ios - 如何知道在 UICollectionView 中点击了自定义单元格的哪一部分？

Question

我正在通过 swift 做一个项目。我定义了一个 Collection View 并自定义了它的单元格，使其看起来像向下的图像。现在，一旦我单击该单元格，我的函数将告诉我我单击了哪个单元格，但我想获得更详细的信息，例如我在单元格编号 2 中获取图片。为此，我试图定义一个点击手势，但它似乎不起作用？这是我所有的代码:

导入 UIKit导入 AVFoundation导入 AVKit

class ViewUSRController: UIViewController , UICollectionViewDelegate , UICollectionViewDataSource  {

    @IBOutlet var collectionView: UICollectionView!
    var cell : MyCollectionViewCell?

    var names = ["Danial" , "dkfloza" , "Kosarifar" , "IOS" , "Learning", "sina" ]
    var likes = ["23" , "7" , "17" , "100K" , "1000K" , "100"]

    var dislikes = ["0","0","0","0","0","0"]





    var playerViewController = AVPlayerViewController()
    var playerView = AVPlayer()


 override func viewDidLoad() {
        super.viewDidLoad()

        view.backgroundColor = .black
        self.collectionView.delegate = self




        let tap = UITapGestureRecognizer(target: self.cell?.myLabel, action:#selector(handleTap))
        tap.numberOfTapsRequired =  1
        cell?.myLabel.addGestureRecognizer(tap)

    }

    public func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int{

        return self.names.count
    }


    public func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell{
         cell = collectionView.dequeueReusableCell(withReuseIdentifier: "id", for: indexPath as IndexPath) as! MyCollectionViewCell

        // Use the outlet in our custom class to get a reference to the UILabel in the cell
        cell?.myLabel?.text = self.names[indexPath.row]
        cell?.myLabel?.textColor = .black
        cell?.likes_num?.text = likes[indexPath.row]
        cell?.dislike_num?.text = dislikes[indexPath.row]
        cell?.likes_num?.textColor = .black
        cell?.dislike_num?.textColor = .black


        return cell!

    }






//    
//    
//    func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
//        // handle tap events
//        print("You selected cell #\(indexPath.item)!")
//        
//        
//        
//        
//    }


    func handleTap(){
        print("hello")
    }







}






class MyCollectionViewCell : UICollectionViewCell{
    //appClub
    @IBOutlet var myLabel: UILabel!
    //imagePlace
    @IBOutlet var viewTesting: UIView!
    //likes
    @IBOutlet var likes_num: UILabel!
    //dislikes
    @IBOutlet var dislike_num: UILabel!











}

Answer 1

-> 向表格 View 添加手势

override func viewDidLoad() {
        super.viewDidLoad()

        let tap = UITapGestureRecognizer(target: self, action: #selector(handleTap))
        tap.delegate = self
        tap.numberOfTapsRequired = 1
        tap.numberOfTouchesRequired = 1
        tableView.addGestureRecognizer(tap)
    }

-> 检测点击

func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
    let tableView = gestureRecognizer.view as! UITableView
    let point: CGPoint = gestureRecognizer.location(in: tableView)
    if (tableView.indexPathForRow(at: point) != nil) {
        return true;
    }
    return false;
}

-> 在单元格中找到位置，并通过给 subview View (例如 imageView、标签)添加标签，您也可以获得准确的 View 。

public func handleTap(tap: UITapGestureRecognizer)
{
    if (UIGestureRecognizerState.ended == tap.state) {
        let tableView = tap.view as! UITableView
        let point: CGPoint = tap.location(in: tableView)
        let indexPath = tableView.indexPathForRow(at: point)
        tableView.deselectRow(at: indexPath!, animated: false)
        let cell = tableView.cellForRow(at:indexPath!)
        let pointInCell = tap.location(in: cell)
        if ((cell?.imageView?.frame)!.contains(pointInCell)) {
            // user tapped image
        } else {
            // user tapped cell
        }
    }
}