Core

A collection view layout designed to display items in a grid similar to UITableView, while aligning them to the leading or trailing edge of the UICollectionView. This layout facilitates chat-like behavior by maintaining a constant content offset from the bottom. Additionally, it is capable of handling autosizing cells and supplementary views.

Custom Properties:

CollectionViewChatLayout.delegate

CollectionViewChatLayout.settings

CollectionViewChatLayout.keepContentOffsetAtBottomOnBatchUpdates

CollectionViewChatLayout.processOnlyVisibleItemsOnAnimatedBatchUpdates

CollectionViewChatLayout.visibleBounds

CollectionViewChatLayout.layoutFrame

Custom Methods:

CollectionViewChatLayout.getContentOffsetSnapshot(...)

CollectionViewChatLayout.restoreContentOffset(...)

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open class CollectionViewChatLayout : UICollectionViewLayout

CollectionViewChatLayout delegate

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public protocol ChatLayoutDelegate : AnyObject

Custom implementation of UICollectionViewLayoutAttributes

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public final class ChatLayoutAttributes : UICollectionViewLayoutAttributes

CollectionViewChatLayout settings.

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public struct ChatLayoutSettings : Equatable

Represents content offset position expressed by the specific item and it offset from the top or bottom edge.

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public struct ChatLayoutPositionSnapshot : Hashable

Custom implementation of UICollectionViewLayoutInvalidationContext

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public final class ChatLayoutInvalidationContext : UICollectionViewLayoutInvalidationContext

Type of the item supported by CollectionViewChatLayout

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public enum ItemKind : CaseIterable, Hashable

Represents desired item size.

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public enum ItemSize : Hashable

Represent item alignment in collection view layout

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public enum ChatItemAlignment : Hashable

Represents the point in time when CollectionViewChatLayout asks about layout attributes modification.

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public enum InitialAttributesRequestType : Hashable