ios - 将数据从 MainView 传递到 ContainerView

Question

我有这个 Storyboard:

和这段代码:

var actualVisibleView : String? = nil

func showSubViewInContainerView(view: String, parms: String?){
        let controller = storyboard!.instantiateViewController(withIdentifier: view)

        systemContainerView.subviews.forEach { $0.removeFromSuperview() }
        systemContainerView.addSubview(controller.view)

        if view == "ConceptGalleryView" {

        }

        addChildViewController(controller)
        controller.view.translatesAutoresizingMaskIntoConstraints = false

        systemContainerView.addSubview(controller.view)

        NSLayoutConstraint.activate([
            controller.view.leadingAnchor.constraint(equalTo: systemContainerView.leadingAnchor),
            controller.view.trailingAnchor.constraint(equalTo: systemContainerView.trailingAnchor),
            controller.view.topAnchor.constraint(equalTo: systemContainerView.topAnchor),
            controller.view.bottomAnchor.constraint(equalTo: systemContainerView.bottomAnchor)
            ])

        controller.didMove(toParentViewController: self)

        self.actualVisibleView = view
        print("OPEN: \(view)")
    }

在左侧菜单中，我使用以下代码在此 containerview 中打开各种 View :

showSubViewInContainerView(view: "View1", parms: "1")
showSubViewInContainerView(view: "View2", parms: "2")
showSubViewInContainerView(view: "View3", parms: "3")
showSubViewInContainerView(view: "View4", parms: nil)

例如，我调用了 ConceptGalleryView.swift:

var idGallery = 0

    override func viewDidLoad() {
        super.viewDidLoad()
    }

如何从 showSubViewInContainerView 函数保存 idGallery 参数 - parms？

Answer 1

将其传递到:ViewController 底部。

你必须创建公共(public)变量，这样你就可以从 View Controller 到另一个:

class variables
{
    static var name: String = ""
}

并打印出变量:

print("\(variables.name)")