UIImagePickerController how to do animated switch from rear to front camera?

Question

I have been using custom overlay for UIImagePickerController controller, and everything is working fine. I have added button to switch between front and rear camera

Answer 1

Here's the Swift code for the accepted answer in case someone needs it:

UIView.transitionWithView(imagePickerController.view!, duration: 1.0, options: [.AllowAnimatedContent, .TransitionFlipFromLeft], animations: {() -> Void in
            imagePickerController.cameraDevice = .Rear
            }, completion: nil)

Thanks Pablo!