CameraViewControllerHidden.swift - init

CameraViewControllerHidden.swift

// ...
do {
    deviceInput = try AVCaptureDeviceInput(device: captureDevice)
    guard deviceInput != nil else {
        print("error: can't get deviceInput")
        return
    }
    
    if self.session.canAddInput(deviceInput){
        self.session.addInput(deviceInput)
    }
    
    stillImageOutput = AVCapturePhotoOutput()
    
    if session.canAddOutput(stillImageOutput) {
        session.addOutput(self.stillImageOutput)
    }
    
    // we can also attach videoDataOutput from the previous example to get all the video frames
    // but for now image capturing is enough

    // and whoopsie, we forgot the preview :(
    
    session.startRunning()
}
// ...