CollectionView添加额外的单元格"添加更多"

Question

我有一个问题是在我的集合视图中添加额外的单元格我已经更改了逻辑以使用数据模型来填充我的单元格

 func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return pictures.count + 1
    }


    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

        let cell = collectionView.dequeueReusableCellWithReuseIdentifier("images", forIndexPath: indexPath) as! ProfileImageCell

        let picture = pictures[indexPath.item] as! Gallery

        print(indexPath.item)

        if indexPath.item == pictures.count {
            cell.image.image = UIImage(named: "ProfilePlusImage")
        } else {
            cell.image.sd_setImageWithURL(NSURL(string: picture.fileUrl), placeholderImage: UIImage(named: "Placeholder"))
            cell.imageId = picture.id.integerValue
        }

        return cell
    }

我想这个问题就在这一行

让picture = pictures [indexPath.item]为!画廊

当我标记并标记时

cell.image.sd_setImageWithURL(NSURL(string:picture.fileUrl),placeholderImage:UIImage(named:"placeholder"))

它在第11位增加了额外的细胞.但是其他方式让我超越了界限

谁能帮助我？

Answer 1

func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

    let cell = collectionView.dequeueReusableCellWithReuseIdentifier("images", forIndexPath: indexPath) as! ProfileImageCell

    print(indexPath.item)

    if indexPath.item == pictures.count {
        cell.image.image = UIImage(named: "ProfilePlusImage")
    } else {
        let picture = pictures[indexPath.item] as! Gallery

        cell.image.sd_setImageWithURL(NSURL(string: picture.fileUrl), placeholderImage: UIImage(named: "Placeholder"))
        cell.imageId = picture.id.integerValue
    }

    return cell
}