CollectionView Dynamic cell height swift

Question

Im trying to create a collection view with cells displaying string with variable length.

Im using this function to set cell layout:

 func collectionV         


        

Answer 1

You can dynamically set the frame of the cell in the cellForItemAtIndexPath function, so you can customize the height based on a label if you disregard the sizeForItemAtIndexPath function. With customizing the size, you'll probably have to look into collection view layout flow, but hopefully this points you in the right direction. It may look something like this:

class CollectionViewController: UICollectionViewController, UICollectionViewDelegate, UICollectionViewDataSource, UICollectionViewDelegateFlowLayout {

    var array = ["a","as","asd","asdf","asdfg","asdfgh","asdfghjk","asdfghjklas","asdfghjkl","asdghjklkjhgfdsa"]
    var heights = [10.0,20.0,30.0,40.0,50.0,60.0,70.0,80.0,90.0,100.0,110.0] as [CGFloat]

    override func viewDidLoad() {
        super.viewDidLoad()
    }


    override func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
        return 1
    }

    override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return array.count
    }

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

            let cell = collectionView.dequeueReusableCellWithReuseIdentifier("CellID", forIndexPath: indexPath) as Cell
            cell.textLabel.text = array[indexPath.row]
            cell.textLabel.sizeToFit()

            // Customize cell height
            cell.frame = CGRectMake(cell.frame.origin.x, cell.frame.origin.y, cell.frame.size.width, heights[indexPath.row])
            return cell
    }

    func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
        return CGSizeMake(64, 64)
    }
}

which gives dynamic heights like so