I’m building a simple application using autolayout, and I’ve run into a strange situation. I place a Text Field in an empty part of a large open view so it’s not affected by anything but the super view, but when I try to modify the “Width” constraint to be >= instead of ==, it creates a new constraint and refuses to modify the old one. I can’t delete it, or change any of its attributes, because it just creates a new one.
Here is a comparison of the two constraints, the purple one being the stubborn one, and the blue one being the newly created one.
Why is the purple rounded one not modifiable?
My problem had to do with with fact that there weren’t enough other constraints added that the width would ever be forced to change. When I added more other constraints (such as leading and trailing space), I was then able to alter the purple constraint (in fact, it disappeared and I had to add my own).
It seems strange that you cannot add your own constraints unless there is a possibility of them being broken, but I guess that’s the way it’s been integrated into IB in some cases.