TelephonyManager.java revision 3cc97f8dbc22eff56f17f30e1633084af507eff4
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 return CellLocation.newFromBundle(bundle); 207 } catch (RemoteException ex) { 208 return null; 209 } catch (NullPointerException ex) { 210 return null; 211 } 212 } 213 214 /** 215 * Enables location update notifications. {@link PhoneStateListener#onCellLocationChanged 216 * PhoneStateListener.onCellLocationChanged} will be called on location updates. 217 * 218 * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES 219 * CONTROL_LOCATION_UPDATES} 220 * 221 * @hide 222 */ 223 public void enableLocationUpdates() { 224 try { 225 getITelephony().enableLocationUpdates(); 226 } catch (RemoteException ex) { 227 } catch (NullPointerException ex) { 228 } 229 } 230 231 /** 232 * Disables location update notifications. {@link PhoneStateListener#onCellLocationChanged 233 * PhoneStateListener.onCellLocationChanged} will be called on location updates. 234 * 235 * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES 236 * CONTROL_LOCATION_UPDATES} 237 * 238 * @hide 239 */ 240 public void disableLocationUpdates() { 241 try { 242 getITelephony().disableLocationUpdates(); 243 } catch (RemoteException ex) { 244 } catch (NullPointerException ex) { 245 } 246 } 247 248 /** 249 * Returns the neighboring cell information of the device. 250 * 251 * @return List of NeighboringCellInfo or null if info unavailable. 252 * 253 * <p>Requires Permission: 254 * (@link android.Manifest.permission#ACCESS_COARSE_UPDATES} 255 */ 256 public List<NeighboringCellInfo> getNeighboringCellInfo() { 257 try { 258 return getITelephony().getNeighboringCellInfo(); 259 } catch (RemoteException ex) { 260 return null; 261 } catch (NullPointerException ex) { 262 return null; 263 } 264 } 265 266 /** No phone radio. */ 267 public static final int PHONE_TYPE_NONE = Phone.PHONE_TYPE_NONE; 268 /** Phone radio is GSM. */ 269 public static final int PHONE_TYPE_GSM = Phone.PHONE_TYPE_GSM; 270 /** Phone radio is CDMA. */ 271 public static final int PHONE_TYPE_CDMA = Phone.PHONE_TYPE_CDMA; 272 273 /** 274 * Returns a constant indicating the device phone type. 275 * 276 * @see #PHONE_TYPE_NONE 277 * @see #PHONE_TYPE_GSM 278 * @see #PHONE_TYPE_CDMA 279 */ 280 public int getPhoneType() { 281 try{ 282 ITelephony telephony = getITelephony(); 283 if (telephony != null) { 284 return telephony.getActivePhoneType(); 285 } else { 286 // This can happen when the ITelephony interface is not up yet. 287 return getPhoneTypeFromProperty(); 288 } 289 } catch (RemoteException ex) { 290 // This shouldn't happen in the normal case, as a backup we 291 // read from the system property. 292 return getPhoneTypeFromProperty(); 293 } catch (NullPointerException ex) { 294 // This shouldn't happen in the normal case, as a backup we 295 // read from the system property. 296 return getPhoneTypeFromProperty(); 297 } 298 } 299 300 301 private int getPhoneTypeFromProperty() { 302 int type = 303 SystemProperties.getInt(TelephonyProperties.CURRENT_ACTIVE_PHONE, 304 getPhoneTypeFromNetworkType()); 305 return type; 306 } 307 308 private int getPhoneTypeFromNetworkType() { 309 // When the system property CURRENT_ACTIVE_PHONE, has not been set, 310 // use the system property for default network type. 311 // This is a fail safe, and can only happen at first boot. 312 int mode = SystemProperties.getInt("ro.telephony.default_network", -1); 313 if (mode == -1) 314 return PHONE_TYPE_NONE; 315 return PhoneFactory.getPhoneType(mode); 316 } 317 // 318 // 319 // Current Network 320 // 321 // 322 323 /** 324 * Returns the alphabetic name of current registered operator. 325 * <p> 326 * Availability: Only when user is registered to a network. Result may be 327 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 328 * on a CDMA network). 329 */ 330 public String getNetworkOperatorName() { 331 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA); 332 } 333 334 /** 335 * Returns the numeric name (MCC+MNC) of current registered operator. 336 * <p> 337 * Availability: Only when user is registered to a network. Result may be 338 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 339 * on a CDMA network). 340 */ 341 public String getNetworkOperator() { 342 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC); 343 } 344 345 /** 346 * Returns true if the device is considered roaming on the current 347 * network, for GSM purposes. 348 * <p> 349 * Availability: Only when user registered to a network. 350 */ 351 public boolean isNetworkRoaming() { 352 return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING)); 353 } 354 355 /** 356 * Returns the ISO country code equivilent of the current registered 357 * operator's MCC (Mobile Country Code). 358 * <p> 359 * Availability: Only when user is registered to a network. Result may be 360 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 361 * on a CDMA network). 362 */ 363 public String getNetworkCountryIso() { 364 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY); 365 } 366 367 /** Network type is unknown */ 368 public static final int NETWORK_TYPE_UNKNOWN = 0; 369 /** Current network is GPRS */ 370 public static final int NETWORK_TYPE_GPRS = 1; 371 /** Current network is EDGE */ 372 public static final int NETWORK_TYPE_EDGE = 2; 373 /** Current network is UMTS */ 374 public static final int NETWORK_TYPE_UMTS = 3; 375 /** Current network is CDMA: Either IS95A or IS95B*/ 376 /** @hide */ 377 public static final int NETWORK_TYPE_CDMA = 4; 378 /** Current network is EVDO revision 0 or revision A*/ 379 /** @hide */ 380 public static final int NETWORK_TYPE_EVDO_0 = 5; 381 /** @hide */ 382 public static final int NETWORK_TYPE_EVDO_A = 6; 383 /** Current network is 1xRTT*/ 384 /** @hide */ 385 public static final int NETWORK_TYPE_1xRTT = 7; 386 /** Current network is HSDPA */ 387 /** @hide */ 388 public static final int NETWORK_TYPE_HSDPA = 8; 389 /** Current network is HSUPA */ 390 /** @hide */ 391 public static final int NETWORK_TYPE_HSUPA = 9; 392 /** Current network is HSPA */ 393 /** @hide */ 394 public static final int NETWORK_TYPE_HSPA = 10; 395 396 /** 397 * Returns a constant indicating the radio technology (network type) 398 * currently in use on the device. 399 * @return the network type 400 * 401 * @see #NETWORK_TYPE_UNKNOWN 402 * @see #NETWORK_TYPE_GPRS 403 * @see #NETWORK_TYPE_EDGE 404 * @see #NETWORK_TYPE_UMTS 405 * @see #NETWORK_TYPE_HSDPA 406 * @see #NETWORK_TYPE_HSUPA 407 * @see #NETWORK_TYPE_HSPA 408 * @see #NETWORK_TYPE_CDMA 409 * @see #NETWORK_TYPE_EVDO_0 410 * @see #NETWORK_TYPE_EVDO_A 411 * @see #NETWORK_TYPE_1xRTT 412 */ 413 public int getNetworkType() { 414 try{ 415 ITelephony telephony = getITelephony(); 416 if (telephony != null) { 417 return telephony.getNetworkType(); 418 } else { 419 // This can happen when the ITelephony interface is not up yet. 420 return NETWORK_TYPE_UNKNOWN; 421 } 422 } catch(RemoteException ex) { 423 // This shouldn't happen in the normal case 424 return NETWORK_TYPE_UNKNOWN; 425 } catch (NullPointerException ex) { 426 // This could happen before phone restarts due to crashing 427 return NETWORK_TYPE_UNKNOWN; 428 } 429 } 430 431 /** 432 * Returns a string representation of the radio technology (network type) 433 * currently in use on the device. 434 * @return the name of the radio technology 435 * 436 * @hide pending API council review 437 */ 438 public String getNetworkTypeName() { 439 switch (getNetworkType()) { 440 case NETWORK_TYPE_GPRS: 441 return "GPRS"; 442 case NETWORK_TYPE_EDGE: 443 return "EDGE"; 444 case NETWORK_TYPE_UMTS: 445 return "UMTS"; 446 case NETWORK_TYPE_HSDPA: 447 return "HSDPA"; 448 case NETWORK_TYPE_HSUPA: 449 return "HSUPA"; 450 case NETWORK_TYPE_HSPA: 451 return "HSPA"; 452 case NETWORK_TYPE_CDMA: 453 return "CDMA"; 454 case NETWORK_TYPE_EVDO_0: 455 return "CDMA - EvDo rev. 0"; 456 case NETWORK_TYPE_EVDO_A: 457 return "CDMA - EvDo rev. A"; 458 case NETWORK_TYPE_1xRTT: 459 return "CDMA - 1xRTT"; 460 default: 461 return "UNKNOWN"; 462 } 463 } 464 465 // 466 // 467 // SIM Card 468 // 469 // 470 471 /** SIM card state: Unknown. Signifies that the SIM is in transition 472 * between states. For example, when the user inputs the SIM pin 473 * under PIN_REQUIRED state, a query for sim status returns 474 * this state before turning to SIM_STATE_READY. */ 475 public static final int SIM_STATE_UNKNOWN = 0; 476 /** SIM card state: no SIM card is available in the device */ 477 public static final int SIM_STATE_ABSENT = 1; 478 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 479 public static final int SIM_STATE_PIN_REQUIRED = 2; 480 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 481 public static final int SIM_STATE_PUK_REQUIRED = 3; 482 /** SIM card state: Locked: requries a network PIN to unlock */ 483 public static final int SIM_STATE_NETWORK_LOCKED = 4; 484 /** SIM card state: Ready */ 485 public static final int SIM_STATE_READY = 5; 486 487 /** 488 * @return true if a ICC card is present 489 */ 490 public boolean hasIccCard() { 491 try { 492 return getITelephony().hasIccCard(); 493 } catch (RemoteException ex) { 494 // Assume no ICC card if remote exception which shouldn't happen 495 return false; 496 } catch (NullPointerException ex) { 497 // This could happen before phone restarts due to crashing 498 return false; 499 } 500 } 501 502 /** 503 * Returns a constant indicating the state of the 504 * device SIM card. 505 * 506 * @see #SIM_STATE_UNKNOWN 507 * @see #SIM_STATE_ABSENT 508 * @see #SIM_STATE_PIN_REQUIRED 509 * @see #SIM_STATE_PUK_REQUIRED 510 * @see #SIM_STATE_NETWORK_LOCKED 511 * @see #SIM_STATE_READY 512 */ 513 public int getSimState() { 514 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 515 if ("ABSENT".equals(prop)) { 516 return SIM_STATE_ABSENT; 517 } 518 else if ("PIN_REQUIRED".equals(prop)) { 519 return SIM_STATE_PIN_REQUIRED; 520 } 521 else if ("PUK_REQUIRED".equals(prop)) { 522 return SIM_STATE_PUK_REQUIRED; 523 } 524 else if ("NETWORK_LOCKED".equals(prop)) { 525 return SIM_STATE_NETWORK_LOCKED; 526 } 527 else if ("READY".equals(prop)) { 528 return SIM_STATE_READY; 529 } 530 else { 531 return SIM_STATE_UNKNOWN; 532 } 533 } 534 535 /** 536 * Returns the MCC+MNC (mobile country code + mobile network code) of the 537 * provider of the SIM. 5 or 6 decimal digits. 538 * <p> 539 * Availability: SIM state must be {@link #SIM_STATE_READY} 540 * 541 * @see #getSimState 542 */ 543 public String getSimOperator() { 544 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 545 } 546 547 /** 548 * Returns the Service Provider Name (SPN). 549 * <p> 550 * Availability: SIM state must be {@link #SIM_STATE_READY} 551 * 552 * @see #getSimState 553 */ 554 public String getSimOperatorName() { 555 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 556 } 557 558 /** 559 * Returns the ISO country code equivalent for the SIM provider's country code. 560 */ 561 public String getSimCountryIso() { 562 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 563 } 564 565 /** 566 * Returns the serial number of the SIM, if applicable. Return null if it is 567 * unavailable. 568 * <p> 569 * Requires Permission: 570 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 571 */ 572 public String getSimSerialNumber() { 573 try { 574 return getSubscriberInfo().getIccSerialNumber(); 575 } catch (RemoteException ex) { 576 return null; 577 } catch (NullPointerException ex) { 578 // This could happen before phone restarts due to crashing 579 return null; 580 } 581 } 582 583 // 584 // 585 // Subscriber Info 586 // 587 // 588 589 /** 590 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 591 * Return null if it is unavailable. 592 * <p> 593 * Requires Permission: 594 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 595 */ 596 public String getSubscriberId() { 597 try { 598 return getSubscriberInfo().getSubscriberId(); 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 * Returns the phone number string for line 1, for example, the MSISDN 609 * for a GSM phone. Return null if it is unavailable. 610 * <p> 611 * Requires Permission: 612 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 613 */ 614 public String getLine1Number() { 615 try { 616 return getSubscriberInfo().getLine1Number(); 617 } catch (RemoteException ex) { 618 return null; 619 } catch (NullPointerException ex) { 620 // This could happen before phone restarts due to crashing 621 return null; 622 } 623 } 624 625 /** 626 * Returns the alphabetic identifier associated with the line 1 number. 627 * Return null if it is unavailable. 628 * <p> 629 * Requires Permission: 630 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 631 * @hide 632 * nobody seems to call this. 633 */ 634 public String getLine1AlphaTag() { 635 try { 636 return getSubscriberInfo().getLine1AlphaTag(); 637 } catch (RemoteException ex) { 638 return null; 639 } catch (NullPointerException ex) { 640 // This could happen before phone restarts due to crashing 641 return null; 642 } 643 } 644 645 /** 646 * Returns the voice mail number. Return null if it is unavailable. 647 * <p> 648 * Requires Permission: 649 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 650 */ 651 public String getVoiceMailNumber() { 652 try { 653 return getSubscriberInfo().getVoiceMailNumber(); 654 } catch (RemoteException ex) { 655 return null; 656 } catch (NullPointerException ex) { 657 // This could happen before phone restarts due to crashing 658 return null; 659 } 660 } 661 662 /** 663 * Returns the voice mail count. Return 0 if unavailable. 664 * <p> 665 * Requires Permission: 666 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 667 * @hide 668 */ 669 public int getVoiceMessageCount() { 670 try { 671 return getITelephony().getVoiceMessageCount(); 672 } catch (RemoteException ex) { 673 return 0; 674 } catch (NullPointerException ex) { 675 // This could happen before phone restarts due to crashing 676 return 0; 677 } 678 } 679 680 /** 681 * Retrieves the alphabetic identifier associated with the voice 682 * mail number. 683 * <p> 684 * Requires Permission: 685 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 686 */ 687 public String getVoiceMailAlphaTag() { 688 try { 689 return getSubscriberInfo().getVoiceMailAlphaTag(); 690 } catch (RemoteException ex) { 691 return null; 692 } catch (NullPointerException ex) { 693 // This could happen before phone restarts due to crashing 694 return null; 695 } 696 } 697 698 private IPhoneSubInfo getSubscriberInfo() { 699 // get it each time because that process crashes a lot 700 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 701 } 702 703 704 /** Device call state: No activity. */ 705 public static final int CALL_STATE_IDLE = 0; 706 /** Device call state: Ringing. A new call arrived and is 707 * ringing or waiting. In the latter case, another call is 708 * already active. */ 709 public static final int CALL_STATE_RINGING = 1; 710 /** Device call state: Off-hook. At least one call exists 711 * that is dialing, active, or on hold, and no calls are ringing 712 * or waiting. */ 713 public static final int CALL_STATE_OFFHOOK = 2; 714 715 /** 716 * Returns a constant indicating the call state (cellular) on the device. 717 */ 718 public int getCallState() { 719 try { 720 return getITelephony().getCallState(); 721 } catch (RemoteException ex) { 722 // the phone process is restarting. 723 return CALL_STATE_IDLE; 724 } catch (NullPointerException ex) { 725 // the phone process is restarting. 726 return CALL_STATE_IDLE; 727 } 728 } 729 730 /** Data connection activity: No traffic. */ 731 public static final int DATA_ACTIVITY_NONE = 0x00000000; 732 /** Data connection activity: Currently receiving IP PPP traffic. */ 733 public static final int DATA_ACTIVITY_IN = 0x00000001; 734 /** Data connection activity: Currently sending IP PPP traffic. */ 735 public static final int DATA_ACTIVITY_OUT = 0x00000002; 736 /** Data connection activity: Currently both sending and receiving 737 * IP PPP traffic. */ 738 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 739 /** 740 * Data connection is active, but physical link is down 741 * @hide 742 */ 743 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 744 745 /** 746 * Returns a constant indicating the type of activity on a data connection 747 * (cellular). 748 * 749 * @see #DATA_ACTIVITY_NONE 750 * @see #DATA_ACTIVITY_IN 751 * @see #DATA_ACTIVITY_OUT 752 * @see #DATA_ACTIVITY_INOUT 753 * @see #DATA_ACTIVITY_DORMANT 754 */ 755 public int getDataActivity() { 756 try { 757 return getITelephony().getDataActivity(); 758 } catch (RemoteException ex) { 759 // the phone process is restarting. 760 return DATA_ACTIVITY_NONE; 761 } catch (NullPointerException ex) { 762 // the phone process is restarting. 763 return DATA_ACTIVITY_NONE; 764 } 765 } 766 767 /** Data connection state: Disconnected. IP traffic not available. */ 768 public static final int DATA_DISCONNECTED = 0; 769 /** Data connection state: Currently setting up a data connection. */ 770 public static final int DATA_CONNECTING = 1; 771 /** Data connection state: Connected. IP traffic should be available. */ 772 public static final int DATA_CONNECTED = 2; 773 /** Data connection state: Suspended. The connection is up, but IP 774 * traffic is temporarily unavailable. For example, in a 2G network, 775 * data activity may be suspended when a voice call arrives. */ 776 public static final int DATA_SUSPENDED = 3; 777 778 /** 779 * Returns a constant indicating the current data connection state 780 * (cellular). 781 * 782 * @see #DATA_DISCONNECTED 783 * @see #DATA_CONNECTING 784 * @see #DATA_CONNECTED 785 * @see #DATA_SUSPENDED 786 */ 787 public int getDataState() { 788 try { 789 return getITelephony().getDataState(); 790 } catch (RemoteException ex) { 791 // the phone process is restarting. 792 return DATA_DISCONNECTED; 793 } catch (NullPointerException ex) { 794 return DATA_DISCONNECTED; 795 } 796 } 797 798 private ITelephony getITelephony() { 799 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 800 } 801 802 // 803 // 804 // PhoneStateListener 805 // 806 // 807 808 /** 809 * Registers a listener object to receive notification of changes 810 * in specified telephony states. 811 * <p> 812 * To register a listener, pass a {@link PhoneStateListener} 813 * and specify at least one telephony state of interest in 814 * the events argument. 815 * 816 * At registration, and when a specified telephony state 817 * changes, the telephony manager invokes the appropriate 818 * callback method on the listener object and passes the 819 * current (udpated) values. 820 * <p> 821 * To unregister a listener, pass the listener object and set the 822 * events argument to 823 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 824 * 825 * @param listener The {@link PhoneStateListener} object to register 826 * (or unregister) 827 * @param events The telephony state(s) of interest to the listener, 828 * as a bitwise-OR combination of {@link PhoneStateListener} 829 * LISTEN_ flags. 830 */ 831 public void listen(PhoneStateListener listener, int events) { 832 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 833 try { 834 Boolean notifyNow = (getITelephony() != null); 835 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 836 } catch (RemoteException ex) { 837 // system process dead 838 } catch (NullPointerException ex) { 839 // system process dead 840 } 841 } 842 843 /** 844 * Returns the CDMA ERI icon index to display 845 * 846 * @hide 847 */ 848 public int getCdmaEriIconIndex() { 849 try { 850 return getITelephony().getCdmaEriIconIndex(); 851 } catch (RemoteException ex) { 852 // the phone process is restarting. 853 return -1; 854 } catch (NullPointerException ex) { 855 return -1; 856 } 857 } 858 859 /** 860 * Returns the CDMA ERI icon mode, 861 * 0 - ON 862 * 1 - FLASHING 863 * 864 * @hide 865 */ 866 public int getCdmaEriIconMode() { 867 try { 868 return getITelephony().getCdmaEriIconMode(); 869 } catch (RemoteException ex) { 870 // the phone process is restarting. 871 return -1; 872 } catch (NullPointerException ex) { 873 return -1; 874 } 875 } 876 877 /** 878 * Returns the CDMA ERI text, 879 * 880 * @hide 881 */ 882 public String getCdmaEriText() { 883 try { 884 return getITelephony().getCdmaEriText(); 885 } catch (RemoteException ex) { 886 // the phone process is restarting. 887 return null; 888 } catch (NullPointerException ex) { 889 return null; 890 } 891 } 892} 893