UICollectionView current visible cell index

Question

I am using UICollectionView first time in my iPad application. I have set UICollectionView such that its size and cell size is same, means only onc

Answer 1

It will probably be best to use UICollectionViewDelegate methods: (Swift 3)

// Called before the cell is displayed    
func collectionView(_ collectionView: UICollectionView, willDisplay cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
    print(indexPath.row)
}

// Called when the cell is displayed
func collectionView(_ collectionView: UICollectionView, didEndDisplaying cell: UICollectionViewCell, forItemAt indexPath: IndexPath) {
    print(indexPath.row)
}