swift 关闭模态并推送到新的 VC

Question

我有 table视图... 1 table 显示新模态 window 当我按下按钮时我想关闭模态 window 并按下至 VC。我的代码只隐藏模态视图但没有推送。

    @IBAction func registrationBtn(sender: AnyObject) {

    let openNewVC = self.storyboard?.instantiateViewControllerWithIdentifier("registrationVcID") as! RegistrationVC

    self.dismissViewControllerAnimated(false, completion: { () -> Void   in
         self.navigationController?.pushViewController(openNewVC, animated: true)

            })
}

Answer 1

self.navigationController 不会在该完成块内执行任何操作，因为它已被关闭。

而是创建一个委托，您在关闭当前视图控制器时在父视图控制器上调用该委托。

protocol PushViewControllerDelegate: class {
    func pushViewController(vc: UIViewController)
}

然后在结束时 VC 您可以存储委托并在完成块中调用它。

weak var delegate: PushViewControllerDelegate?

self.dismissViewControllerAnimated(false, completion: { () -> Void   in

    let openNewVC = self.storyboard?.instantiateViewControllerWithIdentifier("registrationVcID") as! RegistrationVC
    self.delegate?.pushViewController(openNewVC)
}

并在您的呈现视图控制器

中实现

//declaration
class OneController: UIViewController, PushViewControllerDelegate

//show modal
let twoController = TwoController()
twoController.delegate = self
self.presentViewController(twoController, animated:true)

//MARK: PushViewControllerDelegate

func pushViewController(vc: UIViewController) {
    self.navigationController?.push(vc, animated:true)
}

Answer 2

你应该创建一个协议

protocol View1Delegate: class {
    func dismissViewController(controller: UIViewController)
}

当您点击注册按钮时，会将委托回调回 TableView。 TableViewController 应该实现：

  func dismissViewController(controller: UIViewController) {
    controller.dismissViewControllerAnimated(true) { () -> Void in
        //Perform segue or push some view with your code

    }
}

你可以在这里做任何事情。推你想要的屏幕。详细实现可以看我的demo：Demo Push View in Swift

Answer 3

更新了 Swift 3 和 4

的语法

正在关闭视图控制器

self.dismiss(animated: true, completion: nil)

或者，如果您想在完成块中执行某些操作（在关闭视图后），您可以使用...

self.dismiss(animated: true, completion: {
            // Your code here
        })

swift 关闭模态并推送到新的 VC

swift dismiss modal and push to new VC

swift

swift2

push

ios9

modalviewcontroller