litho-widget-kotlin/com.facebook.litho.widget.collection/CollectionLayoutScope

CollectionLayoutScope

class CollectionLayoutScope(val layoutInfo: LayoutInfo, val collectionConstraints: SizeConstraints, val collectionSize: IntSize, val collectionItems: List<CollectionItem<*>>, val isVertical: Boolean, val wrapInMainAxis: Boolean, val crossAxisWrapMode: CrossAxisWrapMode, val firstVisiblePosition: Int, val lastVisiblePosition: Int) : ItemSizeConstraintsProviderScope

Constructors

CollectionLayoutScope

constructor(layoutInfo: LayoutInfo, collectionConstraints: SizeConstraints, collectionSize: IntSize, collectionItems: List<CollectionItem<*>>, isVertical: Boolean, wrapInMainAxis: Boolean, crossAxisWrapMode: CrossAxisWrapMode, firstVisiblePosition: Int, lastVisiblePosition: Int)

Properties

collectionConstraints

val collectionConstraints: SizeConstraints

collectionItems

val collectionItems: List<CollectionItem<*>>

val collectionSize: IntSize

crossAxisWrapMode

val crossAxisWrapMode: CrossAxisWrapMode

firstVisiblePosition

val firstVisiblePosition: Int

val isDynamicSize: Boolean

val isVertical: Boolean

lastVisiblePosition

val lastVisiblePosition: Int

val layoutInfo: LayoutInfo

val wrapInMainAxis: Boolean

Functions

calculateLayout

fun CollectionLayoutScope.calculateLayout(): IntSize

Measures the size of the Collection.

getChildSizeConstraints

fun ItemSizeConstraintsProviderScope.getChildSizeConstraints(item: CollectionItem<*>, collectionSize: IntSize = this.collectionSize): SizeConstraints

Calculates the size constraints for child items within a RecyclerView-like collection.

fun getSavedState(): Any?

fun saveState(state: Any?)