CODEWITHSUNDEEP
swiftmacoscameraprivacymacos-mojave
mirkokiefer
mirkokiefer

Reputation: 3527

Request camera permissions in macOS Mojave

Initializing an AVCaptureDeviceInput for a camera fails in macOS Mojave if the user has not granted permissions. When trying to initialize, the system automatically presents the permission request dialog. There seems to be no way though to get notified of the user response.

I'm looking for an analog way to get notified as with requesting audio permissions in:

The Protecting the User's Privacy guide does not outline any other methods for camera access.

Upvotes: 4

Views: 2781

Answers (2)

SteveS
SteveS

Reputation: 514

Apple docs for presenting the dialog and capturing the response are found at: Requesting Authorization for Media Capture on MacOS

It does require asynchronous handling of the dialog, so perhaps a combination of checking the authorization status with the approach presented in the docs would be helpful.

Steve

Upvotes: 0

mirkokiefer
mirkokiefer

Reputation: 3527

Found that the solution is actually analog to iOS by checking authorizationStatus(for:) on AVCaptureDevice before initializing an AVCaptureDeviceInput from it.

And using requestAccess(for:completionHandler:) to request the permission if needed.

An example for getting camera access:

let status = AVCaptureDevice.authorizationStatus(for: .video)

if status == .authorized {
  // connect to video device
  let devices = AVCaptureDevice.devices(for: .video)
  ...
  return
}

if status == .denied {
  // show error
  return
}

AVCaptureDevice.requestAccess(for: .video) { (accessGranted) in
  // handle result
}

Upvotes: 1

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