Я создаю пользовательскую панель навигации в swift для каждого экрана.Я вызываю эту функцию на viewWillAppear во время первой загрузки, она идет правильно, если Экран первой загрузки .Я перехожу на другой экран, он меняется. Следующий экран просмотра навигации по заголовку смещен .если я вернулся к предыдущему экрану, то он также был сдвинут введите описание изображения здесь .Я не могу найти ошибку, где код был неправильным. Левые и правильные элементы навигации размещаются нормально.Но navigationtitle представление только смещается.
extension UIViewController {
func reightMenuItems(_ isMenuBtn: Bool, _ navigationItem:UINavigationItem) {
if isMenuBtn {
let leftView = UIView()
leftView.backgroundColor = .clear
leftView.frame = CGRect(x: 0, y: 0, width: 40, height: 44)
let menuImage = UIImageView(image:#imageLiteral(resourceName: "MenuIcon"))
menuImage.contentMode = .scaleAspectFit
menuImage.frame = CGRect(x: 2.5, y: 6, width: 35, height: 32)
leftView.addSubview(menuImage)
let followButton = UIButton(type: .system)
followButton.frame = CGRect(x: 0, y: 0, width: 40, height: 44)
followButton.contentEdgeInsets = UIEdgeInsetsMake(0, -20, 0, 0)
followButton.addTarget(self, action: #selector(self.btnClickMenu), for: .touchUpInside)
leftView.addSubview(followButton)
navigationItem.leftBarButtonItems = [UIBarButtonItem(customView: leftView)]
}else{
let leftView = UIView()
leftView.backgroundColor = .clear
leftView.frame = CGRect(x: 0, y: 0, width: 40, height: 44)
let menuImage = UIImageView(image:#imageLiteral(resourceName: "arrow_white-left"))
menuImage.contentMode = .scaleToFill
menuImage.frame = CGRect(x: 12.5, y: 10.5, width: 15, height: 25)
leftView.addSubview(menuImage)
let followButton = UIButton(type: .system)
followButton.frame = CGRect(x: 0, y: 0, width: 40, height: 44)
leftView.addSubview(followButton)
followButton.addTarget(self, action: #selector(self.btnClickBack), for: .touchUpInside)
navigationItem.leftBarButtonItems = [UIBarButtonItem(customView: leftView)]
}
}
fileprivate func leftMenuItems(_ isCart: Bool, _ navigationItem: UINavigationItem) {
//lecftButtons
if isCart {
let reightView = UIView()
reightView.backgroundColor = .clear
reightView.frame = CGRect(x: 0, y: 0, width: 40, height: 44)
let menuImage = UIImageView(image:#imageLiteral(resourceName: "Cart"))
menuImage.contentMode = .scaleToFill
menuImage.frame = CGRect(x: 2.5, y: 6, width: 35, height: 34)
reightView.addSubview(menuImage)
let cartBtn = UIButton(type: .system)
cartBtn.frame = CGRect(x: 0, y: 0, width: 40, height: 44)
reightView.addSubview(cartBtn)
cartBtn.addTarget(self, action: #selector(self.btnClickCart), for: .touchUpInside)
navigationItem.rightBarButtonItems = [UIBarButtonItem(customView: reightView)]
}else{
let composeButton = BtnFontBold20()
composeButton.setTitle("Done", for: .normal)
composeButton.titleLabel?.textColor = .white
composeButton.frame = CGRect(x: 0, y: 00, width: 34, height: 44)
composeButton.contentEdgeInsets = UIEdgeInsetsMake(0, 20, 0, 0)
composeButton.addTarget(self, action: #selector(self.btnClickCart), for: .touchUpInside)
navigationItem.rightBarButtonItems = [UIBarButtonItem(customView: composeButton)]
}
}
func setupNavItems(_ navigationItem: UINavigationItem , day:String = "",address:String = "",type:Int,isMenuBtn:Bool,isCart:Bool,title:String = "") {
//NavigationItem
self.navigationController?.isNavigationBarHidden = false
self.navigationController?.navigationBar.isTranslucent = false
self.navigationController?.navigationBar.setValue(true, forKey: "hidesShadow")
//Shadow
self.navigationController?.navigationBar.layer.shadowOffset = CGSize(width: 1.5, height: 1.5)
self.navigationController?.navigationBar.layer.shadowRadius = 2.0
self.navigationController?.navigationBar.layer.shadowOpacity = 0.5
//reight Menu Items
reightMenuItems(isMenuBtn, navigationItem)
leftMenuItems(isCart, navigationItem)
let height = navigationController?.navigationBar.frame.height ?? 0
let leftButtonWidth: CGFloat = 90 // left padding
let width2 = AppConstants.screenWidth - leftButtonWidth
print(width2)
let Titleview = UIView(frame: CGRect(x: 0, y: 0, width: width2, height: height))
Titleview.backgroundColor = .clear
navigationItem.titleView = Titleview
if type == 1 {
let dayLbl = FontBold18(frame: CGRect(x: 0, y: 0, width: min(width2/2,40), height: height))
dayLbl.text = day
dayLbl.textColor = .white
dayLbl.textAlignment = .left
dayLbl.numberOfLines = 1
Titleview.addSubview(dayLbl)
let DirectImag = UIImageView()
DirectImag.contentMode = .scaleAspectFit
DirectImag.image = #imageLiteral(resourceName: "RightDirection")
Titleview.addSubview(DirectImag)
DirectImag.translatesAutoresizingMaskIntoConstraints = false
DirectImag.widthAnchor.constraint(equalToConstant: 15).isActive = true
DirectImag.heightAnchor.constraint(equalToConstant: 15).isActive = true
DirectImag.leadingAnchor.constraint(equalTo: dayLbl.trailingAnchor, constant:5).isActive = true
DirectImag.centerYAnchor.constraint(equalTo: dayLbl.centerYAnchor).isActive = true
let dayBtn = UIButton(type: .system)
dayBtn.addTarget(self, action: #selector(self.btnClickASAPType), for: .touchUpInside)
Titleview.addSubview(dayBtn)
dayBtn.translatesAutoresizingMaskIntoConstraints = false
dayBtn.centerYAnchor.constraint(equalTo: dayLbl.centerYAnchor).isActive = true
dayBtn.centerXAnchor.constraint(equalTo: dayLbl.centerXAnchor, constant: 0).isActive = true
dayBtn.heightAnchor.constraint(equalTo: dayLbl.heightAnchor).isActive = true
dayBtn.widthAnchor.constraint(equalTo: dayLbl.widthAnchor , constant:25).isActive = true
let addLbl = FontBold18()
addLbl.textColor = .white
addLbl.textAlignment = .left
addLbl.numberOfLines = 1
Titleview.addSubview(addLbl)
addLbl.text = address
addLbl.translatesAutoresizingMaskIntoConstraints = false
addLbl.leadingAnchor.constraint(equalTo: DirectImag.trailingAnchor,constant:5).isActive = true
addLbl.heightAnchor.constraint(equalToConstant: height).isActive = true
addLbl.centerYAnchor.constraint(equalTo: Titleview.centerYAnchor).isActive = true
addLbl.widthAnchor.constraint(lessThanOrEqualToConstant: (width2 - dayLbl.frame.width) * 0.9).isActive = true
let downImag = UIImageView()
downImag.contentMode = .scaleAspectFit
downImag.image = #imageLiteral(resourceName: "down-arrow-white")
Titleview.addSubview(downImag)
downImag.translatesAutoresizingMaskIntoConstraints = false
downImag.widthAnchor.constraint(equalToConstant: 15).isActive = true
downImag.heightAnchor.constraint(equalToConstant: 15).isActive = true
downImag.leadingAnchor.constraint(equalTo: addLbl.trailingAnchor, constant:5).isActive = true
downImag.centerYAnchor.constraint(equalTo: addLbl.centerYAnchor).isActive = true
let addressBtn = UIButton(type: .system)
addressBtn.backgroundColor = .clear
addressBtn.addTarget(self, action: #selector(self.btnClickAddress), for: .touchUpInside)
Titleview.addSubview(addressBtn)
addressBtn.translatesAutoresizingMaskIntoConstraints = false
addressBtn.centerYAnchor.constraint(equalTo: addLbl.centerYAnchor).isActive = true
addressBtn.leadingAnchor.constraint(equalTo: addLbl.leadingAnchor, constant: 0).isActive = true
addressBtn.heightAnchor.constraint(equalTo: addLbl.heightAnchor).isActive = true
addressBtn.widthAnchor.constraint(equalTo: addLbl.widthAnchor).isActive = true
}
else if type == 2{
let dayLbl = FontBold18()
dayLbl.text = title
dayLbl.textColor = .white
dayLbl.textAlignment = .center
dayLbl.numberOfLines = 1
Titleview.addSubview(dayLbl)
dayLbl.translatesAutoresizingMaskIntoConstraints = false
dayLbl.centerXAnchor.constraint(equalTo: Titleview.centerXAnchor).isActive = true
dayLbl.centerYAnchor.constraint(equalTo: Titleview.centerYAnchor).isActive = true
}
}
@objc func btnClickASAPType() {
print("DayExt")
// self.overriderFunc()
}
@objc func btnClickAddress() {
print("AddressExt")
}
@objc func btnClickCart() {
print("CartExt")
}
@objc func btnClickMenu() {
print("MenuExt")
}
@objc func btnClickBack() {
print("backExt")
self.navigationController?.popViewController(animated: true)
}
}
вызывает метод setupNavigation в viewDidLoad
self.setupNavItems( self.navigationItem, day:"Today", address:"Jayanagar 4th Block", type: 1,isMenuBtn: false,isCart: true)