1 /*
2  * Copyright 2022 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 com.android.server.audio;
18 
19 import static com.android.internal.annotations.VisibleForTesting.Visibility.PACKAGE;
20 
21 import android.media.audiopolicy.AudioVolumeGroup;
22 
23 import com.android.internal.annotations.VisibleForTesting;
24 
25 import java.util.ArrayList;
26 import java.util.List;
27 
28 /** Abstract class for {@link AudioVolumeGroup} related helper methods. */
29 @VisibleForTesting(visibility = PACKAGE)
30 public class AudioVolumeGroupHelperBase {
getAudioVolumeGroups()31     public List<AudioVolumeGroup> getAudioVolumeGroups() {
32         return new ArrayList<>();
33     }
34 }
35