1 /*
2  * Copyright (C) 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 android.media;
18 
19 import android.media.NearbyDevice;
20 
21 /**
22  * A callback used to receive updates about the status of nearby devices that are able to play
23  * media.
24  *
25  * External clients may allow registration of these callbacks and external clients will be
26  * responsible for notifying the callbacks appropriately.
27  *
28  * @hide
29  */
30 oneway interface INearbyMediaDevicesUpdateCallback {
31     /**
32      * Invoked by external clients when changes in nearby media device(s) are detected.
33      *
34      * When a callback is newly registered, it should be immediately notified of the current nearby
35      * media devices. Afterwards, the list of devices passed to the callback should always contain
36      * the full set of nearby media devices any time you get an update. If a device is no longer
37      * valid (went offline, e.g.) then it should be omitted from the list in the next update.
38      *
39      * @param nearbyDevices the list of nearby devices that have changed status due to moving closer
40      *                      or further away.
41      */
onDevicesUpdated(in List<NearbyDevice> nearbyDevices)42     void onDevicesUpdated(in List<NearbyDevice> nearbyDevices);
43 }
44