如何使用 swift 将 UIVIewController 名称作为参数传递给特定函数?

Question

在我的场景中，我需要将UIVIewController名称和更多字符串值传递给特定function。我尝试了下面的代码，但没有得到结果。

将参数传递给特定函数

self.accountoptionscall(vcName: UIViewController(), vcIdentifier: "profileviewcontroller", popUpVC: ProfileViewController.self)
func accountoptionscall<T: UIViewController>(vcName: UIViewController,vcIdentifier: String, popUpVC: T.self) {
let viewcontrollers = self.storyboard!.instantiateViewController(withIdentifier: vcIdentifier) as! vcName
let navController = UINavigationController(rootViewController: viewcontrollers)
self.present(navController, animated:true, completion: nil)
}

Answer 1

我在我的应用程序中使用它，我认为它可以帮助你。

extension UIViewController {
/// Load UIViewController type from UIStoryboard
class func loadFromStoryboard<T: UIViewController>() -> T {
let name = String(describing: T.self)
let storybord = UIStoryboard(name: name, bundle: nil)
if let viewController = storybord.instantiateInitialViewController() as? T {
return viewController
} else {
fatalError("Error:  No initial view controller in (name) storyboard!")
}
}
}

以下是如何使用它：

func loadVC<T: UIViewController>(controller: T) {
let vc: T = T.loadFromStoryboard()
let navigationVC = UINavigationController(rootViewController: vc)
self.present(navController, animated:true, completion: nil)
// or if use in appDelegate you can do it: window?.rootViewController = navigationVC
}