ios - 如何在 Swift 中向 Collection View Cell 添加删除按钮？

Question

现在我有一个使用按钮 Collection View 的滚动用户名列表。但我想为每一行添加重叠的删除按钮。它们需要附加到名称按钮并随它们滚动。

如何将这些按钮添加到我的 CollectionView 中？ (另外，出于显而易见的原因，我想跳过第一行的删除按钮)

当前代码:

  //Add the cells to collection
  func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
    let cell: UsernameCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath) as! UsernameCollectionViewCell
    cell.usernameLabel.text = userNames [indexPath.row]
    return cell
  }

  //Upon Selecting an item
  func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath) {

    if (indexPath.row == 0){
      self.performSegueWithIdentifier("newUserSegue", sender: self)
    }
    else {
      sendData(userNames[indexPath.row])
      self.dismissViewControllerAnimated(true, completion: nil)
    }

  }

Answer 1

成功了!方法如下:

1. 我在 Storyboard 的单元格中添加了一个按钮。
2. 将 socket 连接到 UICollectionViewCell 类。

3. 将 View Controller 代码编辑为:

   func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
   
     let cell: UsernameCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("Cell", forIndexPath: indexPath) as! UsernameCollectionViewCell
   
     cell.usernameLabel.text = userNames [indexPath.row]
   
     cell.deleteButton?.layer.setValue(indexPath.row, forKey: "index")
     cell.deleteButton?.addTarget(self, action: "deleteUser:", forControlEvents: UIControlEvents.TouchUpInside)
   
     // Remove the button from the first cell
     if (indexPath.row == 0){
       var close : UIButton = cell.viewWithTag(11) as! UIButton
       close.hidden = true
     }
   
     return cell
   }
   
   func deleteUser(sender:UIButton) {
   
     let i : Int = (sender.layer.valueForKey("index")) as! Int
     userNames.removeAtIndex(i)
     UserSelectCollection.reloadData()
   }
   

非常感谢 JigarM 在 GitHub 上提供的示例: https://github.com/JigarM/UICollectionView-Swift