Why UILabel's height become zero if doesn't hold any text?

Question

I expected from the label to keep the minimal height of one line even if you remove the text out of it.

Here's the picture:

How it should look (but without whitespace):

If I enter the one whitespace in it, its height gets corrected. But I dont want to put whitespace into empty labels. there should be a better solution.

Answer 1

The UILabel control have an intrinsic content size so if you don't have any text his height will be zero, If you need a min height then you must define a Height constraint with >= your minValue as I said in my comments

I think you can figured it out how do this