find middle cell in a collection view and change its content

Question

My goal is to have full text in a middle cell and truncated text in other cells, but with change of middle cell this style should not change (means middle one full text and others truncated).

Presets: Infinite scroll in horizontally scrolling collection view with label in the cells.

I have 3 cells and they should look like this [ 1D ]---[ 1 Day ]---[ 1D ]

Answer 1

You can do something like this to find the middle cell:

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell:UICollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "CELL_ID", for: indexPath)

    let center = self.view.convert(collectionView.center, to: collectionView)
    let index = collectionView.indexPathForItem(at: center)

    if (indexPath == index) {
        // truncated text
    } else {
        // don't truncated text
    }

    return cell
}