Prepareforsegue没有将适当的值传递给目标Viewcontroller？(Prepareforsegue not passing the appropriate value to destination Viewcontroller?)

 我有两个viewcontrollers（一个是tableVC），我想在其间传递信息。 这是tableVC的代码： 
 
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

        var rowSelected = indexPath.row
        print(rowSelected) //always returns the correct integer

        func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

            let destViewController: newController = segue.destination as! newController
            newController.rowSelected = rowSelected
        }

        performSegue(withIdentifier: "rowSelected", sender: Any?.self)//segue to newController

    }
 
 以下是我希望将信息传递给newController的代码： 
 
 @IBOutlet weak var label: UILabel!

var rowSelected = Int()
override func viewDidLoad() {
    super.viewDidLoad()

    label.text = infoArray[rowSelected]

    print(rowSelected) //always logs 0 to the console, regardless of cell selection

}
 
 我以为我已经适当地设置了它，但无论出于何种原因，无论在tableVC中选择了什么单元格，调用infoArray的索引始终为0。 不确定是什么问题。 

I have two viewcontrollers (one is tableVC) that I would like to pass information between. Here is code from that tableVC:
 
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {

        var rowSelected = indexPath.row
        print(rowSelected) //always returns the correct integer

        func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

            let destViewController: newController = segue.destination as! newController
            newController.rowSelected = rowSelected
        }

        performSegue(withIdentifier: "rowSelected", sender: Any?.self)//segue to newController

    }
 
And here is the code for the newController that I want the info to be passed to:
 
 @IBOutlet weak var label: UILabel!

var rowSelected = Int()
override func viewDidLoad() {
    super.viewDidLoad()

    label.text = infoArray[rowSelected]

    print(rowSelected) //always logs 0 to the console, regardless of cell selection

}
 
I thought I had set this up appropriately, but for whatever reason the index called to the infoArray is always 0, no matter what cell is selected in the tableVC. Not sure what the problem is.

原文：https://stackoverflow.com/questions/40582206