Choose which subview on a stackView will stretch (Programmatically) - ios

Question

I have a display of horizontal stack views, which subviews consists on a label and a textField. the stackView is constrained with the borders of the view
I'm trying to stretch my textField subview to so it fills the remaining space of the stack, while the label's stacks adjusts to fit the label size itself. But the inverse is happening. I've tried many solutions but nothing helped me. All the views and constraints we're made programmatically.
For my stack, I'm using:
func customTextField() -> UIStackView {
let stack: UIStackView = {
let sv = UIStackView()
sv.axis = .horizontal
sv.isLayoutMarginsRelativeArrangement = true
sv.alignment = .leading
sv.backgroundColor = .red
sv.translatesAutoresizingMaskIntoConstraints = false
return sv
}()
let label: UILabel = {
let lb = UILabel()
lb.backgroundColor = .red
lb.text = "Label is here"
lb.translatesAutoresizingMaskIntoConstraints = false
return lb
}()
let textField: UITextField = {
let tf = UITextField()
tf.backgroundColor = .blue
tf.text = "Text Field"
tf.translatesAutoresizingMaskIntoConstraints = false
return tf
}()
stack.addArrangedSubview(label)
stack.addArrangedSubview(textField)
return stack
}
the caller of my customTextField:
let profileUserStack: UIStackView = {
let stack = UIStackView()
stack.axis = .vertical
stack.spacing = 8
stack.contentMode = .scaleToFill
stack.translatesAutoresizingMaskIntoConstraints = false
return stack
}()
self.addSubview(profileUserStack)
for i in profileTextViews {
let view = self.customTextField()
profileUserStack.addArrangedSubview(view)
}
constraints.append(profileUserStack.buildConstraint(toItem: perfilImageView, constant: 32, type: .top, baseItem: .bottom))
constraints.append(profileUserStack.buildConstraint(toItem: self, constant: 16, type: .leading, baseItem: .leading))
constraints.append(profileUserStack.buildConstraint(toItem: self, constant: -16, type: .trailing, baseItem: .trailing))
activateConstraints(&constraints, to: self)
The results:
https://imgur.com/a/ccFZlRM
Notice that's exactly what I want to achieve. But I want the textField to be stretched.

Answer 1

Set contentHuggingPriority to your label such that it always stays as the size of its content and textField takes remaining space.
label.setContentHuggingPriority(.defaultHigh, for: .horizontal)