TelephonyManager.java revision 962a990a45a2a9f9c3002064e71f9c2fed86acf1
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 ITelephony telephony = getITelephony(); 290 if (telephony != null) { 291 return telephony.getActivePhoneType(); 292 } else { 293 // This can happen when the ITelephony interface is not up yet. 294 return getPhoneTypeFromProperty(); 295 } 296 } catch (RemoteException ex) { 297 // This shouldn't happen in the normal case, as a backup we 298 // read from the system property. 299 return getPhoneTypeFromProperty(); 300 } catch (NullPointerException ex) { 301 // This shouldn't happen in the normal case, as a backup we 302 // read from the system property. 303 return getPhoneTypeFromProperty(); 304 } 305 } 306 307 308 private int getPhoneTypeFromProperty() { 309 int type = 310 SystemProperties.getInt(TelephonyProperties.CURRENT_ACTIVE_PHONE, 311 getPhoneTypeFromNetworkType()); 312 return type; 313 } 314 315 private int getPhoneTypeFromNetworkType() { 316 // When the system property CURRENT_ACTIVE_PHONE, has not been set, 317 // use the system property for default network type. 318 // This is a fail safe, and can only happen at first boot. 319 int mode = SystemProperties.getInt("ro.telephony.default_network", -1); 320 if (mode == -1) 321 return PHONE_TYPE_NONE; 322 return PhoneFactory.getPhoneType(mode); 323 } 324 // 325 // 326 // Current Network 327 // 328 // 329 330 /** 331 * Returns the alphabetic name of current registered operator. 332 * <p> 333 * Availability: Only when user is registered to a network. Result may be 334 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 335 * on a CDMA network). 336 */ 337 public String getNetworkOperatorName() { 338 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA); 339 } 340 341 /** 342 * Returns the numeric name (MCC+MNC) of current registered operator. 343 * <p> 344 * Availability: Only when user is registered to a network. Result may be 345 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 346 * on a CDMA network). 347 */ 348 public String getNetworkOperator() { 349 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC); 350 } 351 352 /** 353 * Returns true if the device is considered roaming on the current 354 * network, for GSM purposes. 355 * <p> 356 * Availability: Only when user registered to a network. 357 */ 358 public boolean isNetworkRoaming() { 359 return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING)); 360 } 361 362 /** 363 * Returns the ISO country code equivalent of the current registered 364 * operator's MCC (Mobile Country Code). 365 * <p> 366 * Availability: Only when user is registered to a network. Result may be 367 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 368 * on a CDMA network). 369 */ 370 public String getNetworkCountryIso() { 371 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY); 372 } 373 374 /** Network type is unknown */ 375 public static final int NETWORK_TYPE_UNKNOWN = 0; 376 /** Current network is GPRS */ 377 public static final int NETWORK_TYPE_GPRS = 1; 378 /** Current network is EDGE */ 379 public static final int NETWORK_TYPE_EDGE = 2; 380 /** Current network is UMTS */ 381 public static final int NETWORK_TYPE_UMTS = 3; 382 /** Current network is CDMA: Either IS95A or IS95B*/ 383 public static final int NETWORK_TYPE_CDMA = 4; 384 /** Current network is EVDO revision 0*/ 385 public static final int NETWORK_TYPE_EVDO_0 = 5; 386 /** Current network is EVDO revision A*/ 387 public static final int NETWORK_TYPE_EVDO_A = 6; 388 /** Current network is 1xRTT*/ 389 public static final int NETWORK_TYPE_1xRTT = 7; 390 /** Current network is HSDPA */ 391 public static final int NETWORK_TYPE_HSDPA = 8; 392 /** Current network is HSUPA */ 393 public static final int NETWORK_TYPE_HSUPA = 9; 394 /** Current network is HSPA */ 395 public static final int NETWORK_TYPE_HSPA = 10; 396 /** Current network is iDen */ 397 public static final int NETWORK_TYPE_IDEN = 11; 398 /** Current network is EVDO revision B*/ 399 public static final int NETWORK_TYPE_EVDO_B = 12; 400 /** Current network is LTE */ 401 public static final int NETWORK_TYPE_LTE = 13; 402 /** Current network is eHRPD */ 403 public static final int NETWORK_TYPE_EHRPD = 14; 404 405 406 /** 407 * Returns a constant indicating the radio technology (network type) 408 * currently in use on the device for data transmission. 409 * @return the network type 410 * 411 * @see #NETWORK_TYPE_UNKNOWN 412 * @see #NETWORK_TYPE_GPRS 413 * @see #NETWORK_TYPE_EDGE 414 * @see #NETWORK_TYPE_UMTS 415 * @see #NETWORK_TYPE_HSDPA 416 * @see #NETWORK_TYPE_HSUPA 417 * @see #NETWORK_TYPE_HSPA 418 * @see #NETWORK_TYPE_CDMA 419 * @see #NETWORK_TYPE_EVDO_0 420 * @see #NETWORK_TYPE_EVDO_A 421 * @see #NETWORK_TYPE_EVDO_B 422 * @see #NETWORK_TYPE_1xRTT 423 * @see #NETWORK_TYPE_IDEN 424 * @see #NETWORK_TYPE_LTE 425 * @see #NETWORK_TYPE_EHRPD 426 */ 427 public int getNetworkType() { 428 try{ 429 ITelephony telephony = getITelephony(); 430 if (telephony != null) { 431 return telephony.getNetworkType(); 432 } else { 433 // This can happen when the ITelephony interface is not up yet. 434 return NETWORK_TYPE_UNKNOWN; 435 } 436 } catch(RemoteException ex) { 437 // This shouldn't happen in the normal case 438 return NETWORK_TYPE_UNKNOWN; 439 } catch (NullPointerException ex) { 440 // This could happen before phone restarts due to crashing 441 return NETWORK_TYPE_UNKNOWN; 442 } 443 } 444 445 /** 446 * Returns a string representation of the radio technology (network type) 447 * currently in use on the device. 448 * @return the name of the radio technology 449 * 450 * @hide pending API council review 451 */ 452 public String getNetworkTypeName() { 453 switch (getNetworkType()) { 454 case NETWORK_TYPE_GPRS: 455 return "GPRS"; 456 case NETWORK_TYPE_EDGE: 457 return "EDGE"; 458 case NETWORK_TYPE_UMTS: 459 return "UMTS"; 460 case NETWORK_TYPE_HSDPA: 461 return "HSDPA"; 462 case NETWORK_TYPE_HSUPA: 463 return "HSUPA"; 464 case NETWORK_TYPE_HSPA: 465 return "HSPA"; 466 case NETWORK_TYPE_CDMA: 467 return "CDMA"; 468 case NETWORK_TYPE_EVDO_0: 469 return "CDMA - EvDo rev. 0"; 470 case NETWORK_TYPE_EVDO_A: 471 return "CDMA - EvDo rev. A"; 472 case NETWORK_TYPE_EVDO_B: 473 return "CDMA - EvDo rev. B"; 474 case NETWORK_TYPE_1xRTT: 475 return "CDMA - 1xRTT"; 476 case NETWORK_TYPE_LTE: 477 return "LTE"; 478 case NETWORK_TYPE_EHRPD: 479 return "CDMA - eHRPD"; 480 default: 481 return "UNKNOWN"; 482 } 483 } 484 485 // 486 // 487 // SIM Card 488 // 489 // 490 491 /** SIM card state: Unknown. Signifies that the SIM is in transition 492 * between states. For example, when the user inputs the SIM pin 493 * under PIN_REQUIRED state, a query for sim status returns 494 * this state before turning to SIM_STATE_READY. */ 495 public static final int SIM_STATE_UNKNOWN = 0; 496 /** SIM card state: no SIM card is available in the device */ 497 public static final int SIM_STATE_ABSENT = 1; 498 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 499 public static final int SIM_STATE_PIN_REQUIRED = 2; 500 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 501 public static final int SIM_STATE_PUK_REQUIRED = 3; 502 /** SIM card state: Locked: requries a network PIN to unlock */ 503 public static final int SIM_STATE_NETWORK_LOCKED = 4; 504 /** SIM card state: Ready */ 505 public static final int SIM_STATE_READY = 5; 506 507 /** 508 * @return true if a ICC card is present 509 */ 510 public boolean hasIccCard() { 511 try { 512 return getITelephony().hasIccCard(); 513 } catch (RemoteException ex) { 514 // Assume no ICC card if remote exception which shouldn't happen 515 return false; 516 } catch (NullPointerException ex) { 517 // This could happen before phone restarts due to crashing 518 return false; 519 } 520 } 521 522 /** 523 * Returns a constant indicating the state of the 524 * device SIM card. 525 * 526 * @see #SIM_STATE_UNKNOWN 527 * @see #SIM_STATE_ABSENT 528 * @see #SIM_STATE_PIN_REQUIRED 529 * @see #SIM_STATE_PUK_REQUIRED 530 * @see #SIM_STATE_NETWORK_LOCKED 531 * @see #SIM_STATE_READY 532 */ 533 public int getSimState() { 534 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 535 if ("ABSENT".equals(prop)) { 536 return SIM_STATE_ABSENT; 537 } 538 else if ("PIN_REQUIRED".equals(prop)) { 539 return SIM_STATE_PIN_REQUIRED; 540 } 541 else if ("PUK_REQUIRED".equals(prop)) { 542 return SIM_STATE_PUK_REQUIRED; 543 } 544 else if ("NETWORK_LOCKED".equals(prop)) { 545 return SIM_STATE_NETWORK_LOCKED; 546 } 547 else if ("READY".equals(prop)) { 548 return SIM_STATE_READY; 549 } 550 else { 551 return SIM_STATE_UNKNOWN; 552 } 553 } 554 555 /** 556 * Returns the MCC+MNC (mobile country code + mobile network code) of the 557 * provider of the SIM. 5 or 6 decimal digits. 558 * <p> 559 * Availability: SIM state must be {@link #SIM_STATE_READY} 560 * 561 * @see #getSimState 562 */ 563 public String getSimOperator() { 564 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 565 } 566 567 /** 568 * Returns the Service Provider Name (SPN). 569 * <p> 570 * Availability: SIM state must be {@link #SIM_STATE_READY} 571 * 572 * @see #getSimState 573 */ 574 public String getSimOperatorName() { 575 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 576 } 577 578 /** 579 * Returns the ISO country code equivalent for the SIM provider's country code. 580 */ 581 public String getSimCountryIso() { 582 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 583 } 584 585 /** 586 * Returns the serial number of the SIM, if applicable. Return null if it is 587 * unavailable. 588 * <p> 589 * Requires Permission: 590 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 591 */ 592 public String getSimSerialNumber() { 593 try { 594 return getSubscriberInfo().getIccSerialNumber(); 595 } catch (RemoteException ex) { 596 return null; 597 } catch (NullPointerException ex) { 598 // This could happen before phone restarts due to crashing 599 return null; 600 } 601 } 602 603 // 604 // 605 // Subscriber Info 606 // 607 // 608 609 /** 610 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 611 * Return null if it is unavailable. 612 * <p> 613 * Requires Permission: 614 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 615 */ 616 public String getSubscriberId() { 617 try { 618 return getSubscriberInfo().getSubscriberId(); 619 } catch (RemoteException ex) { 620 return null; 621 } catch (NullPointerException ex) { 622 // This could happen before phone restarts due to crashing 623 return null; 624 } 625 } 626 627 /** 628 * Returns the phone number string for line 1, for example, the MSISDN 629 * for a GSM phone. Return null if it is unavailable. 630 * <p> 631 * Requires Permission: 632 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 633 */ 634 public String getLine1Number() { 635 try { 636 return getSubscriberInfo().getLine1Number(); 637 } catch (RemoteException ex) { 638 return null; 639 } catch (NullPointerException ex) { 640 // This could happen before phone restarts due to crashing 641 return null; 642 } 643 } 644 645 /** 646 * Returns the alphabetic identifier associated with the line 1 number. 647 * Return null if it is unavailable. 648 * <p> 649 * Requires Permission: 650 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 651 * @hide 652 * nobody seems to call this. 653 */ 654 public String getLine1AlphaTag() { 655 try { 656 return getSubscriberInfo().getLine1AlphaTag(); 657 } catch (RemoteException ex) { 658 return null; 659 } catch (NullPointerException ex) { 660 // This could happen before phone restarts due to crashing 661 return null; 662 } 663 } 664 665 /** 666 * Returns the voice mail number. Return null if it is unavailable. 667 * <p> 668 * Requires Permission: 669 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 670 */ 671 public String getVoiceMailNumber() { 672 try { 673 return getSubscriberInfo().getVoiceMailNumber(); 674 } catch (RemoteException ex) { 675 return null; 676 } catch (NullPointerException ex) { 677 // This could happen before phone restarts due to crashing 678 return null; 679 } 680 } 681 682 /** 683 * Returns the complete voice mail number. Return null if it is unavailable. 684 * <p> 685 * Requires Permission: 686 * {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED} 687 * 688 * @hide 689 */ 690 public String getCompleteVoiceMailNumber() { 691 try { 692 return getSubscriberInfo().getCompleteVoiceMailNumber(); 693 } catch (RemoteException ex) { 694 return null; 695 } catch (NullPointerException ex) { 696 // This could happen before phone restarts due to crashing 697 return null; 698 } 699 } 700 701 /** 702 * Returns the voice mail count. Return 0 if unavailable. 703 * <p> 704 * Requires Permission: 705 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 706 * @hide 707 */ 708 public int getVoiceMessageCount() { 709 try { 710 return getITelephony().getVoiceMessageCount(); 711 } catch (RemoteException ex) { 712 return 0; 713 } catch (NullPointerException ex) { 714 // This could happen before phone restarts due to crashing 715 return 0; 716 } 717 } 718 719 /** 720 * Retrieves the alphabetic identifier associated with the voice 721 * mail number. 722 * <p> 723 * Requires Permission: 724 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 725 */ 726 public String getVoiceMailAlphaTag() { 727 try { 728 return getSubscriberInfo().getVoiceMailAlphaTag(); 729 } catch (RemoteException ex) { 730 return null; 731 } catch (NullPointerException ex) { 732 // This could happen before phone restarts due to crashing 733 return null; 734 } 735 } 736 737 private IPhoneSubInfo getSubscriberInfo() { 738 // get it each time because that process crashes a lot 739 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 740 } 741 742 743 /** Device call state: No activity. */ 744 public static final int CALL_STATE_IDLE = 0; 745 /** Device call state: Ringing. A new call arrived and is 746 * ringing or waiting. In the latter case, another call is 747 * already active. */ 748 public static final int CALL_STATE_RINGING = 1; 749 /** Device call state: Off-hook. At least one call exists 750 * that is dialing, active, or on hold, and no calls are ringing 751 * or waiting. */ 752 public static final int CALL_STATE_OFFHOOK = 2; 753 754 /** 755 * Returns a constant indicating the call state (cellular) on the device. 756 */ 757 public int getCallState() { 758 try { 759 return getITelephony().getCallState(); 760 } catch (RemoteException ex) { 761 // the phone process is restarting. 762 return CALL_STATE_IDLE; 763 } catch (NullPointerException ex) { 764 // the phone process is restarting. 765 return CALL_STATE_IDLE; 766 } 767 } 768 769 /** Data connection activity: No traffic. */ 770 public static final int DATA_ACTIVITY_NONE = 0x00000000; 771 /** Data connection activity: Currently receiving IP PPP traffic. */ 772 public static final int DATA_ACTIVITY_IN = 0x00000001; 773 /** Data connection activity: Currently sending IP PPP traffic. */ 774 public static final int DATA_ACTIVITY_OUT = 0x00000002; 775 /** Data connection activity: Currently both sending and receiving 776 * IP PPP traffic. */ 777 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 778 /** 779 * Data connection is active, but physical link is down 780 */ 781 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 782 783 /** 784 * Returns a constant indicating the type of activity on a data connection 785 * (cellular). 786 * 787 * @see #DATA_ACTIVITY_NONE 788 * @see #DATA_ACTIVITY_IN 789 * @see #DATA_ACTIVITY_OUT 790 * @see #DATA_ACTIVITY_INOUT 791 * @see #DATA_ACTIVITY_DORMANT 792 */ 793 public int getDataActivity() { 794 try { 795 return getITelephony().getDataActivity(); 796 } catch (RemoteException ex) { 797 // the phone process is restarting. 798 return DATA_ACTIVITY_NONE; 799 } catch (NullPointerException ex) { 800 // the phone process is restarting. 801 return DATA_ACTIVITY_NONE; 802 } 803 } 804 805 /** Data connection state: Disconnected. IP traffic not available. */ 806 public static final int DATA_DISCONNECTED = 0; 807 /** Data connection state: Currently setting up a data connection. */ 808 public static final int DATA_CONNECTING = 1; 809 /** Data connection state: Connected. IP traffic should be available. */ 810 public static final int DATA_CONNECTED = 2; 811 /** Data connection state: Suspended. The connection is up, but IP 812 * traffic is temporarily unavailable. For example, in a 2G network, 813 * data activity may be suspended when a voice call arrives. */ 814 public static final int DATA_SUSPENDED = 3; 815 816 /** 817 * Returns a constant indicating the current data connection state 818 * (cellular). 819 * 820 * @see #DATA_DISCONNECTED 821 * @see #DATA_CONNECTING 822 * @see #DATA_CONNECTED 823 * @see #DATA_SUSPENDED 824 */ 825 public int getDataState() { 826 try { 827 return getITelephony().getDataState(); 828 } catch (RemoteException ex) { 829 // the phone process is restarting. 830 return DATA_DISCONNECTED; 831 } catch (NullPointerException ex) { 832 return DATA_DISCONNECTED; 833 } 834 } 835 836 private ITelephony getITelephony() { 837 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 838 } 839 840 // 841 // 842 // PhoneStateListener 843 // 844 // 845 846 /** 847 * Registers a listener object to receive notification of changes 848 * in specified telephony states. 849 * <p> 850 * To register a listener, pass a {@link PhoneStateListener} 851 * and specify at least one telephony state of interest in 852 * the events argument. 853 * 854 * At registration, and when a specified telephony state 855 * changes, the telephony manager invokes the appropriate 856 * callback method on the listener object and passes the 857 * current (udpated) values. 858 * <p> 859 * To unregister a listener, pass the listener object and set the 860 * events argument to 861 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 862 * 863 * @param listener The {@link PhoneStateListener} object to register 864 * (or unregister) 865 * @param events The telephony state(s) of interest to the listener, 866 * as a bitwise-OR combination of {@link PhoneStateListener} 867 * LISTEN_ flags. 868 */ 869 public void listen(PhoneStateListener listener, int events) { 870 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 871 try { 872 Boolean notifyNow = (getITelephony() != null); 873 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 874 } catch (RemoteException ex) { 875 // system process dead 876 } catch (NullPointerException ex) { 877 // system process dead 878 } 879 } 880 881 /** 882 * Returns the CDMA ERI icon index to display 883 * 884 * @hide 885 */ 886 public int getCdmaEriIconIndex() { 887 try { 888 return getITelephony().getCdmaEriIconIndex(); 889 } catch (RemoteException ex) { 890 // the phone process is restarting. 891 return -1; 892 } catch (NullPointerException ex) { 893 return -1; 894 } 895 } 896 897 /** 898 * Returns the CDMA ERI icon mode, 899 * 0 - ON 900 * 1 - FLASHING 901 * 902 * @hide 903 */ 904 public int getCdmaEriIconMode() { 905 try { 906 return getITelephony().getCdmaEriIconMode(); 907 } catch (RemoteException ex) { 908 // the phone process is restarting. 909 return -1; 910 } catch (NullPointerException ex) { 911 return -1; 912 } 913 } 914 915 /** 916 * Returns the CDMA ERI text, 917 * 918 * @hide 919 */ 920 public String getCdmaEriText() { 921 try { 922 return getITelephony().getCdmaEriText(); 923 } catch (RemoteException ex) { 924 // the phone process is restarting. 925 return null; 926 } catch (NullPointerException ex) { 927 return null; 928 } 929 } 930 931 /** 932 * @return true if the current device is "voice capable". 933 * <p> 934 * "Voice capable" means that this device supports circuit-switched 935 * (i.e. voice) phone calls over the telephony network, and is allowed 936 * to display the in-call UI while a cellular voice call is active. 937 * This will be false on "data only" devices which can't make voice 938 * calls and don't support any in-call UI. 939 * <p> 940 * Note: the meaning of this flag is subtly different from the 941 * PackageManager.FEATURE_TELEPHONY system feature, which is available 942 * on any device with a telephony radio, even if the device is 943 * data-only. 944 * 945 * @hide pending API review 946 */ 947 public boolean isVoiceCapable() { 948 return mContext.getResources().getBoolean( 949 com.android.internal.R.bool.config_voice_capable); 950 } 951} 952