I cannot access the camera in a UIViewController - ios

Question

I really hope I'm not making a duplicate - but I read a ton different camera-questions inhere and implemented all of their answers, with the same result: Nothing happens!
No errors, the app doesn't crash, no problems whatsoever - only there is no sign of the camera, which should be activated! My goal is to get it activated in viewDidAppear or viewDidLoad, but I also tried testing it by connecting the code to a button - same result; nothing. Both on my own device and on the simulator: nothing!
What am i getting wrong in this simple code?? - Or which setting do I need to change? I have tried playing with the "data protection": nothing!
Code:
class CreateNewPerson: UIViewController, UITextFieldDelegate, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
func viewDidAppear () {
let imagePicker = UIImagePickerController()
imagePicker.delegate = self
imagePicker.sourceType = .camera
present(imagePicker, animated: true, completion: nil)
}
private func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]!) {
PersonPhoto.image = info[UIImagePickerControllerOriginalImage] as? UIImage
dismiss(animated: true, completion: nil)
}
Hope someone can help me!
Photo of info.plist (where I can't seem to find the camera ussage description) - maybe I'm an idiot...:
Thanks!

Answer 1

You need to add a Camara usage description into your info.plist file and ask permission for your app to access the camera.
Add this to your plist file:
Privacy - Camera Usage Description
With some text like
"We need your permission to access the device camera"
To request permission:
AVCaptureDevice.requestAccess(for: AVMediaType.video) { granted in
if granted {
// show the image picker
} else {
// show an error
}
}
It is usually best to check if you need permission or what state the permissions are in, so I would do it like this...
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
checkCameraPermissions()
}
private func checkCameraPermissions() {
let status = AVCaptureDevice.authorizationStatus(for: .video)
switch status {
case .authorized:
self.presentPicker()
case .notDetermined:
self.requestPermissions()
case .denied:
// user denied access
self.permissionDenied()
}
}
private func requestAccess() {
AVCaptureDevice.requestAccess(for: AVMediaType.video) { granted in
if !granted {
// show an error
}
// call it again in to recheck now that permissions have changed.
checkCameraPermissions
}
}
private func presentPicker() {
// permissions are all set, continue as planned.
}
private func permissionDenied() {
// show an alert and link to app settings to turn on
// usually I would show a view which explains they have denied permission to the camera so this functionality isn't available until they manually change the setting in the app settings.
}

Answer 2

You have to add CreateNewPerson in UINavigationController after that run your code.
Don't forget to add Privacy - Camera Usage Description in info.plist