changing property contentsGravity in transform-only layer, will have no effect

Question

I started to create a very simple tic-tac-toe game. The main goal is to make the view proportional to all screen sizes of all iOS devices. So I put the image on a View

Answer 1

It looks like what you did is perfectly correct.

However, I'm wondering why you chose to put your imageview into a stackview when you could have just as easily pinned the sides without the stackview. I am a big fan of stackviews but they don't make sense everywhere. Unless you're planning on adding new views, and resizing your ticktactoe board, I might not use it.