Navigation bar title truncated after relaunching application - ios

Question

Recently I getting e wired problem
When I run my application from XCode navigation title text is showing perfect.
But when I close the application and reluanch again text cuts off with
...
I tried the following questions but no luck.
Here is my BaseViewController
import UIKit
import SnapKit
open class BaseViewController: UIViewController {
public lazy var navigationShadowView: UIView = {
let view = UIView()
DispatchQueue.main.async {
let gradientLayer = CAGradientLayer()
gradientLayer.colors = [UIColor.Blue10.cgColor, UIColor.Blue0.withAlphaComponent(0.0).cgColor]
gradientLayer.frame = view.bounds
view.layer.addSublayer(gradientLayer)
}
return view
}()
public override func viewDidLoad() {
loadDefaults()
setupUI()
}
}
extension BaseViewController {
private func loadDefaults() {
view.backgroundColor = .white
tabBarController?.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)
navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .plain, target: nil, action: nil)
// MARK: Navigation bar bottom shadow
view.addSubview(navigationShadowView)
navigationShadowView.snp.makeConstraints { make in
make.top.equalTo(view.safeAreaLayoutGuide.snp.top)
make.leading.equalTo(view.snp.leading)
make.trailing.equalTo(view.snp.trailing)
make.height.equalTo(10)
}
}
#objc open func setupUI() {
}
}
I populate the view in viewcontroller like below
import UIKit
import CoreModule
import SnapKit
import Combine
class CustomerProjectListVC: BaseViewController {
lazy var refreshControl: UIRefreshControl = {
let refresh = UIRefreshControl()
refresh.addTarget(self, action: #selector(refreshProjects(_:)), for: .valueChanged)
return refresh
}()
lazy var jobsTableView: UITableView = {
let tableView = UITableView()
tableView.showsHorizontalScrollIndicator = false
tableView.showsVerticalScrollIndicator = false
tableView.separatorStyle = .none
tableView.rowHeight = 220
tableView.backgroundColor = .Blue0
tableView.addSubview(refreshControl)
tableView.register(ProjectListTableViewCell.self, forCellReuseIdentifier: ProjectListTableViewCell.identifier)
tableView.dataSource = self
tableView.delegate = self
return tableView
}()
private let viewModel = CustomerProjectListViewModel()
private var subscription = Set<AnyCancellable>()
override func viewDidAppear(_ animated: Bool) {
tabBarController?.navigationItem.title = "Project List"
tabBarController?.navigationItem.rightBarButtonItem = nil
}
override func setupUI() {
view.addSubview(jobsTableView)
jobsTableView.snp.makeConstraints { make in
make.top.equalTo(view.safeAreaLayoutGuide.snp.top)
make.leading.equalToSuperview()
make.trailing.equalToSuperview()
make.bottom.equalToSuperview()
}
populateData()
}
}
Here is the CustomeTabBarController
class CustomerTabBarController: UITabBarController {
override func viewDidLoad() {
super.viewDidLoad()
tabBar.backgroundColor = .white
viewControllers = [
createNavController(for: sideMenuController(), title: "Home", image: UIImage(named: .TabBarHome)!),
createNavController(for: ProfileVC(), title: "Profile", image: UIImage(named: .TabBarProfile)!),
createNavController(for: NewPostVC(), title: "Post", image: UIImage(named: .TabBarPost)!),
createNavController(for: CustomerProjectListVC(), title: "Chatbox", image: UIImage(named: .TabBarChatBox)!),
createNavController(for: HomeVC(), title: "Notification", image: UIImage(named: .TabBarNotification)!)
]
}
}
extension CustomerTabBarController {
fileprivate func createNavController(for rootViewController: UIViewController,
title: String,
image: UIImage) -> UIViewController {
rootViewController.tabBarItem.title = title
rootViewController.tabBarItem.image = image
return rootViewController
}
}
extension CustomerTabBarController {
private func configureSideMenu() {
SideMenuController.preferences.basic.menuWidth = UIScreen.main.bounds.width - 80
SideMenuController.preferences.basic.position = .above
SideMenuController.preferences.basic.direction = .right
}
private func sideMenuController() -> SideMenuController {
configureSideMenu()
return SideMenuController(contentViewController: HomeVC(), menuViewController: SideMenuVC())
}
}
And I am initiating the viewcontroller like following
let viewController = CustomerTabBarController()
let navigationViewController = UINavigationController(rootViewController: viewController)
window?.rootViewController = navigationViewController
window?.makeKeyAndVisible()
Navigation Bar Shrinking after relaunching app
Navigation Bar Title truncated
Here I attached some screenshots.
Following one is launching from XCode
https://pasteboard.co/HHl1vFJYbzeX.png
2nd one is after relaunch
https://pasteboard.co/kw3zRZqic9q7.png
My question is why this does not happen when runs from XCode but when the app relaunchs.
I have tried many ways like setupui from viewdidappear methods and others. But no luck.
Please help me out.

Answer 1

It seems like you're setting the title of a wrong view controller and it's also worth checking if you have the correct navigation hierarchy. My best be would that this is causing the problems.
The typical hierarchy of tab-based apps is the following: UITabBarController (root) → UINavigationController (one per each tab) → YourViewController.
Now, I see that you're setting the navigation title as follows:
tabBarController?.navigationItem.title = "Project List"
This is strange and unusual. The view controller is supposed to set its own title like this:
navigationItem.title = "Project List"
Then its parent UINavigationController will be able use this title.
It's also worth setting the title in viewDidLoad, not it viewDidAppear so that the title is visible before the transition animation and not after it.
So check the hierarchy of the view controllers in the app and make sure each view controller only sets its own navigation title.
If that doesn't help, I'll be happy to retract my answer to avoid confusion.