问题1:The safe area layout guide is the space available to our view, excluding rounded corners and notches.
答案:All important content should lie inside the safe area, or you risk it being obscured.
问题2:layoutMarginsGuide
and safeAreaLayoutGuide
are the same thing.
答案:Not quite: layoutMarginsGuide
is inside the safeAreaLayoutGuide
, so it will be slightly smaller.
问题3: Activating multiple constraints at once is faster than modifying isActive for each one.
答案:Apple explicitly recommends using activate() for this purpose.
问题4: Content hugging priority controls how likely Auto Layout is to make a view smaller than its intrinsic content size.
答案:Content hugging priority controls how likely Auto Layout is to make a view larger than its intrinsic content size.