Setting the frame for the preview layer results in incorrect frame settings

[danipralea]

Hello and what an awesome work you've done with this library. I would like to thank you for all your hard work.

I integrated it into a Swift project and when I'm trying to set the frame of the preview layer, it results in an inconsistent frame:

I have this code:

var _previewLayer: AVCaptureVideoPreviewLayer = PBJVision.sharedInstance().previewLayer
@IBOutlet weak var previewView: UIView! // this is the white view in the back

let bounds = self.previewView.layer.bounds
_previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
_previewLayer.bounds = bounds
_previewLayer.position = CGPointMake(CGRectGetMidX(bounds), CGRectGetMidY(bounds))
previewView.layer.addSublayer(_previewLayer)

[imagine]

Especially since you're using Swift, you may want to switch to NextLevel