Core

A collection view layout that can display items in a grid similar to UITableView but aligning them to the leading or trailing edge of the UICollectionView. Helps to maintain chat like behavior by keeping content offset from the bottom constant. Can deal with autosizing cells and supplementary views.

Custom Properties:

ChatLayout.delegate

ChatLayout.settings

ChatLayout.keepContentOffsetAtBottomOnBatchUpdates

ChatLayout.visibleBounds

ChatLayout.layoutFrame

Custom Methods:

ChatLayout.getContentOffsetSnapshot(...)

ChatLayout.restoreContentOffset(...)

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public final class ChatLayout : UICollectionViewLayout

ChatLayout delegate

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public protocol ChatLayoutDelegate : AnyObject

Custom implementation of UICollectionViewLayoutAttributes

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public class ChatLayoutAttributes : UICollectionViewLayoutAttributes

ChatLayout settings.

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public struct ChatLayoutSettings

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

Custom implementation of UICollectionViewLayoutInvalidationContext

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public final class ChatLayoutInvalidationContext : UICollectionViewLayoutInvalidationContext

Type of the item supported by ChatLayout

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public enum ItemKind : CaseIterable, Hashable

Represents desired item size.

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public enum ItemSize

Represent item alignment in collection view layout

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public enum ChatItemAlignment : Hashable