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.util.AttributeSet; 19 20 import androidx.preference.Preference; 21 22 import com.android.settings.R; 23 24 public class DataSaverPreference extends Preference implements DataSaverBackend.Listener { 25 26 private final DataSaverBackend mDataSaverBackend; 27 DataSaverPreference(Context context, AttributeSet attrs)28 public DataSaverPreference(Context context, AttributeSet attrs) { 29 super(context, attrs); 30 mDataSaverBackend = new DataSaverBackend(context); 31 } 32 33 @Override onAttached()34 public void onAttached() { 35 super.onAttached(); 36 mDataSaverBackend.addListener(this); 37 } 38 39 @Override onDetached()40 public void onDetached() { 41 super.onDetached(); 42 mDataSaverBackend.remListener(this); 43 } 44 45 @Override onDataSaverChanged(boolean isDataSaving)46 public void onDataSaverChanged(boolean isDataSaving) { 47 setSummary(isDataSaving ? R.string.data_saver_on : R.string.data_saver_off); 48 } 49 50 @Override onWhitelistStatusChanged(int uid, boolean isWhitelisted)51 public void onWhitelistStatusChanged(int uid, boolean isWhitelisted) { 52 } 53 54 @Override onBlacklistStatusChanged(int uid, boolean isBlacklisted)55 public void onBlacklistStatusChanged(int uid, boolean isBlacklisted) { 56 } 57 } 58