1 /*
2  * Copyright (C) 2019 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 com.android.settings.dashboard;
17 
18 import android.database.ContentObserver;
19 import android.net.Uri;
20 import android.os.Handler;
21 import android.os.Looper;
22 
23 /**
24  * Observer for updating injected dynamic data.
25  */
26 public abstract class DynamicDataObserver extends ContentObserver {
27 
DynamicDataObserver()28     protected DynamicDataObserver() {
29         super(new Handler(Looper.getMainLooper()));
30     }
31 
32     /** Returns the uri of the callback. */
getUri()33     public abstract Uri getUri();
34 
35     /** Called when data changes. */
onDataChanged()36     public abstract void onDataChanged();
37 
38     @Override
onChange(boolean selfChange)39     public void onChange(boolean selfChange) {
40         onDataChanged();
41     }
42 }
43