PagingSource.LoadParams.Prepend

Artifact: androidx.paging:paging-common

View Source

Added in 3.0.0

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Kotlin |Java

Common/AllAndroid/JVM

• Cmn

  class PagingSource.LoadParams.Prepend<Key : Any> : PagingSource.LoadParams

kotlin.Any
↳	androidx.paging.PagingSource.LoadParams
	↳	androidx.paging.PagingSource.LoadParams.Prepend

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Params to load a page of data from a PagingSource via PagingSource.load to be prepended to the start of the list.

Summary

Public constructors
<Key : Any> Prepend(key: Key, loadSize: Int, placeholdersEnabled: Boolean)	Cmn

Public properties
open Key	key Key for the page to be loaded.	Cmn

Inherited properties
From androidx.paging.PagingSource.LoadParams Int loadSize Requested number of items to load. Cmn Boolean placeholdersEnabled From PagingConfig.enablePlaceholders, true if placeholders are enabled and the load request for this LoadParams should populate LoadResult.Page.itemsBefore and LoadResult.Page.itemsAfter if possible. Cmn

Public constructors

Prepend

Cmn

<Key : Any> Prepend(key: Key, loadSize: Int, placeholdersEnabled: Boolean)

Public properties

key

Cmn

Added in 3.3.4

open val key: Key

Key for the page to be loaded.

key can be null only if this LoadParams is Refresh, and either no initialKey is provided to the Pager or PagingSource.getRefreshKey from the previous PagingSource returns null.

The value of key is dependent on the type of LoadParams:

• Refresh

• On initial load, the nullable initialKey passed to the Pager.

• On subsequent loads due to invalidation or refresh, the result of PagingSource.getRefreshKey.

• Prepend - LoadResult.Page.prevKey of the loaded page at the front of the list.

• Append - LoadResult.Page.nextKey of the loaded page at the end of the list.