LazyLayoutMeasureScope

Interface

Common

sealed interface LazyLayoutMeasureScope : MeasureScope

The receiver scope of a LazyLayout's measure lambda. The return value of the measure lambda is MeasureResult, which should be returned by layout.

Call compose to compose items emitted in a content block for a given index.

Functions

fun compose(@AndroidXIntRange(from = 0) index: Int): List<Measurable>

Compose an item of lazy layout.

Parameters


index	the item index. Should be no larger that `LazyLayoutItemProvider.itemCount`.

Returns


	List of `Measurable`s. Note that if you emitted multiple children into the item composable you will receive multiple measurebles.

@ExperimentalFoundationApi
    fun measure(index: Int, constraints: Constraints): List<Placeable>

Subcompose and measure the item of lazy layout.

Parameters


index	the item index. Should be no larger that `LazyLayoutItemProvider.itemCount`.
constraints	`Constraints` to measure the children emitted into an item content composable specified via `LazyLayoutItemProvider.Item`.

Returns


	List of `Placeable`s. Note that if you emitted multiple children into the item composable you will receive multiple placeables, each of them will be measured with the passed `constraints`.