1 /*
2  * Copyright (C) 2021 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 android.util;
18 
19 import android.content.res.Resources;
20 
21 import com.android.internal.R;
22 
23 /**
24  * Utils for loading resources for multi-display.
25  *
26  * @hide
27  */
28 public class DisplayUtils {
29 
30     /**
31      * Gets the index of the given display unique id in {@link R.array#config_displayUniqueIdArray}
32      * which is used to get the related cutout configs for that display.
33      *
34      * For multi-display device, {@link R.array#config_displayUniqueIdArray} should be set for each
35      * display if there are different type of cutouts on each display.
36      * For single display device, {@link R.array#config_displayUniqueIdArray} should not to be set
37      * and the system will load the default configs for main built-in display.
38      */
getDisplayUniqueIdConfigIndex(Resources res, String displayUniqueId)39     public static int getDisplayUniqueIdConfigIndex(Resources res, String displayUniqueId) {
40         int index = -1;
41         if (displayUniqueId == null || displayUniqueId.isEmpty()) {
42             return index;
43         }
44         final String[] ids = res.getStringArray(R.array.config_displayUniqueIdArray);
45         final int size = ids.length;
46         for (int i = 0; i < size; i++) {
47             if (displayUniqueId.equals(ids[i])) {
48                 index = i;
49                 break;
50             }
51         }
52         return index;
53     }
54 }
55