AVCaptureVideoPreviewLayer appears to be escaping parent bounds

Question

I'm having an issue fitting a AVCaptureVideoPreviewLayer inside its parents bounds.

Here is the contextual code:

    capturePreview = AVCaptureVideoPreviewLayer(session: captureSession)
    guard let capturePreview = capturePreview else { return }

When I have

   capturePreview.frame = cameraView.bounds
   cameraView.layer.addSublayer(capturePreview)

The following occurs:

And when I have

capturePreview.bounds = cameraView.layer.bounds
cameraView.layer.addSublayer(capturePreview)

this happens

I'm trying to get the preview layer to fit inside the black box in the next picture

From what I have seen in the documentation, I'm not sure where I am going wrong. Thanks for any help. For reference I will add the constraints I gave in storyboard.

Answer 1

Have you tried using something like:

capturePreview.frame = cameraView.bounds
cameraView.layer.addSublayer(capturePreview)
cameraView.clipsToBounds = true