Collectionview cell height from label height swift

Question

I'm trying to create a collection view that can be resized automatically from label height. I have two different cell, one of them with photo another without photo and both in xib files.

I've tried different ways to make this height dynamic but no solution ((.

var CollectionViewCellNib = UINib(nibName: "CollectionViewCell", bundle: nil)
collectionView.registerNib(CollectionViewCellNib, forCellWithReuseIdentifier: "CollectionViewCell")
var CollectionViewCellWithPhotoNib = UINib(nibName: "CollectionViewCellWithPhoto", bundle: nil)
collectionView.registerNib(CollectionViewCellWithPhotoNib, forCellWithReuseIdentifier: "CollectionViewCell")

func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
        let pikirler = self.pikirler[indexPath.row]
        let targetWidth: CGFloat = (self.collectionView.bounds.width - 2 * kHorizontalInsets)

        if indexPath.row == 2 {
            var cell = self.offscreenCells[CollectionViewKeyWords.collectionViewOnlyTextCell] as? CollectionViewCell
            if cell == nil {
                cell = NSBundle.mainBundle().loadNibNamed("CollectionViewCell", owner: self, options: nil)[0] as? CollectionViewCell

                self.offscreenCells[CollectionViewKeyWords.collectionViewOnlyTextCell] = cell
            }
            cell!.configCell("sometext", content: "sometext")
            cell!.bounds = CGRectMake(0, 0, targetWidth, cell!.bounds.height)
            cell!.contentView.bounds = cell!.bounds
            cell!.setNeedsLayout()
            cell!.layoutIfNeeded()
            var size = cell!.contentView.systemLayoutSizeFittingSize(UILayoutFittingCompressedSize)
            size.width = targetWidth

            return size
        }else{
            var cell = self.offscreenCells[CollectionViewKeyWords.collectioViewWithPhotoCell] as? CollectionViewCellWithPhoto
            if cell == nil {
                cell = NSBundle.mainBundle().loadNibNamed("CollectionViewCellWithPhoto", owner: self, options: nil)[0] as? CollectionViewCellWithPhoto

                self.offscreenCells[CollectionViewKeyWords.collectioViewWithPhotoCell] = cell
            }
            cell!.configCell("Some text", content: "sometext")
            cell!.bounds = CGRectMake(0, 0, targetWidth, cell!.bounds.height)
            cell!.contentView.bounds = cell!.bounds
            cell!.setNeedsLayout()
            cell!.layoutIfNeeded()

            var size = cell!.contentView.systemLayoutSizeFittingSize(UILayoutFittingCompressedSize)
            size.width = targetWidth

            return size

        }

    }