FairEmail/app/src/main/java/eu/faircode/email/ItemKeyProviderMessage.java

48 lines
1.6 KiB
Java

package eu.faircode.email;
/*
This file is part of FairEmail.
FairEmail is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
FairEmail is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
Copyright 2018-2023 by Marcel Bokhorst (M66B)
*/
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.recyclerview.selection.ItemKeyProvider;
import androidx.recyclerview.widget.RecyclerView;
public class ItemKeyProviderMessage extends ItemKeyProvider<Long> {
private RecyclerView recyclerView;
ItemKeyProviderMessage(RecyclerView recyclerView) {
super(ItemKeyProvider.SCOPE_CACHED);
this.recyclerView = recyclerView;
}
@Nullable
@Override
public Long getKey(int pos) {
AdapterMessage adapter = (AdapterMessage) recyclerView.getAdapter();
return adapter.getKeyAtPosition(pos);
}
@Override
public int getPosition(@NonNull Long key) {
AdapterMessage adapter = (AdapterMessage) recyclerView.getAdapter();
return adapter.getPositionForKey(key);
}
}