CameraEngineQRCode.swift

import UIKit
import CameraEngine

class ViewController: UIViewController {

    let cameraEngine = CameraEngine()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        self.cameraEngine.startSession()
        
        self.cameraEngine.metadataDetection = .QRCode
        self.cameraEngine.blockCompletionCodeDetection = { codeObject in
            let valueCode = codeObject.stringValue
        }
    }
}