displaying images in a stack view - ios

Question

Is it possible to display an image from the assets folder to a uistackview programmatically? If so, how would you go about doing it?
I already know how to create a stack view filled with labels.
fileprivate lazy var stack: UIStackView = {
let stack = UIStackView(arrangedSubviews: [goalCompleteLabel, completeMoreGoalsLabel])
stack.translatesAutoresizingMaskIntoConstraints = false
stack.axis = .vertical
return stack
} ()

Answer 1

First set your image in imageView (set in it its constraints for more control of image dimension) and your label under your class controller:
let image: UIImageView = {
let imageView = UIImageView()
imageView.image = UIImage(named: "yourImage")?.withRenderingMode(.alwaysOriginal)
imageView.backgroundColor = .gray
imageView.layer.cornerRadius = 8
imageView.clipsToBounds = true
imageView.contentMode = .scaleAspectFill
imageView.translatesAutoresizingMaskIntoConstraints = false
imageView.heightAnchor.constraint(equalToConstant: 200).isActive = true
imageView.widthAnchor.constraint(equalToConstant: 200).isActive = true
return imageView
}()
let completeMoreGoalsLabel: UILabel = {
let label = UILabel()
label.text = "Dummytext"
label.textAlignment = .center
return label
}()
now set your stack view with distribution fillProportionally:
lazy var stack: UIStackView = {
let stackView = UIStackView(arrangedSubviews: [image, completeMoreGoalsLabel])
stackView.axis = .vertical
stackView.distribution = .fillProportionally
stackView.translatesAutoresizingMaskIntoConstraints = false
return stackView
}()
in viewDidLoad present your stack and add constraints:
override func viewDidLoad() {
super.viewDidLoad()
view.backgroundColor = .darkGray
view.addSubview(stack)
stack.widthAnchor.constraint(equalToConstant: 200).isActive = true
stack.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
stack.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
stack.heightAnchor.constraint(equalToConstant: 250).isActive = true //200 imageHeight + 50 label height
}
I add corner radius on image to make it more cute...

Answer 2

Yes. You simply need to add an ImageView as an arranged subview of your stackview. Just like the labels. Here's the code -
class StackViewController: UIViewController {
var stackView = UIStackView()
var label = UILabel()
var imageView = UIImageView()
override func viewDidLoad() {
super.viewDidLoad()
configStackView()
}
func configStackView() -> Void {
// Add StackView as SubView
view.addSubview(stackView)
// Set StackView properties
stackView.axis = .vertical
stackView.alignment = .center
stackView.distribution = .equalSpacing
// Set imageView as 1st arranged subview of stackview
stackView.addArrangedSubview(imageView)
configImageView()
// Set Label as 2nd arranged subview of stackview
stackView.addArrangedSubview(label)
configLabel()
// Set StackView Constraints
setStackViewCostraints()
}
func setStackViewCostraints() -> Void {
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 20).isActive = true
stackView.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -20).isActive = true
stackView.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
stackView.heightAnchor.constraint(equalToConstant: 200).isActive = true
}
func configImageView() -> Void {
imageView.image = UIImage(named: "bolt")
imageView.contentMode = .scaleAspectFit
// Set Constraints (ideally in a separate function)
imageView.translatesAutoresizingMaskIntoConstraints = false
imageView.widthAnchor.constraint(equalToConstant: 100).isActive = true
}
func configLabel() -> Void {
label.text = "Label"
}
}
Here's the how it renders -