String ) -> String {
+        
+        // Pad fields if necessary
+        let pptNr = pad( passportNumber, fieldLength:9)
+        let dob = pad( dateOfBirth, fieldLength:6)
+        let exp = pad( dateOfExpiry, fieldLength:6)
+        
+        // Calculate checksums
+        let passportNrChksum = calcCheckSum(pptNr)
+        let dateOfBirthChksum = calcCheckSum(dob)
+        let expiryDateChksum = calcCheckSum(exp)
+
+        let mrzKey = "\(pptNr)\(passportNrChksum)\(dob)\(dateOfBirthChksum)\(exp)\(expiryDateChksum)"
+        
+        return mrzKey
+    }
+    
+    func pad( _ value : String, fieldLength:Int ) -> String {
+        // Pad out field lengths with < if they are too short
+        let paddedValue = (value + String(repeating: "<", count: fieldLength)).prefix(fieldLength)
+        return String(paddedValue)
+    }
+    
+    func calcCheckSum( _ checkString : String ) -> Int {
+        let characterDict  = ["0" : "0", "1" : "1", "2" : "2", "3" : "3", "4" : "4", "5" : "5", "6" : "6", "7" : "7", "8" : "8", "9" : "9", "<" : "0", " " : "0", "A" : "10", "B" : "11", "C" : "12", "D" : "13", "E" : "14", "F" : "15", "G" : "16", "H" : "17", "I" : "18", "J" : "19", "K" : "20", "L" : "21", "M" : "22", "N" : "23", "O" : "24", "P" : "25", "Q" : "26", "R" : "27", "S" : "28","T" : "29", "U" : "30", "V" : "31", "W" : "32", "X" : "33", "Y" : "34", "Z" : "35"]
+        
+        var sum = 0
+        var m = 0
+        let multipliers : [Int] = [7, 3, 1]
+        for c in checkString {
+            guard let lookup = characterDict["\(c)"],
+                let number = Int(lookup) else { return 0 }
+            let product = number * multipliers[m]
+            sum += product
+            m = (m+1) % 3
+        }
+        
+        return (sum % 10)
+    }
+    
+    static  func shareLogs() {
+        do {
+            let arr = Log.logData
+            let data = try JSONSerialization.data(withJSONObject: arr, options: .prettyPrinted)
+            
+            let temporaryURL = URL(fileURLWithPath: NSTemporaryDirectory() + "passportreader.log")
+            try data.write(to: temporaryURL)
+            
+            let av = UIActivityViewController(activityItems: [temporaryURL], applicationActivities: nil)
+            let keyWindow = UIApplication.shared.connectedScenes
+                .filter({$0.activationState == .foregroundActive})
+                .map({$0 as? UIWindowScene})
+                .compactMap({$0})
+                .first?.windows
+                .filter({$0.isKeyWindow}).first
+            
+            keyWindow?.rootViewController?.present(av, animated: true, completion: nil)
+        } catch {
+            print( "ERROR - \(error)" )
+        }
+    }
+
+}
+

app/ios/Examples/Example_SPM/NFCPassportReaderApp/Model/SettingsStore.swift

@@ -0,0 +1,107 @@
+//
+//  SettingsStore.swift
+//  NFCPassportReaderApp
+//
+//  Created by Andy Qua on 10/02/2021.
+//  Copyright © 2021 Andy Qua. All rights reserved.
+//
+
+import SwiftUI
+import Combine
+import NFCPassportReader
+
+final class SettingsStore: ObservableObject {
+
+    private enum Keys {
+        static let captureLog = "captureLog"
+        static let logLevel = "logLevel"
+        static let useNewVerification = "useNewVerification"
+        static let savePassportOnScan = "savePassportOnScan"
+        static let passportNumber = "passportNumber"
+        static let dateOfBirth = "dateOfBirth"
+        static let dateOfExpiry = "dateOfExpiry"
+        
+        static let allVals = [captureLog, logLevel, useNewVerification, passportNumber, dateOfBirth, dateOfExpiry]
+    }
+    
+    private let cancellable: Cancellable
+    private let defaults: UserDefaults
+    
+    let objectWillChange = PassthroughSubject<Void, Never>()
+    
+    init(defaults: UserDefaults = .standard) {
+        self.defaults = defaults
+        
+
+        defaults.register(defaults: [
+            Keys.captureLog: true,
+            Keys.logLevel: 1,
+            Keys.useNewVerification: true,
+            Keys.savePassportOnScan: false,
+            Keys.passportNumber: "",
+            Keys.dateOfBirth: Date().timeIntervalSince1970,
+            Keys.dateOfExpiry: Date().timeIntervalSince1970,
+        ])
+        
+        cancellable = NotificationCenter.default
+            .publisher(for: UserDefaults.didChangeNotification)
+            .map { _ in () }
+            .subscribe(objectWillChange)
+    }
+    
+    func reset() {
+        if let bundleID = Bundle.main.bundleIdentifier {
+            UserDefaults.standard.removePersistentDomain(forName: bundleID)
+        }
+    }
+    
+    var shouldCaptureLogs: Bool {
+        set { defaults.set(newValue, forKey: Keys.captureLog) }
+        get { defaults.bool(forKey: Keys.captureLog) }
+    }
+    
+    var logLevel: LogLevel {
+        get {
+            return LogLevel(rawValue:defaults.integer(forKey: Keys.logLevel)) ?? .info
+        }
+        set {
+            defaults.set(newValue.rawValue, forKey: Keys.logLevel)
+        }
+    }
+    
+    var useNewVerificationMethod: Bool {
+        set { defaults.set(newValue, forKey: Keys.useNewVerification) }
+        get { defaults.bool(forKey: Keys.useNewVerification) }
+    }
+    
+    var savePassportOnScan: Bool {
+        set { defaults.set(newValue, forKey: Keys.savePassportOnScan) }
+        get { defaults.bool(forKey: Keys.savePassportOnScan) }
+    }
+    
+    var passportNumber: String {
+        set { defaults.set(newValue, forKey: Keys.passportNumber) }
+        get { defaults.string(forKey: Keys.passportNumber) ?? "" }
+    }
+    
+    var dateOfBirth: Date {
+        set {
+            defaults.set(newValue.timeIntervalSince1970, forKey: Keys.dateOfBirth)
+        }
+        get {
+            let d = Date(timeIntervalSince1970: defaults.double(forKey: Keys.dateOfBirth))
+            return d
+        }
+    }
+    
+    var dateOfExpiry: Date {
+        set {
+            defaults.set(newValue.timeIntervalSince1970, forKey: Keys.dateOfExpiry) }
+        get {
+            let d = Date(timeIntervalSince1970: defaults.double(forKey: Keys.dateOfExpiry))
+            return d
+        }
+    }
+    
+    @Published var passport : NFCPassportModel?
+}