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, executor: Executor, generator: (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>.insertSeparatorsAsync(generator: AsyncFunction<AdjacentItems<T>, R?>, executor: Executor) 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>.map(transform: suspend (T) -> R) Returns a PagingData containing the result of applying the given transform to each element, as it is loaded. PagingData<R> PagingData<T>.map(executor: Executor, transform: (T) -> R) Returns a PagingData containing the result of applying the given transform to each element, as it is loaded. PagingData<R> PagingData<T>.mapAsync(transform: AsyncFunction<T, R>, executor: Executor) Returns a PagingData containing the result of applying the given