My colleague developer and I cannot find how to implement double-tap or pinch-zoom in the Preview screen on iOS when 'from camera' image import option is used. We are using standard camera to take a picture. Once the round button is clicked, the next screen displays the taken picture and two options "Retake" and "Use Photo". I would like to allow the user to double-tap or pinch-zoom on this screen. Current default behavior does not affect picture zoom in any way.
The screen looks like this, but in the latest iOS7 UI.
Please advise if this is possible and what specifically do I need to do to enable zoom in this screen? Thanks.
