Swift how can I get UIScrollView dynamic height

Question

I googled but have not found working solution, I have UIScrollView adding inside UITextField and UIButtons with NSLayoutConstraint, I don't use storyboard and setting everything programmatically

my issue is: can't calculate dynamic height of UIScrollView.contentSize because I am using AutoLayout also tryed UIScrollView.layoutIfNeeded() but no luck

can any one guide or advice me how to to get it work?

Here's a complete example - you can even run it in a Playground page: https://stackoverflow.com/a/44933358/6257435 — DonMag, Nov 30 '17 at 13:49
thanks @DonMag your answer inspired me to right direction just added last object bottom constraint and it worked — Hattori Hanzō, Nov 30 '17 at 14:19

score 4 · Accepted Answer · answered Nov 30 '17 at 14:29

4

@DonMag's comment was right solution to my problem stackoverflow.com/a/44933358/6257435

if you have in UIScrollView objects with AutoLayout don't forget add .bottomAnchor to last item

answered Nov 30 '17 at 14:29

Hattori Hanzō

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score 0 · Answer 2 · answered Nov 30 '17 at 13:18

Sum of scrollview subview’s height and constraint constants is the final height. Even after constraints layed out, it’s always summ. So just calculate it, and you height. But why do you need calculating scrollview’s content height? If it’s adjusting wrong, set your subviews height constraints, top and bottom contraints to scrollview, and content size will be calculated automatically

Swift how can I get UIScrollView dynamic height

2 Answers2