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      1 /*
      2  * Copyright (C) 2008 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.settings.deviceinfo;
     18 
     19 import android.bluetooth.BluetoothAdapter;
     20 import android.content.BroadcastReceiver;
     21 import android.content.Context;
     22 import android.content.Intent;
     23 import android.content.IntentFilter;
     24 import android.content.res.Resources;
     25 import android.net.ConnectivityManager;
     26 import android.net.NetworkInfo;
     27 import android.net.wifi.WifiInfo;
     28 import android.net.wifi.WifiManager;
     29 import android.os.Build;
     30 import android.os.Bundle;
     31 import android.os.Handler;
     32 import android.os.Message;
     33 import android.os.SystemClock;
     34 import android.os.SystemProperties;
     35 import android.os.UserHandle;
     36 import android.preference.Preference;
     37 import android.preference.PreferenceActivity;
     38 import android.preference.PreferenceScreen;
     39 import android.telephony.CellBroadcastMessage;
     40 import android.telephony.PhoneNumberUtils;
     41 import android.telephony.PhoneStateListener;
     42 import android.telephony.ServiceState;
     43 import android.telephony.TelephonyManager;
     44 import android.text.TextUtils;
     45 
     46 import com.android.internal.telephony.Phone;
     47 import com.android.internal.telephony.PhoneConstants;
     48 import com.android.internal.telephony.PhoneFactory;
     49 import com.android.internal.telephony.PhoneStateIntentReceiver;
     50 import com.android.settings.R;
     51 import com.android.settings.Utils;
     52 
     53 import java.lang.ref.WeakReference;
     54 
     55 /**
     56  * Display the following information
     57  * # Phone Number
     58  * # Network
     59  * # Roaming
     60  * # Device Id (IMEI in GSM and MEID in CDMA)
     61  * # Network type
     62  * # Operator info (area info cell broadcast for Brazil)
     63  * # Signal Strength
     64  * # Battery Strength  : TODO
     65  * # Uptime
     66  * # Awake Time
     67  * # XMPP/buzz/tickle status : TODO
     68  *
     69  */
     70 public class Status extends PreferenceActivity {
     71 
     72     private static final String KEY_DATA_STATE = "data_state";
     73     private static final String KEY_SERVICE_STATE = "service_state";
     74     private static final String KEY_OPERATOR_NAME = "operator_name";
     75     private static final String KEY_ROAMING_STATE = "roaming_state";
     76     private static final String KEY_NETWORK_TYPE = "network_type";
     77     private static final String KEY_LATEST_AREA_INFO = "latest_area_info";
     78     private static final String KEY_PHONE_NUMBER = "number";
     79     private static final String KEY_IMEI_SV = "imei_sv";
     80     private static final String KEY_IMEI = "imei";
     81     private static final String KEY_PRL_VERSION = "prl_version";
     82     private static final String KEY_MIN_NUMBER = "min_number";
     83     private static final String KEY_MEID_NUMBER = "meid_number";
     84     private static final String KEY_SIGNAL_STRENGTH = "signal_strength";
     85     private static final String KEY_BATTERY_STATUS = "battery_status";
     86     private static final String KEY_BATTERY_LEVEL = "battery_level";
     87     private static final String KEY_IP_ADDRESS = "wifi_ip_address";
     88     private static final String KEY_WIFI_MAC_ADDRESS = "wifi_mac_address";
     89     private static final String KEY_BT_ADDRESS = "bt_address";
     90     private static final String KEY_SERIAL_NUMBER = "serial_number";
     91     private static final String KEY_ICC_ID = "icc_id";
     92     private static final String KEY_WIMAX_MAC_ADDRESS = "wimax_mac_address";
     93     private static final String[] PHONE_RELATED_ENTRIES = {
     94         KEY_DATA_STATE,
     95         KEY_SERVICE_STATE,
     96         KEY_OPERATOR_NAME,
     97         KEY_ROAMING_STATE,
     98         KEY_NETWORK_TYPE,
     99         KEY_LATEST_AREA_INFO,
    100         KEY_PHONE_NUMBER,
    101         KEY_IMEI,
    102         KEY_IMEI_SV,
    103         KEY_PRL_VERSION,
    104         KEY_MIN_NUMBER,
    105         KEY_MEID_NUMBER,
    106         KEY_SIGNAL_STRENGTH,
    107         KEY_ICC_ID
    108     };
    109 
    110     static final String CB_AREA_INFO_RECEIVED_ACTION =
    111             "android.cellbroadcastreceiver.CB_AREA_INFO_RECEIVED";
    112 
    113     static final String GET_LATEST_CB_AREA_INFO_ACTION =
    114             "android.cellbroadcastreceiver.GET_LATEST_CB_AREA_INFO";
    115 
    116     // Require the sender to have this permission to prevent third-party spoofing.
    117     static final String CB_AREA_INFO_SENDER_PERMISSION =
    118             "android.permission.RECEIVE_EMERGENCY_BROADCAST";
    119 
    120     private static final int EVENT_SIGNAL_STRENGTH_CHANGED = 200;
    121     private static final int EVENT_SERVICE_STATE_CHANGED = 300;
    122 
    123     private static final int EVENT_UPDATE_STATS = 500;
    124 
    125     private TelephonyManager mTelephonyManager;
    126     private Phone mPhone = null;
    127     private PhoneStateIntentReceiver mPhoneStateReceiver;
    128     private Resources mRes;
    129     private Preference mSignalStrength;
    130     private Preference mUptime;
    131     private boolean mShowLatestAreaInfo;
    132 
    133     private String sUnknown;
    134 
    135     private Preference mBatteryStatus;
    136     private Preference mBatteryLevel;
    137 
    138     private Handler mHandler;
    139 
    140     private static class MyHandler extends Handler {
    141         private WeakReference<Status> mStatus;
    142 
    143         public MyHandler(Status activity) {
    144             mStatus = new WeakReference<Status>(activity);
    145         }
    146 
    147         @Override
    148         public void handleMessage(Message msg) {
    149             Status status = mStatus.get();
    150             if (status == null) {
    151                 return;
    152             }
    153 
    154             switch (msg.what) {
    155                 case EVENT_SIGNAL_STRENGTH_CHANGED:
    156                     status.updateSignalStrength();
    157                     break;
    158 
    159                 case EVENT_SERVICE_STATE_CHANGED:
    160                     ServiceState serviceState = status.mPhoneStateReceiver.getServiceState();
    161                     status.updateServiceState(serviceState);
    162                     break;
    163 
    164                 case EVENT_UPDATE_STATS:
    165                     status.updateTimes();
    166                     sendEmptyMessageDelayed(EVENT_UPDATE_STATS, 1000);
    167                     break;
    168             }
    169         }
    170     }
    171 
    172     private BroadcastReceiver mBatteryInfoReceiver = new BroadcastReceiver() {
    173 
    174         @Override
    175         public void onReceive(Context context, Intent intent) {
    176             String action = intent.getAction();
    177             if (Intent.ACTION_BATTERY_CHANGED.equals(action)) {
    178                 mBatteryLevel.setSummary(Utils.getBatteryPercentage(intent));
    179                 mBatteryStatus.setSummary(Utils.getBatteryStatus(getResources(), intent));
    180             }
    181         }
    182     };
    183 
    184     private PhoneStateListener mPhoneStateListener = new PhoneStateListener() {
    185         @Override
    186         public void onDataConnectionStateChanged(int state) {
    187             updateDataState();
    188             updateNetworkType();
    189         }
    190     };
    191 
    192     private BroadcastReceiver mAreaInfoReceiver = new BroadcastReceiver() {
    193         @Override
    194         public void onReceive(Context context, Intent intent) {
    195             String action = intent.getAction();
    196             if (CB_AREA_INFO_RECEIVED_ACTION.equals(action)) {
    197                 Bundle extras = intent.getExtras();
    198                 if (extras == null) {
    199                     return;
    200                 }
    201                 CellBroadcastMessage cbMessage = (CellBroadcastMessage) extras.get("message");
    202                 if (cbMessage != null && cbMessage.getServiceCategory() == 50) {
    203                     String latestAreaInfo = cbMessage.getMessageBody();
    204                     updateAreaInfo(latestAreaInfo);
    205                 }
    206             }
    207         }
    208     };
    209 
    210     @Override
    211     protected void onCreate(Bundle icicle) {
    212         super.onCreate(icicle);
    213 
    214         mHandler = new MyHandler(this);
    215 
    216         mTelephonyManager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE);
    217 
    218         addPreferencesFromResource(R.xml.device_info_status);
    219         mBatteryLevel = findPreference(KEY_BATTERY_LEVEL);
    220         mBatteryStatus = findPreference(KEY_BATTERY_STATUS);
    221 
    222         mRes = getResources();
    223         sUnknown = mRes.getString(R.string.device_info_default);
    224         if (UserHandle.myUserId() == UserHandle.USER_OWNER) {
    225             mPhone = PhoneFactory.getDefaultPhone();
    226         }
    227         // Note - missing in zaku build, be careful later...
    228         mSignalStrength = findPreference(KEY_SIGNAL_STRENGTH);
    229         mUptime = findPreference("up_time");
    230 
    231         if (mPhone == null || Utils.isWifiOnly(getApplicationContext())) {
    232             for (String key : PHONE_RELATED_ENTRIES) {
    233                 removePreferenceFromScreen(key);
    234             }
    235         } else {
    236             // NOTE "imei" is the "Device ID" since it represents
    237             //  the IMEI in GSM and the MEID in CDMA
    238             if (mPhone.getPhoneName().equals("CDMA")) {
    239                 setSummaryText(KEY_MEID_NUMBER, mPhone.getMeid());
    240                 setSummaryText(KEY_MIN_NUMBER, mPhone.getCdmaMin());
    241                 if (getResources().getBoolean(R.bool.config_msid_enable)) {
    242                     findPreference(KEY_MIN_NUMBER).setTitle(R.string.status_msid_number);
    243                 }
    244                 setSummaryText(KEY_PRL_VERSION, mPhone.getCdmaPrlVersion());
    245                 removePreferenceFromScreen(KEY_IMEI_SV);
    246 
    247                 if (mPhone.getLteOnCdmaMode() == PhoneConstants.LTE_ON_CDMA_TRUE) {
    248                     // Show ICC ID and IMEI for LTE device
    249                     setSummaryText(KEY_ICC_ID, mPhone.getIccSerialNumber());
    250                     setSummaryText(KEY_IMEI, mPhone.getImei());
    251                 } else {
    252                     // device is not GSM/UMTS, do not display GSM/UMTS features
    253                     // check Null in case no specified preference in overlay xml
    254                     removePreferenceFromScreen(KEY_IMEI);
    255                     removePreferenceFromScreen(KEY_ICC_ID);
    256                 }
    257             } else {
    258                 setSummaryText(KEY_IMEI, mPhone.getDeviceId());
    259 
    260                 setSummaryText(KEY_IMEI_SV,
    261                         ((TelephonyManager) getSystemService(TELEPHONY_SERVICE))
    262                             .getDeviceSoftwareVersion());
    263 
    264                 // device is not CDMA, do not display CDMA features
    265                 // check Null in case no specified preference in overlay xml
    266                 removePreferenceFromScreen(KEY_PRL_VERSION);
    267                 removePreferenceFromScreen(KEY_MEID_NUMBER);
    268                 removePreferenceFromScreen(KEY_MIN_NUMBER);
    269                 removePreferenceFromScreen(KEY_ICC_ID);
    270 
    271                 // only show area info when SIM country is Brazil
    272                 if ("br".equals(mTelephonyManager.getSimCountryIso())) {
    273                     mShowLatestAreaInfo = true;
    274                 }
    275             }
    276 
    277             String rawNumber = mPhone.getLine1Number();  // may be null or empty
    278             String formattedNumber = null;
    279             if (!TextUtils.isEmpty(rawNumber)) {
    280                 formattedNumber = PhoneNumberUtils.formatNumber(rawNumber);
    281             }
    282             // If formattedNumber is null or empty, it'll display as "Unknown".
    283             setSummaryText(KEY_PHONE_NUMBER, formattedNumber);
    284 
    285             mPhoneStateReceiver = new PhoneStateIntentReceiver(this, mHandler);
    286             mPhoneStateReceiver.notifySignalStrength(EVENT_SIGNAL_STRENGTH_CHANGED);
    287             mPhoneStateReceiver.notifyServiceState(EVENT_SERVICE_STATE_CHANGED);
    288 
    289             if (!mShowLatestAreaInfo) {
    290                 removePreferenceFromScreen(KEY_LATEST_AREA_INFO);
    291             }
    292         }
    293 
    294         setWimaxStatus();
    295         setWifiStatus();
    296         setBtStatus();
    297         setIpAddressStatus();
    298 
    299         String serial = Build.SERIAL;
    300         if (serial != null && !serial.equals("")) {
    301             setSummaryText(KEY_SERIAL_NUMBER, serial);
    302         } else {
    303             removePreferenceFromScreen(KEY_SERIAL_NUMBER);
    304         }
    305     }
    306 
    307     @Override
    308     protected void onResume() {
    309         super.onResume();
    310 
    311         if (mPhone != null && !Utils.isWifiOnly(getApplicationContext())) {
    312             mPhoneStateReceiver.registerIntent();
    313 
    314             updateSignalStrength();
    315             updateServiceState(mPhone.getServiceState());
    316             updateDataState();
    317             mTelephonyManager.listen(mPhoneStateListener,
    318                     PhoneStateListener.LISTEN_DATA_CONNECTION_STATE);
    319             if (mShowLatestAreaInfo) {
    320                 registerReceiver(mAreaInfoReceiver, new IntentFilter(CB_AREA_INFO_RECEIVED_ACTION),
    321                         CB_AREA_INFO_SENDER_PERMISSION, null);
    322                 // Ask CellBroadcastReceiver to broadcast the latest area info received
    323                 Intent getLatestIntent = new Intent(GET_LATEST_CB_AREA_INFO_ACTION);
    324                 sendBroadcastAsUser(getLatestIntent, UserHandle.ALL,
    325                         CB_AREA_INFO_SENDER_PERMISSION);
    326             }
    327         }
    328         registerReceiver(mBatteryInfoReceiver, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    329         mHandler.sendEmptyMessage(EVENT_UPDATE_STATS);
    330     }
    331 
    332     @Override
    333     public void onPause() {
    334         super.onPause();
    335 
    336         if (mPhone != null && !Utils.isWifiOnly(getApplicationContext())) {
    337             mPhoneStateReceiver.unregisterIntent();
    338             mTelephonyManager.listen(mPhoneStateListener, PhoneStateListener.LISTEN_NONE);
    339         }
    340         if (mShowLatestAreaInfo) {
    341             unregisterReceiver(mAreaInfoReceiver);
    342         }
    343         unregisterReceiver(mBatteryInfoReceiver);
    344         mHandler.removeMessages(EVENT_UPDATE_STATS);
    345     }
    346 
    347     /**
    348      * Removes the specified preference, if it exists.
    349      * @param key the key for the Preference item
    350      */
    351     private void removePreferenceFromScreen(String key) {
    352         Preference pref = findPreference(key);
    353         if (pref != null) {
    354             getPreferenceScreen().removePreference(pref);
    355         }
    356     }
    357 
    358     /**
    359      * @param preference The key for the Preference item
    360      * @param property The system property to fetch
    361      * @param alt The default value, if the property doesn't exist
    362      */
    363     private void setSummary(String preference, String property, String alt) {
    364         try {
    365             findPreference(preference).setSummary(
    366                     SystemProperties.get(property, alt));
    367         } catch (RuntimeException e) {
    368 
    369         }
    370     }
    371 
    372     private void setSummaryText(String preference, String text) {
    373             if (TextUtils.isEmpty(text)) {
    374                text = sUnknown;
    375              }
    376              // some preferences may be missing
    377              if (findPreference(preference) != null) {
    378                  findPreference(preference).setSummary(text);
    379              }
    380     }
    381 
    382     private void updateNetworkType() {
    383         // Whether EDGE, UMTS, etc...
    384         String networktype = null;
    385         if (TelephonyManager.NETWORK_TYPE_UNKNOWN != mTelephonyManager.getNetworkType()) {
    386             networktype = mTelephonyManager.getNetworkTypeName();
    387         }
    388         setSummaryText(KEY_NETWORK_TYPE, networktype);
    389     }
    390 
    391     private void updateDataState() {
    392         int state = mTelephonyManager.getDataState();
    393         String display = mRes.getString(R.string.radioInfo_unknown);
    394 
    395         switch (state) {
    396             case TelephonyManager.DATA_CONNECTED:
    397                 display = mRes.getString(R.string.radioInfo_data_connected);
    398                 break;
    399             case TelephonyManager.DATA_SUSPENDED:
    400                 display = mRes.getString(R.string.radioInfo_data_suspended);
    401                 break;
    402             case TelephonyManager.DATA_CONNECTING:
    403                 display = mRes.getString(R.string.radioInfo_data_connecting);
    404                 break;
    405             case TelephonyManager.DATA_DISCONNECTED:
    406                 display = mRes.getString(R.string.radioInfo_data_disconnected);
    407                 break;
    408         }
    409 
    410         setSummaryText(KEY_DATA_STATE, display);
    411     }
    412 
    413     private void updateServiceState(ServiceState serviceState) {
    414         int state = serviceState.getState();
    415         String display = mRes.getString(R.string.radioInfo_unknown);
    416 
    417         switch (state) {
    418             case ServiceState.STATE_IN_SERVICE:
    419                 display = mRes.getString(R.string.radioInfo_service_in);
    420                 break;
    421             case ServiceState.STATE_OUT_OF_SERVICE:
    422             case ServiceState.STATE_EMERGENCY_ONLY:
    423                 display = mRes.getString(R.string.radioInfo_service_out);
    424                 break;
    425             case ServiceState.STATE_POWER_OFF:
    426                 display = mRes.getString(R.string.radioInfo_service_off);
    427                 break;
    428         }
    429 
    430         setSummaryText(KEY_SERVICE_STATE, display);
    431 
    432         if (serviceState.getRoaming()) {
    433             setSummaryText(KEY_ROAMING_STATE, mRes.getString(R.string.radioInfo_roaming_in));
    434         } else {
    435             setSummaryText(KEY_ROAMING_STATE, mRes.getString(R.string.radioInfo_roaming_not));
    436         }
    437         setSummaryText(KEY_OPERATOR_NAME, serviceState.getOperatorAlphaLong());
    438     }
    439 
    440     private void updateAreaInfo(String areaInfo) {
    441         if (areaInfo != null) {
    442             setSummaryText(KEY_LATEST_AREA_INFO, areaInfo);
    443         }
    444     }
    445 
    446     void updateSignalStrength() {
    447         // TODO PhoneStateIntentReceiver is deprecated and PhoneStateListener
    448         // should probably used instead.
    449 
    450         // not loaded in some versions of the code (e.g., zaku)
    451         if (mSignalStrength != null) {
    452             int state =
    453                     mPhoneStateReceiver.getServiceState().getState();
    454             Resources r = getResources();
    455 
    456             if ((ServiceState.STATE_OUT_OF_SERVICE == state) ||
    457                     (ServiceState.STATE_POWER_OFF == state)) {
    458                 mSignalStrength.setSummary("0");
    459             }
    460 
    461             int signalDbm = mPhoneStateReceiver.getSignalStrengthDbm();
    462 
    463             if (-1 == signalDbm) signalDbm = 0;
    464 
    465             int signalAsu = mPhoneStateReceiver.getSignalStrengthLevelAsu();
    466 
    467             if (-1 == signalAsu) signalAsu = 0;
    468 
    469             mSignalStrength.setSummary(String.valueOf(signalDbm) + " "
    470                         + r.getString(R.string.radioInfo_display_dbm) + "   "
    471                         + String.valueOf(signalAsu) + " "
    472                         + r.getString(R.string.radioInfo_display_asu));
    473         }
    474     }
    475 
    476     private void setWimaxStatus() {
    477         ConnectivityManager cm = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
    478         NetworkInfo ni = cm.getNetworkInfo(ConnectivityManager.TYPE_WIMAX);
    479 
    480         if (ni == null) {
    481             PreferenceScreen root = getPreferenceScreen();
    482             Preference ps = (Preference) findPreference(KEY_WIMAX_MAC_ADDRESS);
    483             if (ps != null) root.removePreference(ps);
    484         } else {
    485             Preference wimaxMacAddressPref = findPreference(KEY_WIMAX_MAC_ADDRESS);
    486             String macAddress = SystemProperties.get("net.wimax.mac.address",
    487                     getString(R.string.status_unavailable));
    488             wimaxMacAddressPref.setSummary(macAddress);
    489         }
    490     }
    491     private void setWifiStatus() {
    492         WifiManager wifiManager = (WifiManager) getSystemService(WIFI_SERVICE);
    493         WifiInfo wifiInfo = wifiManager.getConnectionInfo();
    494 
    495         Preference wifiMacAddressPref = findPreference(KEY_WIFI_MAC_ADDRESS);
    496 
    497         String macAddress = wifiInfo == null ? null : wifiInfo.getMacAddress();
    498         wifiMacAddressPref.setSummary(!TextUtils.isEmpty(macAddress) ? macAddress
    499                 : getString(R.string.status_unavailable));
    500     }
    501 
    502     private void setIpAddressStatus() {
    503         Preference ipAddressPref = findPreference(KEY_IP_ADDRESS);
    504         String ipAddress = Utils.getDefaultIpAddresses(this);
    505         if (ipAddress != null) {
    506             ipAddressPref.setSummary(ipAddress);
    507         } else {
    508             ipAddressPref.setSummary(getString(R.string.status_unavailable));
    509         }
    510     }
    511 
    512     private void setBtStatus() {
    513         BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter();
    514         Preference btAddressPref = findPreference(KEY_BT_ADDRESS);
    515 
    516         if (bluetooth == null) {
    517             // device not BT capable
    518             getPreferenceScreen().removePreference(btAddressPref);
    519         } else {
    520             String address = bluetooth.isEnabled() ? bluetooth.getAddress() : null;
    521             btAddressPref.setSummary(!TextUtils.isEmpty(address) ? address
    522                     : getString(R.string.status_unavailable));
    523         }
    524     }
    525 
    526     void updateTimes() {
    527         long at = SystemClock.uptimeMillis() / 1000;
    528         long ut = SystemClock.elapsedRealtime() / 1000;
    529 
    530         if (ut == 0) {
    531             ut = 1;
    532         }
    533 
    534         mUptime.setSummary(convert(ut));
    535     }
    536 
    537     private String pad(int n) {
    538         if (n >= 10) {
    539             return String.valueOf(n);
    540         } else {
    541             return "0" + String.valueOf(n);
    542         }
    543     }
    544 
    545     private String convert(long t) {
    546         int s = (int)(t % 60);
    547         int m = (int)((t / 60) % 60);
    548         int h = (int)((t / 3600));
    549 
    550         return h + ":" + pad(m) + ":" + pad(s);
    551     }
    552 }
    553