Class

UICollectionViewPlaceholder

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

Declaration

class UICollectionViewPlaceholder : NSObject

Topics

Initializing a Placeholder

init(insertionIndexPath: IndexPath, reuseIdentifier: String)

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

Updating the Cell's Content

var cellUpdateHandler: ((UICollectionViewCell) -> Void)?

The block that updates the contents of the placeholder cell.

Relationships

Inherits From

Conforms To

See Also

Drag and Drop

Supporting Drag and Drop in Collection Views

Initiate drags and handle drops from a collection view.

protocol UICollectionViewDragDelegate

The interface for initiating drags from a collection view.

protocol UICollectionViewDropDelegate

The interface for handling drops in a collection view.

protocol UICollectionViewDropCoordinator

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

class UICollectionViewDropPlaceholder

A placeholder for an item dropped on a collection view.

class UICollectionViewDropProposal

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

protocol UICollectionViewDropItem

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

protocol UICollectionViewDropPlaceholderContext

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

protocol UIDataSourceTranslating

An advanced interface for managing a data source object.