ios - 如何同时关闭并弹出到 View Controller

Question

我的主视图 Controller 是Tabbarcontroller

• 从选项卡栏导航到 (A) Viewcontroller (TabarViewcontroller -> A( View Controller )
• 从 A(Viewcontroller)我推送(B)Viewcontroller
• 来自 B(Viewcontroller)我现在(C)Viewcontroller
• 当我关闭 (c) Viewcontroller 时，我想显示 (A) Viewcontroller 或(主页)TabbarviewController

所以，我想首先关闭呈现的 View Controller ，然后弹出我之前推送的 Controller

这是我的导航流程

From Tabbarviewcontroller 
1-  let aVC = self.storyboard?.instantiateViewController(withIdentifier: "a") as! OrderListingViewController
     self.navigationController?.pushViewController(aVC, animated: true)

From A viewcontroller 
2- let bVC = self.storyboard?.instantiateViewController(withIdentifier: "b") as! OrderListingViewController
     self.navigationController?.pushViewController(bVC, animated: true)

From B viewcontroller 
        let cVC = self.storyboard?.instantiateViewController(withIdentifier: "c") as! RejectOrderViewController
        cVC.providesPresentationContextTransitionStyle = true
        cVC.definesPresentationContext = true
        cVC.modalPresentationStyle=UIModalPresentationStyle.overCurrentContext
        self.tabBarController?.presentVC(cVC)

所以当我关闭时，从 C Viewcontroller 中我想显示 Tabbarviewcontroller 或 (A) ViewController

Answer 1

您必须忽略 ViewController C通过以下方式。

self.presentingViewController将给出前一个 View Controller 对象。

移动到 Root View Controller

  let presentingVC = self.presentingViewController
  self.dismiss(animated: true) { 
      presentingVC?.navigationController?.popToRootViewController(animated: false)
  }

移至上一个 Controller

如果您需要以前的 View Controller 而不是 Root View Controller ，那么您只需使用 popViewController

let presentingVC = self.presentingViewController
 self.dismiss(animated: true) {
      presentingVC?.navigationController?.popViewController(animated: false)
 }

移动到特定的 View Controller

    let presentingVC = self.presentingViewController
    self.dismiss(animated: true) {
            if let  destinationVC =  presentingVC?.navigationController?.viewControllers.filter({$0 is <Your Destination Class>}).first {
                presentingVC?.navigationController?.popToViewController(destinationVC, animated: false)
            }
        }

<Your Destination Class>替换为您的目标类名称。