UILabel宽度似乎没有自动调整

Question

I have two UILabel's, one for a temperature value and one for the degree's symbol. (It's because of the requirements of design that I have to have them as two separate labels instead of one).

My expectation is that when the temperature increases or decreases the overall width of the label would increase/decrease. I have a constraint that pins the degree symbol label to the right of the temperature so it seems to me that if the width of the temperature label increases/decreases then the degree symbol would move accordingly. Instead what it happening is the degree symbol position seems to remain static for some reason as you can see in the following two examples:

Here are the constraints of the temperature label:

Here are the constraints of the degree symbol label:

Is there something I need to do to the temperature label to make its with auto expand/contract?

EDIT: As requested, here is the temperature and degree symbol labels in relation to their containing view along with its constraints:

Answer 1

Your problem is that you're aligning the leading space of the degree label , to the trailing of Feels like label , so whatever the width of temperature label the degree will be steady at it's place , so remove that constraint and instead hook the leading of degree to trailing of 120 ( primary heart label aka temperature label )