QR code: Show label overlay with info on how to generate the QR code
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@ -21,6 +21,20 @@ class QRScanViewController: UIViewController {
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self.title = "Scan QR code"
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self.navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: .cancel, target: self, action: #selector(cancelTapped))
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let tipLabel = UILabel()
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tipLabel.text = "Tip: Generate with `qrencode -t ansiutf8 < tunnel.conf`"
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tipLabel.adjustsFontSizeToFitWidth = true
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tipLabel.textColor = UIColor.lightGray
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tipLabel.textAlignment = .center
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view.addSubview(tipLabel)
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tipLabel.translatesAutoresizingMaskIntoConstraints = false
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NSLayoutConstraint.activate([
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tipLabel.leftAnchor.constraint(equalTo: view.safeAreaLayoutGuide.leftAnchor),
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tipLabel.rightAnchor.constraint(equalTo: view.safeAreaLayoutGuide.rightAnchor),
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tipLabel.bottomAnchor.constraint(equalTo: view.safeAreaLayoutGuide.bottomAnchor, constant: -32),
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])
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guard let videoCaptureDevice = AVCaptureDevice.default(for: .video),
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let videoInput = try? AVCaptureDeviceInput(device: videoCaptureDevice),
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let captureSession = captureSession,
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