Estoy tratando de mostrar HeaderView en mi clase UICollectionView y uso la clase UICollectionReusableView para eso.

En realidad, estoy mostrando HeaderView en mi CollectionView pero no llega al área segura.

Uso el diseño automático mediante programación y escribí la extensión para hacerlo.

Aquí está mi clase y las extensiones que uso en mi código:

 import Foundation import UIKit private let headerIdentifer = "HeaderCell" class ProfileController: UICollectionViewController { //MARK: - Properties //MARK: - Lifecycle override func viewDidLoad() { super.viewDidLoad() configureProfileCollectionView() } override func viewWillAppear(_ animated: Bool) { super.viewWillAppear(animated) navigationController?.navigationBar.isHidden = true } //MARK: - Helpers func configureProfileCollectionView() { collectionView.backgroundColor = .white collectionView.register(HeaderView.self, forSupplementaryViewOfKind: UICollectionView.elementKindSectionHeader, withReuseIdentifier: headerIdentifer) } } extension ProfileController { override func collectionView(_ collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, at indexPath: IndexPath) -> UICollectionReusableView { let header = collectionView.dequeueReusableSupplementaryView(ofKind: kind, withReuseIdentifier: headerIdentifer, for: indexPath) as! HeaderView return header } } extension ProfileController: UICollectionViewDelegateFlowLayout { func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, referenceSizeForHeaderInSection section: Int) -> CGSize { return CGSize(width: view.frame.width, height: 300) } }

 import Foundation import UIKit class HeaderView: UICollectionReusableView { //MARK: - Properties private lazy var containerView: UIView = { let view = UIView() view.backgroundColor = .systemBlue view.addSubview(backButton) backButton.anchor(top: view.topAnchor, left: view.leftAnchor, paddingTop: 42, paddingLeft: 16) backButton.setDimensions(width: 30, height: 30) return view }() private lazy var backButton: UIButton = { let button = UIButton(type: .system) button.setImage(UIImage(named: "baseline_arrow_back_white_24dp")?.withRenderingMode(.alwaysOriginal), for: .normal) button.addTarget(self, action: #selector(backButtonTapped), for: .touchUpInside) return button }() //MARK: - Lifecyle override init(frame: CGRect) { super.init(frame: frame) addSubview(containerView) containerView.anchor(top: topAnchor, left: leftAnchor, right: rightAnchor, height: 108) } required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") } //MARK: - Selectors @objc func backButtonTapped() { } }

 import UIKit extension UIView { func anchor(top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil, paddingTop: CGFloat = 0, paddingLeft: CGFloat = 0, paddingBottom: CGFloat = 0, paddingRight: CGFloat = 0, width: CGFloat? = nil, height: CGFloat? = nil) { translatesAutoresizingMaskIntoConstraints = false if let top = top { topAnchor.constraint(equalTo: top, constant: paddingTop).isActive = true } if let left = left { leftAnchor.constraint(equalTo: left, constant: paddingLeft).isActive = true } if let bottom = bottom { bottomAnchor.constraint(equalTo: bottom, constant: -paddingBottom).isActive = true } if let right = right { rightAnchor.constraint(equalTo: right, constant: -paddingRight).isActive = true } if let width = width { widthAnchor.constraint(equalToConstant: width).isActive = true } if let height = height { heightAnchor.constraint(equalToConstant: height).isActive = true } } func center(inView view: UIView, yConstant: CGFloat? = 0) { translatesAutoresizingMaskIntoConstraints = false centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: yConstant!).isActive = true } func centerX(inView view: UIView, topAnchor: NSLayoutYAxisAnchor? = nil, paddingTop: CGFloat? = 0) { translatesAutoresizingMaskIntoConstraints = false centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true if let topAnchor = topAnchor { self.topAnchor.constraint(equalTo: topAnchor, constant: paddingTop!).isActive = true } } func centerY(inView view: UIView, leftAnchor: NSLayoutXAxisAnchor? = nil, paddingLeft: CGFloat? = nil, constant: CGFloat? = 0) { translatesAutoresizingMaskIntoConstraints = false centerYAnchor.constraint(equalTo: view.centerYAnchor, constant: constant!).isActive = true if let leftAnchor = leftAnchor, let padding = paddingLeft { self.leftAnchor.constraint(equalTo: leftAnchor, constant: padding).isActive = true } } func setDimensions(width: CGFloat, height: CGFloat) { translatesAutoresizingMaskIntoConstraints = false widthAnchor.constraint(equalToConstant: width).isActive = true heightAnchor.constraint(equalToConstant: height).isActive = true } func addConstraintsToFillView(_ view: UIView) { translatesAutoresizingMaskIntoConstraints = false anchor(top: view.topAnchor, left: view.leftAnchor, bottom: view.bottomAnchor, right: view.rightAnchor) } }