resize superview after subviews change dynamically using autolayout

Question

I cant for the love of god the the hang of this resizing superview.

I have a UIView *superview with 4 UILabels. 2 function as header for t

Answer 1

This was made dramatically easier with the introduction of Stack Views in iOS 9. Use a stack view inside your view to contain all your content that resizes, and then simply call

view.setNeedsUpdateConstraints()
view.updateConstraintsIfNeeded()
view.setNeedsLayout()
view.layoutIfNeeded()

after changing your content. Then you can get your new size by calling

view.systemLayoutSizeFittingSize(UILayoutFittingCompressedSize)

if you ever need to calculate the exact size required for a view.