Ios 如何在集合视图单元格内为视图添加手势？

我正在集合视图单元格（也有其他视图）中添加一个视图，其中包含一组

图像（socialView）

，必须在该单元格上执行公共单击。此单击不应与集合视图单元格单击相同

我正在考虑每次在

CollectionView

委托方法

cellForItemAt

中为

socialView

添加

uitappesturerecognizer

。但我想知道这是正确的方法吗？此外，我想获取调用了

socialView

的indexPath/位置

let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.socialViewTapped))

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
     let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "bidderAuctionCell", for: indexPath) as! BidderAuctionViewCell
     cell.socialView.addGestureRecognizer(tapGestureRecognizer)
}

@objc func socialViewTapped() {
     // Which item cell's socialview is clicked
}

更新

我已按照以下建议进行了操作，但我无法在自定义单元格中找到应在何处添加UITapGestureRecognizer。下面是我创建的自定义单元格

class CustomViewCell: UICollectionViewCell {

    var index : IndexPath!
    var socialViewDelegate : SocialViewDelegate!

    @IBOutlet weak var socialView: UIView!

    override init(frame: CGRect) {
        super.init(frame:frame)
        let tapGestureRecognizer = UITapGestureRecognizer(target: self, action:   #selector(self.viewTapped))
        socialView.addGestureRecognizer(tapGestureRecognizer)
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder:aDecoder)
    }

    @objc func viewTapped(){
        socialViewDelegate.socialViewTapped(at: index)
    }
}

未调用init函数。我还尝试输入required init，但是那里的社会视图没有初始化。所以被撞坏了

最终答案

class CustomViewCell: UICollectionViewCell {

    var index : IndexPath!
    var socialViewDelegate : SocialViewDelegate!

    @IBOutlet weak var socialView: UIView!

    override func awakeFromNib() {
        let tapGesture = UITapGestureRecognizer(target: self, action: #selector(handleTap))
        socialView.isUserInteractionEnabled = true
        socialView.addGestureRecognizer(tapGesture)
    }

    @objc func handleTap(){
        socialViewDelegate.socialViewTapped(at: index)
    }
}
protocol SocialViewDelegate {
    func socialViewTapped(at index: IndexPath)
}

---

要添加点击手势，请将以下代码添加到集合视图的单元格中

let tapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(self.socialViewTapped))
socialView?.addGestureRecognizer(tapGestureRecognizer)
socialView?.isUserInteractionEnabled = true

---

将此代码添加到集合视图单元格。

@Anurag您可以使用以下概念之一解决此问题：委派、闭包、通知。我建议您使用iOS广泛遵循的委托模式，将其应用到UITableView、UICollectionView等组件中

• 在实现委派模式之前，向视图中添加轻触手势识别器。
• 在CollectionViewCell中声明一个协议方法以委派点击/操作
• 确认视图控制器中的代理实现。
• 在视图控制器中实施委托方法。

编码示例：

1。您的CollectionViewCell应如下所示：

   import UIKit

    Protocol ViewTappedDelegate: class {
     func viewTapped(_ photo : String) { }
   }

    class YourCell: UICollectionViewCell, UIGestureRecognizerDelegate {

        @IBOutlet weak var containerView: UIView!
        weak var delegate : ViewTappedDelegate?

        override func awakeFromNib() {
            let tapGesture = UITapGestureRecognizer(target: self,
                                                    action: #selector(handleTap(recognizer:)))
            tapGesture.delegate = self
            containerView.isUserInteractionEnabled = true
            containerView.addGestureRecognizer(tapGesture)
        }

        @objc func handleTap(recognizer:UITapGestureRecognizer) {
            //Call Delegate method from here...
        }

    }

2。在ViewController中

        func collectionView(_ collectionView: UICollectionView,
                    cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {


               let cell =  collectionView.dequeueReusableCell(withReuseIdentifier: "cellIdentifier",
                                                  for: indexPath) as! YourCell

              cell.delegate = self
              return cell
          }



    // MARK: Delegate
     extension YourViewController : ViewTappedDelegate {
        func viewTapped(_ photo : String) {
          // Handle delegation here...
        }
    }

---

如果你还没有找到办法，我希望这能奏效 在自定义单元格中使用这样的协议

import UIKit

protocol CustomDelegate {
    func showData(indexPath: IndexPath?)
}

class CustomCell: UICollectionViewCell {

// properties

var delegate: CustomDelegate?
var selectedAtIndex: IndexPath?

// outlets

override func awakeFromNib() {
    super.awakeFromNib()
    myView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(dothis)))
}

@objc func dothis(){
    delegate?.showData(indexPath: selectedAtIndex)
}

@IBOutlet weak var myView: UIView!
}

class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, CustomDelegate{
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! CustomCell
    cell.delegate = self
    cell.selectedAtIndex = indexPath
    return cell
}
func showData(indexPath: IndexPath?) {
    if let ip = indexPath{
            print("\(ip) is the index path for tapped view")
    }
}
}

像这样编写视图控制器

import UIKit

protocol CustomDelegate {
    func showData(indexPath: IndexPath?)
}

class CustomCell: UICollectionViewCell {

// properties

var delegate: CustomDelegate?
var selectedAtIndex: IndexPath?

// outlets

override func awakeFromNib() {
    super.awakeFromNib()
    myView.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(dothis)))
}

@objc func dothis(){
    delegate?.showData(indexPath: selectedAtIndex)
}

@IBOutlet weak var myView: UIView!
}

class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, CustomDelegate{
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! CustomCell
    cell.delegate = self
    cell.selectedAtIndex = indexPath
    return cell
}
func showData(indexPath: IndexPath?) {
    if let ip = indexPath{
            print("\(ip) is the index path for tapped view")
    }
}
}

---

请告诉我这是否有帮助

@RobertDresler添加了代码。请check@JarvisTheAvenger我已经更新了代码，无法在自定义类中添加手势。您可以通过将indexPath传递给自定义类来解决此问题。并将点击的内容委托给您的ViewController您是否已将该类添加到cell的XIB？您尚未将UIgestureRecognitizerDelegate添加到自定义类这是任何视图的通用解决方案，您能否告诉我如何获取已单击社交视图的indexPath.row。我添加了代码基本思想是将此代码添加到您创建的cell类中，因此将有一个不同的cell对象。如果需要indexPath，可以在单元格中创建一个变量，并在cellForRow at方法中设置它。现在可以检查吗@让我们在cell类中创建Override awakeFromNib方法，并在其中添加点击手势。谢谢，它成功了。但您不需要添加tappostate.delegate=self。只是我必须用awakeFromNib编写代码。不过非常感谢。