TelephonyManager.java revision 9b9e6778dd9a0f04eb22e4fdd83d7d0d56b6b1a9
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; 407 408 /** 409 * Returns a constant indicating the radio technology (network type) 410 * currently in use on the device for data transmission. 411 * @return the network type 412 * 413 * @see #NETWORK_TYPE_UNKNOWN 414 * @see #NETWORK_TYPE_GPRS 415 * @see #NETWORK_TYPE_EDGE 416 * @see #NETWORK_TYPE_UMTS 417 * @see #NETWORK_TYPE_HSDPA 418 * @see #NETWORK_TYPE_HSUPA 419 * @see #NETWORK_TYPE_HSPA 420 * @see #NETWORK_TYPE_CDMA 421 * @see #NETWORK_TYPE_EVDO_0 422 * @see #NETWORK_TYPE_EVDO_A 423 * @see #NETWORK_TYPE_EVDO_B 424 * @see #NETWORK_TYPE_1xRTT 425 * @see #NETWORK_TYPE_IDEN 426 * @see #NETWORK_TYPE_LTE 427 * @see #NETWORK_TYPE_EHRPD 428 */ 429 public int getNetworkType() { 430 try{ 431 ITelephony telephony = getITelephony(); 432 if (telephony != null) { 433 return telephony.getNetworkType(); 434 } else { 435 // This can happen when the ITelephony interface is not up yet. 436 return NETWORK_TYPE_UNKNOWN; 437 } 438 } catch(RemoteException ex) { 439 // This shouldn't happen in the normal case 440 return NETWORK_TYPE_UNKNOWN; 441 } catch (NullPointerException ex) { 442 // This could happen before phone restarts due to crashing 443 return NETWORK_TYPE_UNKNOWN; 444 } 445 } 446 447 /** 448 * Returns a string representation of the radio technology (network type) 449 * currently in use on the device. 450 * @return the name of the radio technology 451 * 452 * @hide pending API council review 453 */ 454 public String getNetworkTypeName() { 455 switch (getNetworkType()) { 456 case NETWORK_TYPE_GPRS: 457 return "GPRS"; 458 case NETWORK_TYPE_EDGE: 459 return "EDGE"; 460 case NETWORK_TYPE_UMTS: 461 return "UMTS"; 462 case NETWORK_TYPE_HSDPA: 463 return "HSDPA"; 464 case NETWORK_TYPE_HSUPA: 465 return "HSUPA"; 466 case NETWORK_TYPE_HSPA: 467 return "HSPA"; 468 case NETWORK_TYPE_CDMA: 469 return "CDMA"; 470 case NETWORK_TYPE_EVDO_0: 471 return "CDMA - EvDo rev. 0"; 472 case NETWORK_TYPE_EVDO_A: 473 return "CDMA - EvDo rev. A"; 474 case NETWORK_TYPE_EVDO_B: 475 return "CDMA - EvDo rev. B"; 476 case NETWORK_TYPE_1xRTT: 477 return "CDMA - 1xRTT"; 478 case NETWORK_TYPE_LTE: 479 return "LTE"; 480 case NETWORK_TYPE_EHRPD: 481 return "CDMA - eHRPD"; 482 case NETWORK_TYPE_IDEN: 483 return "iDEN"; 484 default: 485 return "UNKNOWN"; 486 } 487 } 488 489 // 490 // 491 // SIM Card 492 // 493 // 494 495 /** SIM card state: Unknown. Signifies that the SIM is in transition 496 * between states. For example, when the user inputs the SIM pin 497 * under PIN_REQUIRED state, a query for sim status returns 498 * this state before turning to SIM_STATE_READY. */ 499 public static final int SIM_STATE_UNKNOWN = 0; 500 /** SIM card state: no SIM card is available in the device */ 501 public static final int SIM_STATE_ABSENT = 1; 502 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 503 public static final int SIM_STATE_PIN_REQUIRED = 2; 504 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 505 public static final int SIM_STATE_PUK_REQUIRED = 3; 506 /** SIM card state: Locked: requries a network PIN to unlock */ 507 public static final int SIM_STATE_NETWORK_LOCKED = 4; 508 /** SIM card state: Ready */ 509 public static final int SIM_STATE_READY = 5; 510 511 /** 512 * @return true if a ICC card is present 513 */ 514 public boolean hasIccCard() { 515 try { 516 return getITelephony().hasIccCard(); 517 } catch (RemoteException ex) { 518 // Assume no ICC card if remote exception which shouldn't happen 519 return false; 520 } catch (NullPointerException ex) { 521 // This could happen before phone restarts due to crashing 522 return false; 523 } 524 } 525 526 /** 527 * Returns a constant indicating the state of the 528 * device SIM card. 529 * 530 * @see #SIM_STATE_UNKNOWN 531 * @see #SIM_STATE_ABSENT 532 * @see #SIM_STATE_PIN_REQUIRED 533 * @see #SIM_STATE_PUK_REQUIRED 534 * @see #SIM_STATE_NETWORK_LOCKED 535 * @see #SIM_STATE_READY 536 */ 537 public int getSimState() { 538 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 539 if ("ABSENT".equals(prop)) { 540 return SIM_STATE_ABSENT; 541 } 542 else if ("PIN_REQUIRED".equals(prop)) { 543 return SIM_STATE_PIN_REQUIRED; 544 } 545 else if ("PUK_REQUIRED".equals(prop)) { 546 return SIM_STATE_PUK_REQUIRED; 547 } 548 else if ("NETWORK_LOCKED".equals(prop)) { 549 return SIM_STATE_NETWORK_LOCKED; 550 } 551 else if ("READY".equals(prop)) { 552 return SIM_STATE_READY; 553 } 554 else { 555 return SIM_STATE_UNKNOWN; 556 } 557 } 558 559 /** 560 * Returns the MCC+MNC (mobile country code + mobile network code) of the 561 * provider of the SIM. 5 or 6 decimal digits. 562 * <p> 563 * Availability: SIM state must be {@link #SIM_STATE_READY} 564 * 565 * @see #getSimState 566 */ 567 public String getSimOperator() { 568 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 569 } 570 571 /** 572 * Returns the Service Provider Name (SPN). 573 * <p> 574 * Availability: SIM state must be {@link #SIM_STATE_READY} 575 * 576 * @see #getSimState 577 */ 578 public String getSimOperatorName() { 579 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 580 } 581 582 /** 583 * Returns the ISO country code equivalent for the SIM provider's country code. 584 */ 585 public String getSimCountryIso() { 586 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 587 } 588 589 /** 590 * Returns the serial number of the SIM, if applicable. Return null if it is 591 * unavailable. 592 * <p> 593 * Requires Permission: 594 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 595 */ 596 public String getSimSerialNumber() { 597 try { 598 return getSubscriberInfo().getIccSerialNumber(); 599 } catch (RemoteException ex) { 600 return null; 601 } catch (NullPointerException ex) { 602 // This could happen before phone restarts due to crashing 603 return null; 604 } 605 } 606 607 // 608 // 609 // Subscriber Info 610 // 611 // 612 613 /** 614 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 615 * Return null if it is unavailable. 616 * <p> 617 * Requires Permission: 618 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 619 */ 620 public String getSubscriberId() { 621 try { 622 return getSubscriberInfo().getSubscriberId(); 623 } catch (RemoteException ex) { 624 return null; 625 } catch (NullPointerException ex) { 626 // This could happen before phone restarts due to crashing 627 return null; 628 } 629 } 630 631 /** 632 * Returns the phone number string for line 1, for example, the MSISDN 633 * for a GSM phone. Return null if it is unavailable. 634 * <p> 635 * Requires Permission: 636 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 637 */ 638 public String getLine1Number() { 639 try { 640 return getSubscriberInfo().getLine1Number(); 641 } catch (RemoteException ex) { 642 return null; 643 } catch (NullPointerException ex) { 644 // This could happen before phone restarts due to crashing 645 return null; 646 } 647 } 648 649 /** 650 * Returns the alphabetic identifier associated with the line 1 number. 651 * Return null if it is unavailable. 652 * <p> 653 * Requires Permission: 654 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 655 * @hide 656 * nobody seems to call this. 657 */ 658 public String getLine1AlphaTag() { 659 try { 660 return getSubscriberInfo().getLine1AlphaTag(); 661 } catch (RemoteException ex) { 662 return null; 663 } catch (NullPointerException ex) { 664 // This could happen before phone restarts due to crashing 665 return null; 666 } 667 } 668 669 /** 670 * Returns the voice mail number. Return null if it is unavailable. 671 * <p> 672 * Requires Permission: 673 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 674 */ 675 public String getVoiceMailNumber() { 676 try { 677 return getSubscriberInfo().getVoiceMailNumber(); 678 } catch (RemoteException ex) { 679 return null; 680 } catch (NullPointerException ex) { 681 // This could happen before phone restarts due to crashing 682 return null; 683 } 684 } 685 686 /** 687 * Returns the complete voice mail number. Return null if it is unavailable. 688 * <p> 689 * Requires Permission: 690 * {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED} 691 * 692 * @hide 693 */ 694 public String getCompleteVoiceMailNumber() { 695 try { 696 return getSubscriberInfo().getCompleteVoiceMailNumber(); 697 } catch (RemoteException ex) { 698 return null; 699 } catch (NullPointerException ex) { 700 // This could happen before phone restarts due to crashing 701 return null; 702 } 703 } 704 705 /** 706 * Returns the voice mail count. Return 0 if unavailable. 707 * <p> 708 * Requires Permission: 709 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 710 * @hide 711 */ 712 public int getVoiceMessageCount() { 713 try { 714 return getITelephony().getVoiceMessageCount(); 715 } catch (RemoteException ex) { 716 return 0; 717 } catch (NullPointerException ex) { 718 // This could happen before phone restarts due to crashing 719 return 0; 720 } 721 } 722 723 /** 724 * Retrieves the alphabetic identifier associated with the voice 725 * mail number. 726 * <p> 727 * Requires Permission: 728 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 729 */ 730 public String getVoiceMailAlphaTag() { 731 try { 732 return getSubscriberInfo().getVoiceMailAlphaTag(); 733 } catch (RemoteException ex) { 734 return null; 735 } catch (NullPointerException ex) { 736 // This could happen before phone restarts due to crashing 737 return null; 738 } 739 } 740 741 private IPhoneSubInfo getSubscriberInfo() { 742 // get it each time because that process crashes a lot 743 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 744 } 745 746 747 /** Device call state: No activity. */ 748 public static final int CALL_STATE_IDLE = 0; 749 /** Device call state: Ringing. A new call arrived and is 750 * ringing or waiting. In the latter case, another call is 751 * already active. */ 752 public static final int CALL_STATE_RINGING = 1; 753 /** Device call state: Off-hook. At least one call exists 754 * that is dialing, active, or on hold, and no calls are ringing 755 * or waiting. */ 756 public static final int CALL_STATE_OFFHOOK = 2; 757 758 /** 759 * Returns a constant indicating the call state (cellular) on the device. 760 */ 761 public int getCallState() { 762 try { 763 return getITelephony().getCallState(); 764 } catch (RemoteException ex) { 765 // the phone process is restarting. 766 return CALL_STATE_IDLE; 767 } catch (NullPointerException ex) { 768 // the phone process is restarting. 769 return CALL_STATE_IDLE; 770 } 771 } 772 773 /** Data connection activity: No traffic. */ 774 public static final int DATA_ACTIVITY_NONE = 0x00000000; 775 /** Data connection activity: Currently receiving IP PPP traffic. */ 776 public static final int DATA_ACTIVITY_IN = 0x00000001; 777 /** Data connection activity: Currently sending IP PPP traffic. */ 778 public static final int DATA_ACTIVITY_OUT = 0x00000002; 779 /** Data connection activity: Currently both sending and receiving 780 * IP PPP traffic. */ 781 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 782 /** 783 * Data connection is active, but physical link is down 784 */ 785 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 786 787 /** 788 * Returns a constant indicating the type of activity on a data connection 789 * (cellular). 790 * 791 * @see #DATA_ACTIVITY_NONE 792 * @see #DATA_ACTIVITY_IN 793 * @see #DATA_ACTIVITY_OUT 794 * @see #DATA_ACTIVITY_INOUT 795 * @see #DATA_ACTIVITY_DORMANT 796 */ 797 public int getDataActivity() { 798 try { 799 return getITelephony().getDataActivity(); 800 } catch (RemoteException ex) { 801 // the phone process is restarting. 802 return DATA_ACTIVITY_NONE; 803 } catch (NullPointerException ex) { 804 // the phone process is restarting. 805 return DATA_ACTIVITY_NONE; 806 } 807 } 808 809 /** Data connection state: Unknown. Used before we know the state. 810 * @hide 811 */ 812 public static final int DATA_UNKNOWN = -1; 813 /** Data connection state: Disconnected. IP traffic not available. */ 814 public static final int DATA_DISCONNECTED = 0; 815 /** Data connection state: Currently setting up a data connection. */ 816 public static final int DATA_CONNECTING = 1; 817 /** Data connection state: Connected. IP traffic should be available. */ 818 public static final int DATA_CONNECTED = 2; 819 /** Data connection state: Suspended. The connection is up, but IP 820 * traffic is temporarily unavailable. For example, in a 2G network, 821 * data activity may be suspended when a voice call arrives. */ 822 public static final int DATA_SUSPENDED = 3; 823 824 /** 825 * Returns a constant indicating the current data connection state 826 * (cellular). 827 * 828 * @see #DATA_DISCONNECTED 829 * @see #DATA_CONNECTING 830 * @see #DATA_CONNECTED 831 * @see #DATA_SUSPENDED 832 */ 833 public int getDataState() { 834 try { 835 return getITelephony().getDataState(); 836 } catch (RemoteException ex) { 837 // the phone process is restarting. 838 return DATA_DISCONNECTED; 839 } catch (NullPointerException ex) { 840 return DATA_DISCONNECTED; 841 } 842 } 843 844 private ITelephony getITelephony() { 845 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 846 } 847 848 // 849 // 850 // PhoneStateListener 851 // 852 // 853 854 /** 855 * Registers a listener object to receive notification of changes 856 * in specified telephony states. 857 * <p> 858 * To register a listener, pass a {@link PhoneStateListener} 859 * and specify at least one telephony state of interest in 860 * the events argument. 861 * 862 * At registration, and when a specified telephony state 863 * changes, the telephony manager invokes the appropriate 864 * callback method on the listener object and passes the 865 * current (udpated) values. 866 * <p> 867 * To unregister a listener, pass the listener object and set the 868 * events argument to 869 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 870 * 871 * @param listener The {@link PhoneStateListener} object to register 872 * (or unregister) 873 * @param events The telephony state(s) of interest to the listener, 874 * as a bitwise-OR combination of {@link PhoneStateListener} 875 * LISTEN_ flags. 876 */ 877 public void listen(PhoneStateListener listener, int events) { 878 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 879 try { 880 Boolean notifyNow = (getITelephony() != null); 881 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 882 } catch (RemoteException ex) { 883 // system process dead 884 } catch (NullPointerException ex) { 885 // system process dead 886 } 887 } 888 889 /** 890 * Returns the CDMA ERI icon index to display 891 * 892 * @hide 893 */ 894 public int getCdmaEriIconIndex() { 895 try { 896 return getITelephony().getCdmaEriIconIndex(); 897 } catch (RemoteException ex) { 898 // the phone process is restarting. 899 return -1; 900 } catch (NullPointerException ex) { 901 return -1; 902 } 903 } 904 905 /** 906 * Returns the CDMA ERI icon mode, 907 * 0 - ON 908 * 1 - FLASHING 909 * 910 * @hide 911 */ 912 public int getCdmaEriIconMode() { 913 try { 914 return getITelephony().getCdmaEriIconMode(); 915 } catch (RemoteException ex) { 916 // the phone process is restarting. 917 return -1; 918 } catch (NullPointerException ex) { 919 return -1; 920 } 921 } 922 923 /** 924 * Returns the CDMA ERI text, 925 * 926 * @hide 927 */ 928 public String getCdmaEriText() { 929 try { 930 return getITelephony().getCdmaEriText(); 931 } catch (RemoteException ex) { 932 // the phone process is restarting. 933 return null; 934 } catch (NullPointerException ex) { 935 return null; 936 } 937 } 938 939 /** 940 * @return true if the current device is "voice capable". 941 * <p> 942 * "Voice capable" means that this device supports circuit-switched 943 * (i.e. voice) phone calls over the telephony network, and is allowed 944 * to display the in-call UI while a cellular voice call is active. 945 * This will be false on "data only" devices which can't make voice 946 * calls and don't support any in-call UI. 947 * <p> 948 * Note: the meaning of this flag is subtly different from the 949 * PackageManager.FEATURE_TELEPHONY system feature, which is available 950 * on any device with a telephony radio, even if the device is 951 * data-only. 952 * 953 * @hide pending API review 954 */ 955 public boolean isVoiceCapable() { 956 return mContext.getResources().getBoolean( 957 com.android.internal.R.bool.config_voice_capable); 958 } 959 960 /** 961 * @return true if the current device supports sms service. 962 * <p> 963 * If true, this means that the device supports both sending and 964 * receiving sms via the telephony network. 965 * <p> 966 * Note: Voicemail waiting sms, cell broadcasting sms, and MMS are 967 * disabled when device doesn't support sms. 968 * 969 * @hide pending API review 970 */ 971 public boolean isSmsCapable() { 972 return mContext.getResources().getBoolean( 973 com.android.internal.R.bool.config_sms_capable); 974 } 975} 976