ios - 配置具有相同单元格类型但不同 UI 样式的 UICollectionView 单元格

Question

我有一个具有相同单元格类型的 UICollectionView，但每个单元格都有不同的 UI 属性，例如 background color、textColor ...

我可以在 collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell 中配置它们，如下所示:

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

    let item = indexPath.item
    switch item {
    case 1:
        let cell = collectionView.dequeueReusableCell(forIndexPath: indexPath) as ACollectionViewCell
        cell.ScoreName.text = xxx
        cell.ScoreName.textColor = xxx
        cell.score.text = xxx
        cell.score.backgroundColor = xxx
        cell.....

        return cell
    case 2: ...
    case 3: ...
    case 4: ...
    case 5: ...
    case 6:
        let cell = collectionView.dequeueReusableCell(forIndexPath: indexPath) as BCollectionViewCell
        cell.title.text = "xxx xxx"
        cell.score.isHidden = true
        return cell
    default:

        let cell = collectionView.dequeueReusableCell(forIndexPath: indexPath) as DCollectionViewCell
        cell.title.text = "xxx"
        cell.score.text = "xx"
        cell.score.backgroundColor = .green
        cell....
        return cell
    }
}

正如您从案例 1 到案例 5 中看到的具有不同 UI 属性的相同单元格类型，它根本没有吸引力，也不可扩展，那么处理此类配置的最佳方法是什么？

Answer 1

您需要将数据保存在内存中，因此由于 UICollectionViewCell 的可重用特性，您必须存储单元格的配置。

let dictForCell = ["color":UIColor.redColor(),"isHidden":false] //add key value according to your need
let arrOfCell   = [dictForCell] //also add dictionary of detail

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let dictData = [indexPath.row]
        let cell = collectionView.dequeueReusableCell(forIndexPath: indexPath) as ACollectionViewCell  
        cell.ScoreName.textColor = dictData["color"] as! UIColor
        cell.score.isHidden = dictData["color"] as! Bool        
        cell.score.text = xxx
        cell.score.backgroundColor = xxx
        cell.ScoreName.text = xxx
        return cell
    }