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; 275 276 /** 277 * Returns a constant indicating the device phone type. 278 * 279 * @see #PHONE_TYPE_NONE 280 * @see #PHONE_TYPE_GSM 281 * @see #PHONE_TYPE_CDMA 282 */ 283 public int getPhoneType() { 284 try{ 285 ITelephony telephony = getITelephony(); 286 if (telephony != null) { 287 return telephony.getActivePhoneType(); 288 } else { 289 // This can happen when the ITelephony interface is not up yet. 290 return getPhoneTypeFromProperty(); 291 } 292 } catch (RemoteException ex) { 293 // This shouldn't happen in the normal case, as a backup we 294 // read from the system property. 295 return getPhoneTypeFromProperty(); 296 } catch (NullPointerException ex) { 297 // This shouldn't happen in the normal case, as a backup we 298 // read from the system property. 299 return getPhoneTypeFromProperty(); 300 } 301 } 302 303 304 private int getPhoneTypeFromProperty() { 305 int type = 306 SystemProperties.getInt(TelephonyProperties.CURRENT_ACTIVE_PHONE, 307 getPhoneTypeFromNetworkType()); 308 return type; 309 } 310 311 private int getPhoneTypeFromNetworkType() { 312 // When the system property CURRENT_ACTIVE_PHONE, has not been set, 313 // use the system property for default network type. 314 // This is a fail safe, and can only happen at first boot. 315 int mode = SystemProperties.getInt("ro.telephony.default_network", -1); 316 if (mode == -1) 317 return PHONE_TYPE_NONE; 318 return PhoneFactory.getPhoneType(mode); 319 } 320 // 321 // 322 // Current Network 323 // 324 // 325 326 /** 327 * Returns the alphabetic name of current registered operator. 328 * <p> 329 * Availability: Only when user is registered to a network. Result may be 330 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 331 * on a CDMA network). 332 */ 333 public String getNetworkOperatorName() { 334 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA); 335 } 336 337 /** 338 * Returns the numeric name (MCC+MNC) of current registered operator. 339 * <p> 340 * Availability: Only when user is registered to a network. Result may be 341 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 342 * on a CDMA network). 343 */ 344 public String getNetworkOperator() { 345 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC); 346 } 347 348 /** 349 * Returns true if the device is considered roaming on the current 350 * network, for GSM purposes. 351 * <p> 352 * Availability: Only when user registered to a network. 353 */ 354 public boolean isNetworkRoaming() { 355 return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING)); 356 } 357 358 /** 359 * Returns the ISO country code equivalent of the current registered 360 * operator's MCC (Mobile Country Code). 361 * <p> 362 * Availability: Only when user is registered to a network. Result may be 363 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 364 * on a CDMA network). 365 */ 366 public String getNetworkCountryIso() { 367 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY); 368 } 369 370 /** Network type is unknown */ 371 public static final int NETWORK_TYPE_UNKNOWN = 0; 372 /** Current network is GPRS */ 373 public static final int NETWORK_TYPE_GPRS = 1; 374 /** Current network is EDGE */ 375 public static final int NETWORK_TYPE_EDGE = 2; 376 /** Current network is UMTS */ 377 public static final int NETWORK_TYPE_UMTS = 3; 378 /** Current network is CDMA: Either IS95A or IS95B*/ 379 public static final int NETWORK_TYPE_CDMA = 4; 380 /** Current network is EVDO revision 0*/ 381 public static final int NETWORK_TYPE_EVDO_0 = 5; 382 /** Current network is EVDO revision A*/ 383 public static final int NETWORK_TYPE_EVDO_A = 6; 384 /** Current network is 1xRTT*/ 385 public static final int NETWORK_TYPE_1xRTT = 7; 386 /** Current network is HSDPA */ 387 public static final int NETWORK_TYPE_HSDPA = 8; 388 /** Current network is HSUPA */ 389 public static final int NETWORK_TYPE_HSUPA = 9; 390 /** Current network is HSPA */ 391 public static final int NETWORK_TYPE_HSPA = 10; 392 /** Current network is iDen */ 393 public static final int NETWORK_TYPE_IDEN = 11; 394 395 /** 396 * Returns a constant indicating the radio technology (network type) 397 * currently in use on the device. 398 * @return the network type 399 * 400 * @see #NETWORK_TYPE_UNKNOWN 401 * @see #NETWORK_TYPE_GPRS 402 * @see #NETWORK_TYPE_EDGE 403 * @see #NETWORK_TYPE_UMTS 404 * @see #NETWORK_TYPE_HSDPA 405 * @see #NETWORK_TYPE_HSUPA 406 * @see #NETWORK_TYPE_HSPA 407 * @see #NETWORK_TYPE_CDMA 408 * @see #NETWORK_TYPE_EVDO_0 409 * @see #NETWORK_TYPE_EVDO_A 410 * @see #NETWORK_TYPE_1xRTT 411 */ 412 public int getNetworkType() { 413 try{ 414 ITelephony telephony = getITelephony(); 415 if (telephony != null) { 416 return telephony.getNetworkType(); 417 } else { 418 // This can happen when the ITelephony interface is not up yet. 419 return NETWORK_TYPE_UNKNOWN; 420 } 421 } catch(RemoteException ex) { 422 // This shouldn't happen in the normal case 423 return NETWORK_TYPE_UNKNOWN; 424 } catch (NullPointerException ex) { 425 // This could happen before phone restarts due to crashing 426 return NETWORK_TYPE_UNKNOWN; 427 } 428 } 429 430 /** 431 * Returns a string representation of the radio technology (network type) 432 * currently in use on the device. 433 * @return the name of the radio technology 434 * 435 * @hide pending API council review 436 */ 437 public String getNetworkTypeName() { 438 switch (getNetworkType()) { 439 case NETWORK_TYPE_GPRS: 440 return "GPRS"; 441 case NETWORK_TYPE_EDGE: 442 return "EDGE"; 443 case NETWORK_TYPE_UMTS: 444 return "UMTS"; 445 case NETWORK_TYPE_HSDPA: 446 return "HSDPA"; 447 case NETWORK_TYPE_HSUPA: 448 return "HSUPA"; 449 case NETWORK_TYPE_HSPA: 450 return "HSPA"; 451 case NETWORK_TYPE_CDMA: 452 return "CDMA"; 453 case NETWORK_TYPE_EVDO_0: 454 return "CDMA - EvDo rev. 0"; 455 case NETWORK_TYPE_EVDO_A: 456 return "CDMA - EvDo rev. A"; 457 case NETWORK_TYPE_1xRTT: 458 return "CDMA - 1xRTT"; 459 default: 460 return "UNKNOWN"; 461 } 462 } 463 464 // 465 // 466 // SIM Card 467 // 468 // 469 470 /** SIM card state: Unknown. Signifies that the SIM is in transition 471 * between states. For example, when the user inputs the SIM pin 472 * under PIN_REQUIRED state, a query for sim status returns 473 * this state before turning to SIM_STATE_READY. */ 474 public static final int SIM_STATE_UNKNOWN = 0; 475 /** SIM card state: no SIM card is available in the device */ 476 public static final int SIM_STATE_ABSENT = 1; 477 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 478 public static final int SIM_STATE_PIN_REQUIRED = 2; 479 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 480 public static final int SIM_STATE_PUK_REQUIRED = 3; 481 /** SIM card state: Locked: requries a network PIN to unlock */ 482 public static final int SIM_STATE_NETWORK_LOCKED = 4; 483 /** SIM card state: Ready */ 484 public static final int SIM_STATE_READY = 5; 485 486 /** 487 * @return true if a ICC card is present 488 */ 489 public boolean hasIccCard() { 490 try { 491 return getITelephony().hasIccCard(); 492 } catch (RemoteException ex) { 493 // Assume no ICC card if remote exception which shouldn't happen 494 return false; 495 } catch (NullPointerException ex) { 496 // This could happen before phone restarts due to crashing 497 return false; 498 } 499 } 500 501 /** 502 * Returns a constant indicating the state of the 503 * device SIM card. 504 * 505 * @see #SIM_STATE_UNKNOWN 506 * @see #SIM_STATE_ABSENT 507 * @see #SIM_STATE_PIN_REQUIRED 508 * @see #SIM_STATE_PUK_REQUIRED 509 * @see #SIM_STATE_NETWORK_LOCKED 510 * @see #SIM_STATE_READY 511 */ 512 public int getSimState() { 513 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 514 if ("ABSENT".equals(prop)) { 515 return SIM_STATE_ABSENT; 516 } 517 else if ("PIN_REQUIRED".equals(prop)) { 518 return SIM_STATE_PIN_REQUIRED; 519 } 520 else if ("PUK_REQUIRED".equals(prop)) { 521 return SIM_STATE_PUK_REQUIRED; 522 } 523 else if ("NETWORK_LOCKED".equals(prop)) { 524 return SIM_STATE_NETWORK_LOCKED; 525 } 526 else if ("READY".equals(prop)) { 527 return SIM_STATE_READY; 528 } 529 else { 530 return SIM_STATE_UNKNOWN; 531 } 532 } 533 534 /** 535 * Returns the MCC+MNC (mobile country code + mobile network code) of the 536 * provider of the SIM. 5 or 6 decimal digits. 537 * <p> 538 * Availability: SIM state must be {@link #SIM_STATE_READY} 539 * 540 * @see #getSimState 541 */ 542 public String getSimOperator() { 543 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 544 } 545 546 /** 547 * Returns the Service Provider Name (SPN). 548 * <p> 549 * Availability: SIM state must be {@link #SIM_STATE_READY} 550 * 551 * @see #getSimState 552 */ 553 public String getSimOperatorName() { 554 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 555 } 556 557 /** 558 * Returns the ISO country code equivalent for the SIM provider's country code. 559 */ 560 public String getSimCountryIso() { 561 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 562 } 563 564 /** 565 * Returns the serial number of the SIM, if applicable. Return null if it is 566 * unavailable. 567 * <p> 568 * Requires Permission: 569 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 570 */ 571 public String getSimSerialNumber() { 572 try { 573 return getSubscriberInfo().getIccSerialNumber(); 574 } catch (RemoteException ex) { 575 return null; 576 } catch (NullPointerException ex) { 577 // This could happen before phone restarts due to crashing 578 return null; 579 } 580 } 581 582 // 583 // 584 // Subscriber Info 585 // 586 // 587 588 /** 589 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 590 * Return null if it is unavailable. 591 * <p> 592 * Requires Permission: 593 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 594 */ 595 public String getSubscriberId() { 596 try { 597 return getSubscriberInfo().getSubscriberId(); 598 } catch (RemoteException ex) { 599 return null; 600 } catch (NullPointerException ex) { 601 // This could happen before phone restarts due to crashing 602 return null; 603 } 604 } 605 606 /** 607 * Returns the phone number string for line 1, for example, the MSISDN 608 * for a GSM phone. Return null if it is unavailable. 609 * <p> 610 * Requires Permission: 611 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 612 */ 613 public String getLine1Number() { 614 try { 615 return getSubscriberInfo().getLine1Number(); 616 } catch (RemoteException ex) { 617 return null; 618 } catch (NullPointerException ex) { 619 // This could happen before phone restarts due to crashing 620 return null; 621 } 622 } 623 624 /** 625 * Returns the alphabetic identifier associated with the line 1 number. 626 * Return null if it is unavailable. 627 * <p> 628 * Requires Permission: 629 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 630 * @hide 631 * nobody seems to call this. 632 */ 633 public String getLine1AlphaTag() { 634 try { 635 return getSubscriberInfo().getLine1AlphaTag(); 636 } catch (RemoteException ex) { 637 return null; 638 } catch (NullPointerException ex) { 639 // This could happen before phone restarts due to crashing 640 return null; 641 } 642 } 643 644 /** 645 * Returns the voice mail number. Return null if it is unavailable. 646 * <p> 647 * Requires Permission: 648 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 649 */ 650 public String getVoiceMailNumber() { 651 try { 652 return getSubscriberInfo().getVoiceMailNumber(); 653 } catch (RemoteException ex) { 654 return null; 655 } catch (NullPointerException ex) { 656 // This could happen before phone restarts due to crashing 657 return null; 658 } 659 } 660 661 /** 662 * Returns the complete voice mail number. Return null if it is unavailable. 663 * <p> 664 * Requires Permission: 665 * {@link android.Manifest.permission#CALL_PRIVILEGED CALL_PRIVILEGED} 666 * 667 * @hide 668 */ 669 public String getCompleteVoiceMailNumber() { 670 try { 671 return getSubscriberInfo().getCompleteVoiceMailNumber(); 672 } catch (RemoteException ex) { 673 return null; 674 } catch (NullPointerException ex) { 675 // This could happen before phone restarts due to crashing 676 return null; 677 } 678 } 679 680 /** 681 * Returns the voice mail count. Return 0 if unavailable. 682 * <p> 683 * Requires Permission: 684 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 685 * @hide 686 */ 687 public int getVoiceMessageCount() { 688 try { 689 return getITelephony().getVoiceMessageCount(); 690 } catch (RemoteException ex) { 691 return 0; 692 } catch (NullPointerException ex) { 693 // This could happen before phone restarts due to crashing 694 return 0; 695 } 696 } 697 698 /** 699 * Retrieves the alphabetic identifier associated with the voice 700 * mail number. 701 * <p> 702 * Requires Permission: 703 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 704 */ 705 public String getVoiceMailAlphaTag() { 706 try { 707 return getSubscriberInfo().getVoiceMailAlphaTag(); 708 } catch (RemoteException ex) { 709 return null; 710 } catch (NullPointerException ex) { 711 // This could happen before phone restarts due to crashing 712 return null; 713 } 714 } 715 716 private IPhoneSubInfo getSubscriberInfo() { 717 // get it each time because that process crashes a lot 718 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 719 } 720 721 722 /** Device call state: No activity. */ 723 public static final int CALL_STATE_IDLE = 0; 724 /** Device call state: Ringing. A new call arrived and is 725 * ringing or waiting. In the latter case, another call is 726 * already active. */ 727 public static final int CALL_STATE_RINGING = 1; 728 /** Device call state: Off-hook. At least one call exists 729 * that is dialing, active, or on hold, and no calls are ringing 730 * or waiting. */ 731 public static final int CALL_STATE_OFFHOOK = 2; 732 733 /** 734 * Returns a constant indicating the call state (cellular) on the device. 735 */ 736 public int getCallState() { 737 try { 738 return getITelephony().getCallState(); 739 } catch (RemoteException ex) { 740 // the phone process is restarting. 741 return CALL_STATE_IDLE; 742 } catch (NullPointerException ex) { 743 // the phone process is restarting. 744 return CALL_STATE_IDLE; 745 } 746 } 747 748 /** Data connection activity: No traffic. */ 749 public static final int DATA_ACTIVITY_NONE = 0x00000000; 750 /** Data connection activity: Currently receiving IP PPP traffic. */ 751 public static final int DATA_ACTIVITY_IN = 0x00000001; 752 /** Data connection activity: Currently sending IP PPP traffic. */ 753 public static final int DATA_ACTIVITY_OUT = 0x00000002; 754 /** Data connection activity: Currently both sending and receiving 755 * IP PPP traffic. */ 756 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 757 /** 758 * Data connection is active, but physical link is down 759 */ 760 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 761 762 /** 763 * Returns a constant indicating the type of activity on a data connection 764 * (cellular). 765 * 766 * @see #DATA_ACTIVITY_NONE 767 * @see #DATA_ACTIVITY_IN 768 * @see #DATA_ACTIVITY_OUT 769 * @see #DATA_ACTIVITY_INOUT 770 * @see #DATA_ACTIVITY_DORMANT 771 */ 772 public int getDataActivity() { 773 try { 774 return getITelephony().getDataActivity(); 775 } catch (RemoteException ex) { 776 // the phone process is restarting. 777 return DATA_ACTIVITY_NONE; 778 } catch (NullPointerException ex) { 779 // the phone process is restarting. 780 return DATA_ACTIVITY_NONE; 781 } 782 } 783 784 /** Data connection state: Disconnected. IP traffic not available. */ 785 public static final int DATA_DISCONNECTED = 0; 786 /** Data connection state: Currently setting up a data connection. */ 787 public static final int DATA_CONNECTING = 1; 788 /** Data connection state: Connected. IP traffic should be available. */ 789 public static final int DATA_CONNECTED = 2; 790 /** Data connection state: Suspended. The connection is up, but IP 791 * traffic is temporarily unavailable. For example, in a 2G network, 792 * data activity may be suspended when a voice call arrives. */ 793 public static final int DATA_SUSPENDED = 3; 794 795 /** 796 * Returns a constant indicating the current data connection state 797 * (cellular). 798 * 799 * @see #DATA_DISCONNECTED 800 * @see #DATA_CONNECTING 801 * @see #DATA_CONNECTED 802 * @see #DATA_SUSPENDED 803 */ 804 public int getDataState() { 805 try { 806 return getITelephony().getDataState(); 807 } catch (RemoteException ex) { 808 // the phone process is restarting. 809 return DATA_DISCONNECTED; 810 } catch (NullPointerException ex) { 811 return DATA_DISCONNECTED; 812 } 813 } 814 815 private ITelephony getITelephony() { 816 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 817 } 818 819 // 820 // 821 // PhoneStateListener 822 // 823 // 824 825 /** 826 * Registers a listener object to receive notification of changes 827 * in specified telephony states. 828 * <p> 829 * To register a listener, pass a {@link PhoneStateListener} 830 * and specify at least one telephony state of interest in 831 * the events argument. 832 * 833 * At registration, and when a specified telephony state 834 * changes, the telephony manager invokes the appropriate 835 * callback method on the listener object and passes the 836 * current (udpated) values. 837 * <p> 838 * To unregister a listener, pass the listener object and set the 839 * events argument to 840 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 841 * 842 * @param listener The {@link PhoneStateListener} object to register 843 * (or unregister) 844 * @param events The telephony state(s) of interest to the listener, 845 * as a bitwise-OR combination of {@link PhoneStateListener} 846 * LISTEN_ flags. 847 */ 848 public void listen(PhoneStateListener listener, int events) { 849 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 850 try { 851 Boolean notifyNow = (getITelephony() != null); 852 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 853 } catch (RemoteException ex) { 854 // system process dead 855 } catch (NullPointerException ex) { 856 // system process dead 857 } 858 } 859 860 /** 861 * Returns the CDMA ERI icon index to display 862 * 863 * @hide 864 */ 865 public int getCdmaEriIconIndex() { 866 try { 867 return getITelephony().getCdmaEriIconIndex(); 868 } catch (RemoteException ex) { 869 // the phone process is restarting. 870 return -1; 871 } catch (NullPointerException ex) { 872 return -1; 873 } 874 } 875 876 /** 877 * Returns the CDMA ERI icon mode, 878 * 0 - ON 879 * 1 - FLASHING 880 * 881 * @hide 882 */ 883 public int getCdmaEriIconMode() { 884 try { 885 return getITelephony().getCdmaEriIconMode(); 886 } catch (RemoteException ex) { 887 // the phone process is restarting. 888 return -1; 889 } catch (NullPointerException ex) { 890 return -1; 891 } 892 } 893 894 /** 895 * Returns the CDMA ERI text, 896 * 897 * @hide 898 */ 899 public String getCdmaEriText() { 900 try { 901 return getITelephony().getCdmaEriText(); 902 } catch (RemoteException ex) { 903 // the phone process is restarting. 904 return null; 905 } catch (NullPointerException ex) { 906 return null; 907 } 908 } 909} 910