ios - 未从 Collection View 调用 prepareForSegue

Question

我在单个 View Controller 中实现多个 Collection View 。它工作正常。在 Collection View 中，当我调用 didSelect 方法时，我必须将 ID 传递给下一个 View Controller 。我使用了 prepareForSegue 但它没有调用。

这是代码:

func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
    if collectionView == self.FirstCollectionview
    {
    }
    else
    {
        let index : Int = indexPath.row
        let idvalues = info[index].category_id
        print("values",idvalues as Any)
        self.performSegue(withIdentifier: "DATA", sender: self)
    }
}

func prepareForsegue(segue: UIStoryboardSegue, sender: AnyObject) {
    if segue.identifier == "DATA" {
        let detailsview = segue.destination as? DetailsViewController
        detailsview?.id = sender as! String
        print("sendervalue",sender as Any)
    }else
    {
        print("not this ")
    }
} 

这是第二个 View Controller :

class DetailsViewController: UIViewController {
    var iddata : String = ""

    override func viewDidLoad() {
        super.viewDidLoad()

        print("IDValues",iddata as Any)
    }

IDValues 的值为空。如何将 id 传递给下一个 View Controller ？

Answer 1

方法签名不正确。它应该如下所示，

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {

}