Alan Viverette | 3da604b | 2020-06-10 18:34:39 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2017 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 android.app.admin; |
| 17 | |
| 18 | import android.app.Service; |
| 19 | import android.content.ComponentName; |
| 20 | import android.content.Intent; |
| 21 | import android.os.IBinder; |
| 22 | |
| 23 | /** |
| 24 | * Base class for a service that device owner/profile owners can optionally have. |
| 25 | * |
| 26 | * <p>The system searches for it with an intent filter with the |
| 27 | * {@link DevicePolicyManager#ACTION_DEVICE_ADMIN_SERVICE} action, and tries to keep a bound |
| 28 | * connection as long as the hosting user is running, so that the device/profile owner is always |
| 29 | * considered to be in the foreground. This is useful to receive implicit broadcasts that |
| 30 | * can no longer be received by manifest receivers by apps targeting Android version |
| 31 | * {@link android.os.Build.VERSION_CODES#O}. Device/profile owners can use a runtime-registered |
| 32 | * broadcast receiver instead, and have a {@link DeviceAdminService} so that the process is always |
| 33 | * running. |
| 34 | * |
| 35 | * <p>Device/profile owners can use |
| 36 | * {@link android.content.pm.PackageManager#setComponentEnabledSetting(ComponentName, int, int)} |
| 37 | * to disable/enable its own service. For example, when a device/profile owner no longer needs |
| 38 | * to be in the foreground, it can (and should) disable its service. |
| 39 | * |
| 40 | * <p>The service must be protected with the permission |
| 41 | * {@link android.Manifest.permission#BIND_DEVICE_ADMIN}. Otherwise the system would ignore it. |
| 42 | * |
| 43 | * <p>When the owner process crashes, the service will be re-bound automatically after a |
| 44 | * back-off. |
| 45 | * |
| 46 | * <p>Note the process may still be killed if the system is under heavy memory pressure, in which |
| 47 | * case the process will be re-started later. |
| 48 | */ |
| 49 | public class DeviceAdminService extends Service { |
| 50 | private final IDeviceAdminServiceImpl mImpl; |
| 51 | |
| 52 | public DeviceAdminService() { |
| 53 | mImpl = new IDeviceAdminServiceImpl(); |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public final IBinder onBind(Intent intent) { |
| 58 | return mImpl.asBinder(); |
| 59 | } |
| 60 | |
| 61 | private class IDeviceAdminServiceImpl extends IDeviceAdminService.Stub { |
| 62 | } |
| 63 | |
| 64 | // So far, we have no methods in this class. |
| 65 | } |