ItemDetailsLookup

public abstract class ItemDetailsLookup
extends Object

The Selection library calls getItemDetails(MotionEvent) when it needs access to information about the area and/or ItemDetailsLookup.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 ItemDetailsLookup.ItemDetails instance.

Example

 final class MyDetailsLookup extends ItemDetailsLookup {

   private final RecyclerView mRecyclerView;

   MyDetailsLookup(RecyclerView recyclerView) {
       mRecyclerView = recyclerView;
   }

   public @Nullable ItemDetails getItemDetails(@NonNull MotionEvent e) {
       View view = mRecyclerView.findChildViewUnder(e.getX(), e.getY());
       if (view != null) {
           ViewHolder holder = mRecyclerView.getChildViewHolder(view);
           if (holder instanceof MyHolder) {
               return ((MyHolder) holder).getItemDetails();
           }
       }
       return null;
   }
}
 

Summary

Public constructors

public ItemDetailsLookup ()

Public methods

public abstract ItemDetails<K> getItemDetails (MotionEvent e)