问题描述
在我的应用程序 UICollection 中水平滚动。设计了 collection-view cell 两个按钮和一个 UIView。
每个单元格加载两个按钮。当用户单击一个按钮时，应重新加载特定单元格，并且 UIView 将显示在该单元格中，只有其他单元格不显示。
这里我附上了collectionview图片：
这是我的代码：
@IBOutlet weak var dataCollectionView: UICollectionView!
var addindexArray:[Int] = []
var arraySelectedFilterIndex = [IndexPath]()
self.listArr = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t"]
override func viewDidLoad() {
super.viewDidLoad()
self.dataCollectionView.reloadData()
}
func collectionView(_ collectionView: UICollectionView,numberOfItemsInSection section: Int) -> Int {
return (lvsnListArr.count/2)
}
func collectionView(_ collectionView: UICollectionView,cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = dataCollectionView.dequeueReusableCell(withReuseIdentifier: reuseIdentifier_CollectionView,for: indexPath as IndexPath) as! DataCell
if self.arraySelectedFilterIndex.contains(indexPath) {
cell.buttonView.isHidden = false
}else{
cell.buttonView.isHidden = true
}
cell.btn1.setTitle(lvsnListArr[2 * indexPath.row],for: .normal)
cell.btn1.tag = indexPath.row
cell.btn1.addTarget(self,action: #selector(btnpressed(sender:)),for: .touchUpInside)
cell.btn2.setTitle(lvsnListArr[2 * indexPath.row + 1],for: .normal)
cell.btn2.tag = indexPath.row
cell.btn2.addTarget(self,action: #selector(btn2pressed(sender:)),for: .touchUpInside)
return cell
}
@objc func btnpressed(sender: UIButton) {
self.addindexArray.append(sender.tag)
let hitPoint = sender.convert(CGPoint.zero,to: dataCollectionView)
if let indexPath = dataCollectionView.indexPathForItem(at: hitPoint) {
print("indexPath--->",indexPath)
self.arraySelectedFilterIndex.append(getIndexPath)
self.dataCollectionView.reloadItems(at: [getIndexPath])
}
}
@objc func btn2pressed(sender: UIButton) {
self.addindexArray.append(sender.tag)
let hitPoint = sender.convert(CGPoint.zero,to: dataCollectionView)
if let indexPath = dataCollectionView.indexPathForItem(at: hitPoint) {
print("indexPath--->",indexPath)
self.arraySelectedFilterIndex.append(getIndexPath)
self.dataCollectionView.reloadItems(at: [getIndexPath])
}
}
我的错误：
我点击了单元格 btn1 一个动作 btnpressed 单个单元格过载并显示下一个单元格图像，两个图像在集合视图中重叠。
这里附上了我的问题单元格图片。
这里我得到了单元格索引路径和索引路径.row，我如何在单元格中验证和修复这个问题。在这一点上挣扎。
Kinldy 帮助解决这个问题。提前致谢。
解决方法
您可以像在按钮操作中一样重新加载单个单元格
self.dataCollectionView.reloadItems(at: [getIndexPath])
或
您可以在按钮操作中获取单元格，如下所示
if let cell = self.dataCollectionView.cellForItem(at: indexPath) as? DataCell
{
//Here you can write your view hide show code
if self.arraySelectedFilterIndex.contains(indexPath)
{
cell.buttonView.isHidden = false
}
else
{
cell.buttonView.isHidden = true
}
}