| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.layoutlib.bridge.util; |
| |
| import com.android.resources.ResourceType; |
| import com.android.util.Pair; |
| |
| import android.annotation.NonNull; |
| import android.util.SparseArray; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| public class DynamicIdMap { |
| |
| private final Map<Pair<ResourceType, String>, Integer> mDynamicIds = new HashMap<>(); |
| private final SparseArray<Pair<ResourceType, String>> mRevDynamicIds = new SparseArray<>(); |
| private int mDynamicSeed; |
| |
| public DynamicIdMap(int seed) { |
| mDynamicSeed = seed; |
| } |
| |
| public void reset(int seed) { |
| mDynamicIds.clear(); |
| mRevDynamicIds.clear(); |
| mDynamicSeed = seed; |
| } |
| |
| /** |
| * Returns a dynamic integer for the given resource type/name, creating it if it doesn't |
| * already exist. |
| * |
| * @param type the type of the resource |
| * @param name the name of the resource |
| * @return an integer. |
| */ |
| @NonNull |
| public Integer getId(ResourceType type, String name) { |
| return getId(Pair.of(type, name)); |
| } |
| |
| /** |
| * Returns a dynamic integer for the given resource type/name, creating it if it doesn't |
| * already exist. |
| * |
| * @param resource the type/name of the resource |
| * @return an integer. |
| */ |
| @NonNull |
| public Integer getId(Pair<ResourceType, String> resource) { |
| Integer value = mDynamicIds.get(resource); |
| if (value == null) { |
| value = ++mDynamicSeed; |
| mDynamicIds.put(resource, value); |
| mRevDynamicIds.put(value, resource); |
| } |
| |
| return value; |
| } |
| |
| public Pair<ResourceType, String> resolveId(int id) { |
| return mRevDynamicIds.get(id); |
| } |
| } |