我将尽力解释我的问题，所以提前致谢。
我通常通过让每个 View Controller 代表不同的 View 来构建具有许多 View Controller 的应用程序。现在，我正在创建一个具有许多不同 View 的大型应用程序。我不想在我的应用程序中有 15 个以上的 viewController。我宁愿让一个 View Controller 继承不同的 UIView。
例如，如果在我的菜单栏上选择“设置”选项。然后我将被带到 selectionController 并让 SelectionController 继承名为 Settings View
的 UIView目前，我可以导航到我的 settingsController 并让导航栏代表所选的选项。但我该如何继承 SettingsView 呢？
家庭 Controller
class HomeController: UIViewController {
lazy var menu: Menu = {
let menuLauncher = Menu()
menuLauncher.homeController = self
return menuLauncher
}()
override func viewDidLoad() {
super.viewDidLoad()
navigationItem.title = "Home"
view.backgroundColor = Color.blue
navigationItem.leftBarButtonItem = UIBarButtonItem(image: UIImage(named: "menu"), style: .plain, target: self, action: #selector(displayMenu))
}
func displayController(menuOption: MenuOption) {
let selectionController = UIViewController()
selectionController.navigationItem.title = menuOption.name
selectionController.view.backgroundColor = Color.blue
navigationController?.navigationBar.tintColor = UIColor.white
navigationController?.pushViewController(selectionController, animated: true)
}
@objc func displayMenu() {
menu.displayMenu()
}
}
菜单 View
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return menuOptions.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath) as! MenuCell
let menuOption = menuOptions[indexPath.row]
cell.menuOption = menuOption
return cell
}
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
return CGSize(width: collectionView.frame.width, height: 30)
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let menuOption = self.menuOptions[indexPath.row]
print(menuOption.name)
UIView.animate(withDuration: 0.5, delay: 0, usingSpringWithDamping: 1, initialSpringVelocity: 1, options: .curveEaseOut, animations: {
self.blackView.alpha = 0
if let app = UIApplication.shared.delegate as? AppDelegate, let window = app.window {
let width = window.frame.width - 150
self.menuView.frame = CGRect(x: -width, y: 0, width: 0, height: window.frame.height)
}
}) { (completed: Bool) in
//THIS IS WHERE I CALL MY FUNCTION TO SET UP THE SELECTIONCONTROLLER
self.homeController?.displayController(menuOption: menuOption)
}
}
override init(frame: CGRect) {
super.init(frame: frame)
self.collectionView.delegate = self
self.collectionView.dataSource = self
collectionView.register(MenuCell.self, forCellWithReuseIdentifier: cellId)
setUpView()
setUpCollectionView()
}
选择选项后(以索引路径的形式)，并且菜单动画完成后。我在 HomeController 中调用我的函数 displayController 并设置新 Controller 。
我如何实现一个 View ？如果我选择了“Settings”，我怎样才能让selectionController也显示SettingsView？
最佳答案
您可以向现有 View 添加 subview :
//The container view can be in the vc with constraints already setup.
//Or you can use the vc's default view.
enum MyView: Int { case settingsView = 0, otherView }
//Add view
let view = UIView(frame: containerView.bounds)
view.tag = MyView.settingsView.rawValue
containerView.addSubview(view)
//Remove view
if let remove = containerView.viewWithTag(MyView.settingsView.rawValue) {
remove.removeFromSuperview()
}
关于ios - 根据选择的选项以不同的 View 呈现 View Controller : Swift 4，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/50473686/