ItemDetailsLookup

Artifact: androidx.recyclerview:recyclerview-selection

View Source

Added in 1.0.0

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Kotlin |Java

public 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
public 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 methods
abstract @Nullable ItemDetailsLookup.ItemDetails<K>	getItemDetails(@NonNull MotionEvent e)

Public constructors

ItemDetailsLookup

Added in 1.0.0

public ItemDetailsLookup()

Public methods

getItemDetails

Added in 1.0.0

public abstract @Nullable ItemDetailsLookup.ItemDetails<K> getItemDetails(@NonNull MotionEvent e)

Returns
@Nullable ItemDetailsLookup.ItemDetails<K>	the ItemDetails for the item under the event, or null.