1 /*
2  * Copyright (C) 2021 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 com.android.car.pm;
18 
19 import android.accessibilityservice.AccessibilityService;
20 import android.view.accessibility.AccessibilityEvent;
21 
22 import com.android.car.CarLocalServices;
23 
24 /**
25  * An accessibility service to notify the Car Service of any change in the window state. The car
26  * safety related code can read the events sent from this service and take the necessary actions.
27  */
28 public class CarSafetyAccessibilityService extends AccessibilityService {
29     @Override
onAccessibilityEvent(AccessibilityEvent event)30     public void onAccessibilityEvent(AccessibilityEvent event) {
31         CarPackageManagerService carPackageManagerService =
32                 CarLocalServices.getService(CarPackageManagerService.class);
33         if (carPackageManagerService != null) {
34             carPackageManagerService.onWindowChangeEvent();
35         }
36     }
37 
38     @Override
onInterrupt()39     public void onInterrupt() {
40     }
41 }
42