1 /*
2  * Copyright (C) 2017 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 package com.android.settings.applications;
15 
16 import android.content.Context;
17 import android.support.v7.preference.Preference;
18 import com.android.settings.R;
19 import com.android.settings.core.PreferenceController;
20 import com.android.settings.datausage.DataSaverBackend;
21 
22 public class SpecialAppAccessPreferenceController extends PreferenceController {
23 
24     private static final String KEY_SPECIAL_ACCESS = "special_access";
25 
26     private DataSaverBackend mDataSaverBackend;
27 
SpecialAppAccessPreferenceController(Context context)28     public SpecialAppAccessPreferenceController(Context context) {
29         super(context);
30     }
31 
32     @Override
isAvailable()33     public boolean isAvailable() {
34         return true;
35     }
36 
37     @Override
getPreferenceKey()38     public String getPreferenceKey() {
39         return KEY_SPECIAL_ACCESS;
40     }
41 
42     @Override
updateState(Preference preference)43     public void updateState(Preference preference) {
44         if (mDataSaverBackend == null) {
45             mDataSaverBackend = new DataSaverBackend(mContext);
46         }
47         final int count = mDataSaverBackend.getWhitelistedCount();
48         preference.setSummary(mContext.getResources().getQuantityString(
49             R.plurals.special_access_summary, count, count));
50     }
51 }
52