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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 android.telephony;
     18 
     19 import android.annotation.SdkConstant;
     20 import android.annotation.SdkConstant.SdkConstantType;
     21 import android.content.Context;
     22 import android.os.Bundle;
     23 import android.os.RemoteException;
     24 import android.os.ServiceManager;
     25 import android.os.SystemProperties;
     26 import android.util.Log;
     27 
     28 import com.android.internal.telephony.IPhoneSubInfo;
     29 import com.android.internal.telephony.ITelephony;
     30 import com.android.internal.telephony.ITelephonyRegistry;
     31 import com.android.internal.telephony.Phone;
     32 import com.android.internal.telephony.PhoneFactory;
     33 import com.android.internal.telephony.TelephonyProperties;
     34 
     35 import java.util.List;
     36 
     37 /**
     38  * Provides access to information about the telephony services on
     39  * the device. Applications can use the methods in this class to
     40  * determine telephony services and states, as well as to access some
     41  * types of subscriber information. Applications can also register
     42  * a listener to receive notification of telephony state changes.
     43  * <p>
     44  * You do not instantiate this class directly; instead, you retrieve
     45  * a reference to an instance through
     46  * {@link android.content.Context#getSystemService
     47  * Context.getSystemService(Context.TELEPHONY_SERVICE)}.
     48  * <p>
     49  * Note that access to some telephony information is
     50  * permission-protected. Your application cannot access the protected
     51  * information unless it has the appropriate permissions declared in
     52  * its manifest file. Where permissions apply, they are noted in the
     53  * the methods through which you access the protected information.
     54  */
     55 public class TelephonyManager {
     56     private static final String TAG = "TelephonyManager";
     57 
     58     private static Context sContext;
     59     private static ITelephonyRegistry sRegistry;
     60 
     61     /** @hide */
     62     public TelephonyManager(Context context) {
     63         if (sContext == null) {
     64             Context appContext = context.getApplicationContext();
     65             if (appContext != null) {
     66                 sContext = appContext;
     67             } else {
     68                 sContext = context;
     69             }
     70 
     71             sRegistry = ITelephonyRegistry.Stub.asInterface(ServiceManager.getService(
     72                     "telephony.registry"));
     73         }
     74     }
     75 
     76     /** @hide */
     77     private TelephonyManager() {
     78     }
     79 
     80     private static TelephonyManager sInstance = new TelephonyManager();
     81 
     82     /** @hide
     83     /* @deprecated - use getSystemService as described above */
     84     public static TelephonyManager getDefault() {
     85         return sInstance;
     86     }
     87 
     88 
     89     //
     90     // Broadcast Intent actions
     91     //
     92 
     93     /**
     94      * Broadcast intent action indicating that the call state (cellular)
     95      * on the device has changed.
     96      *
     97      * <p>
     98      * The {@link #EXTRA_STATE} extra indicates the new call state.
     99      * If the new state is RINGING, a second extra
    100      * {@link #EXTRA_INCOMING_NUMBER} provides the incoming phone number as
    101      * a String.
    102      *
    103      * <p class="note">
    104      * Requires the READ_PHONE_STATE permission.
    105      *
    106      * <p class="note">
    107      * This was a {@link android.content.Context#sendStickyBroadcast sticky}
    108      * broadcast in version 1.0, but it is no longer sticky.
    109      * Instead, use {@link #getCallState} to synchronously query the current call state.
    110      *
    111      * @see #EXTRA_STATE
    112      * @see #EXTRA_INCOMING_NUMBER
    113      * @see #getCallState
    114      */
    115     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
    116     public static final String ACTION_PHONE_STATE_CHANGED =
    117             "android.intent.action.PHONE_STATE";
    118 
    119     /**
    120      * The lookup key used with the {@link #ACTION_PHONE_STATE_CHANGED} broadcast
    121      * for a String containing the new call state.
    122      *
    123      * @see #EXTRA_STATE_IDLE
    124      * @see #EXTRA_STATE_RINGING
    125      * @see #EXTRA_STATE_OFFHOOK
    126      *
    127      * <p class="note">
    128      * Retrieve with
    129      * {@link android.content.Intent#getStringExtra(String)}.
    130      */
    131     public static final String EXTRA_STATE = Phone.STATE_KEY;
    132 
    133     /**
    134      * Value used with {@link #EXTRA_STATE} corresponding to
    135      * {@link #CALL_STATE_IDLE}.
    136      */
    137     public static final String EXTRA_STATE_IDLE = Phone.State.IDLE.toString();
    138 
    139     /**
    140      * Value used with {@link #EXTRA_STATE} corresponding to
    141      * {@link #CALL_STATE_RINGING}.
    142      */
    143     public static final String EXTRA_STATE_RINGING = Phone.State.RINGING.toString();
    144 
    145     /**
    146      * Value used with {@link #EXTRA_STATE} corresponding to
    147      * {@link #CALL_STATE_OFFHOOK}.
    148      */
    149     public static final String EXTRA_STATE_OFFHOOK = Phone.State.OFFHOOK.toString();
    150 
    151     /**
    152      * The lookup key used with the {@link #ACTION_PHONE_STATE_CHANGED} broadcast
    153      * for a String containing the incoming phone number.
    154      * Only valid when the new call state is RINGING.
    155      *
    156      * <p class="note">
    157      * Retrieve with
    158      * {@link android.content.Intent#getStringExtra(String)}.
    159      */
    160     public static final String EXTRA_INCOMING_NUMBER = "incoming_number";
    161 
    162 
    163     //
    164     //
    165     // Device Info
    166     //
    167     //
    168 
    169     /**
    170      * Returns the software version number for the device, for example,
    171      * the IMEI/SV for GSM phones. Return null if the software version is
    172      * not available.
    173      *
    174      * <p>Requires Permission:
    175      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    176      */
    177     public String getDeviceSoftwareVersion() {
    178         try {
    179             return getSubscriberInfo().getDeviceSvn();
    180         } catch (RemoteException ex) {
    181             return null;
    182         } catch (NullPointerException ex) {
    183             return null;
    184         }
    185     }
    186 
    187     /**
    188      * Returns the unique device ID, for example, the IMEI for GSM and the MEID
    189      * or ESN for CDMA phones. Return null if device ID is not available.
    190      *
    191      * <p>Requires Permission:
    192      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    193      */
    194     public String getDeviceId() {
    195         try {
    196             return getSubscriberInfo().getDeviceId();
    197         } catch (RemoteException ex) {
    198             return null;
    199         } catch (NullPointerException ex) {
    200             return null;
    201         }
    202     }
    203 
    204     /**
    205      * Returns the current location of the device.
    206      * Return null if current location is not available.
    207      *
    208      * <p>Requires Permission:
    209      * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_COARSE_LOCATION} or
    210      * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_FINE_LOCATION}.
    211      */
    212     public CellLocation getCellLocation() {
    213         try {
    214             Bundle bundle = getITelephony().getCellLocation();
    215             CellLocation cl = CellLocation.newFromBundle(bundle);
    216             if (cl.isEmpty())
    217                 return null;
    218             return cl;
    219         } catch (RemoteException ex) {
    220             return null;
    221         } catch (NullPointerException ex) {
    222             return null;
    223         }
    224     }
    225 
    226     /**
    227      * Enables location update notifications.  {@link PhoneStateListener#onCellLocationChanged
    228      * PhoneStateListener.onCellLocationChanged} will be called on location updates.
    229      *
    230      * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES
    231      * CONTROL_LOCATION_UPDATES}
    232      *
    233      * @hide
    234      */
    235     public void enableLocationUpdates() {
    236         try {
    237             getITelephony().enableLocationUpdates();
    238         } catch (RemoteException ex) {
    239         } catch (NullPointerException ex) {
    240         }
    241     }
    242 
    243     /**
    244      * Disables location update notifications.  {@link PhoneStateListener#onCellLocationChanged
    245      * PhoneStateListener.onCellLocationChanged} will be called on location updates.
    246      *
    247      * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES
    248      * CONTROL_LOCATION_UPDATES}
    249      *
    250      * @hide
    251      */
    252     public void disableLocationUpdates() {
    253         try {
    254             getITelephony().disableLocationUpdates();
    255         } catch (RemoteException ex) {
    256         } catch (NullPointerException ex) {
    257         }
    258     }
    259 
    260     /**
    261      * Returns the neighboring cell information of the device.
    262      *
    263      * @return List of NeighboringCellInfo or null if info unavailable.
    264      *
    265      * <p>Requires Permission:
    266      * (@link android.Manifest.permission#ACCESS_COARSE_UPDATES}
    267      */
    268     public List<NeighboringCellInfo> getNeighboringCellInfo() {
    269         try {
    270             return getITelephony().getNeighboringCellInfo();
    271         } catch (RemoteException ex) {
    272             return null;
    273         } catch (NullPointerException ex) {
    274             return null;
    275         }
    276     }
    277 
    278     /** No phone radio. */
    279     public static final int PHONE_TYPE_NONE = Phone.PHONE_TYPE_NONE;
    280     /** Phone radio is GSM. */
    281     public static final int PHONE_TYPE_GSM = Phone.PHONE_TYPE_GSM;
    282     /** Phone radio is CDMA. */
    283     public static final int PHONE_TYPE_CDMA = Phone.PHONE_TYPE_CDMA;
    284     /** Phone is via SIP. */
    285     public static final int PHONE_TYPE_SIP = Phone.PHONE_TYPE_SIP;
    286 
    287     /**
    288      * Returns the current phone type.
    289      * TODO: This is a last minute change and hence hidden.
    290      *
    291      * @see #PHONE_TYPE_NONE
    292      * @see #PHONE_TYPE_GSM
    293      * @see #PHONE_TYPE_CDMA
    294      * @see #PHONE_TYPE_SIP
    295      *
    296      * {@hide}
    297      */
    298     public int getCurrentPhoneType() {
    299         try{
    300             ITelephony telephony = getITelephony();
    301             if (telephony != null) {
    302                 return telephony.getActivePhoneType();
    303             } else {
    304                 // This can happen when the ITelephony interface is not up yet.
    305                 return getPhoneTypeFromProperty();
    306             }
    307         } catch (RemoteException ex) {
    308             // This shouldn't happen in the normal case, as a backup we
    309             // read from the system property.
    310             return getPhoneTypeFromProperty();
    311         } catch (NullPointerException ex) {
    312             // This shouldn't happen in the normal case, as a backup we
    313             // read from the system property.
    314             return getPhoneTypeFromProperty();
    315         }
    316     }
    317 
    318     /**
    319      * Returns a constant indicating the device phone type.  This
    320      * indicates the type of radio used to transmit voice calls.
    321      *
    322      * @see #PHONE_TYPE_NONE
    323      * @see #PHONE_TYPE_GSM
    324      * @see #PHONE_TYPE_CDMA
    325      * @see #PHONE_TYPE_SIP
    326      */
    327     public int getPhoneType() {
    328         if (!isVoiceCapable()) {
    329             return PHONE_TYPE_NONE;
    330         }
    331         return getCurrentPhoneType();
    332     }
    333 
    334     private int getPhoneTypeFromProperty() {
    335         int type =
    336             SystemProperties.getInt(TelephonyProperties.CURRENT_ACTIVE_PHONE,
    337                     getPhoneTypeFromNetworkType());
    338         return type;
    339     }
    340 
    341     private int getPhoneTypeFromNetworkType() {
    342         // When the system property CURRENT_ACTIVE_PHONE, has not been set,
    343         // use the system property for default network type.
    344         // This is a fail safe, and can only happen at first boot.
    345         int mode = SystemProperties.getInt("ro.telephony.default_network", -1);
    346         if (mode == -1)
    347             return PHONE_TYPE_NONE;
    348         return PhoneFactory.getPhoneType(mode);
    349     }
    350     //
    351     //
    352     // Current Network
    353     //
    354     //
    355 
    356     /**
    357      * Returns the alphabetic name of current registered operator.
    358      * <p>
    359      * Availability: Only when user is registered to a network. Result may be
    360      * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if
    361      * on a CDMA network).
    362      */
    363     public String getNetworkOperatorName() {
    364         return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA);
    365     }
    366 
    367     /**
    368      * Returns the numeric name (MCC+MNC) of current registered operator.
    369      * <p>
    370      * Availability: Only when user is registered to a network. Result may be
    371      * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if
    372      * on a CDMA network).
    373      */
    374     public String getNetworkOperator() {
    375         return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC);
    376     }
    377 
    378     /**
    379      * Returns true if the device is considered roaming on the current
    380      * network, for GSM purposes.
    381      * <p>
    382      * Availability: Only when user registered to a network.
    383      */
    384     public boolean isNetworkRoaming() {
    385         return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING));
    386     }
    387 
    388     /**
    389      * Returns the ISO country code equivalent of the current registered
    390      * operator's MCC (Mobile Country Code).
    391      * <p>
    392      * Availability: Only when user is registered to a network. Result may be
    393      * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if
    394      * on a CDMA network).
    395      */
    396     public String getNetworkCountryIso() {
    397         return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY);
    398     }
    399 
    400     /** Network type is unknown */
    401     public static final int NETWORK_TYPE_UNKNOWN = 0;
    402     /** Current network is GPRS */
    403     public static final int NETWORK_TYPE_GPRS = 1;
    404     /** Current network is EDGE */
    405     public static final int NETWORK_TYPE_EDGE = 2;
    406     /** Current network is UMTS */
    407     public static final int NETWORK_TYPE_UMTS = 3;
    408     /** Current network is CDMA: Either IS95A or IS95B*/
    409     public static final int NETWORK_TYPE_CDMA = 4;
    410     /** Current network is EVDO revision 0*/
    411     public static final int NETWORK_TYPE_EVDO_0 = 5;
    412     /** Current network is EVDO revision A*/
    413     public static final int NETWORK_TYPE_EVDO_A = 6;
    414     /** Current network is 1xRTT*/
    415     public static final int NETWORK_TYPE_1xRTT = 7;
    416     /** Current network is HSDPA */
    417     public static final int NETWORK_TYPE_HSDPA = 8;
    418     /** Current network is HSUPA */
    419     public static final int NETWORK_TYPE_HSUPA = 9;
    420     /** Current network is HSPA */
    421     public static final int NETWORK_TYPE_HSPA = 10;
    422     /** Current network is iDen */
    423     public static final int NETWORK_TYPE_IDEN = 11;
    424     /** Current network is EVDO revision B*/
    425     public static final int NETWORK_TYPE_EVDO_B = 12;
    426     /** Current network is LTE */
    427     public static final int NETWORK_TYPE_LTE = 13;
    428     /** Current network is eHRPD */
    429     public static final int NETWORK_TYPE_EHRPD = 14;
    430     /** Current network is HSPA+ */
    431     public static final int NETWORK_TYPE_HSPAP = 15;
    432 
    433     /**
    434      * Returns a constant indicating the radio technology (network type)
    435      * currently in use on the device for data transmission.
    436      * @return the network type
    437      *
    438      * @see #NETWORK_TYPE_UNKNOWN
    439      * @see #NETWORK_TYPE_GPRS
    440      * @see #NETWORK_TYPE_EDGE
    441      * @see #NETWORK_TYPE_UMTS
    442      * @see #NETWORK_TYPE_HSDPA
    443      * @see #NETWORK_TYPE_HSUPA
    444      * @see #NETWORK_TYPE_HSPA
    445      * @see #NETWORK_TYPE_CDMA
    446      * @see #NETWORK_TYPE_EVDO_0
    447      * @see #NETWORK_TYPE_EVDO_A
    448      * @see #NETWORK_TYPE_EVDO_B
    449      * @see #NETWORK_TYPE_1xRTT
    450      * @see #NETWORK_TYPE_IDEN
    451      * @see #NETWORK_TYPE_LTE
    452      * @see #NETWORK_TYPE_EHRPD
    453      * @see #NETWORK_TYPE_HSPAP
    454      */
    455     public int getNetworkType() {
    456         try{
    457             ITelephony telephony = getITelephony();
    458             if (telephony != null) {
    459                 return telephony.getNetworkType();
    460             } else {
    461                 // This can happen when the ITelephony interface is not up yet.
    462                 return NETWORK_TYPE_UNKNOWN;
    463             }
    464         } catch(RemoteException ex) {
    465             // This shouldn't happen in the normal case
    466             return NETWORK_TYPE_UNKNOWN;
    467         } catch (NullPointerException ex) {
    468             // This could happen before phone restarts due to crashing
    469             return NETWORK_TYPE_UNKNOWN;
    470         }
    471     }
    472 
    473     /** Unknown network class. {@hide} */
    474     public static final int NETWORK_CLASS_UNKNOWN = 0;
    475     /** Class of broadly defined "2G" networks. {@hide} */
    476     public static final int NETWORK_CLASS_2_G = 1;
    477     /** Class of broadly defined "3G" networks. {@hide} */
    478     public static final int NETWORK_CLASS_3_G = 2;
    479     /** Class of broadly defined "4G" networks. {@hide} */
    480     public static final int NETWORK_CLASS_4_G = 3;
    481 
    482     /**
    483      * Return general class of network type, such as "3G" or "4G". In cases
    484      * where classification is contentious, this method is conservative.
    485      *
    486      * @hide
    487      */
    488     public static int getNetworkClass(int networkType) {
    489         switch (networkType) {
    490             case NETWORK_TYPE_GPRS:
    491             case NETWORK_TYPE_EDGE:
    492             case NETWORK_TYPE_CDMA:
    493             case NETWORK_TYPE_1xRTT:
    494             case NETWORK_TYPE_IDEN:
    495                 return NETWORK_CLASS_2_G;
    496             case NETWORK_TYPE_UMTS:
    497             case NETWORK_TYPE_EVDO_0:
    498             case NETWORK_TYPE_EVDO_A:
    499             case NETWORK_TYPE_HSDPA:
    500             case NETWORK_TYPE_HSUPA:
    501             case NETWORK_TYPE_HSPA:
    502             case NETWORK_TYPE_EVDO_B:
    503             case NETWORK_TYPE_EHRPD:
    504             case NETWORK_TYPE_HSPAP:
    505                 return NETWORK_CLASS_3_G;
    506             case NETWORK_TYPE_LTE:
    507                 return NETWORK_CLASS_4_G;
    508             default:
    509                 return NETWORK_CLASS_UNKNOWN;
    510         }
    511     }
    512 
    513     /**
    514      * Returns a string representation of the radio technology (network type)
    515      * currently in use on the device.
    516      * @return the name of the radio technology
    517      *
    518      * @hide pending API council review
    519      */
    520     public String getNetworkTypeName() {
    521         return getNetworkTypeName(getNetworkType());
    522     }
    523 
    524     /** {@hide} */
    525     public static String getNetworkTypeName(int type) {
    526         switch (type) {
    527             case NETWORK_TYPE_GPRS:
    528                 return "GPRS";
    529             case NETWORK_TYPE_EDGE:
    530                 return "EDGE";
    531             case NETWORK_TYPE_UMTS:
    532                 return "UMTS";
    533             case NETWORK_TYPE_HSDPA:
    534                 return "HSDPA";
    535             case NETWORK_TYPE_HSUPA:
    536                 return "HSUPA";
    537             case NETWORK_TYPE_HSPA:
    538                 return "HSPA";
    539             case NETWORK_TYPE_CDMA:
    540                 return "CDMA";
    541             case NETWORK_TYPE_EVDO_0:
    542                 return "CDMA - EvDo rev. 0";
    543             case NETWORK_TYPE_EVDO_A:
    544                 return "CDMA - EvDo rev. A";
    545             case NETWORK_TYPE_EVDO_B:
    546                 return "CDMA - EvDo rev. B";
    547             case NETWORK_TYPE_1xRTT:
    548                 return "CDMA - 1xRTT";
    549             case NETWORK_TYPE_LTE:
    550                 return "LTE";
    551             case NETWORK_TYPE_EHRPD:
    552                 return "CDMA - eHRPD";
    553             case NETWORK_TYPE_IDEN:
    554                 return "iDEN";
    555             case NETWORK_TYPE_HSPAP:
    556                 return "HSPA+";
    557             default:
    558                 return "UNKNOWN";
    559         }
    560     }
    561 
    562     //
    563     //
    564     // SIM Card
    565     //
    566     //
    567 
    568     /** SIM card state: Unknown. Signifies that the SIM is in transition
    569      *  between states. For example, when the user inputs the SIM pin
    570      *  under PIN_REQUIRED state, a query for sim status returns
    571      *  this state before turning to SIM_STATE_READY. */
    572     public static final int SIM_STATE_UNKNOWN = 0;
    573     /** SIM card state: no SIM card is available in the device */
    574     public static final int SIM_STATE_ABSENT = 1;
    575     /** SIM card state: Locked: requires the user's SIM PIN to unlock */
    576     public static final int SIM_STATE_PIN_REQUIRED = 2;
    577     /** SIM card state: Locked: requires the user's SIM PUK to unlock */
    578     public static final int SIM_STATE_PUK_REQUIRED = 3;
    579     /** SIM card state: Locked: requries a network PIN to unlock */
    580     public static final int SIM_STATE_NETWORK_LOCKED = 4;
    581     /** SIM card state: Ready */
    582     public static final int SIM_STATE_READY = 5;
    583 
    584     /**
    585      * @return true if a ICC card is present
    586      */
    587     public boolean hasIccCard() {
    588         try {
    589             return getITelephony().hasIccCard();
    590         } catch (RemoteException ex) {
    591             // Assume no ICC card if remote exception which shouldn't happen
    592             return false;
    593         } catch (NullPointerException ex) {
    594             // This could happen before phone restarts due to crashing
    595             return false;
    596         }
    597     }
    598 
    599     /**
    600      * Returns a constant indicating the state of the
    601      * device SIM card.
    602      *
    603      * @see #SIM_STATE_UNKNOWN
    604      * @see #SIM_STATE_ABSENT
    605      * @see #SIM_STATE_PIN_REQUIRED
    606      * @see #SIM_STATE_PUK_REQUIRED
    607      * @see #SIM_STATE_NETWORK_LOCKED
    608      * @see #SIM_STATE_READY
    609      */
    610     public int getSimState() {
    611         String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE);
    612         if ("ABSENT".equals(prop)) {
    613             return SIM_STATE_ABSENT;
    614         }
    615         else if ("PIN_REQUIRED".equals(prop)) {
    616             return SIM_STATE_PIN_REQUIRED;
    617         }
    618         else if ("PUK_REQUIRED".equals(prop)) {
    619             return SIM_STATE_PUK_REQUIRED;
    620         }
    621         else if ("NETWORK_LOCKED".equals(prop)) {
    622             return SIM_STATE_NETWORK_LOCKED;
    623         }
    624         else if ("READY".equals(prop)) {
    625             return SIM_STATE_READY;
    626         }
    627         else {
    628             return SIM_STATE_UNKNOWN;
    629         }
    630     }
    631 
    632     /**
    633      * Returns the MCC+MNC (mobile country code + mobile network code) of the
    634      * provider of the SIM. 5 or 6 decimal digits.
    635      * <p>
    636      * Availability: SIM state must be {@link #SIM_STATE_READY}
    637      *
    638      * @see #getSimState
    639      */
    640     public String getSimOperator() {
    641         return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC);
    642     }
    643 
    644     /**
    645      * Returns the Service Provider Name (SPN).
    646      * <p>
    647      * Availability: SIM state must be {@link #SIM_STATE_READY}
    648      *
    649      * @see #getSimState
    650      */
    651     public String getSimOperatorName() {
    652         return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA);
    653     }
    654 
    655     /**
    656      * Returns the ISO country code equivalent for the SIM provider's country code.
    657      */
    658     public String getSimCountryIso() {
    659         return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY);
    660     }
    661 
    662     /**
    663      * Returns the serial number of the SIM, if applicable. Return null if it is
    664      * unavailable.
    665      * <p>
    666      * Requires Permission:
    667      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    668      */
    669     public String getSimSerialNumber() {
    670         try {
    671             return getSubscriberInfo().getIccSerialNumber();
    672         } catch (RemoteException ex) {
    673             return null;
    674         } catch (NullPointerException ex) {
    675             // This could happen before phone restarts due to crashing
    676             return null;
    677         }
    678     }
    679 
    680     /**
    681      * Return if the current radio is LTE on CDMA. This
    682      * is a tri-state return value as for a period of time
    683      * the mode may be unknown.
    684      *
    685      * @return {@link Phone#LTE_ON_CDMA_UNKNOWN}, {@link Phone#LTE_ON_CDMA_FALSE}
    686      * or {@link Phone#LTE_ON_CDMA_TRUE}
    687      *
    688      * @hide
    689      */
    690     public int getLteOnCdmaMode() {
    691         try {
    692             return getITelephony().getLteOnCdmaMode();
    693         } catch (RemoteException ex) {
    694             // Assume no ICC card if remote exception which shouldn't happen
    695             return Phone.LTE_ON_CDMA_UNKNOWN;
    696         } catch (NullPointerException ex) {
    697             // This could happen before phone restarts due to crashing
    698             return Phone.LTE_ON_CDMA_UNKNOWN;
    699         }
    700     }
    701 
    702     //
    703     //
    704     // Subscriber Info
    705     //
    706     //
    707 
    708     /**
    709      * Returns the unique subscriber ID, for example, the IMSI for a GSM phone.
    710      * Return null if it is unavailable.
    711      * <p>
    712      * Requires Permission:
    713      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    714      */
    715     public String getSubscriberId() {
    716         try {
    717             return getSubscriberInfo().getSubscriberId();
    718         } catch (RemoteException ex) {
    719             return null;
    720         } catch (NullPointerException ex) {
    721             // This could happen before phone restarts due to crashing
    722             return null;
    723         }
    724     }
    725 
    726     /**
    727      * Returns the phone number string for line 1, for example, the MSISDN
    728      * for a GSM phone. Return null if it is unavailable.
    729      * <p>
    730      * Requires Permission:
    731      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    732      */
    733     public String getLine1Number() {
    734         try {
    735             return getSubscriberInfo().getLine1Number();
    736         } catch (RemoteException ex) {
    737             return null;
    738         } catch (NullPointerException ex) {
    739             // This could happen before phone restarts due to crashing
    740             return null;
    741         }
    742     }
    743 
    744     /**
    745      * Returns the alphabetic identifier associated with the line 1 number.
    746      * Return null if it is unavailable.
    747      * <p>
    748      * Requires Permission:
    749      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    750      * @hide
    751      * nobody seems to call this.
    752      */
    753     public String getLine1AlphaTag() {
    754         try {
    755             return getSubscriberInfo().getLine1AlphaTag();
    756         } catch (RemoteException ex) {
    757             return null;
    758         } catch (NullPointerException ex) {
    759             // This could happen before phone restarts due to crashing
    760             return null;
    761         }
    762     }
    763 
    764     /**
    765      * Returns the MSISDN string.
    766      * for a GSM phone. Return null if it is unavailable.
    767      * <p>
    768      * Requires Permission:
    769      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    770      *
    771      * @hide
    772      */
    773     public String getMsisdn() {
    774         try {
    775             return getSubscriberInfo().getMsisdn();
    776         } catch (RemoteException ex) {
    777             return null;
    778         } catch (NullPointerException ex) {
    779             // This could happen before phone restarts due to crashing
    780             return null;
    781         }
    782     }
    783 
    784     /**
    785      * Returns the voice mail number. Return null if it is unavailable.
    786      * <p>
    787      * Requires Permission:
    788      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    789      */
    790     public String getVoiceMailNumber() {
    791         try {
    792             return getSubscriberInfo().getVoiceMailNumber();
    793         } catch (RemoteException ex) {
    794             return null;
    795         } catch (NullPointerException ex) {
    796             // This could happen before phone restarts due to crashing
    797             return null;
    798         }
    799     }
    800 
    801     /**
    802      * Returns the complete voice mail number. Return null if it is unavailable.
    803      * <p>
    804      * Requires Permission:
    805      *   {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED}
    806      *
    807      * @hide
    808      */
    809     public String getCompleteVoiceMailNumber() {
    810         try {
    811             return getSubscriberInfo().getCompleteVoiceMailNumber();
    812         } catch (RemoteException ex) {
    813             return null;
    814         } catch (NullPointerException ex) {
    815             // This could happen before phone restarts due to crashing
    816             return null;
    817         }
    818     }
    819 
    820     /**
    821      * Returns the voice mail count. Return 0 if unavailable.
    822      * <p>
    823      * Requires Permission:
    824      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    825      * @hide
    826      */
    827     public int getVoiceMessageCount() {
    828         try {
    829             return getITelephony().getVoiceMessageCount();
    830         } catch (RemoteException ex) {
    831             return 0;
    832         } catch (NullPointerException ex) {
    833             // This could happen before phone restarts due to crashing
    834             return 0;
    835         }
    836     }
    837 
    838     /**
    839      * Retrieves the alphabetic identifier associated with the voice
    840      * mail number.
    841      * <p>
    842      * Requires Permission:
    843      *   {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE}
    844      */
    845     public String getVoiceMailAlphaTag() {
    846         try {
    847             return getSubscriberInfo().getVoiceMailAlphaTag();
    848         } catch (RemoteException ex) {
    849             return null;
    850         } catch (NullPointerException ex) {
    851             // This could happen before phone restarts due to crashing
    852             return null;
    853         }
    854     }
    855 
    856     /**
    857      * Returns the IMS private user identity (IMPI) that was loaded from the ISIM.
    858      * @return the IMPI, or null if not present or not loaded
    859      * @hide
    860      */
    861     public String getIsimImpi() {
    862         try {
    863             return getSubscriberInfo().getIsimImpi();
    864         } catch (RemoteException ex) {
    865             return null;
    866         } catch (NullPointerException ex) {
    867             // This could happen before phone restarts due to crashing
    868             return null;
    869         }
    870     }
    871 
    872     /**
    873      * Returns the IMS home network domain name that was loaded from the ISIM.
    874      * @return the IMS domain name, or null if not present or not loaded
    875      * @hide
    876      */
    877     public String getIsimDomain() {
    878         try {
    879             return getSubscriberInfo().getIsimDomain();
    880         } catch (RemoteException ex) {
    881             return null;
    882         } catch (NullPointerException ex) {
    883             // This could happen before phone restarts due to crashing
    884             return null;
    885         }
    886     }
    887 
    888     /**
    889      * Returns the IMS public user identities (IMPU) that were loaded from the ISIM.
    890      * @return an array of IMPU strings, with one IMPU per string, or null if
    891      *      not present or not loaded
    892      * @hide
    893      */
    894     public String[] getIsimImpu() {
    895         try {
    896             return getSubscriberInfo().getIsimImpu();
    897         } catch (RemoteException ex) {
    898             return null;
    899         } catch (NullPointerException ex) {
    900             // This could happen before phone restarts due to crashing
    901             return null;
    902         }
    903     }
    904 
    905     private IPhoneSubInfo getSubscriberInfo() {
    906         // get it each time because that process crashes a lot
    907         return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo"));
    908     }
    909 
    910 
    911     /** Device call state: No activity. */
    912     public static final int CALL_STATE_IDLE = 0;
    913     /** Device call state: Ringing. A new call arrived and is
    914      *  ringing or waiting. In the latter case, another call is
    915      *  already active. */
    916     public static final int CALL_STATE_RINGING = 1;
    917     /** Device call state: Off-hook. At least one call exists
    918       * that is dialing, active, or on hold, and no calls are ringing
    919       * or waiting. */
    920     public static final int CALL_STATE_OFFHOOK = 2;
    921 
    922     /**
    923      * Returns a constant indicating the call state (cellular) on the device.
    924      */
    925     public int getCallState() {
    926         try {
    927             return getITelephony().getCallState();
    928         } catch (RemoteException ex) {
    929             // the phone process is restarting.
    930             return CALL_STATE_IDLE;
    931         } catch (NullPointerException ex) {
    932           // the phone process is restarting.
    933           return CALL_STATE_IDLE;
    934       }
    935     }
    936 
    937     /** Data connection activity: No traffic. */
    938     public static final int DATA_ACTIVITY_NONE = 0x00000000;
    939     /** Data connection activity: Currently receiving IP PPP traffic. */
    940     public static final int DATA_ACTIVITY_IN = 0x00000001;
    941     /** Data connection activity: Currently sending IP PPP traffic. */
    942     public static final int DATA_ACTIVITY_OUT = 0x00000002;
    943     /** Data connection activity: Currently both sending and receiving
    944      *  IP PPP traffic. */
    945     public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT;
    946     /**
    947      * Data connection is active, but physical link is down
    948      */
    949     public static final int DATA_ACTIVITY_DORMANT = 0x00000004;
    950 
    951     /**
    952      * Returns a constant indicating the type of activity on a data connection
    953      * (cellular).
    954      *
    955      * @see #DATA_ACTIVITY_NONE
    956      * @see #DATA_ACTIVITY_IN
    957      * @see #DATA_ACTIVITY_OUT
    958      * @see #DATA_ACTIVITY_INOUT
    959      * @see #DATA_ACTIVITY_DORMANT
    960      */
    961     public int getDataActivity() {
    962         try {
    963             return getITelephony().getDataActivity();
    964         } catch (RemoteException ex) {
    965             // the phone process is restarting.
    966             return DATA_ACTIVITY_NONE;
    967         } catch (NullPointerException ex) {
    968           // the phone process is restarting.
    969           return DATA_ACTIVITY_NONE;
    970       }
    971     }
    972 
    973     /** Data connection state: Unknown.  Used before we know the state.
    974      * @hide
    975      */
    976     public static final int DATA_UNKNOWN        = -1;
    977     /** Data connection state: Disconnected. IP traffic not available. */
    978     public static final int DATA_DISCONNECTED   = 0;
    979     /** Data connection state: Currently setting up a data connection. */
    980     public static final int DATA_CONNECTING     = 1;
    981     /** Data connection state: Connected. IP traffic should be available. */
    982     public static final int DATA_CONNECTED      = 2;
    983     /** Data connection state: Suspended. The connection is up, but IP
    984      * traffic is temporarily unavailable. For example, in a 2G network,
    985      * data activity may be suspended when a voice call arrives. */
    986     public static final int DATA_SUSPENDED      = 3;
    987 
    988     /**
    989      * Returns a constant indicating the current data connection state
    990      * (cellular).
    991      *
    992      * @see #DATA_DISCONNECTED
    993      * @see #DATA_CONNECTING
    994      * @see #DATA_CONNECTED
    995      * @see #DATA_SUSPENDED
    996      */
    997     public int getDataState() {
    998         try {
    999             return getITelephony().getDataState();
   1000         } catch (RemoteException ex) {
   1001             // the phone process is restarting.
   1002             return DATA_DISCONNECTED;
   1003         } catch (NullPointerException ex) {
   1004             return DATA_DISCONNECTED;
   1005         }
   1006     }
   1007 
   1008     private ITelephony getITelephony() {
   1009         return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE));
   1010     }
   1011 
   1012     //
   1013     //
   1014     // PhoneStateListener
   1015     //
   1016     //
   1017 
   1018     /**
   1019      * Registers a listener object to receive notification of changes
   1020      * in specified telephony states.
   1021      * <p>
   1022      * To register a listener, pass a {@link PhoneStateListener}
   1023      * and specify at least one telephony state of interest in
   1024      * the events argument.
   1025      *
   1026      * At registration, and when a specified telephony state
   1027      * changes, the telephony manager invokes the appropriate
   1028      * callback method on the listener object and passes the
   1029      * current (udpated) values.
   1030      * <p>
   1031      * To unregister a listener, pass the listener object and set the
   1032      * events argument to
   1033      * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0).
   1034      *
   1035      * @param listener The {@link PhoneStateListener} object to register
   1036      *                 (or unregister)
   1037      * @param events The telephony state(s) of interest to the listener,
   1038      *               as a bitwise-OR combination of {@link PhoneStateListener}
   1039      *               LISTEN_ flags.
   1040      */
   1041     public void listen(PhoneStateListener listener, int events) {
   1042         String pkgForDebug = sContext != null ? sContext.getPackageName() : "<unknown>";
   1043         try {
   1044             Boolean notifyNow = (getITelephony() != null);
   1045             sRegistry.listen(pkgForDebug, listener.callback, events, notifyNow);
   1046         } catch (RemoteException ex) {
   1047             // system process dead
   1048         } catch (NullPointerException ex) {
   1049             // system process dead
   1050         }
   1051     }
   1052 
   1053     /**
   1054      * Returns the CDMA ERI icon index to display
   1055      *
   1056      * @hide
   1057      */
   1058     public int getCdmaEriIconIndex() {
   1059         try {
   1060             return getITelephony().getCdmaEriIconIndex();
   1061         } catch (RemoteException ex) {
   1062             // the phone process is restarting.
   1063             return -1;
   1064         } catch (NullPointerException ex) {
   1065             return -1;
   1066         }
   1067     }
   1068 
   1069     /**
   1070      * Returns the CDMA ERI icon mode,
   1071      * 0 - ON
   1072      * 1 - FLASHING
   1073      *
   1074      * @hide
   1075      */
   1076     public int getCdmaEriIconMode() {
   1077         try {
   1078             return getITelephony().getCdmaEriIconMode();
   1079         } catch (RemoteException ex) {
   1080             // the phone process is restarting.
   1081             return -1;
   1082         } catch (NullPointerException ex) {
   1083             return -1;
   1084         }
   1085     }
   1086 
   1087     /**
   1088      * Returns the CDMA ERI text,
   1089      *
   1090      * @hide
   1091      */
   1092     public String getCdmaEriText() {
   1093         try {
   1094             return getITelephony().getCdmaEriText();
   1095         } catch (RemoteException ex) {
   1096             // the phone process is restarting.
   1097             return null;
   1098         } catch (NullPointerException ex) {
   1099             return null;
   1100         }
   1101     }
   1102 
   1103     /**
   1104      * @return true if the current device is "voice capable".
   1105      * <p>
   1106      * "Voice capable" means that this device supports circuit-switched
   1107      * (i.e. voice) phone calls over the telephony network, and is allowed
   1108      * to display the in-call UI while a cellular voice call is active.
   1109      * This will be false on "data only" devices which can't make voice
   1110      * calls and don't support any in-call UI.
   1111      * <p>
   1112      * Note: the meaning of this flag is subtly different from the
   1113      * PackageManager.FEATURE_TELEPHONY system feature, which is available
   1114      * on any device with a telephony radio, even if the device is
   1115      * data-only.
   1116      *
   1117      * @hide pending API review
   1118      */
   1119     public boolean isVoiceCapable() {
   1120         if (sContext == null) return true;
   1121         return sContext.getResources().getBoolean(
   1122                 com.android.internal.R.bool.config_voice_capable);
   1123     }
   1124 
   1125     /**
   1126      * @return true if the current device supports sms service.
   1127      * <p>
   1128      * If true, this means that the device supports both sending and
   1129      * receiving sms via the telephony network.
   1130      * <p>
   1131      * Note: Voicemail waiting sms, cell broadcasting sms, and MMS are
   1132      *       disabled when device doesn't support sms.
   1133      *
   1134      * @hide pending API review
   1135      */
   1136     public boolean isSmsCapable() {
   1137         if (sContext == null) return true;
   1138         return sContext.getResources().getBoolean(
   1139                 com.android.internal.R.bool.config_sms_capable);
   1140     }
   1141 }
   1142