1 /*
2  * Copyright (C) 2018 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.settings.homepage.contextualcards;
18 
19 import androidx.annotation.MainThread;
20 
21 import java.util.List;
22 import java.util.Map;
23 
24 /**
25  * When {@link ContextualCardController} detects changes, it will notify the listeners registered.
26  */
27 public interface ContextualCardUpdateListener {
28 
29     /**
30      * Called when a set of cards are updated.
31      *
32      * @param cards A map of updates grouped by {@link ContextualCard.CardType}. Values can be
33      *              null, which means all cards from corresponding {@link
34      *              ContextualCard.CardType} are removed.
35      */
36     @MainThread
onContextualCardUpdated(Map<Integer, List<ContextualCard>> cards)37     void onContextualCardUpdated(Map<Integer, List<ContextualCard>> cards);
38 }