1 /*
2  * Copyright (C) 2014 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.server;
18 
19 import java.util.List;
20 
21 /**
22  * Shim to allow core/backup to communicate with the app widget service
23  * about various important events without needing to be able to see the
24  * implementation of the service.
25  *
26  * @hide
27  */
28 public interface WidgetBackupProvider {
getWidgetParticipants(int userId)29     public List<String> getWidgetParticipants(int userId);
getWidgetState(String packageName, int userId)30     public byte[] getWidgetState(String packageName, int userId);
restoreStarting(int userId)31     public void restoreStarting(int userId);
restoreWidgetState(String packageName, byte[] restoredState, int userId)32     public void restoreWidgetState(String packageName, byte[] restoredState, int userId);
restoreFinished(int userId)33     public void restoreFinished(int userId);
34 }
35