Wrappers for UICollectionReusableView and UICollectionViewCell which allow to use SwiftUI views in UIKit UICollectionView

HostingCollectionReusableView.swift

import SwiftUI

public class HostingCollectionReusableView<Content: View>: UICollectionReusableView {

    private let hostingController = UIHostingController<Content?>(rootView: nil, ignoreSafeArea: true)

    override init(frame: CGRect) {
        super.init(frame: frame)
        setup()
    }

    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    public func configure(with view: Content) {
        hostingController.rootView = view
        hostingController.view.backgroundColor = .clear
        hostingController.view.invalidateIntrinsicContentSize()
    }

    private func setup() {
        addSubview(hostingController.view)
        hostingController.view.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            hostingController.view.leadingAnchor.constraint(equalTo: leadingAnchor),
            hostingController.view.trailingAnchor.constraint(equalTo: trailingAnchor),
            hostingController.view.topAnchor.constraint(equalTo: topAnchor),
            hostingController.view.bottomAnchor.constraint(equalTo: bottomAnchor)
        ])
    }
}

HostingCollectionViewCell.swift

import SwiftUI

public class HostingCollectionViewCell<Content: View>: UICollectionViewCell {

    private let hostingController = UIHostingController<Content?>(rootView: nil, ignoreSafeArea: true)

    override init(frame: CGRect) {
        super.init(frame: frame)
        setup()
    }

    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    public func configure(with view: Content) {
        hostingController.rootView = view
        hostingController.view.backgroundColor = .clear
        hostingController.view.invalidateIntrinsicContentSize()
    }

    private func setup() {
        contentView.addSubview(hostingController.view)
        hostingController.view.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            hostingController.view.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
            hostingController.view.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
            hostingController.view.topAnchor.constraint(equalTo: contentView.topAnchor),
            hostingController.view.bottomAnchor.constraint(equalTo: contentView.bottomAnchor)
        ])
    }
}