self.imageView.image = MSCode.generateQRCode(text: "message")

self.imageView.image = MSCode.generate128Barcode(text: "message")

// MARK: UINavigationControllerDelegate, UIImagePickerControllerDelegate

func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {

    if let selectedImage = info[UIImagePickerControllerOriginalImage] as? UIImage {

        let messages: [String] = MSCode.detectQRCodes(image: selectedImage)
        if messages.count > 0 {
            self.textView.text = messages.first
        } else {
            self.textView.text = "[Not Found QR Code in Photo]"
        }
    }

    dismiss(animated: true, completion: nil)
}

import UIKit
import AVFoundation
import MSCodeScanner

final class QRCodeDetectForCameraViewController: UIViewController {

    private var scanner: MSCodeScanner!

    override func viewDidLoad() {

        super.viewDidLoad()

        self.navigationItem.title = "Detect QR code from Camera"
        self.view.backgroundColor = .groupTableViewBackground

        self.scanner = MSCodeScanner(metadataObjectTypes: [AVMetadataObjectTypeQRCode], preview: self.view)
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        MSCodeScanner.requestCameraPermission { (success) in
            if success {
                self.scanner.scan(resultOutputs: { (outputs) in
                    print(outputs)
                })
            }
        }
    }
}

import UIKit
import AVFoundation
import MSCodeScanner

final class BarcodeDetectForCameraViewController: UIViewController {

    private var scanner: MSCodeScanner!

    override func viewDidLoad() {

        super.viewDidLoad()

        self.navigationItem.title = "Detect Barcode from Camera"
        self.view.backgroundColor = .groupTableViewBackground

        self.scanner = MSCodeScanner(metadataObjectTypes: [AVMetadataObjectTypeEAN8Code, AVMetadataObjectTypeEAN13Code, AVMetadataObjectTypeCode128Code], preview: self.view)
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)

        MSCodeScanner.requestCameraPermission { (success) in
            if success {
                self.scanner.scan(resultOutputs: { (outputs) in

                    print(outputs)

                    if let isbn = outputs.first?.convartISBN() {
                        self.scanner.stop()
                        isbn.searchAamazon()
                    }
                })
            }
        }
    }
}