Largely, we don't hand off PSDs to engineers- I spec out every page/state for them individually including measurements, tap targets, colors and icons/assets. It leaves less room for error.
Just out of curiosity, do you do the same thing when handing off designs to web developers? I've seen many designers annotate PSDs for iOS, but never for the web.
Largely, we don't hand off PSDs to engineers- I spec out every page/state for them individually including measurements, tap targets, colors and icons/assets. It leaves less room for error.