Accessible TableViewCell like system UITableViewCell

TableViewCell.swift

//
//  TableViewCell.swift
//  iOS12App
//
//  Created by Kazuma Koze on 2020/03/05.
//  Copyright © 2020 Climb App. All rights reserved.
//

import UIKit

class TableViewCell: UITableViewCell {

    @IBOutlet weak var titleLabel: UILabel!
    @IBOutlet weak var subheadLabel: UILabel!
    @IBOutlet weak var bodyLabel: UILabel!

    @IBOutlet weak var stackView: UIStackView!
    
    override func awakeFromNib() {
        super.awakeFromNib()
        // for SwiftUI preview
        setContentHuggingPriority(.defaultHigh, for: .vertical)

        updateStackViewAxis(traitCollection.preferredContentSizeCategory.isAccessibilityCategory)
    }

    override func traitCollectionDidChange(_ previousTraitCollection: UITraitCollection?) {
        super.traitCollectionDidChange(previousTraitCollection)
        let isAccessibilityCategory = traitCollection.preferredContentSizeCategory.isAccessibilityCategory
        if isAccessibilityCategory != previousTraitCollection?.preferredContentSizeCategory.isAccessibilityCategory {
            updateStackViewAxis(isAccessibilityCategory)
        }
    }
    
    private func updateStackViewAxis(_ isAccessibilityCategory: Bool) {
        stackView.axis = isAccessibilityCategory ? .vertical : .horizontal
        stackView.alignment = isAccessibilityCategory ? .leading : .center
    }

    // for SwiftUI preview
    override var intrinsicContentSize: CGSize {
        return systemLayoutSizeFitting(UIView.layoutFittingCompressedSize)
    }
}