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.companion.virtual;
18 
19 import android.content.ComponentName;
20 
21 /**
22  * Interface to listen for activity changes in a virtual device.
23  *
24  * @hide
25  */
26 oneway interface IVirtualDeviceActivityListener {
27 
28     /**
29      * Called when the top activity is changed.
30      *
31      * @param displayId The display ID on which the activity change happened.
32      * @param topActivity The component name of the top activity.
33      * @param userId The user ID associated with the top activity.
34      */
onTopActivityChanged(int displayId, in ComponentName topActivity, in int userId)35     void onTopActivityChanged(int displayId, in ComponentName topActivity, in int userId);
36 
37     /**
38      * Called when the display becomes empty (e.g. if the user hits back on the last
39      * activity of the root task).
40      *
41      * @param displayId The display ID that became empty.
42      */
onDisplayEmpty(int displayId)43     void onDisplayEmpty(int displayId);
44 }
45