Question

我尝试使用两种类型的自定义集合视图单元格来实现以下行为，我们将其称为A和B：

我有一个带有2个选项，图像和音乐的分段控件。当我点击图像选项时，集合视图将通过使用自定义单元格A向我显示图像，当我点击音乐时，它将重新加载表格并通过使用自定义单元格B向我显示音乐。这通过使用相同的集合视图。

我的问题是我收到以下错误：

无法将类视图出列：UICollectionElementKindCell with 标识符PictureCell - 必须注册一个笔尖或类标识符或连接故事板中的原型单元＆＃39;

我目前的代码：

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        switch mySegmentedControl.selectedSegmentIndex
        {
        case 0:
            let nibPicture = UINib(nibName: "PictureCell", bundle: nil)
            myCollectionView.register(nibPicture, forCellWithReuseIdentifier: "Cell")
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for:indexPath) as! PictureCollectionViewCell
            let fruits: [MyItem] = dataSource.itemsInGroup(indexPath.section)
            let fruit = fruits[indexPath.row]

            let name = fruit.name!
            cell.fileImage.image = UIImage(named: name.lowercased())

            return cell
        case 1:
            let nibMusic = UINib(nibName: "MusicCell", bundle: nil)
            myCollectionView.register(nibMusic, forCellWithReuseIdentifier: "Cell")
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for:indexPath) as! MusicCollectionViewCell
            let fruits: [MyItem] = dataSource.itemsInGroup(indexPath.section)
            let fruit = fruits[indexPath.row]

            let name = fruit.name!
            cell.labelAuthor.text = name
            cell.labelMediaName.text = name
            return cell
        default:
            let nibPicture = UINib(nibName: "PictureCell", bundle: nil)
            myCollectionView.register(nibPicture, forCellWithReuseIdentifier: "Cell")
            let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for:indexPath) as! PictureCollectionViewCell
            let fruits: [MyItem] = dataSource.itemsInGroup(indexPath.section)
            let fruit = fruits[indexPath.row]

            let name = fruit.name!
            cell.fileImage.image = UIImage(named: name.lowercased())

            return cell
        }
    }

图像的初始加载效果很好但是当我更改为音乐时它会崩溃。以下是演示此问题的演示：Demo Link

使用分段控件重新加载具有两种类型自定义单元格的集合视图

0 个答案: