将一些数据传回 Launcher View Controller

Question

我正在从主视图控制器调用 segue(sheet) 以打开第二个视图controller.I正在通过覆盖 prepareforsegue 函数

override func prepare(for segue: NSStoryboardSegue, sender: Any?) {
      if (segue.identifier == "segue") {
            //get a reference to the destination view controller
      let destinationVC:myview = segue.destinationController as! myview
            //set properties on the destination view controller
            destinationVC.fileArray=fileArray

        }
    }

我在第二个视图上执行一些操作 controller.I 需要将这个函数的结果传递给 parent/laucher 视图控制器一旦操作是 complete/preferably 当新的视图控制器是Close/Disposed.

我怎样才能做到这一点？

Answer 1

您何时返回运行功能：

if let presenter = presentingViewController as? YourFirstController {
    presenter.fileArray = fileArray
}
dismiss(animated: true, completion: nil)

将一些数据传回 Launcher View Controller

Passing Some Data Back to the Launcher View Controller

swift

macos

segue

nsviewcontroller