如何在不在同一个故事板上的视图控制器之间以编程方式切换？

Question

I am trying to switch between a view controller (that is coded programmatically) to a ViewController with the UI Elements on the storyboard.

I am trying to switch between a HomeController to a TabBarController using a button but by pressing the button it switches to a dark screen. I would be glad if some of you could help me out.

Here is my code:

var welcomeLabel: UIButton = {

let label = UIButton()

label.tintColor = .white

label.translatesAutoresizingMaskIntoConstraints = false

label.alpha = 0

label.addTarget(self, action: #selector(handleLogin), for: .touchUpInside)

return label

}()

...............

@objc func handleLogin() {

navigationController?.show(TabBarController(), sender: Any?.self)

}

Answer 1

如果您从NavigationController推送视图，请使用此代码

navigationController?.pushViewController("YourViewController", animated: true)

Answer 2

You can do it in following way

let storyboard = UIStoryboard(name: "Your_storyboard", bundle: nil)
let viewController = storyboard.instantiateViewController(withIdentifier: "Your_View_controller") as! Your_View_controller

Now to present

self.present(viewController, animated: true, completion: nil)

Or through navigation controller

navigationController?.pushViewController(viewController, animated: true)

Answer 3

You can try this -

    let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil) // Give the name .e.g if you have the different story board name
    let YourNextViewController = storyBoard.instantiateViewController(withIdentifier: "your story board identifier") as! StoryBoardName/ClassName
    self.navigationController?.pushViewController(YourNextViewController, animated: true)
   //Or if you want to present viewController
    self.present(YourNextViewController, animated:true, completion:nil)