UIKit render loop pass order
In one cycle of the main run loop, what's the correct order of the passes UIKit runs to update the screen? (Assume there are views marked with setNeedsUpdateConstraints, setNeedsLayout, and setNeedsDisplay respectively.)
Pick one
UIKitShort answerBasics
What do setNeedsLayout and layoutIfNeeded each do in UIKit, and when should you call them?
#runloop
UIKitShort answerAdvanced
How do UIView and CALayer relate to each other, and why are their roles split?
#core-animation
UIKitShort answerExpert
In a UIKit list, you applied layer.cornerRadius plus masksToBounds plus shadow to cells w…
#core-animation
UIKitShort answerExpert
A view animates across the screen over 3 seconds with a UIView animation. Tapping it mid-…
#core-animation