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 */
16package com.android.server.vr;
17
18/**
19 * Listener for state changes in VrManagerService.
20 *
21 * @hide Only for use within system server.
22 */
23public 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   */
30    public abstract void onVrStateChanged(boolean enabled);
31}
32