UIStackView For Showing And Hiding User Interface Controls

Animating and (de)activating Auto Layout constraints always leaves me puzzled at first. When on iOS, I try to not add constraints with explicit width/height values to train myself to rely on relative values. This helps me cover multiple screen sizes with the same settings.

I asked Lawrence MacFadyen on Twitter recently if his UIStackView animation wouldn’t work without an explicit width. Seems it does, so he published an updated post.