LazyGridPrefetchScope
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@ExperimentalFoundationApi
interface LazyGridPrefetchScope
Scope for callbacks in LazyGridPrefetchStrategy which allows prefetches to be requested.
Summary
Public functions |
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List<LazyLayoutPrefetchState.PrefetchHandle> |
scheduleLinePrefetch(lineIndex: Int)Schedules a prefetch for the given line index. |
Cmn
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open List<LazyLayoutPrefetchState.PrefetchHandle> |
scheduleLinePrefetch(lineIndex: Int, onPrefetchFinished: (LazyGridPrefetchResultScope.() -> Unit)?)Schedules a prefetch for the given line index. |
Cmn
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Public functions
scheduleLinePrefetch
fun scheduleLinePrefetch(lineIndex: Int): List<LazyLayoutPrefetchState.PrefetchHandle>
Schedules a prefetch for the given line index. Requests are executed in the order they're requested. If a requested prefetch is no longer necessary (for example, due to changing scroll direction), the request should be canceled via LazyLayoutPrefetchState.PrefetchHandle.cancel.
See PrefetchScheduler.
| Parameters | |
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lineIndex: Int |
index of the row or column to prefetch |
scheduleLinePrefetch
open fun scheduleLinePrefetch(lineIndex: Int, onPrefetchFinished: (LazyGridPrefetchResultScope.() -> Unit)?): List<LazyLayoutPrefetchState.PrefetchHandle>
Schedules a prefetch for the given line index. Requests are executed in the order they're requested. If a requested prefetch is no longer necessary (for example, due to changing scroll direction), the request should be canceled via LazyLayoutPrefetchState.PrefetchHandle.cancel.
See PrefetchScheduler.
| Parameters | |
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lineIndex: Int |
index of the row or column to prefetch |
onPrefetchFinished: (LazyGridPrefetchResultScope.() -> Unit)? |
A callback that will be invoked when the prefetching of this line is completed. This means precomposition and premeasuring. If the request is canceled before either phases can complete, or before all items in this line have been prepared, this callback won't be invoked. The lineIndex and the main axis size in pixels of the prefetched items are available as a parameter of this callback. See |