INNER CODE UNIT · Swift

viewWillAppear

wu9007/qrcode_scanner · ios/Classes/SwiftQrscanPlugin.swift:296

  override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    updateVideoOrientation()
    overlay.start()
    sessionQueue.async { [weak self] in
      self?.session.startRunning()
    }
  }

  override func viewWillDisappear(_ animated: Bool) {
    overlay.stop()
    setTorch(false)
    sessionQueue.async { [weak self] in
      self?.session.stopRunning()
    }
    super.viewWillDisappear(animated)
  }

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