ios - Swift iOS - 如何正确使用 popToViewController

Question

又是我——学得很快。 问题很简单，我有这样的控制 View : [初始]->[未记录]->[注册] 现在注册后我被双重解雇了，这真的很难看! 我不想直接从注册进入初始页面。 我尝试了这段代码，但遗憾的是它关闭了应用程序，没有任何错误。

self.dismiss(animated: true, completion: {
                let controllers = self.navigationController?.viewControllers
                 for vc in controllers! {
                   if vc is InitialViewController {
                     _ = self.navigationController?.popToViewController(vc as! InitialViewController, animated: true)
                   }
                }
            } )

pushViewController 的工作方式与上面相同，有输出:

2020-01-29 20:30:38.342180+0100 BillyBill[44355:19540995] Can't end BackgroundTask: no background task exists with identifier 10 (0xa), or it may have already been ended. Break in UIApplicationEndBackgroundTaskError() to debug.

Answer 1

只需弹出到 Root View Controller

self.navigationController?.popToRootViewController(animated: true)