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 package com.android.server.vr;
17 
18 /**
19  * Listener for state changes in VrManagerService.
20  *
21  * @hide Only for use within system server.
22  */
23 public abstract class VrStateListener {
24 
25   /**
26    * Called when the VR mode state changes.
27    *
28    * @param enabled {@code true} if VR mode is enabled.
29    */
onVrStateChanged(boolean enabled)30     public abstract void onVrStateChanged(boolean enabled);
31 }
32