IGListCollectionViewDelegateLayout

@protocol
    IGListCollectionViewDelegateLayout <UICollectionViewDelegateFlowLayout>

Conform to IGListCollectionViewDelegateLayout to provide customized layout information for a collection view.

  • Asks the delegate to customize and return the starting layout information for an item being inserted into the collection view.

    Declaration

    Objective-C

    - (UICollectionViewLayoutAttributes *)collectionView:
                                              (UICollectionView *)collectionView
                                                  layout:(UICollectionViewLayout *)
                                                             collectionViewLayout
                       customizedInitialLayoutAttributes:
                           (UICollectionViewLayoutAttributes *)attributes
                                             atIndexPath:(NSIndexPath *)indexPath;

    Swift

    func collectionView(_ collectionView: UICollectionView!, layout collectionViewLayout: UICollectionViewLayout!, customizedInitialLayoutAttributes attributes: UICollectionViewLayoutAttributes!, at indexPath: IndexPath!) -> UICollectionViewLayoutAttributes!

    Parameters

    collectionView

    The collection view to perform the transition on.

    collectionViewLayout

    The layout to use with the collection view.

    attributes

    The starting layout information for an item being inserted into the collection view.

    indexPath

    The index path of the item being inserted.

  • Asks the delegate to customize and return the final layout information for an item that is about to be removed from the collection view.

    Declaration

    Objective-C

    - (UICollectionViewLayoutAttributes *)
                         collectionView:(UICollectionView *)collectionView
                                 layout:
                                     (UICollectionViewLayout *)collectionViewLayout
        customizedFinalLayoutAttributes:
            (UICollectionViewLayoutAttributes *)attributes
                            atIndexPath:(NSIndexPath *)indexPath;

    Swift

    func collectionView(_ collectionView: UICollectionView!, layout collectionViewLayout: UICollectionViewLayout!, customizedFinalLayoutAttributes attributes: UICollectionViewLayoutAttributes!, at indexPath: IndexPath!) -> UICollectionViewLayoutAttributes!

    Parameters

    collectionView

    The collection view to perform the transition on.

    collectionViewLayout

    The layout to use with the collection view.

    attributes

    The final layout information for an item that is about to be removed from the collection view.

    indexPath

    The index path of the item being deleted.