1 /*
2  * Copyright (C) 2016 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
5  * except in compliance with the License. You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
11  * KIND, either express or implied. See the License for the specific language governing
12  * permissions and limitations under the License.
13  */
14 
15 package com.android.settings.datausage;
16 
17 import android.content.Context;
18 import android.support.v7.preference.Preference;
19 import android.util.AttributeSet;
20 import com.android.settings.R;
21 
22 public class DataSaverPreference extends Preference implements DataSaverBackend.Listener {
23 
24     private final DataSaverBackend mDataSaverBackend;
25 
DataSaverPreference(Context context, AttributeSet attrs)26     public DataSaverPreference(Context context, AttributeSet attrs) {
27         super(context, attrs);
28         mDataSaverBackend = new DataSaverBackend(context);
29     }
30 
31     @Override
onAttached()32     public void onAttached() {
33         super.onAttached();
34         mDataSaverBackend.addListener(this);
35     }
36 
37     @Override
onDetached()38     public void onDetached() {
39         super.onDetached();
40         mDataSaverBackend.addListener(this);
41     }
42 
43     @Override
onDataSaverChanged(boolean isDataSaving)44     public void onDataSaverChanged(boolean isDataSaving) {
45         setSummary(isDataSaving ? R.string.data_saver_on : R.string.data_saver_off);
46     }
47 
48     @Override
onWhitelistStatusChanged(int uid, boolean isWhitelisted)49     public void onWhitelistStatusChanged(int uid, boolean isWhitelisted) {
50     }
51 
52     @Override
onBlacklistStatusChanged(int uid, boolean isBlacklisted)53     public void onBlacklistStatusChanged(int uid, boolean isBlacklisted) {
54     }
55 }
56