How to add leading padding to view added inside an UIStackView

Solution 1:

When isLayoutMarginsRelativeArrangement property is true, the stack view will layout its arranged views relative to its layout margins.

stackView.layoutMargins = UIEdgeInsets(top: 0, left: 20, bottom: 0, right: 20)
stackView.isLayoutMarginsRelativeArrangement = true

But it affects all arranged views inside to the stack view. If you want this padding for only one arranged view, you need to use nested UIStackView

Solution 2:

I have found that constraints don't work inside a Stack View, or they seem somewhat strange.

(Such as if I add leading/trailing constraint to selected on image stackview, that adds leading to collectionview too, but doesn't add trailing; and it be conflict for sure).

To set layout margins for all views inside the stackview, select:

Stack View > Size Inspector > Layout Margins > Fixed

Note: "Fixed" option was formerly called "Explicit", as seen in the screenshots.

Then add your padding:

Solution 3:

The solution you have provided doesn't add a padding for your views inside your UIStackView (as you wanted in the question), but it adds a leading for the UIStackView.

A solution could be to add another UIStackView inside your original UIStackView and give the leading to this new UIStackVIew. Then, add your views to this new UIStackView.

Hint, you can do that completely using Interface Builder. In other words, no need to write code for it.