iphone - 有没有办法找到 UICollectionView 部分的索引？

Question

有没有办法找到 UICollectionView 部分的索引？

我的 CollectionView 由主数组中包含的数组填充，我需要为该部分选择合适的数组。

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

    let collectionCell: ChecklistCollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier("collectionCell", forIndexPath: indexPath) as! ChecklistCollectionViewCell

    let section = //I need the index of the current section here!

    let sectionArray = allCards[section]

    collectionCell.imageCell.image = UIImage(named: sectionArray[indexPath.row])

    return collectionCell

}

与此处的操作方式类似:

func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

    let sectionArray = allCards[section]
    return sectionArray.count

}

Answer 1

let section = allCards[indexPath.section]