I am getting this new feature in Xcode 9. I am attaching the snapshot for the same. What does the safe area mean, in Xcode 9.
Safe Area
Apple says is the portion of your view that is unobscured by bars and other content
. Source: Apple - safeAreaLayoutGuide
My explanation:
It is the guide for iPhone X for you to avoid the top notch and the bottom part for the swipe gesture that replaced the home button