dynamic height of UICollectionView (horizontal scrolling) based on cell height - ios

Question

I've got the following situation:
A collectionView inside a containerView that sits below the navigationBar. The view is set up programmatically (no xib).
I want to place the containerView in a way that it does not need a height constraint. Is that possible? The containerView should get it's height based on the constraints in the collectionView cells.
Code:
This is the function which lays out the containerView inside the viewController:
private func setUpContainerView() {
view.addSubview(containerView)
containerView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
containerView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
containerView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
containerView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 20)
])
}
Inside the containerView (which is a subclass of UIView), the collectionView is set up like that (called in the init of that class):
private func setUpCollectionView() {
collectionView = UICollectionView(frame: CGRect.zero, collectionViewLayout: collectionViewFlowLayout())
guard let collectionView = collectionView else { return }
addSubview(collectionView)
collectionView.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
collectionView.trailingAnchor.constraint(equalTo: self.trailingAnchor),
collectionView.leadingAnchor.constraint(equalTo: self.leadingAnchor),
collectionView.bottomAnchor.constraint(equalTo: self.bottomAnchor),
collectionView.topAnchor.constraint(equalTo: self.topAnchor)
])
collectionView.delegate = self
collectionView.dataSource = self
registerCollectionViewNibs()
}
private func collectionViewFlowLayout() -> UICollectionViewFlowLayout{
let flowLayout = UICollectionViewFlowLayout()
flowLayout.scrollDirection = .horizontal
flowLayout.minimumInteritemSpacing = 10
flowLayout.minimumLineSpacing = 10
flowLayout.estimatedItemSize = UICollectionViewFlowLayout.automaticSize
return flowLayout
}
When I do it like that, the collectionView is not visible. It only shows up when I add a height constraint with a specific constant to the containerView (inside the setUpContainerView function).
The problem is, that I don't know that height. I would have to set that height to 10+10+50 = 70 manually. But I want to make the containerView get it's size based on the collectionView cell constraints. Is that possible?