1 /* 2 * Copyright (C) 2017 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.car.settings.wifi.details; 17 18 import android.car.drivingstate.CarUxRestrictions; 19 import android.content.Context; 20 import android.net.LinkProperties; 21 22 import com.android.car.settings.common.FragmentController; 23 24 import java.net.InetAddress; 25 import java.util.stream.Collectors; 26 27 /** 28 * Shows info about Wifi DNS info. 29 */ 30 public class WifiDnsPreferenceController extends 31 WifiDetailsBasePreferenceController<WifiDetailsPreference> { 32 WifiDnsPreferenceController(Context context, String preferenceKey, FragmentController fragmentController, CarUxRestrictions uxRestrictions)33 public WifiDnsPreferenceController(Context context, String preferenceKey, 34 FragmentController fragmentController, CarUxRestrictions uxRestrictions) { 35 super(context, preferenceKey, fragmentController, uxRestrictions); 36 } 37 38 @Override getPreferenceType()39 protected Class<WifiDetailsPreference> getPreferenceType() { 40 return WifiDetailsPreference.class; 41 } 42 43 @Override updateState(WifiDetailsPreference preference)44 protected void updateState(WifiDetailsPreference preference) { 45 LinkProperties linkProperties = getWifiInfoProvider().getLinkProperties(); 46 String dnsServers = null; 47 if (linkProperties != null) { 48 dnsServers = linkProperties.getDnsServers().stream() 49 .map(InetAddress::getHostAddress) 50 .collect(Collectors.joining(System.lineSeparator())); 51 } 52 53 if (dnsServers == null) { 54 preference.setVisible(false); 55 } else { 56 preference.setDetailText(dnsServers); 57 preference.setVisible(true); 58 } 59 } 60 } 61