Class

UICollectionViewPlaceholder

A placeholder for an item dragged or dropped on a collection view.

Declaration

@interface UICollectionViewPlaceholder : NSObject

Topics

Initializing a Placeholder

- initWithInsertionIndexPath:reuseIdentifier:

Creates a placeholder object with the specified index path and reuse identifier.

Updating the Cell's Content

cellUpdateHandler

The block that updates the contents of the placeholder cell.

Relationships

Inherits From

See Also

Drag and Drop

Supporting Drag and Drop in Collection Views

Initiate drags and handle drops from a collection view.

UICollectionViewDragDelegate

The interface for initiating drags from a collection view.

UICollectionViewDropDelegate

The interface for handling drops in a collection view.

UICollectionViewDropCoordinator

An interface for coordinating your custom drop-related actions with the collection view.

UICollectionViewDropPlaceholder

A placeholder for an item dropped on a collection view.

UICollectionViewDropProposal

Your proposed solution for handling a drop in a collection view.

UICollectionViewDropItem

The data associated with an item being dropped into the collection view.

UICollectionViewDropPlaceholderContext

An object that contains information about a placeholder in the collection view.

UIDataSourceTranslating

An advanced interface for managing a data source object.