SubcomposeLayoutState.PrecomposedSlotHandle

Instance of this interface is returned by precompose function.

Common

interface PrecomposedSlotHandle

Instance of this interface is returned by precompose function.

Properties

Common

val placeablesCount: Int

The amount of placeables composed into this slot.

fun dispose()

This function allows to dispose the content for the slot which was precomposed previously via precompose.

If this slot was already used during the regular measure pass via SubcomposeMeasureScope.subcompose this function will do nothing.

This could be useful if after the future calculations this item is not anymore expected to be used during the measure pass anytime soon.

fun premeasure(index: Int, constraints: Constraints)

Performs synchronous measure of the placeable at the given index.


index	the placeable index. Should be smaller than placeablesCount.
constraints	Constraints to measure this placeable with.

fun traverseDescendants(key: Any?, block: (TraversableNode) -> TraverseDescendantsAction)

Conditionally executes block for each Modifier.Node of this Composition that is a TraversableNode with a matching key.

See androidx.compose.ui.node.traverseDescendants for the complete semantics of this function.

fun getSize(index: Int): IntSize

Retrieves the latest measured size for a given placeable index. This will return IntSize.Zero if this is called before premeasure.