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