PagingData

Kotlin |Java

class PagingData<T : Any>

kotlin.Any
↳	androidx.paging.PagingData

Container for Paged data from a single generation of loads.

Each refresh of data (generally either pushed by local storage, or pulled from the network) will have a separate corresponding PagingData.

Summary

Companion functions
PagingData<T>	`empty()` Create a PagingData that immediately displays an empty list of items when submitted to AsyncPagingDataAdapter.
PagingData<T>	`from(data: List<T>)` Create a PagingData that immediately displays a static list of items when submitted to AsyncPagingDataAdapter.

Extension functions

From androidx.paging

PagingData<T>	`PagingData<T>.filter(predicate: suspend (T) -> Boolean)` Returns a PagingData containing only elements matching the given predicate
PagingData<T>	`PagingData<T>.filter(executor: Executor, predicate: (T) -> Boolean)` Returns a PagingData containing only elements matching the given predicate.
PagingData<T>	`PagingData<T>.filterAsync(predicate: AsyncFunction<T, Boolean>, executor: Executor)` Returns a PagingData containing only elements matching the given predicate.
PagingData<R>	`PagingData<T>.flatMap(transform: suspend (T) -> Iterable<R>)` Returns a PagingData of all elements returned from applying the given transform to each element, as it is loaded.
PagingData<R>	`PagingData<T>.flatMap(executor: Executor, transform: (T) -> Iterable<R>)` Returns a PagingData of all elements returned from applying the given transform to each element, as it is loaded.
PagingData<R>	`PagingData<T>.flatMapAsync(transform: AsyncFunction<T, Iterable<R>>, executor: Executor)` Returns a PagingData of all elements returned from applying the given transform to each element, as it is loaded.
PagingData<T>	`PagingData<T>.insertFooterItem(terminalSeparatorType: TerminalSeparatorType = FULLY_COMPLETE, item: T)` Returns a PagingData containing each original element, with the passed footer item added to the end of the list.
PagingData<T>	`PagingData<T>.insertHeaderItem(terminalSeparatorType: TerminalSeparatorType = FULLY_COMPLETE, item: T)` Returns a PagingData containing each original element, with the passed header item added to the start of the list.
PagingData<R>	`PagingData<T>.insertSeparators(terminalSeparatorType: TerminalSeparatorType = FULLY_COMPLETE, generator: suspend (T?, T?) -> R?)` Returns a PagingData containing each original element, with an optional separator generated by generator, given the elements before and after (or null, in boundary conditions).
PagingData<R>	`PagingData<T>.insertSeparators(terminalSeparatorType: TerminalSeparatorType = FULLY_COMPLETE,`