SpecialAppAccessPreferenceController.java revision 6f3364bf78f2e2dfbb7451c2ed2c54e85d97060f 
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 */
14package com.android.settings.applications;
15
16import android.content.Context;
17import android.support.v7.preference.Preference;
18import com.android.settings.R;
19import com.android.settings.core.PreferenceController;
20import com.android.settings.datausage.DataSaverBackend;
21
22public class SpecialAppAccessPreferenceController extends PreferenceController {
23
24    private static final String KEY_SPECIAL_ACCESS = "special_access";
25
26    private DataSaverBackend mDataSaverBackend;
27
28    public SpecialAppAccessPreferenceController(Context context) {
29        super(context);
30    }
31
32    @Override
33    public boolean isAvailable() {
34        return true;
35    }
36
37    @Override
38    public String getPreferenceKey() {
39        return KEY_SPECIAL_ACCESS;
40    }
41
42    @Override
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