ios - 添加新的 Viewcontroller 的 View 作为 subview

Question

我正在尝试以下操作，但未能添加新的 viewcontrollers View 。它是呈现 View Controller 的唯一方法吗？我们不能从其他 Storyboard View Controller View 中添加 View 吗？

  //Working
    let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "customView") as! CustomViewController

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

    //Not working
    let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "customView") as! CustomViewController
    vc.view.frame = self.view.frame
    self.view.addSubview(vc.view)

Answer 1

您还需要在当前 Controller 中添加 CustomViewController 作为 ChildViewController。

let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "customView") as! CustomViewController
vc.view.frame = self.view.bounds
self.addChildViewController(vc)
self.view.addSubview(vc.view)
vc.didMove(toParentViewController: self) //OR  vc.willMove(toParentViewController: self)