TelephonyManager.java revision 9e4ba121dc5168398bb29badfa2b35a57b1077a1
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 17package android.telephony; 18 19import android.annotation.SdkConstant; 20import android.annotation.SdkConstant.SdkConstantType; 21import android.content.Context; 22import android.os.Bundle; 23import android.os.RemoteException; 24import android.os.ServiceManager; 25import android.os.SystemProperties; 26 27import com.android.internal.telephony.IPhoneSubInfo; 28import com.android.internal.telephony.ITelephony; 29import com.android.internal.telephony.ITelephonyRegistry; 30import com.android.internal.telephony.Phone; 31import com.android.internal.telephony.PhoneFactory; 32import com.android.internal.telephony.RILConstants; 33import com.android.internal.telephony.TelephonyProperties; 34 35import 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 */ 55public class TelephonyManager { 56 private static final String TAG = "TelephonyManager"; 57 58 private Context mContext; 59 private ITelephonyRegistry mRegistry; 60 61 /** @hide */ 62 public TelephonyManager(Context context) { 63 mContext = context; 64 mRegistry = ITelephonyRegistry.Stub.asInterface(ServiceManager.getService( 65 "telephony.registry")); 66 } 67 68 /** @hide */ 69 private TelephonyManager() { 70 } 71 72 private static TelephonyManager sInstance = new TelephonyManager(); 73 74 /** @hide */ 75 public static TelephonyManager getDefault() { 76 return sInstance; 77 } 78 79 80 // 81 // Broadcast Intent actions 82 // 83 84 /** 85 * Broadcast intent action indicating that the call state (cellular) 86 * on the device has changed. 87 * 88 * <p> 89 * The {@link #EXTRA_STATE} extra indicates the new call state. 90 * If the new state is RINGING, a second extra 91 * {@link #EXTRA_INCOMING_NUMBER} provides the incoming phone number as 92 * a String. 93 * 94 * <p class="note"> 95 * Requires the READ_PHONE_STATE permission. 96 * 97 * <p class="note"> 98 * This was a {@link android.content.Context#sendStickyBroadcast sticky} 99 * broadcast in version 1.0, but it is no longer sticky. 100 * Instead, use {@link #getCallState} to synchronously query the current call state. 101 * 102 * @see #EXTRA_STATE 103 * @see #EXTRA_INCOMING_NUMBER 104 * @see #getCallState 105 */ 106 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 107 public static final String ACTION_PHONE_STATE_CHANGED = 108 "android.intent.action.PHONE_STATE"; 109 110 /** 111 * The lookup key used with the {@link #ACTION_PHONE_STATE_CHANGED} broadcast 112 * for a String containing the new call state. 113 * 114 * @see #EXTRA_STATE_IDLE 115 * @see #EXTRA_STATE_RINGING 116 * @see #EXTRA_STATE_OFFHOOK 117 * 118 * <p class="note"> 119 * Retrieve with 120 * {@link android.content.Intent#getStringExtra(String)}. 121 */ 122 public static final String EXTRA_STATE = Phone.STATE_KEY; 123 124 /** 125 * Value used with {@link #EXTRA_STATE} corresponding to 126 * {@link #CALL_STATE_IDLE}. 127 */ 128 public static final String EXTRA_STATE_IDLE = Phone.State.IDLE.toString(); 129 130 /** 131 * Value used with {@link #EXTRA_STATE} corresponding to 132 * {@link #CALL_STATE_RINGING}. 133 */ 134 public static final String EXTRA_STATE_RINGING = Phone.State.RINGING.toString(); 135 136 /** 137 * Value used with {@link #EXTRA_STATE} corresponding to 138 * {@link #CALL_STATE_OFFHOOK}. 139 */ 140 public static final String EXTRA_STATE_OFFHOOK = Phone.State.OFFHOOK.toString(); 141 142 /** 143 * The lookup key used with the {@link #ACTION_PHONE_STATE_CHANGED} broadcast 144 * for a String containing the incoming phone number. 145 * Only valid when the new call state is RINGING. 146 * 147 * <p class="note"> 148 * Retrieve with 149 * {@link android.content.Intent#getStringExtra(String)}. 150 */ 151 public static final String EXTRA_INCOMING_NUMBER = "incoming_number"; 152 153 154 // 155 // 156 // Device Info 157 // 158 // 159 160 /** 161 * Returns the software version number for the device, for example, 162 * the IMEI/SV for GSM phones. Return null if the software version is 163 * not available. 164 * 165 * <p>Requires Permission: 166 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 167 */ 168 public String getDeviceSoftwareVersion() { 169 try { 170 return getSubscriberInfo().getDeviceSvn(); 171 } catch (RemoteException ex) { 172 return null; 173 } catch (NullPointerException ex) { 174 return null; 175 } 176 } 177 178 /** 179 * Returns the unique device ID, for example, the IMEI for GSM and the MEID 180 * or ESN for CDMA phones. Return null if device ID is not available. 181 * 182 * <p>Requires Permission: 183 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 184 */ 185 public String getDeviceId() { 186 try { 187 return getSubscriberInfo().getDeviceId(); 188 } catch (RemoteException ex) { 189 return null; 190 } catch (NullPointerException ex) { 191 return null; 192 } 193 } 194 195 /** 196 * Returns the current location of the device. 197 * Return null if current location is not available. 198 * 199 * <p>Requires Permission: 200 * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_COARSE_LOCATION} or 201 * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_FINE_LOCATION}. 202 */ 203 public CellLocation getCellLocation() { 204 try { 205 Bundle bundle = getITelephony().getCellLocation(); 206 CellLocation cl = CellLocation.newFromBundle(bundle); 207 if (cl.isEmpty()) 208 return null; 209 return cl; 210 } catch (RemoteException ex) { 211 return null; 212 } catch (NullPointerException ex) { 213 return null; 214 } 215 } 216 217 /** 218 * Enables location update notifications. {@link PhoneStateListener#onCellLocationChanged 219 * PhoneStateListener.onCellLocationChanged} will be called on location updates. 220 * 221 * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES 222 * CONTROL_LOCATION_UPDATES} 223 * 224 * @hide 225 */ 226 public void enableLocationUpdates() { 227 try { 228 getITelephony().enableLocationUpdates(); 229 } catch (RemoteException ex) { 230 } catch (NullPointerException ex) { 231 } 232 } 233 234 /** 235 * Disables location update notifications. {@link PhoneStateListener#onCellLocationChanged 236 * PhoneStateListener.onCellLocationChanged} will be called on location updates. 237 * 238 * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES 239 * CONTROL_LOCATION_UPDATES} 240 * 241 * @hide 242 */ 243 public void disableLocationUpdates() { 244 try { 245 getITelephony().disableLocationUpdates(); 246 } catch (RemoteException ex) { 247 } catch (NullPointerException ex) { 248 } 249 } 250 251 /** 252 * Returns the neighboring cell information of the device. 253 * 254 * @return List of NeighboringCellInfo or null if info unavailable. 255 * 256 * <p>Requires Permission: 257 * (@link android.Manifest.permission#ACCESS_COARSE_UPDATES} 258 */ 259 public List<NeighboringCellInfo> getNeighboringCellInfo() { 260 try { 261 return getITelephony().getNeighboringCellInfo(); 262 } catch (RemoteException ex) { 263 return null; 264 } catch (NullPointerException ex) { 265 return null; 266 } 267 } 268 269 /** No phone radio. */ 270 public static final int PHONE_TYPE_NONE = Phone.PHONE_TYPE_NONE; 271 /** Phone radio is GSM. */ 272 public static final int PHONE_TYPE_GSM = Phone.PHONE_TYPE_GSM; 273 /** Phone radio is CDMA. */ 274 public static final int PHONE_TYPE_CDMA = Phone.PHONE_TYPE_CDMA; 275 /** Phone is via SIP. */ 276 public static final int PHONE_TYPE_SIP = Phone.PHONE_TYPE_SIP; 277 278 /** 279 * Returns a constant indicating the device phone type. This 280 * indicates the type of radio used to transmit voice calls. 281 * 282 * @see #PHONE_TYPE_NONE 283 * @see #PHONE_TYPE_GSM 284 * @see #PHONE_TYPE_CDMA 285 * @see #PHONE_TYPE_SIP 286 */ 287 public int getPhoneType() { 288 try{ 289 if (!isVoiceCapable()) { 290 return PHONE_TYPE_NONE; 291 } 292 ITelephony telephony = getITelephony(); 293 if (telephony != null) { 294 return telephony.getActivePhoneType(); 295 } else { 296 // This can happen when the ITelephony interface is not up yet. 297 return getPhoneTypeFromProperty(); 298 } 299 } catch (RemoteException ex) { 300 // This shouldn't happen in the normal case, as a backup we 301 // read from the system property. 302 return getPhoneTypeFromProperty(); 303 } catch (NullPointerException ex) { 304 // This shouldn't happen in the normal case, as a backup we 305 // read from the system property. 306 return getPhoneTypeFromProperty(); 307 } 308 } 309 310 311 private int getPhoneTypeFromProperty() { 312 int type = 313 SystemProperties.getInt(TelephonyProperties.CURRENT_ACTIVE_PHONE, 314 getPhoneTypeFromNetworkType()); 315 return type; 316 } 317 318 private int getPhoneTypeFromNetworkType() { 319 // When the system property CURRENT_ACTIVE_PHONE, has not been set, 320 // use the system property for default network type. 321 // This is a fail safe, and can only happen at first boot. 322 int mode = SystemProperties.getInt("ro.telephony.default_network", -1); 323 if (mode == -1) 324 return PHONE_TYPE_NONE; 325 return PhoneFactory.getPhoneType(mode); 326 } 327 // 328 // 329 // Current Network 330 // 331 // 332 333 /** 334 * Returns the alphabetic name of current registered operator. 335 * <p> 336 * Availability: Only when user is registered to a network. Result may be 337 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 338 * on a CDMA network). 339 */ 340 public String getNetworkOperatorName() { 341 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA); 342 } 343 344 /** 345 * Returns the numeric name (MCC+MNC) of current registered operator. 346 * <p> 347 * Availability: Only when user is registered to a network. Result may be 348 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 349 * on a CDMA network). 350 */ 351 public String getNetworkOperator() { 352 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC); 353 } 354 355 /** 356 * Returns true if the device is considered roaming on the current 357 * network, for GSM purposes. 358 * <p> 359 * Availability: Only when user registered to a network. 360 */ 361 public boolean isNetworkRoaming() { 362 return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING)); 363 } 364 365 /** 366 * Returns the ISO country code equivalent of the current registered 367 * operator's MCC (Mobile Country Code). 368 * <p> 369 * Availability: Only when user is registered to a network. Result may be 370 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 371 * on a CDMA network). 372 */ 373 public String getNetworkCountryIso() { 374 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY); 375 } 376 377 /** Network type is unknown */ 378 public static final int NETWORK_TYPE_UNKNOWN = 0; 379 /** Current network is GPRS */ 380 public static final int NETWORK_TYPE_GPRS = 1; 381 /** Current network is EDGE */ 382 public static final int NETWORK_TYPE_EDGE = 2; 383 /** Current network is UMTS */ 384 public static final int NETWORK_TYPE_UMTS = 3; 385 /** Current network is CDMA: Either IS95A or IS95B*/ 386 public static final int NETWORK_TYPE_CDMA = 4; 387 /** Current network is EVDO revision 0*/ 388 public static final int NETWORK_TYPE_EVDO_0 = 5; 389 /** Current network is EVDO revision A*/ 390 public static final int NETWORK_TYPE_EVDO_A = 6; 391 /** Current network is 1xRTT*/ 392 public static final int NETWORK_TYPE_1xRTT = 7; 393 /** Current network is HSDPA */ 394 public static final int NETWORK_TYPE_HSDPA = 8; 395 /** Current network is HSUPA */ 396 public static final int NETWORK_TYPE_HSUPA = 9; 397 /** Current network is HSPA */ 398 public static final int NETWORK_TYPE_HSPA = 10; 399 /** Current network is iDen */ 400 public static final int NETWORK_TYPE_IDEN = 11; 401 /** Current network is EVDO revision B*/ 402 public static final int NETWORK_TYPE_EVDO_B = 12; 403 /** Current network is LTE */ 404 public static final int NETWORK_TYPE_LTE = 13; 405 /** Current network is eHRPD */ 406 public static final int NETWORK_TYPE_EHRPD = 14; 407 /** Current network is HSPA+ 408 * @hide */ 409 public static final int NETWORK_TYPE_HSPAP = 15; 410 411 /** 412 * Returns a constant indicating the radio technology (network type) 413 * currently in use on the device for data transmission. 414 * @return the network type 415 * 416 * @see #NETWORK_TYPE_UNKNOWN 417 * @see #NETWORK_TYPE_GPRS 418 * @see #NETWORK_TYPE_EDGE 419 * @see #NETWORK_TYPE_UMTS 420 * @see #NETWORK_TYPE_HSDPA 421 * @see #NETWORK_TYPE_HSUPA 422 * @see #NETWORK_TYPE_HSPA 423 * @see #NETWORK_TYPE_CDMA 424 * @see #NETWORK_TYPE_EVDO_0 425 * @see #NETWORK_TYPE_EVDO_A 426 * @see #NETWORK_TYPE_EVDO_B 427 * @see #NETWORK_TYPE_1xRTT 428 * @see #NETWORK_TYPE_IDEN 429 * @see #NETWORK_TYPE_LTE 430 * @see #NETWORK_TYPE_EHRPD 431 */ 432 public int getNetworkType() { 433 try{ 434 ITelephony telephony = getITelephony(); 435 if (telephony != null) { 436 return telephony.getNetworkType(); 437 } else { 438 // This can happen when the ITelephony interface is not up yet. 439 return NETWORK_TYPE_UNKNOWN; 440 } 441 } catch(RemoteException ex) { 442 // This shouldn't happen in the normal case 443 return NETWORK_TYPE_UNKNOWN; 444 } catch (NullPointerException ex) { 445 // This could happen before phone restarts due to crashing 446 return NETWORK_TYPE_UNKNOWN; 447 } 448 } 449 450 /** 451 * Returns a string representation of the radio technology (network type) 452 * currently in use on the device. 453 * @return the name of the radio technology 454 * 455 * @hide pending API council review 456 */ 457 public String getNetworkTypeName() { 458 switch (getNetworkType()) { 459 case NETWORK_TYPE_GPRS: 460 return "GPRS"; 461 case NETWORK_TYPE_EDGE: 462 return "EDGE"; 463 case NETWORK_TYPE_UMTS: 464 return "UMTS"; 465 case NETWORK_TYPE_HSDPA: 466 return "HSDPA"; 467 case NETWORK_TYPE_HSUPA: 468 return "HSUPA"; 469 case NETWORK_TYPE_HSPA: 470 return "HSPA"; 471 case NETWORK_TYPE_CDMA: 472 return "CDMA"; 473 case NETWORK_TYPE_EVDO_0: 474 return "CDMA - EvDo rev. 0"; 475 case NETWORK_TYPE_EVDO_A: 476 return "CDMA - EvDo rev. A"; 477 case NETWORK_TYPE_EVDO_B: 478 return "CDMA - EvDo rev. B"; 479 case NETWORK_TYPE_1xRTT: 480 return "CDMA - 1xRTT"; 481 case NETWORK_TYPE_LTE: 482 return "LTE"; 483 case NETWORK_TYPE_EHRPD: 484 return "CDMA - eHRPD"; 485 case NETWORK_TYPE_IDEN: 486 return "iDEN"; 487 default: 488 return "UNKNOWN"; 489 } 490 } 491 492 // 493 // 494 // SIM Card 495 // 496 // 497 498 /** SIM card state: Unknown. Signifies that the SIM is in transition 499 * between states. For example, when the user inputs the SIM pin 500 * under PIN_REQUIRED state, a query for sim status returns 501 * this state before turning to SIM_STATE_READY. */ 502 public static final int SIM_STATE_UNKNOWN = 0; 503 /** SIM card state: no SIM card is available in the device */ 504 public static final int SIM_STATE_ABSENT = 1; 505 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 506 public static final int SIM_STATE_PIN_REQUIRED = 2; 507 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 508 public static final int SIM_STATE_PUK_REQUIRED = 3; 509 /** SIM card state: Locked: requries a network PIN to unlock */ 510 public static final int SIM_STATE_NETWORK_LOCKED = 4; 511 /** SIM card state: Ready */ 512 public static final int SIM_STATE_READY = 5; 513 514 /** 515 * @return true if a ICC card is present 516 */ 517 public boolean hasIccCard() { 518 try { 519 return getITelephony().hasIccCard(); 520 } catch (RemoteException ex) { 521 // Assume no ICC card if remote exception which shouldn't happen 522 return false; 523 } catch (NullPointerException ex) { 524 // This could happen before phone restarts due to crashing 525 return false; 526 } 527 } 528 529 /** 530 * Returns a constant indicating the state of the 531 * device SIM card. 532 * 533 * @see #SIM_STATE_UNKNOWN 534 * @see #SIM_STATE_ABSENT 535 * @see #SIM_STATE_PIN_REQUIRED 536 * @see #SIM_STATE_PUK_REQUIRED 537 * @see #SIM_STATE_NETWORK_LOCKED 538 * @see #SIM_STATE_READY 539 */ 540 public int getSimState() { 541 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 542 if ("ABSENT".equals(prop)) { 543 return SIM_STATE_ABSENT; 544 } 545 else if ("PIN_REQUIRED".equals(prop)) { 546 return SIM_STATE_PIN_REQUIRED; 547 } 548 else if ("PUK_REQUIRED".equals(prop)) { 549 return SIM_STATE_PUK_REQUIRED; 550 } 551 else if ("NETWORK_LOCKED".equals(prop)) { 552 return SIM_STATE_NETWORK_LOCKED; 553 } 554 else if ("READY".equals(prop)) { 555 return SIM_STATE_READY; 556 } 557 else { 558 return SIM_STATE_UNKNOWN; 559 } 560 } 561 562 /** 563 * Returns the MCC+MNC (mobile country code + mobile network code) of the 564 * provider of the SIM. 5 or 6 decimal digits. 565 * <p> 566 * Availability: SIM state must be {@link #SIM_STATE_READY} 567 * 568 * @see #getSimState 569 */ 570 public String getSimOperator() { 571 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 572 } 573 574 /** 575 * Returns the Service Provider Name (SPN). 576 * <p> 577 * Availability: SIM state must be {@link #SIM_STATE_READY} 578 * 579 * @see #getSimState 580 */ 581 public String getSimOperatorName() { 582 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 583 } 584 585 /** 586 * Returns the ISO country code equivalent for the SIM provider's country code. 587 */ 588 public String getSimCountryIso() { 589 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 590 } 591 592 /** 593 * Returns the serial number of the SIM, if applicable. Return null if it is 594 * unavailable. 595 * <p> 596 * Requires Permission: 597 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 598 */ 599 public String getSimSerialNumber() { 600 try { 601 return getSubscriberInfo().getIccSerialNumber(); 602 } catch (RemoteException ex) { 603 return null; 604 } catch (NullPointerException ex) { 605 // This could happen before phone restarts due to crashing 606 return null; 607 } 608 } 609 610 // 611 // 612 // Subscriber Info 613 // 614 // 615 616 /** 617 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 618 * Return null if it is unavailable. 619 * <p> 620 * Requires Permission: 621 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 622 */ 623 public String getSubscriberId() { 624 try { 625 return getSubscriberInfo().getSubscriberId(); 626 } catch (RemoteException ex) { 627 return null; 628 } catch (NullPointerException ex) { 629 // This could happen before phone restarts due to crashing 630 return null; 631 } 632 } 633 634 /** 635 * Returns the phone number string for line 1, for example, the MSISDN 636 * for a GSM phone. Return null if it is unavailable. 637 * <p> 638 * Requires Permission: 639 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 640 */ 641 public String getLine1Number() { 642 try { 643 return getSubscriberInfo().getLine1Number(); 644 } catch (RemoteException ex) { 645 return null; 646 } catch (NullPointerException ex) { 647 // This could happen before phone restarts due to crashing 648 return null; 649 } 650 } 651 652 /** 653 * Returns the alphabetic identifier associated with the line 1 number. 654 * Return null if it is unavailable. 655 * <p> 656 * Requires Permission: 657 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 658 * @hide 659 * nobody seems to call this. 660 */ 661 public String getLine1AlphaTag() { 662 try { 663 return getSubscriberInfo().getLine1AlphaTag(); 664 } catch (RemoteException ex) { 665 return null; 666 } catch (NullPointerException ex) { 667 // This could happen before phone restarts due to crashing 668 return null; 669 } 670 } 671 672 /** 673 * Returns the voice mail number. Return null if it is unavailable. 674 * <p> 675 * Requires Permission: 676 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 677 */ 678 public String getVoiceMailNumber() { 679 try { 680 return getSubscriberInfo().getVoiceMailNumber(); 681 } catch (RemoteException ex) { 682 return null; 683 } catch (NullPointerException ex) { 684 // This could happen before phone restarts due to crashing 685 return null; 686 } 687 } 688 689 /** 690 * Returns the complete voice mail number. Return null if it is unavailable. 691 * <p> 692 * Requires Permission: 693 * {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED} 694 * 695 * @hide 696 */ 697 public String getCompleteVoiceMailNumber() { 698 try { 699 return getSubscriberInfo().getCompleteVoiceMailNumber(); 700 } catch (RemoteException ex) { 701 return null; 702 } catch (NullPointerException ex) { 703 // This could happen before phone restarts due to crashing 704 return null; 705 } 706 } 707 708 /** 709 * Returns the voice mail count. Return 0 if unavailable. 710 * <p> 711 * Requires Permission: 712 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 713 * @hide 714 */ 715 public int getVoiceMessageCount() { 716 try { 717 return getITelephony().getVoiceMessageCount(); 718 } catch (RemoteException ex) { 719 return 0; 720 } catch (NullPointerException ex) { 721 // This could happen before phone restarts due to crashing 722 return 0; 723 } 724 } 725 726 /** 727 * Retrieves the alphabetic identifier associated with the voice 728 * mail number. 729 * <p> 730 * Requires Permission: 731 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 732 */ 733 public String getVoiceMailAlphaTag() { 734 try { 735 return getSubscriberInfo().getVoiceMailAlphaTag(); 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 private IPhoneSubInfo getSubscriberInfo() { 745 // get it each time because that process crashes a lot 746 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 747 } 748 749 750 /** Device call state: No activity. */ 751 public static final int CALL_STATE_IDLE = 0; 752 /** Device call state: Ringing. A new call arrived and is 753 * ringing or waiting. In the latter case, another call is 754 * already active. */ 755 public static final int CALL_STATE_RINGING = 1; 756 /** Device call state: Off-hook. At least one call exists 757 * that is dialing, active, or on hold, and no calls are ringing 758 * or waiting. */ 759 public static final int CALL_STATE_OFFHOOK = 2; 760 761 /** 762 * Returns a constant indicating the call state (cellular) on the device. 763 */ 764 public int getCallState() { 765 try { 766 return getITelephony().getCallState(); 767 } catch (RemoteException ex) { 768 // the phone process is restarting. 769 return CALL_STATE_IDLE; 770 } catch (NullPointerException ex) { 771 // the phone process is restarting. 772 return CALL_STATE_IDLE; 773 } 774 } 775 776 /** Data connection activity: No traffic. */ 777 public static final int DATA_ACTIVITY_NONE = 0x00000000; 778 /** Data connection activity: Currently receiving IP PPP traffic. */ 779 public static final int DATA_ACTIVITY_IN = 0x00000001; 780 /** Data connection activity: Currently sending IP PPP traffic. */ 781 public static final int DATA_ACTIVITY_OUT = 0x00000002; 782 /** Data connection activity: Currently both sending and receiving 783 * IP PPP traffic. */ 784 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 785 /** 786 * Data connection is active, but physical link is down 787 */ 788 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 789 790 /** 791 * Returns a constant indicating the type of activity on a data connection 792 * (cellular). 793 * 794 * @see #DATA_ACTIVITY_NONE 795 * @see #DATA_ACTIVITY_IN 796 * @see #DATA_ACTIVITY_OUT 797 * @see #DATA_ACTIVITY_INOUT 798 * @see #DATA_ACTIVITY_DORMANT 799 */ 800 public int getDataActivity() { 801 try { 802 return getITelephony().getDataActivity(); 803 } catch (RemoteException ex) { 804 // the phone process is restarting. 805 return DATA_ACTIVITY_NONE; 806 } catch (NullPointerException ex) { 807 // the phone process is restarting. 808 return DATA_ACTIVITY_NONE; 809 } 810 } 811 812 /** Data connection state: Unknown. Used before we know the state. 813 * @hide 814 */ 815 public static final int DATA_UNKNOWN = -1; 816 /** Data connection state: Disconnected. IP traffic not available. */ 817 public static final int DATA_DISCONNECTED = 0; 818 /** Data connection state: Currently setting up a data connection. */ 819 public static final int DATA_CONNECTING = 1; 820 /** Data connection state: Connected. IP traffic should be available. */ 821 public static final int DATA_CONNECTED = 2; 822 /** Data connection state: Suspended. The connection is up, but IP 823 * traffic is temporarily unavailable. For example, in a 2G network, 824 * data activity may be suspended when a voice call arrives. */ 825 public static final int DATA_SUSPENDED = 3; 826 827 /** 828 * Returns a constant indicating the current data connection state 829 * (cellular). 830 * 831 * @see #DATA_DISCONNECTED 832 * @see #DATA_CONNECTING 833 * @see #DATA_CONNECTED 834 * @see #DATA_SUSPENDED 835 */ 836 public int getDataState() { 837 try { 838 return getITelephony().getDataState(); 839 } catch (RemoteException ex) { 840 // the phone process is restarting. 841 return DATA_DISCONNECTED; 842 } catch (NullPointerException ex) { 843 return DATA_DISCONNECTED; 844 } 845 } 846 847 private ITelephony getITelephony() { 848 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 849 } 850 851 // 852 // 853 // PhoneStateListener 854 // 855 // 856 857 /** 858 * Registers a listener object to receive notification of changes 859 * in specified telephony states. 860 * <p> 861 * To register a listener, pass a {@link PhoneStateListener} 862 * and specify at least one telephony state of interest in 863 * the events argument. 864 * 865 * At registration, and when a specified telephony state 866 * changes, the telephony manager invokes the appropriate 867 * callback method on the listener object and passes the 868 * current (udpated) values. 869 * <p> 870 * To unregister a listener, pass the listener object and set the 871 * events argument to 872 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 873 * 874 * @param listener The {@link PhoneStateListener} object to register 875 * (or unregister) 876 * @param events The telephony state(s) of interest to the listener, 877 * as a bitwise-OR combination of {@link PhoneStateListener} 878 * LISTEN_ flags. 879 */ 880 public void listen(PhoneStateListener listener, int events) { 881 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 882 try { 883 Boolean notifyNow = (getITelephony() != null); 884 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 885 } catch (RemoteException ex) { 886 // system process dead 887 } catch (NullPointerException ex) { 888 // system process dead 889 } 890 } 891 892 /** 893 * Returns the CDMA ERI icon index to display 894 * 895 * @hide 896 */ 897 public int getCdmaEriIconIndex() { 898 try { 899 return getITelephony().getCdmaEriIconIndex(); 900 } catch (RemoteException ex) { 901 // the phone process is restarting. 902 return -1; 903 } catch (NullPointerException ex) { 904 return -1; 905 } 906 } 907 908 /** 909 * Returns the CDMA ERI icon mode, 910 * 0 - ON 911 * 1 - FLASHING 912 * 913 * @hide 914 */ 915 public int getCdmaEriIconMode() { 916 try { 917 return getITelephony().getCdmaEriIconMode(); 918 } catch (RemoteException ex) { 919 // the phone process is restarting. 920 return -1; 921 } catch (NullPointerException ex) { 922 return -1; 923 } 924 } 925 926 /** 927 * Returns the CDMA ERI text, 928 * 929 * @hide 930 */ 931 public String getCdmaEriText() { 932 try { 933 return getITelephony().getCdmaEriText(); 934 } catch (RemoteException ex) { 935 // the phone process is restarting. 936 return null; 937 } catch (NullPointerException ex) { 938 return null; 939 } 940 } 941 942 /** 943 * @return true if the current device is "voice capable". 944 * <p> 945 * "Voice capable" means that this device supports circuit-switched 946 * (i.e. voice) phone calls over the telephony network, and is allowed 947 * to display the in-call UI while a cellular voice call is active. 948 * This will be false on "data only" devices which can't make voice 949 * calls and don't support any in-call UI. 950 * <p> 951 * Note: the meaning of this flag is subtly different from the 952 * PackageManager.FEATURE_TELEPHONY system feature, which is available 953 * on any device with a telephony radio, even if the device is 954 * data-only. 955 * 956 * @hide pending API review 957 */ 958 public boolean isVoiceCapable() { 959 return mContext.getResources().getBoolean( 960 com.android.internal.R.bool.config_voice_capable); 961 } 962 963 /** 964 * @return true if the current device supports sms service. 965 * <p> 966 * If true, this means that the device supports both sending and 967 * receiving sms via the telephony network. 968 * <p> 969 * Note: Voicemail waiting sms, cell broadcasting sms, and MMS are 970 * disabled when device doesn't support sms. 971 * 972 * @hide pending API review 973 */ 974 public boolean isSmsCapable() { 975 return mContext.getResources().getBoolean( 976 com.android.internal.R.bool.config_sms_capable); 977 } 978} 979