Fill UIStackView by Ratio?

Question

I have a horizontal UIStackView with 2 views within it. I'd like to have the left view take up ~70% of the screen, and the right view take up the remaining 30%. I know that I can set the UIStackView alignment to Fill and the distribution to Fill and that will allow me to have more control over my subview sizes. What I can't figure out is how to set the layout constraints/widths/etc. on the subviews so that the the 70/30 ratio is correct, particularly when the device is rotated?

Can anyone explain how to set the constraints on my subviews so that the 70/30 ratio is maintained across device rotations?

Answer 1

You should be able to do this by creating an equal width constraint for the two views. Then, set the multiplier to that constraint to 0.7.