CameraViewController.swift - photoOutput

CameraViewController.swift

func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
    //process single image
    guard let imageData = photo.fileDataRepresentation()
        else { return }
    
    let captureImageView = UIImageView(frame: CGRect(x: 50, y: 50, width: 100, height: 100))
    let image = UIImage(data: imageData)
    captureImageView.image = image
    
    //show the captured image
    let centerView = UIView(frame: CGRect(x: UIScreen.main.bounds.size.width / 2 - 100,
                                          y: UIScreen.main.bounds.size.height / 2 - 100,
                                          width: 200,
                                          height: 200))
    centerView.backgroundColor = UIColor.red
    centerView.addSubview(captureImageView)
    
    self.view.addSubview(centerView)
    
}