首先，我是 swift 的新手，所以要温柔。我在获取单元格外部单元格的 indexPath 时遇到问题。我想获取函数的索引路径并使用它将内容发送到另一个 View 。该图像是在单元格中以编程方式创建的，它有一个点击手势识别器发送到此函数(其中“myIndex”定义为 Int : var myIndex = 0):

// tap image to go at the indexpath of the user
func imageTapped(tapGestureRecognizer: UITapGestureRecognizer) {
   print("image tapped")

    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let secondViewController = storyboard.instantiateViewController(withIdentifier: "patientProfile") as! PatientProfileVC
    secondViewController.userID = posts[myIndex].userID
    secondViewController.patientName = posts[myIndex].author

    print("Passed data to the other view")

    self.show(secondViewController, sender: self)


}

我知道我可以在 IndexPath 上使用 didSelectItem，我也有 myIndex 的声明，但我有一些东西会从那里的 segue 触发:

//standard functon for item selected
override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {

    //get the index of the cell
    myIndex = indexPath.row

    print("Cell is selected")

    //perform the segue
    self.performSegue(withIdentifier: "CommentsVC", sender: self)
    print(myIndex)

}

我对 segue 的处理看起来像这样:` override

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

    print("Segue Initiated")
    feed.navigationItem.title = nil

    //if segue.destination is CommentsFullVC{
        print("Comments segue initiated")
        let secondViewController = segue.destination as! CommentsFullVC
        secondViewController.questionData = posts[myIndex].postContent
        secondViewController.authorName = posts[myIndex].author
        secondViewController.date = posts[myIndex].normalDate
        secondViewController.profileImagePath = posts[myIndex].pathToImage
        secondViewController.typeOfClinic = posts[myIndex].clinic
        secondViewController.postID = posts[myIndex].postID
        secondViewController.followersForPost = posts[myIndex].followers

}

所以我的问题是，如何在不使用 prepareForSegue 的情况下将这 2 个字段传递给另一个 View ？我现在为此苦苦挣扎了 20 个小时，但仍然无法弄清楚。

secondViewController.userID = posts[myIndex].userID
secondViewController.patientName = posts[myIndex].author

更新:多亏了 Jose 的回答，它才开始工作，现在它看起来像这样......以防有人遇到和我一样的问题。

 // tap image to go at the indexpath of the user
func imageTapped(tapGestureRecognizer: UITapGestureRecognizer) {
   print("image tapped")


    let pointInCollectionView = tapGestureRecognizer.location(in: collectionView)
    let indexPath = collectionView?.indexPathForItem(at: pointInCollectionView)
    print(indexPath!)

    // this one works - show segue
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
    let secondViewController = storyboard.instantiateViewController(withIdentifier: "patientProfile") as! PatientProfileVC
    secondViewController.userID = posts[(indexPath?.row)!].userID
    secondViewController.patientName = posts[(indexPath?.row)!].author

    print("Passed data to the other view")

    self.show(secondViewController, sender: self)


}

最佳答案

获取 tapGestureRecognizer 在 collectionView 中的位置，然后获取给定位置的 indexPath

let pointInCollectionView = tapGestureRecognizer.location(in: collectionView)
let indexPath = collectionView.indexPathForItem(at: pointInCollectionView)

关于ios - 在 Cell 外获取 CollectionViewCell 的 IndexPath，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44344480/