Jetpack Compose LazyLayout in Foundation

A layout that only composes and lays out currently needed items. Can be used to build efficient scrollable layouts.

@param itemProvider provides all the needed info about the items which could be used to compose and measure items as part of measurePolicy. @param modifier to apply on the layout @param prefetchState allows to schedule items for prefetching @param measurePolicy Measure policy which allows to only compose and measure needed items.

Overloads

LazyLayout

@Deprecated(
    message = "Use an overload accepting a lambda prodicing an item provider instead",
    replaceWith = ReplaceWith(
        "LazyLayout({ itemProvider }, modifier, prefetchState, measurePolicy)"
    )
)
@ExperimentalFoundationApi
@Composable
fun LazyLayout(
    itemProvider: LazyLayoutItemProvider,
    modifier: Modifier = Modifier,
    prefetchState: LazyLayoutPrefetchState? = null,
    measurePolicy: LazyLayoutMeasureScope.(Constraints) -> MeasureResult
)

Parameters

Name	Description
`itemProvider`	provides all the needed info about the items which could be used to compose and measure items as part of measurePolicy.
`modifier`	to apply on the layout
`prefetchState`	allows to schedule items for prefetching
`measurePolicy`	Measure policy which allows to only compose and measure needed items

LazyLayout

@ExperimentalFoundationApi
@Composable
fun LazyLayout(
    itemProvider: () -> LazyLayoutItemProvider,
    modifier: Modifier = Modifier,
    prefetchState: LazyLayoutPrefetchState? = null,
    measurePolicy: LazyLayoutMeasureScope.(Constraints) -> MeasureResult
)

Parameters

Name	Description
`itemProvider`	lambda producing an item provider containing all the needed info about the items which could be used to compose and measure items as part of measurePolicy.
`modifier`	to apply on the layout
`prefetchState`	allows to schedule items for prefetching
`measurePolicy`	Measure policy which allows to only compose and measure needed items. Note: this function is a part of LazyLayout harness that allows for building custom lazy layouts. LazyLayout and all corresponding APIs are still under development and are subject to change