ios - popToRootViewController 然后 pushViewController

Question

我正在尝试编写一段代码，它将弹出到 Root View Controller ，然后将推送另一个 View Controller ，到目前为止我有这个:

self.navigationController?.popToRootViewController(animated: true)

let viewController = self.storyboard?.instantiateViewController(withIdentifier: "Posts") as! PostsController

self.navigationController?.pushViewController(viewController, animated: true)

导航 Controller 将转到 Root View Controller ，但它不会推送另一个 View Controller ，我得到这是我的控制台日志:

Presenting view controllers on detached view controllers is discouraged

我想做的事情是不可能的吗？

Answer 1

试试这个-

if let navCont = navigationController {
    var controllers = navCont.viewControllers
    controllers.removeLast()
    let viewController = self.storyboard?.instantiateViewController(withIdentifier: "Posts") as! PostsController
    controllers.append(viewController)
    navCont.setViewControllers(controllers, animated: true)
}