Tutorial by Examples

import AVFoundation class QRScannerViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate { func viewDidLoad() { self.initCaptureSession() } private func initCaptureSession() { let captureDevice = AVCaptureDevice .defa...

Prior to iOS 7 when you want to scan a QR code, we might need to rely on third party frameworks or libraries like zBar or zXing. But Apple introduced AVCaptureMetaDataOutput from iOS 7 for reading barcodes. To read QR code using AVFoundation we need to setup/create AVCaptureSession and use captureO...