Large UINavigationBar resize smoothly when popping back too rootViewController - ios

Question

hey guys I've used large UINavigationBar in a child ViewController and i want to resize my navBar to default size when popping back to rootViewController smoothly.
vc's gif:https://giphy.com/gifs/1P0HwqlIqqMnzibxbH
EDIT
I don't want to remove largeNavBar from parent vc, i only want to disappear it gradually and with animation like app store:https://giphy.com/gifs/YXsTA6I5r0lGik1gC8
here is the child vc code:
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
self.initUI()
super.enableLargeNavigationTitle(title: (self.favorty?.sellerProduct?.product?.name)!)
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
super.removeTitleImage()
}
override func viewDidDisappear(_ animated: Bool) {
super.viewDidDisappear(true)
}
here is the enableLargeNavigationBar function:
func enableLargeNavigationTitle(title: String) {
self.navigationController?.view.backgroundColor = VVUtility.splashBackGroundColor()
self.navigationItem.title = "\(title)".localized()
self.navigationController?.navigationBar.titleTextAttributes = [NSAttributedStringKey.foregroundColor : UIColor.white, NSAttributedStringKey.font : VVUtility.normalFontWithPlusSize(increaseSize: -2.0)]
if #available(iOS 11.0, *) {
self.navigationController?.navigationBar.isTranslucent = false
self.navigationController?.navigationBar.prefersLargeTitles = true
self.navigationController?.navigationBar.backgroundColor = VVUtility.splashBackGroundColor()
self.navigationController?.navigationBar.largeTitleTextAttributes = [NSAttributedStringKey.foregroundColor : UIColor.white, NSAttributedStringKey.font : VVUtility.normalFontWithPlusSize(increaseSize: 0.0)]
} else {
// Fallback on earlier versions
}
}
disableLargeNavigation function:
func disableLargeNavigationTitle() {
if #available(iOS 11.0, *) {
self.navigationController?.navigationItem.largeTitleDisplayMode = .never
self.navigationController?.navigationBar.prefersLargeTitles = false
} else {
// Fallback on earlier versions
}
}
here is parent vc code:
override func viewDidLoad() {
super.viewDidLoad()
self.initUI()
self.getData()
super.disableLargeNavigationTitle()
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.navigationController?.navigationBar.addSubview(searchBarBoxView)
self.timerDelegate?.startTimer()
self.navigationController?.setNavigationBarHidden(false, animated: true)
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
self.searchBarBoxView.removeFromSuperview()
self.timerDelegate?.stopTimer()
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
self.tabBarController?.delegate = self
super.disableLargeNavigationTitle()
}

Answer 1

This worked for me. Try putting this code in awakeFromNib() for each view controller, with the settings changed as you need.
override func awakeFromNib() {
// Large titles
if #available(iOS 11.0, *) {
navigationController?.navigationBar.prefersLargeTitles = false // This could be true for other view controller
navigationItem.largeTitleDisplayMode = .never // This could be .always for other view controller
navigationController?.navigationBar.largeTitleTextAttributes = [NSAttributedStringKey.foregroundColor: UIColor.black] // Or whatever you want
} else {
// Handle iOS 10 and below (no large titles)
}
}
Alternatively, I think you can do this just in Storyboard, but that didn’t work for me.