4 ms·
Not a system gesture, but installed for sheets on a per-app basis.
Not a system gesture, but installed for sheets on a per-app basis.
It's installed on navigation controllers when you push something on them, which is 95+% of the time you'd need it anyways. iOS distinguishes between going "back" in the navigation hierarchy and dismissing a modal, e.g. "Cancel".
It is exactly a system gesture.