TelephonyManager.java revision 7ea919c44b05daf99c045d09eb3edafb96019da7
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 * Returns a constant indicating the radio technology (network type) 407 * currently in use on the device for data transmission. 408 * @return the network type 409 * 410 * @see #NETWORK_TYPE_UNKNOWN 411 * @see #NETWORK_TYPE_GPRS 412 * @see #NETWORK_TYPE_EDGE 413 * @see #NETWORK_TYPE_UMTS 414 * @see #NETWORK_TYPE_HSDPA 415 * @see #NETWORK_TYPE_HSUPA 416 * @see #NETWORK_TYPE_HSPA 417 * @see #NETWORK_TYPE_CDMA 418 * @see #NETWORK_TYPE_EVDO_0 419 * @see #NETWORK_TYPE_EVDO_A 420 * @see #NETWORK_TYPE_EVDO_B 421 * @see #NETWORK_TYPE_1xRTT 422 * @see #NETWORK_TYPE_IDEN 423 * @see #NETWORK_TYPE_LTE 424 * @see #NETWORK_TYPE_EHRPD 425 */ 426 public int getNetworkType() { 427 try{ 428 ITelephony telephony = getITelephony(); 429 if (telephony != null) { 430 return telephony.getNetworkType(); 431 } else { 432 // This can happen when the ITelephony interface is not up yet. 433 return NETWORK_TYPE_UNKNOWN; 434 } 435 } catch(RemoteException ex) { 436 // This shouldn't happen in the normal case 437 return NETWORK_TYPE_UNKNOWN; 438 } catch (NullPointerException ex) { 439 // This could happen before phone restarts due to crashing 440 return NETWORK_TYPE_UNKNOWN; 441 } 442 } 443 444 /** 445 * Returns a string representation of the radio technology (network type) 446 * currently in use on the device. 447 * @return the name of the radio technology 448 * 449 * @hide pending API council review 450 */ 451 public String getNetworkTypeName() { 452 switch (getNetworkType()) { 453 case NETWORK_TYPE_GPRS: 454 return "GPRS"; 455 case NETWORK_TYPE_EDGE: 456 return "EDGE"; 457 case NETWORK_TYPE_UMTS: 458 return "UMTS"; 459 case NETWORK_TYPE_HSDPA: 460 return "HSDPA"; 461 case NETWORK_TYPE_HSUPA: 462 return "HSUPA"; 463 case NETWORK_TYPE_HSPA: 464 return "HSPA"; 465 case NETWORK_TYPE_CDMA: 466 return "CDMA"; 467 case NETWORK_TYPE_EVDO_0: 468 return "CDMA - EvDo rev. 0"; 469 case NETWORK_TYPE_EVDO_A: 470 return "CDMA - EvDo rev. A"; 471 case NETWORK_TYPE_EVDO_B: 472 return "CDMA - EvDo rev. B"; 473 case NETWORK_TYPE_1xRTT: 474 return "CDMA - 1xRTT"; 475 case NETWORK_TYPE_LTE: 476 return "LTE"; 477 case NETWORK_TYPE_EHRPD: 478 return "CDMA - eHRPD"; 479 case NETWORK_TYPE_IDEN: 480 return "iDEN"; 481 default: 482 return "UNKNOWN"; 483 } 484 } 485 486 // 487 // 488 // SIM Card 489 // 490 // 491 492 /** SIM card state: Unknown. Signifies that the SIM is in transition 493 * between states. For example, when the user inputs the SIM pin 494 * under PIN_REQUIRED state, a query for sim status returns 495 * this state before turning to SIM_STATE_READY. */ 496 public static final int SIM_STATE_UNKNOWN = 0; 497 /** SIM card state: no SIM card is available in the device */ 498 public static final int SIM_STATE_ABSENT = 1; 499 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 500 public static final int SIM_STATE_PIN_REQUIRED = 2; 501 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 502 public static final int SIM_STATE_PUK_REQUIRED = 3; 503 /** SIM card state: Locked: requries a network PIN to unlock */ 504 public static final int SIM_STATE_NETWORK_LOCKED = 4; 505 /** SIM card state: Ready */ 506 public static final int SIM_STATE_READY = 5; 507 508 /** 509 * @return true if a ICC card is present 510 */ 511 public boolean hasIccCard() { 512 try { 513 return getITelephony().hasIccCard(); 514 } catch (RemoteException ex) { 515 // Assume no ICC card if remote exception which shouldn't happen 516 return false; 517 } catch (NullPointerException ex) { 518 // This could happen before phone restarts due to crashing 519 return false; 520 } 521 } 522 523 /** 524 * Returns a constant indicating the state of the 525 * device SIM card. 526 * 527 * @see #SIM_STATE_UNKNOWN 528 * @see #SIM_STATE_ABSENT 529 * @see #SIM_STATE_PIN_REQUIRED 530 * @see #SIM_STATE_PUK_REQUIRED 531 * @see #SIM_STATE_NETWORK_LOCKED 532 * @see #SIM_STATE_READY 533 */ 534 public int getSimState() { 535 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 536 if ("ABSENT".equals(prop)) { 537 return SIM_STATE_ABSENT; 538 } 539 else if ("PIN_REQUIRED".equals(prop)) { 540 return SIM_STATE_PIN_REQUIRED; 541 } 542 else if ("PUK_REQUIRED".equals(prop)) { 543 return SIM_STATE_PUK_REQUIRED; 544 } 545 else if ("NETWORK_LOCKED".equals(prop)) { 546 return SIM_STATE_NETWORK_LOCKED; 547 } 548 else if ("READY".equals(prop)) { 549 return SIM_STATE_READY; 550 } 551 else { 552 return SIM_STATE_UNKNOWN; 553 } 554 } 555 556 /** 557 * Returns the MCC+MNC (mobile country code + mobile network code) of the 558 * provider of the SIM. 5 or 6 decimal digits. 559 * <p> 560 * Availability: SIM state must be {@link #SIM_STATE_READY} 561 * 562 * @see #getSimState 563 */ 564 public String getSimOperator() { 565 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 566 } 567 568 /** 569 * Returns the Service Provider Name (SPN). 570 * <p> 571 * Availability: SIM state must be {@link #SIM_STATE_READY} 572 * 573 * @see #getSimState 574 */ 575 public String getSimOperatorName() { 576 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 577 } 578 579 /** 580 * Returns the ISO country code equivalent for the SIM provider's country code. 581 */ 582 public String getSimCountryIso() { 583 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 584 } 585 586 /** 587 * Returns the serial number of the SIM, if applicable. Return null if it is 588 * unavailable. 589 * <p> 590 * Requires Permission: 591 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 592 */ 593 public String getSimSerialNumber() { 594 try { 595 return getSubscriberInfo().getIccSerialNumber(); 596 } catch (RemoteException ex) { 597 return null; 598 } catch (NullPointerException ex) { 599 // This could happen before phone restarts due to crashing 600 return null; 601 } 602 } 603 604 // 605 // 606 // Subscriber Info 607 // 608 // 609 610 /** 611 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 612 * Return null if it is unavailable. 613 * <p> 614 * Requires Permission: 615 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 616 */ 617 public String getSubscriberId() { 618 try { 619 return getSubscriberInfo().getSubscriberId(); 620 } catch (RemoteException ex) { 621 return null; 622 } catch (NullPointerException ex) { 623 // This could happen before phone restarts due to crashing 624 return null; 625 } 626 } 627 628 /** 629 * Returns the phone number string for line 1, for example, the MSISDN 630 * for a GSM phone. Return null if it is unavailable. 631 * <p> 632 * Requires Permission: 633 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 634 */ 635 public String getLine1Number() { 636 try { 637 return getSubscriberInfo().getLine1Number(); 638 } catch (RemoteException ex) { 639 return null; 640 } catch (NullPointerException ex) { 641 // This could happen before phone restarts due to crashing 642 return null; 643 } 644 } 645 646 /** 647 * Returns the alphabetic identifier associated with the line 1 number. 648 * Return null if it is unavailable. 649 * <p> 650 * Requires Permission: 651 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 652 * @hide 653 * nobody seems to call this. 654 */ 655 public String getLine1AlphaTag() { 656 try { 657 return getSubscriberInfo().getLine1AlphaTag(); 658 } catch (RemoteException ex) { 659 return null; 660 } catch (NullPointerException ex) { 661 // This could happen before phone restarts due to crashing 662 return null; 663 } 664 } 665 666 /** 667 * Returns the voice mail number. Return null if it is unavailable. 668 * <p> 669 * Requires Permission: 670 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 671 */ 672 public String getVoiceMailNumber() { 673 try { 674 return getSubscriberInfo().getVoiceMailNumber(); 675 } catch (RemoteException ex) { 676 return null; 677 } catch (NullPointerException ex) { 678 // This could happen before phone restarts due to crashing 679 return null; 680 } 681 } 682 683 /** 684 * Returns the complete voice mail number. Return null if it is unavailable. 685 * <p> 686 * Requires Permission: 687 * {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED} 688 * 689 * @hide 690 */ 691 public String getCompleteVoiceMailNumber() { 692 try { 693 return getSubscriberInfo().getCompleteVoiceMailNumber(); 694 } catch (RemoteException ex) { 695 return null; 696 } catch (NullPointerException ex) { 697 // This could happen before phone restarts due to crashing 698 return null; 699 } 700 } 701 702 /** 703 * Returns the voice mail count. Return 0 if unavailable. 704 * <p> 705 * Requires Permission: 706 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 707 * @hide 708 */ 709 public int getVoiceMessageCount() { 710 try { 711 return getITelephony().getVoiceMessageCount(); 712 } catch (RemoteException ex) { 713 return 0; 714 } catch (NullPointerException ex) { 715 // This could happen before phone restarts due to crashing 716 return 0; 717 } 718 } 719 720 /** 721 * Retrieves the alphabetic identifier associated with the voice 722 * mail number. 723 * <p> 724 * Requires Permission: 725 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 726 */ 727 public String getVoiceMailAlphaTag() { 728 try { 729 return getSubscriberInfo().getVoiceMailAlphaTag(); 730 } catch (RemoteException ex) { 731 return null; 732 } catch (NullPointerException ex) { 733 // This could happen before phone restarts due to crashing 734 return null; 735 } 736 } 737 738 private IPhoneSubInfo getSubscriberInfo() { 739 // get it each time because that process crashes a lot 740 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 741 } 742 743 744 /** Device call state: No activity. */ 745 public static final int CALL_STATE_IDLE = 0; 746 /** Device call state: Ringing. A new call arrived and is 747 * ringing or waiting. In the latter case, another call is 748 * already active. */ 749 public static final int CALL_STATE_RINGING = 1; 750 /** Device call state: Off-hook. At least one call exists 751 * that is dialing, active, or on hold, and no calls are ringing 752 * or waiting. */ 753 public static final int CALL_STATE_OFFHOOK = 2; 754 755 /** 756 * Returns a constant indicating the call state (cellular) on the device. 757 */ 758 public int getCallState() { 759 try { 760 return getITelephony().getCallState(); 761 } catch (RemoteException ex) { 762 // the phone process is restarting. 763 return CALL_STATE_IDLE; 764 } catch (NullPointerException ex) { 765 // the phone process is restarting. 766 return CALL_STATE_IDLE; 767 } 768 } 769 770 /** Data connection activity: No traffic. */ 771 public static final int DATA_ACTIVITY_NONE = 0x00000000; 772 /** Data connection activity: Currently receiving IP PPP traffic. */ 773 public static final int DATA_ACTIVITY_IN = 0x00000001; 774 /** Data connection activity: Currently sending IP PPP traffic. */ 775 public static final int DATA_ACTIVITY_OUT = 0x00000002; 776 /** Data connection activity: Currently both sending and receiving 777 * IP PPP traffic. */ 778 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 779 /** 780 * Data connection is active, but physical link is down 781 */ 782 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 783 784 /** 785 * Returns a constant indicating the type of activity on a data connection 786 * (cellular). 787 * 788 * @see #DATA_ACTIVITY_NONE 789 * @see #DATA_ACTIVITY_IN 790 * @see #DATA_ACTIVITY_OUT 791 * @see #DATA_ACTIVITY_INOUT 792 * @see #DATA_ACTIVITY_DORMANT 793 */ 794 public int getDataActivity() { 795 try { 796 return getITelephony().getDataActivity(); 797 } catch (RemoteException ex) { 798 // the phone process is restarting. 799 return DATA_ACTIVITY_NONE; 800 } catch (NullPointerException ex) { 801 // the phone process is restarting. 802 return DATA_ACTIVITY_NONE; 803 } 804 } 805 806 /** Data connection state: Unknown. Used before we know the state. 807 * @hide 808 */ 809 public static final int DATA_UNKNOWN = -1; 810 /** Data connection state: Disconnected. IP traffic not available. */ 811 public static final int DATA_DISCONNECTED = 0; 812 /** Data connection state: Currently setting up a data connection. */ 813 public static final int DATA_CONNECTING = 1; 814 /** Data connection state: Connected. IP traffic should be available. */ 815 public static final int DATA_CONNECTED = 2; 816 /** Data connection state: Suspended. The connection is up, but IP 817 * traffic is temporarily unavailable. For example, in a 2G network, 818 * data activity may be suspended when a voice call arrives. */ 819 public static final int DATA_SUSPENDED = 3; 820 821 /** 822 * Returns a constant indicating the current data connection state 823 * (cellular). 824 * 825 * @see #DATA_DISCONNECTED 826 * @see #DATA_CONNECTING 827 * @see #DATA_CONNECTED 828 * @see #DATA_SUSPENDED 829 */ 830 public int getDataState() { 831 try { 832 return getITelephony().getDataState(); 833 } catch (RemoteException ex) { 834 // the phone process is restarting. 835 return DATA_DISCONNECTED; 836 } catch (NullPointerException ex) { 837 return DATA_DISCONNECTED; 838 } 839 } 840 841 private ITelephony getITelephony() { 842 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 843 } 844 845 // 846 // 847 // PhoneStateListener 848 // 849 // 850 851 /** 852 * Registers a listener object to receive notification of changes 853 * in specified telephony states. 854 * <p> 855 * To register a listener, pass a {@link PhoneStateListener} 856 * and specify at least one telephony state of interest in 857 * the events argument. 858 * 859 * At registration, and when a specified telephony state 860 * changes, the telephony manager invokes the appropriate 861 * callback method on the listener object and passes the 862 * current (udpated) values. 863 * <p> 864 * To unregister a listener, pass the listener object and set the 865 * events argument to 866 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 867 * 868 * @param listener The {@link PhoneStateListener} object to register 869 * (or unregister) 870 * @param events The telephony state(s) of interest to the listener, 871 * as a bitwise-OR combination of {@link PhoneStateListener} 872 * LISTEN_ flags. 873 */ 874 public void listen(PhoneStateListener listener, int events) { 875 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 876 try { 877 Boolean notifyNow = (getITelephony() != null); 878 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 879 } catch (RemoteException ex) { 880 // system process dead 881 } catch (NullPointerException ex) { 882 // system process dead 883 } 884 } 885 886 /** 887 * Returns the CDMA ERI icon index to display 888 * 889 * @hide 890 */ 891 public int getCdmaEriIconIndex() { 892 try { 893 return getITelephony().getCdmaEriIconIndex(); 894 } catch (RemoteException ex) { 895 // the phone process is restarting. 896 return -1; 897 } catch (NullPointerException ex) { 898 return -1; 899 } 900 } 901 902 /** 903 * Returns the CDMA ERI icon mode, 904 * 0 - ON 905 * 1 - FLASHING 906 * 907 * @hide 908 */ 909 public int getCdmaEriIconMode() { 910 try { 911 return getITelephony().getCdmaEriIconMode(); 912 } catch (RemoteException ex) { 913 // the phone process is restarting. 914 return -1; 915 } catch (NullPointerException ex) { 916 return -1; 917 } 918 } 919 920 /** 921 * Returns the CDMA ERI text, 922 * 923 * @hide 924 */ 925 public String getCdmaEriText() { 926 try { 927 return getITelephony().getCdmaEriText(); 928 } catch (RemoteException ex) { 929 // the phone process is restarting. 930 return null; 931 } catch (NullPointerException ex) { 932 return null; 933 } 934 } 935 936 /** 937 * @return true if the current device is "voice capable". 938 * <p> 939 * "Voice capable" means that this device supports circuit-switched 940 * (i.e. voice) phone calls over the telephony network, and is allowed 941 * to display the in-call UI while a cellular voice call is active. 942 * This will be false on "data only" devices which can't make voice 943 * calls and don't support any in-call UI. 944 * <p> 945 * Note: the meaning of this flag is subtly different from the 946 * PackageManager.FEATURE_TELEPHONY system feature, which is available 947 * on any device with a telephony radio, even if the device is 948 * data-only. 949 * 950 * @hide pending API review 951 */ 952 public boolean isVoiceCapable() { 953 return mContext.getResources().getBoolean( 954 com.android.internal.R.bool.config_voice_capable); 955 } 956 957 /** 958 * @return true if the current device supports sms service. 959 * <p> 960 * If true, this means that the device supports both sending and 961 * receiving sms via the telephony network. 962 * <p> 963 * Note: Voicemail waiting sms, cell broadcasting sms, and MMS are 964 * disabled when device doesn't support sms. 965 * 966 * @hide pending API review 967 */ 968 public boolean isSmsCapable() { 969 return mContext.getResources().getBoolean( 970 com.android.internal.R.bool.config_sms_capable); 971 } 972} 973