{% setvar book_path %}/reference/kotlin/androidx/_book.yaml{% endsetvar %} {% include "_shared/_reference-head-tags.html" %}
abstract class PagedList.Callback
Callback signaling when content is loaded into the list.
Can be used to listen to items being paged in and out. These calls will be dispatched on the dispatcher defined by PagedList.Builder.setNotifyDispatcher
, which is generally the main/UI thread.
Public constructors |
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Callback() |
Public functions |
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abstract Unit |
Called when null padding items have been loaded to signal newly available data, or when data that hasn't been used in a while has been dropped, and swapped back to null. |
abstract Unit |
onInserted(position: Int, count: Int) Called when new items have been loaded at the end or beginning of the list. |
abstract Unit |
Called when items have been removed at the end or beginning of the list, and have not been replaced by padded nulls. |
abstract fun onChanged(position: Int, count: Int): Unit
Called when null padding items have been loaded to signal newly available data, or when data that hasn't been used in a while has been dropped, and swapped back to null.
abstract fun onInserted(position: Int, count: Int): Unit
Called when new items have been loaded at the end or beginning of the list.