largeTitle of navigationBar collapse after refreshControl.endRefreshing swift - ios

Question

Encountered a problem: largeTitle of navigation bar collapsing to small title ~once per 20 attempts after refreshControl.endRefreshing().
tableView is first subview of subviews hierarchy, and top constraint is to superview (not to safeArea)
refreshControl added to tableView.refreshControl, not as subview of tableView
was trying call navigationBar.sizeToFit() after endRefreshing - not success.
Controller code:
override public func viewDidLoad() {
super.viewDidLoad()
definesPresentationContext = true
title = L10n.Trainers.trainers.uppercased()
navigationController?.navigationBar.layoutMargins = .init(top: 0, left: 16, bottom: 0, right: 16)
configureSubviews()
makeConstraints()
configureBindings()
configureActions()
setupTableView()
setupResultsTableView()
}
override public func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
navigationController?.navigationBar.prefersLargeTitles = true
navigationController?.navigationItem.largeTitleDisplayMode = .always
navigationController?.navigationBar.sizeToFit()
}
override public func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(animated)
navigationController?.navigationItem.largeTitleDisplayMode = .automatic
}
override public func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
vm.onViewDidAppear()
mainView.tableView.refreshControl = mainView.refreshControl
}
override public func loadView() {
view = mainView
}
Refresh-logic code:
vm.isLoading.drive { [weak self] loading in
guard let self = self else { return }
if self.mainView.refreshControl.isRefreshing {
if !loading {
self.mainView.tableView.refreshControl?.endRefreshing()
}
} else {
if loading {
var style = LoaderParameters.blue
style.installConstraints = false
self.mainView.tableView.startLoading(with: style)
self.mainView.tableView.existedLoaderView?.centerX().centerY(-40)
} else {
self.mainView.tableView.stopLoadingProgress()
}
}
}.store(in: &subscriptions)
View code:
final class TrainersView: UIView {
override init(frame: CGRect) {
super.init(frame: frame)
configureSubviews()
makeConstraints()
}
required init?(coder: NSCoder) {
super.init(coder: coder)
}
private(set) lazy var refreshControl = UIRefreshControl().configureWithAutoLayout {
$0.tintColor = Asset.mainGrey.color
}
private(set) lazy var topView: UIView = {
let view = UIView()
view.backgroundColor = .clear
return view
}()
private(set) lazy var tableView = UITableView().configureWithAutoLayout {
$0.register(TrainerCell.self)
$0.tableFooterView = UIView()
$0.showsVerticalScrollIndicator = false
$0.separatorStyle = .none
$0.backgroundColor = Asset.mainWhite.color
}
private func configureSubviews() {
addSubview(tableView)
topView.addSubview(segmentedControl)
tableView.tableHeaderView = topView
tableView.tableHeaderView?.frame.size.height = 60
tableView.tableFooterView?.frame.size.height = 40
tableView.reloadData()
}
private func makeConstraints() {
tableView.pinToSuperview()
segmentedControl.centerX()
segmentedControl.bottomAnchor.constraint(equalTo: topView.bottomAnchor, constant: -8).priority(999).activate()
segmentedControl.widthAnchor ~ widthAnchor - 16 * 2
}
}