Choosing maximum of two widths for auto layout

Question

I have a UIImageView and two two UILabel as its child. Now using auto layouts I want that UIImageView's width should be equal to the maximum of these two labels so that both of these are visible completely. Is there a way to define this constraint?

can you give some rough diagram? – Yuyutsu Jun 17 '15 at 08:45 — Yuyutsu, Jun 17 '15 at 08:45

score 1 · Accepted Answer · answered Jun 16 '15 at 22:13

Instead of using same width constraint (which is fine too if you specify <= constraints, but needs some extra work after) you may use leading and trailing constraints. If your imageview will have a >= leading and <= trailing constraints for both of the labels + your labels will be in their intrinsic size, then imageview will have the maximum width. This can be illustrated with the picture below: example of IB configure
Make sure your labels has horizontal compression resistance set to required (1000) to prevent labels from being down-resized.

score 0 · Answer 2 · edited May 23 '17 at 12:14

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You can define your constraints in the code itself and add a constraint after you know the size of the wider UILabel

Take a look at this answer on how to add constraints programmatically

https://stackoverflow.com/a/13055845

edited May 23 '17 at 12:14

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answered Jun 16 '15 at 21:19

iKatalan

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Choosing maximum of two widths for auto layout

2 Answers2