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 17 package com.android.settingslib.deviceinfo; 18 19 import android.annotation.SuppressLint; 20 import android.content.Context; 21 import android.net.ConnectivityManager; 22 import android.net.wifi.WifiInfo; 23 import android.net.wifi.WifiManager; 24 import android.text.TextUtils; 25 26 import androidx.annotation.VisibleForTesting; 27 import androidx.preference.Preference; 28 import androidx.preference.PreferenceScreen; 29 30 import com.android.settingslib.R; 31 import com.android.settingslib.core.lifecycle.Lifecycle; 32 33 /** 34 * Preference controller for WIFI MAC address 35 */ 36 public abstract class AbstractWifiMacAddressPreferenceController 37 extends AbstractConnectivityPreferenceController { 38 39 @VisibleForTesting 40 static final String KEY_WIFI_MAC_ADDRESS = "wifi_mac_address"; 41 @VisibleForTesting 42 static final int OFF = 0; 43 @VisibleForTesting 44 static final int ON = 1; 45 46 private static final String[] CONNECTIVITY_INTENTS = { 47 ConnectivityManager.CONNECTIVITY_ACTION, 48 WifiManager.ACTION_LINK_CONFIGURATION_CHANGED, 49 WifiManager.NETWORK_STATE_CHANGED_ACTION, 50 }; 51 52 private Preference mWifiMacAddress; 53 private final WifiManager mWifiManager; 54 AbstractWifiMacAddressPreferenceController(Context context, Lifecycle lifecycle)55 public AbstractWifiMacAddressPreferenceController(Context context, Lifecycle lifecycle) { 56 super(context, lifecycle); 57 mWifiManager = context.getSystemService(WifiManager.class); 58 } 59 60 @Override isAvailable()61 public boolean isAvailable() { 62 return mWifiManager != null; 63 } 64 65 @Override getPreferenceKey()66 public String getPreferenceKey() { 67 return KEY_WIFI_MAC_ADDRESS; 68 } 69 70 @Override displayPreference(PreferenceScreen screen)71 public void displayPreference(PreferenceScreen screen) { 72 super.displayPreference(screen); 73 mWifiMacAddress = screen.findPreference(KEY_WIFI_MAC_ADDRESS); 74 updateConnectivity(); 75 } 76 77 @Override getConnectivityIntents()78 protected String[] getConnectivityIntents() { 79 return CONNECTIVITY_INTENTS; 80 } 81 82 @SuppressLint("HardwareIds") 83 @Override updateConnectivity()84 protected void updateConnectivity() { 85 if (mWifiManager == null || mWifiMacAddress == null) { 86 return; 87 } 88 89 final String[] macAddresses = mWifiManager.getFactoryMacAddresses(); 90 String macAddress = null; 91 if (macAddresses != null && macAddresses.length > 0) { 92 macAddress = macAddresses[0]; 93 } 94 95 if (TextUtils.isEmpty(macAddress) || macAddress.equals(WifiInfo.DEFAULT_MAC_ADDRESS)) { 96 mWifiMacAddress.setSummary(R.string.status_unavailable); 97 } else { 98 mWifiMacAddress.setSummary(macAddress); 99 } 100 } 101 } 102