1 /* 2 * Copyright 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package androidx.recyclerview.selection.testing; 18 19 import static androidx.core.util.Preconditions.checkArgument; 20 21 import androidx.recyclerview.selection.ItemKeyProvider; 22 23 /** 24 * Provides RecyclerView selection code access to stable ids backed 25 * by TestAdapter. 26 */ 27 public final class TestItemKeyProvider<K> extends ItemKeyProvider<K> { 28 29 private final TestAdapter<K> mAdapter; 30 31 public TestItemKeyProvider(@Scope int scope, TestAdapter<K> adapter) { 32 super(scope); 33 checkArgument(adapter != null); 34 mAdapter = adapter; 35 } 36 37 @Override 38 public K getKey(int position) { 39 return mAdapter.getSelectionKey(position); 40 } 41 42 @Override 43 public int getPosition(K key) { 44 return mAdapter.getPosition(key); 45 } 46 } 47
