ios – What is the correct manner to make use of auto format inside baby view controller that manages by a foremost controller

Is not suppose AutoLayout do the all job for us once we use it. I could not determine the issue with ChatGPT, so, I nonetheless want superior folks’s assist, right here.

I need my storage view get shrink / unshrink accordingly so the principle view controller and baby controller all collectively. However As an alternative it get messy. I believe the code shall be extra self explanatory.

Any assist appreciated.
Thanks

class ViewController: UIViewController {
    
    let tableContainer = UIView()
    let childVC = StorageViewController()
    
    override func viewDidLoad() {
        tremendous.viewDidLoad()
        
        addChild(childVC)
        view.addSubview(childVC.view)
        
        childVC.didMove(toParent: self)
        
        tableContainer.backgroundColor = .systemIndigo
        view.addSubview(tableContainer)
        
        childVC.view.translatesAutoresizingMaskIntoConstraints = false
        tableContainer.translatesAutoresizingMaskIntoConstraints = false
        
        let topAnchor: NSLayoutYAxisAnchor
        
        if #accessible(iOS 11.0, *) {
            topAnchor = view.safeAreaLayoutGuide.topAnchor
        } else {
            topAnchor = topLayoutGuide.bottomAnchor
        }
        
        NSLayoutConstraint.activate([
            childVC.view.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            childVC.view.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            childVC.view.topAnchor.constraint(equalTo: topAnchor),
            childVC.view.heightAnchor.constraint(equalToConstant: 133),
            
            tableContainer.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            tableContainer.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            tableContainer.topAnchor.constraint(equalTo: childVC.view.bottomAnchor),
            tableContainer.bottomAnchor.constraint(equalTo: view.bottomAnchor),
        ])
        
        // Add button to tableContainer
        let changeColorButton = UIButton(sort: .system)
        changeColorButton.tintColor = .white
        changeColorButton.setTitle("Change Shade", for: .regular)
        changeColorButton.addTarget(self, motion: #selector(changeColorButtonTapped), for: .touchUpInside)
        
        tableContainer.addSubview(changeColorButton)
        
        changeColorButton.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            changeColorButton.centerXAnchor.constraint(equalTo: tableContainer.centerXAnchor),
            changeColorButton.centerYAnchor.constraint(equalTo: tableContainer.centerYAnchor)
        ])
        
        // Add Toggle Warning Container button
        let toggleWarningContainerButton = UIButton(sort: .system)
        toggleWarningContainerButton.tintColor = .white
        toggleWarningContainerButton.setTitle("Toggle Warning", for: .regular)
        toggleWarningContainerButton.addTarget(self, motion: #selector(toggleWarningContainerButtonTapped), for: .touchUpInside)
        
        tableContainer.addSubview(toggleWarningContainerButton)
        
        toggleWarningContainerButton.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            toggleWarningContainerButton.centerXAnchor.constraint(equalTo: tableContainer.centerXAnchor),
            toggleWarningContainerButton.topAnchor.constraint(equalTo: changeColorButton.bottomAnchor, constant: 16)
        ])
    }
    
    @objc non-public func changeColorButtonTapped() {
        childVC.changeStorageViewBackgroundColor(to: .pink)
    }
    
    @objc non-public func toggleWarningContainerButtonTapped() {
        childVC.toggleWarningContainerVisibility()
    }
}


class StorageViewController: UIViewController {
    let storageView = StorageView()
    
    override func viewDidLoad() {
        tremendous.viewDidLoad()
        
        view.backgroundColor = .yellow
        
        // Add the customized StorageView
        view.addSubview(storageView)
        
        storageView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            storageView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            storageView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            storageView.topAnchor.constraint(equalTo: view.topAnchor),
            storageView.heightAnchor.constraint(lessThanOrEqualToConstant: 133)
        ])
    }
    
    func changeStorageViewBackgroundColor(to paint: UIColor) {
        storageView.backgroundColor = colour
    }
    
    func toggleWarningContainerVisibility() {
        storageView.toggleWarningContainerVisibility()
    }
}

class StorageView: UIView {
    let containerView = UIView()
    let warningIconImageView = UIImageView(picture: UIImage(systemName: "exclamationmark.triangle.fill"))
    let warningLabel = UILabel()
    let usageLabel = UILabel()
    
    non-public var warningContainerHeightConstraint: NSLayoutConstraint!
    non-public var isWarningContainerVisible = true
    
    override init(body: CGRect) {
        tremendous.init(body: body)
        setupView()
    }
    
    required init?(coder aDecoder: NSCoder) {
        tremendous.init(coder: aDecoder)
        setupView()
    }
    
    non-public func setupView() {
        backgroundColor = .inexperienced
        
        // Container View
        containerView.backgroundColor = .yellow
        addSubview(containerView)
        
        containerView.translatesAutoresizingMaskIntoConstraints = false
        warningContainerHeightConstraint = containerView.heightAnchor.constraint(lessThanOrEqualToConstant: 92)
        
        NSLayoutConstraint.activate([
            containerView.leadingAnchor.constraint(equalTo: leadingAnchor),
            containerView.trailingAnchor.constraint(equalTo: trailingAnchor),
            containerView.topAnchor.constraint(equalTo: topAnchor),
            warningContainerHeightConstraint!,
        ])
        
        // Warning Icon
        containerView.addSubview(warningIconImageView)
        warningIconImageView.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            warningIconImageView.leadingAnchor.constraint(equalTo: containerView.leadingAnchor, constant: 10),
            warningIconImageView.centerYAnchor.constraint(equalTo: containerView.centerYAnchor),
            warningIconImageView.widthAnchor.constraint(equalToConstant: 24),
            warningIconImageView.heightAnchor.constraint(equalToConstant: 24)
        ])
        
        // Warning Label
        warningLabel.textual content = "storage exceed"
        warningLabel.numberOfLines = 0
        containerView.addSubview(warningLabel)
        warningLabel.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            warningLabel.leadingAnchor.constraint(equalTo: warningIconImageView.trailingAnchor, constant: 8),
            warningLabel.centerYAnchor.constraint(equalTo: containerView.centerYAnchor)
        ])
        
        // Utilization Label
        usageLabel.textual content = "5GB of 4GB has been used"
        addSubview(usageLabel)
        usageLabel.translatesAutoresizingMaskIntoConstraints = false
        NSLayoutConstraint.activate([
            usageLabel.leadingAnchor.constraint(equalTo: leadingAnchor),
            usageLabel.trailingAnchor.constraint(equalTo: trailingAnchor),
            usageLabel.bottomAnchor.constraint(equalTo: bottomAnchor),
            usageLabel.heightAnchor.constraint(lessThanOrEqualToConstant: 41)
        ])
    }
    
    func toggleWarningContainerVisibility() {
        isWarningContainerVisible.toggle()
        warningContainerHeightConstraint.fixed = isWarningContainerVisible ? 92 : 0
        UIView.animate(withDuration: 0.3) {
            self.containerView.isHidden = !self.isWarningContainerVisible
            self.layoutIfNeeded()
        }
    }
}

Once I toggle visibility of warning container I count on the all view resize accordingly.