1 /*
2  * Copyright (C) 2015 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.media;
18 
19 /**
20  * AudioDeviceCallback defines the mechanism by which applications can receive notifications
21  * of audio device connection and disconnection events.
22  * @see AudioManager#registerAudioDeviceCallback.
23  */
24 public abstract class AudioDeviceCallback {
25     /**
26      * Called by the {@link AudioManager} to indicate that one or more audio devices have been
27      * connected.
28      * @param addedDevices  An array of {@link AudioDeviceInfo} objects corresponding to any
29      * newly added audio devices.
30      */
onAudioDevicesAdded(AudioDeviceInfo[] addedDevices)31     public void onAudioDevicesAdded(AudioDeviceInfo[] addedDevices) {}
32 
33     /**
34      * Called by the {@link AudioManager} to indicate that one or more audio devices have been
35      * disconnected.
36      * @param removedDevices  An array of {@link AudioDeviceInfo} objects corresponding to any
37      * newly removed audio devices.
38      */
onAudioDevicesRemoved(AudioDeviceInfo[] removedDevices)39     public void onAudioDevicesRemoved(AudioDeviceInfo[] removedDevices) {}
40 }
41