我试图让“var Product”数组开始填充第一个 UICollectionViewcell“newCell”之后的单元格。 newCell 将始终以相同的方式出现并且始终存在。 ProductCell 可能有不同的名称和标签,并且可能并不总是存在。图像“产品”数组将继续增长,我当前可以看到第二个项目,但第一个图像被 newCell Collection View 单元格挡住。
var products: [itemCellContent] = {
var eggs = itemCellContent()
eggs.itemName = "Eggs"
eggs.itemImageName = "eggs"
eggs.Quantity = "1"
var Toast = itemCellContent()
Toast.itemName = "Bread"
Toast.itemImageName = "bread"
Toast.Quantity = "5"
return [eggs, Toast]
}()
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if indexPath.item == 0
{
let newCell = collectionView.dequeueReusableCell(withReuseIdentifier: addCellID, for: indexPath) as! addProductCell
print("Rounds corners")
return newCell
} else {
let productCell = collectionView.dequeueReusableCell(withReuseIdentifier: cellID, for: indexPath) as! productCellLayout
productCell.backgroundColor = UIColor.rgb(red: 252, green: 252, blue: 252) //off white blue color
productCell.layer.cornerRadius = 5
print("Rounds corners")
productCell.gItem = products[indexPath.item]
//collectionview.insertIems(at: indexPaths)
//Shadow
productCell.layer.shadowColor = UIColor.gray.cgColor
productCell.layer.shadowOffset = CGSize(width: 0, height: 3.0)
productCell.layer.shadowOpacity = 0.7
productCell.layer.shadowRadius = 2.0
productCell.layer.masksToBounds = false
productCell.layer.shadowPath = UIBezierPath(roundedRect: productCell.bounds, cornerRadius: productCell.contentView.layer.cornerRadius).cgPath;
return productCell
}
}
如果有人可以帮助我获取“var Product”数组,以将第二个单元格识别为可填充的第一个单元格,请告诉我我能做什么。
This is what I see when I run the code This is what I want to see,
谢谢!
最佳答案
好的,您需要做两件事才能实现这一目标。 首先,返回单元格数量比项目数量多一:
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if let _ = products {
return products!.count + 1
}
return 1
}
接下来,根据上面返回适当的单元格实例。
override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if indexPath.item == 0
{
let newCell = collectionView.dequeueReusableCell(withReuseIdentifier: addCellID, for: indexPath) as! addProductCell
print("Rounds corners")
return newCell
} else {
let productCell = collectionView.dequeueReusableCell(withReuseIdentifier: cellID, for: indexPath) as! productCellLayout
productCell.backgroundColor = UIColor.rgb(red: 252, green: 252, blue: 252) //off white blue color
productCell.layer.cornerRadius = 5
print("Rounds corners")
productCell.gItem = products[indexPath.item - 1] // Here's a difference than before
//collectionview.insertIems(at: indexPaths)
//Shadow
productCell.layer.shadowColor = UIColor.gray.cgColor
productCell.layer.shadowOffset = CGSize(width: 0, height: 3.0)
productCell.layer.shadowOpacity = 0.7
productCell.layer.shadowRadius = 2.0
productCell.layer.masksToBounds = false
productCell.layer.shadowPath = UIBezierPath(roundedRect: productCell.bounds, cornerRadius: productCell.contentView.layer.cornerRadius).cgPath;
return productCell
}
}
关于swift - 在 UICollectionView 中的第二个索引项处启动图像数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/51996675/