TelephonyManager.java revision 41a46718b3deec95661e149b3acea2a9e54016be
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 acess 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 * 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 equivilent 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; 392 393 /** 394 * Returns a constant indicating the radio technology (network type) 395 * currently in use on the device. 396 * @return the network type 397 * 398 * @see #NETWORK_TYPE_UNKNOWN 399 * @see #NETWORK_TYPE_GPRS 400 * @see #NETWORK_TYPE_EDGE 401 * @see #NETWORK_TYPE_UMTS 402 * @see #NETWORK_TYPE_HSDPA 403 * @see #NETWORK_TYPE_HSUPA 404 * @see #NETWORK_TYPE_HSPA 405 * @see #NETWORK_TYPE_CDMA 406 * @see #NETWORK_TYPE_EVDO_0 407 * @see #NETWORK_TYPE_EVDO_A 408 * @see #NETWORK_TYPE_1xRTT 409 */ 410 public int getNetworkType() { 411 try{ 412 ITelephony telephony = getITelephony(); 413 if (telephony != null) { 414 return telephony.getNetworkType(); 415 } else { 416 // This can happen when the ITelephony interface is not up yet. 417 return NETWORK_TYPE_UNKNOWN; 418 } 419 } catch(RemoteException ex) { 420 // This shouldn't happen in the normal case 421 return NETWORK_TYPE_UNKNOWN; 422 } catch (NullPointerException ex) { 423 // This could happen before phone restarts due to crashing 424 return NETWORK_TYPE_UNKNOWN; 425 } 426 } 427 428 /** 429 * Returns a string representation of the radio technology (network type) 430 * currently in use on the device. 431 * @return the name of the radio technology 432 * 433 * @hide pending API council review 434 */ 435 public String getNetworkTypeName() { 436 switch (getNetworkType()) { 437 case NETWORK_TYPE_GPRS: 438 return "GPRS"; 439 case NETWORK_TYPE_EDGE: 440 return "EDGE"; 441 case NETWORK_TYPE_UMTS: 442 return "UMTS"; 443 case NETWORK_TYPE_HSDPA: 444 return "HSDPA"; 445 case NETWORK_TYPE_HSUPA: 446 return "HSUPA"; 447 case NETWORK_TYPE_HSPA: 448 return "HSPA"; 449 case NETWORK_TYPE_CDMA: 450 return "CDMA"; 451 case NETWORK_TYPE_EVDO_0: 452 return "CDMA - EvDo rev. 0"; 453 case NETWORK_TYPE_EVDO_A: 454 return "CDMA - EvDo rev. A"; 455 case NETWORK_TYPE_1xRTT: 456 return "CDMA - 1xRTT"; 457 default: 458 return "UNKNOWN"; 459 } 460 } 461 462 // 463 // 464 // SIM Card 465 // 466 // 467 468 /** SIM card state: Unknown. Signifies that the SIM is in transition 469 * between states. For example, when the user inputs the SIM pin 470 * under PIN_REQUIRED state, a query for sim status returns 471 * this state before turning to SIM_STATE_READY. */ 472 public static final int SIM_STATE_UNKNOWN = 0; 473 /** SIM card state: no SIM card is available in the device */ 474 public static final int SIM_STATE_ABSENT = 1; 475 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 476 public static final int SIM_STATE_PIN_REQUIRED = 2; 477 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 478 public static final int SIM_STATE_PUK_REQUIRED = 3; 479 /** SIM card state: Locked: requries a network PIN to unlock */ 480 public static final int SIM_STATE_NETWORK_LOCKED = 4; 481 /** SIM card state: Ready */ 482 public static final int SIM_STATE_READY = 5; 483 484 /** 485 * @return true if a ICC card is present 486 */ 487 public boolean hasIccCard() { 488 try { 489 return getITelephony().hasIccCard(); 490 } catch (RemoteException ex) { 491 // Assume no ICC card if remote exception which shouldn't happen 492 return false; 493 } catch (NullPointerException ex) { 494 // This could happen before phone restarts due to crashing 495 return false; 496 } 497 } 498 499 /** 500 * Returns a constant indicating the state of the 501 * device SIM card. 502 * 503 * @see #SIM_STATE_UNKNOWN 504 * @see #SIM_STATE_ABSENT 505 * @see #SIM_STATE_PIN_REQUIRED 506 * @see #SIM_STATE_PUK_REQUIRED 507 * @see #SIM_STATE_NETWORK_LOCKED 508 * @see #SIM_STATE_READY 509 */ 510 public int getSimState() { 511 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 512 if ("ABSENT".equals(prop)) { 513 return SIM_STATE_ABSENT; 514 } 515 else if ("PIN_REQUIRED".equals(prop)) { 516 return SIM_STATE_PIN_REQUIRED; 517 } 518 else if ("PUK_REQUIRED".equals(prop)) { 519 return SIM_STATE_PUK_REQUIRED; 520 } 521 else if ("NETWORK_LOCKED".equals(prop)) { 522 return SIM_STATE_NETWORK_LOCKED; 523 } 524 else if ("READY".equals(prop)) { 525 return SIM_STATE_READY; 526 } 527 else { 528 return SIM_STATE_UNKNOWN; 529 } 530 } 531 532 /** 533 * Returns the MCC+MNC (mobile country code + mobile network code) of the 534 * provider of the SIM. 5 or 6 decimal digits. 535 * <p> 536 * Availability: SIM state must be {@link #SIM_STATE_READY} 537 * 538 * @see #getSimState 539 */ 540 public String getSimOperator() { 541 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 542 } 543 544 /** 545 * Returns the Service Provider Name (SPN). 546 * <p> 547 * Availability: SIM state must be {@link #SIM_STATE_READY} 548 * 549 * @see #getSimState 550 */ 551 public String getSimOperatorName() { 552 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 553 } 554 555 /** 556 * Returns the ISO country code equivalent for the SIM provider's country code. 557 */ 558 public String getSimCountryIso() { 559 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 560 } 561 562 /** 563 * Returns the serial number of the SIM, if applicable. Return null if it is 564 * unavailable. 565 * <p> 566 * Requires Permission: 567 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 568 */ 569 public String getSimSerialNumber() { 570 try { 571 return getSubscriberInfo().getIccSerialNumber(); 572 } catch (RemoteException ex) { 573 return null; 574 } catch (NullPointerException ex) { 575 // This could happen before phone restarts due to crashing 576 return null; 577 } 578 } 579 580 // 581 // 582 // Subscriber Info 583 // 584 // 585 586 /** 587 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 588 * Return null if it is unavailable. 589 * <p> 590 * Requires Permission: 591 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 592 */ 593 public String getSubscriberId() { 594 try { 595 return getSubscriberInfo().getSubscriberId(); 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 * Returns the phone number string for line 1, for example, the MSISDN 606 * for a GSM phone. Return null if it is unavailable. 607 * <p> 608 * Requires Permission: 609 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 610 */ 611 public String getLine1Number() { 612 try { 613 return getSubscriberInfo().getLine1Number(); 614 } catch (RemoteException ex) { 615 return null; 616 } catch (NullPointerException ex) { 617 // This could happen before phone restarts due to crashing 618 return null; 619 } 620 } 621 622 /** 623 * Returns the alphabetic identifier associated with the line 1 number. 624 * Return null if it is unavailable. 625 * <p> 626 * Requires Permission: 627 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 628 * @hide 629 * nobody seems to call this. 630 */ 631 public String getLine1AlphaTag() { 632 try { 633 return getSubscriberInfo().getLine1AlphaTag(); 634 } catch (RemoteException ex) { 635 return null; 636 } catch (NullPointerException ex) { 637 // This could happen before phone restarts due to crashing 638 return null; 639 } 640 } 641 642 /** 643 * Returns the voice mail number. Return null if it is unavailable. 644 * <p> 645 * Requires Permission: 646 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 647 */ 648 public String getVoiceMailNumber() { 649 try { 650 return getSubscriberInfo().getVoiceMailNumber(); 651 } catch (RemoteException ex) { 652 return null; 653 } catch (NullPointerException ex) { 654 // This could happen before phone restarts due to crashing 655 return null; 656 } 657 } 658 659 /** 660 * Returns the voice mail count. Return 0 if unavailable. 661 * <p> 662 * Requires Permission: 663 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 664 * @hide 665 */ 666 public int getVoiceMessageCount() { 667 try { 668 return getITelephony().getVoiceMessageCount(); 669 } catch (RemoteException ex) { 670 return 0; 671 } catch (NullPointerException ex) { 672 // This could happen before phone restarts due to crashing 673 return 0; 674 } 675 } 676 677 /** 678 * Retrieves the alphabetic identifier associated with the voice 679 * mail number. 680 * <p> 681 * Requires Permission: 682 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 683 */ 684 public String getVoiceMailAlphaTag() { 685 try { 686 return getSubscriberInfo().getVoiceMailAlphaTag(); 687 } catch (RemoteException ex) { 688 return null; 689 } catch (NullPointerException ex) { 690 // This could happen before phone restarts due to crashing 691 return null; 692 } 693 } 694 695 private IPhoneSubInfo getSubscriberInfo() { 696 // get it each time because that process crashes a lot 697 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 698 } 699 700 701 /** Device call state: No activity. */ 702 public static final int CALL_STATE_IDLE = 0; 703 /** Device call state: Ringing. A new call arrived and is 704 * ringing or waiting. In the latter case, another call is 705 * already active. */ 706 public static final int CALL_STATE_RINGING = 1; 707 /** Device call state: Off-hook. At least one call exists 708 * that is dialing, active, or on hold, and no calls are ringing 709 * or waiting. */ 710 public static final int CALL_STATE_OFFHOOK = 2; 711 712 /** 713 * Returns a constant indicating the call state (cellular) on the device. 714 */ 715 public int getCallState() { 716 try { 717 return getITelephony().getCallState(); 718 } catch (RemoteException ex) { 719 // the phone process is restarting. 720 return CALL_STATE_IDLE; 721 } catch (NullPointerException ex) { 722 // the phone process is restarting. 723 return CALL_STATE_IDLE; 724 } 725 } 726 727 /** Data connection activity: No traffic. */ 728 public static final int DATA_ACTIVITY_NONE = 0x00000000; 729 /** Data connection activity: Currently receiving IP PPP traffic. */ 730 public static final int DATA_ACTIVITY_IN = 0x00000001; 731 /** Data connection activity: Currently sending IP PPP traffic. */ 732 public static final int DATA_ACTIVITY_OUT = 0x00000002; 733 /** Data connection activity: Currently both sending and receiving 734 * IP PPP traffic. */ 735 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 736 /** 737 * Data connection is active, but physical link is down 738 */ 739 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 740 741 /** 742 * Returns a constant indicating the type of activity on a data connection 743 * (cellular). 744 * 745 * @see #DATA_ACTIVITY_NONE 746 * @see #DATA_ACTIVITY_IN 747 * @see #DATA_ACTIVITY_OUT 748 * @see #DATA_ACTIVITY_INOUT 749 * @see #DATA_ACTIVITY_DORMANT 750 */ 751 public int getDataActivity() { 752 try { 753 return getITelephony().getDataActivity(); 754 } catch (RemoteException ex) { 755 // the phone process is restarting. 756 return DATA_ACTIVITY_NONE; 757 } catch (NullPointerException ex) { 758 // the phone process is restarting. 759 return DATA_ACTIVITY_NONE; 760 } 761 } 762 763 /** Data connection state: Disconnected. IP traffic not available. */ 764 public static final int DATA_DISCONNECTED = 0; 765 /** Data connection state: Currently setting up a data connection. */ 766 public static final int DATA_CONNECTING = 1; 767 /** Data connection state: Connected. IP traffic should be available. */ 768 public static final int DATA_CONNECTED = 2; 769 /** Data connection state: Suspended. The connection is up, but IP 770 * traffic is temporarily unavailable. For example, in a 2G network, 771 * data activity may be suspended when a voice call arrives. */ 772 public static final int DATA_SUSPENDED = 3; 773 774 /** 775 * Returns a constant indicating the current data connection state 776 * (cellular). 777 * 778 * @see #DATA_DISCONNECTED 779 * @see #DATA_CONNECTING 780 * @see #DATA_CONNECTED 781 * @see #DATA_SUSPENDED 782 */ 783 public int getDataState() { 784 try { 785 return getITelephony().getDataState(); 786 } catch (RemoteException ex) { 787 // the phone process is restarting. 788 return DATA_DISCONNECTED; 789 } catch (NullPointerException ex) { 790 return DATA_DISCONNECTED; 791 } 792 } 793 794 private ITelephony getITelephony() { 795 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 796 } 797 798 // 799 // 800 // PhoneStateListener 801 // 802 // 803 804 /** 805 * Registers a listener object to receive notification of changes 806 * in specified telephony states. 807 * <p> 808 * To register a listener, pass a {@link PhoneStateListener} 809 * and specify at least one telephony state of interest in 810 * the events argument. 811 * 812 * At registration, and when a specified telephony state 813 * changes, the telephony manager invokes the appropriate 814 * callback method on the listener object and passes the 815 * current (udpated) values. 816 * <p> 817 * To unregister a listener, pass the listener object and set the 818 * events argument to 819 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 820 * 821 * @param listener The {@link PhoneStateListener} object to register 822 * (or unregister) 823 * @param events The telephony state(s) of interest to the listener, 824 * as a bitwise-OR combination of {@link PhoneStateListener} 825 * LISTEN_ flags. 826 */ 827 public void listen(PhoneStateListener listener, int events) { 828 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 829 try { 830 Boolean notifyNow = (getITelephony() != null); 831 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 832 } catch (RemoteException ex) { 833 // system process dead 834 } catch (NullPointerException ex) { 835 // system process dead 836 } 837 } 838 839 /** 840 * Returns the CDMA ERI icon index to display 841 * 842 * @hide 843 */ 844 public int getCdmaEriIconIndex() { 845 try { 846 return getITelephony().getCdmaEriIconIndex(); 847 } catch (RemoteException ex) { 848 // the phone process is restarting. 849 return -1; 850 } catch (NullPointerException ex) { 851 return -1; 852 } 853 } 854 855 /** 856 * Returns the CDMA ERI icon mode, 857 * 0 - ON 858 * 1 - FLASHING 859 * 860 * @hide 861 */ 862 public int getCdmaEriIconMode() { 863 try { 864 return getITelephony().getCdmaEriIconMode(); 865 } catch (RemoteException ex) { 866 // the phone process is restarting. 867 return -1; 868 } catch (NullPointerException ex) { 869 return -1; 870 } 871 } 872 873 /** 874 * Returns the CDMA ERI text, 875 * 876 * @hide 877 */ 878 public String getCdmaEriText() { 879 try { 880 return getITelephony().getCdmaEriText(); 881 } catch (RemoteException ex) { 882 // the phone process is restarting. 883 return null; 884 } catch (NullPointerException ex) { 885 return null; 886 } 887 } 888} 889