FaceID_BiometryManager.swift

BiometryManager.swift

import LocalAuthentication

enum BiometryType {
    case none, typeTouchID, typeFaceID
}

class BiometryManager {
    var biometryType: BiometryType {
        let context = LAContext()
        var error = NSError?
	guard context.canEvaluatePolicy(.deviceOwnerAuthenticationWithBiometrics, error: &error) else {
            print(error?.localizedDescription ?? "")
            return .none
        }
        
        if #available(iOS 11, *) {
            switch context.biometryType {
            case .none:
                return .none
            case .typeTouchID:
                return .typeTouchID
            case .typeFaceID:
                return .typeFaceID
            }
        } else {
            return .typeTouchID
        }
    }
}