ItemDetailsLookup

Artifact: androidx.recyclerview:recyclerview-selection

View Source

Added in 1.0.0

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Kotlin |Java

abstract class ItemDetailsLookup<K>

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The Selection library calls getItemDetails when it needs access to information about the area and/or ItemDetails under a MotionEvent. Your implementation must negotiate ViewHolder lookup with the corresponding RecyclerView instance, and the subsequent conversion of the ViewHolder instance to an ItemDetails instance.

Example

final class MyDetailsLookup extends ItemDetailsLookup{

  private final RecyclerView mRecyclerView;

  MyDetailsLookup(RecyclerView recyclerView) {
      mRecyclerView = recyclerView;
  }

  public @Nullable ItemDetails

Parameters
<K>	Selection key type. @see StorageStrategy for supported types.

Summary

Nested types
abstract class ItemDetailsLookup.ItemDetails<K> An ItemDetails implementation provides the selection library with access to information about a specific RecyclerView item.

Public constructors
ItemDetailsLookup()

Public functions
abstract ItemDetailsLookup.ItemDetails<K!>?	getItemDetails(e: MotionEvent)

Public constructors

ItemDetailsLookup

Added in 1.0.0

ItemDetailsLookup()

Public functions

getItemDetails

Added in 1.0.0

abstract fun getItemDetails(e: MotionEvent): ItemDetailsLookup.ItemDetails<K!>?

Returns
ItemDetailsLookup.ItemDetails<K!>?	the ItemDetails for the item under the event, or null.