TelephonyManager.java revision b307c8945d4bf8d843445f3cc6d727f4e43d90f0
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. 163 * 164 * <p>Requires Permission: 165 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 166 */ 167 public String getDeviceSoftwareVersion() { 168 try { 169 return getSubscriberInfo().getDeviceSvn(); 170 } catch (RemoteException ex) { 171 } 172 return null; 173 } 174 175 /** 176 * Returns the unique device ID, for example, the IMEI for GSM and the MEID for CDMA 177 * phones. 178 * 179 * <p>Requires Permission: 180 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 181 */ 182 public String getDeviceId() { 183 try { 184 return getSubscriberInfo().getDeviceId(); 185 } catch (RemoteException ex) { 186 } 187 return null; 188 } 189 190 /** 191 * Returns the current location of the device. 192 * 193 * <p>Requires Permission: 194 * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_COARSE_LOCATION} or 195 * {@link android.Manifest.permission#ACCESS_COARSE_LOCATION ACCESS_FINE_LOCATION}. 196 */ 197 public CellLocation getCellLocation() { 198 try { 199 Bundle bundle = getITelephony().getCellLocation(); 200 return CellLocation.newFromBundle(bundle); 201 } catch (RemoteException ex) { 202 } 203 return null; 204 } 205 206 /** 207 * Enables location update notifications. {@link PhoneStateListener#onCellLocationChanged 208 * PhoneStateListener.onCellLocationChanged} will be called on location updates. 209 * 210 * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES 211 * CONTROL_LOCATION_UPDATES} 212 * 213 * @hide 214 */ 215 public void enableLocationUpdates() { 216 try { 217 getITelephony().enableLocationUpdates(); 218 } catch (RemoteException ex) { 219 } 220 } 221 222 /** 223 * Disables location update notifications. {@link PhoneStateListener#onCellLocationChanged 224 * PhoneStateListener.onCellLocationChanged} will be called on location updates. 225 * 226 * <p>Requires Permission: {@link android.Manifest.permission#CONTROL_LOCATION_UPDATES 227 * CONTROL_LOCATION_UPDATES} 228 * 229 * @hide 230 */ 231 public void disableLocationUpdates() { 232 try { 233 getITelephony().disableLocationUpdates(); 234 } catch (RemoteException ex) { 235 } 236 } 237 238 /** 239 * Returns the neighboring cell information of the device. 240 * 241 * @return List of NeighboringCellInfo or null if info unavailable. 242 * 243 * <p>Requires Permission: 244 * (@link android.Manifest.permission#ACCESS_COARSE_UPDATES} 245 */ 246 public List<NeighboringCellInfo> getNeighboringCellInfo() { 247 try { 248 return getITelephony().getNeighboringCellInfo(); 249 } catch (RemoteException ex) { 250 } 251 return null; 252 253 } 254 255 /** 256 * No phone module 257 * 258 */ 259 public static final int PHONE_TYPE_NONE = RILConstants.NO_PHONE; 260 261 /** 262 * GSM phone 263 */ 264 public static final int PHONE_TYPE_GSM = RILConstants.GSM_PHONE; 265 266 /** 267 * CDMA phone 268 * @hide 269 */ 270 public static final int PHONE_TYPE_CDMA = RILConstants.CDMA_PHONE; 271 272 /** 273 * Returns a constant indicating the device phone type. 274 * 275 * @see #PHONE_TYPE_NONE 276 * @see #PHONE_TYPE_GSM 277 * @see #PHONE_TYPE_CDMA 278 */ 279 public int getPhoneType() { 280 try{ 281 ITelephony telephony = getITelephony(); 282 if (telephony != null) { 283 if(telephony.getActivePhoneType() == RILConstants.CDMA_PHONE) { 284 return PHONE_TYPE_CDMA; 285 } else { 286 return PHONE_TYPE_GSM; 287 } 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 } 297 } 298 299 300 private int getPhoneTypeFromProperty() { 301 int type = 302 SystemProperties.getInt(TelephonyProperties.CURRENT_ACTIVE_PHONE, 303 getPhoneTypeFromNetworkType()); 304 return type; 305 } 306 307 private int getPhoneTypeFromNetworkType() { 308 // When the system property CURRENT_ACTIVE_PHONE, has not been set, 309 // use the system property for default network type. 310 // This is a fail safe, and can only happen at first boot. 311 int mode = SystemProperties.getInt("ro.telephony.default_network", -1); 312 if (mode == -1) 313 return PHONE_TYPE_NONE; 314 return PhoneFactory.getPhoneType(mode); 315 } 316 // 317 // 318 // Current Network 319 // 320 // 321 322 /** 323 * Returns the alphabetic name of current registered operator. 324 * <p> 325 * Availability: Only when user is registered to a network. Result may be 326 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 327 * on a CDMA network). 328 */ 329 public String getNetworkOperatorName() { 330 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA); 331 } 332 333 /** 334 * Returns the numeric name (MCC+MNC) 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 getNetworkOperator() { 341 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC); 342 } 343 344 /** 345 * Returns true if the device is considered roaming on the current 346 * network, for GSM purposes. 347 * <p> 348 * Availability: Only when user registered to a network. 349 */ 350 public boolean isNetworkRoaming() { 351 return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING)); 352 } 353 354 /** 355 * Returns the ISO country code equivilent of the current registered 356 * operator's MCC (Mobile Country Code). 357 * <p> 358 * Availability: Only when user is registered to a network. Result may be 359 * unreliable on CDMA networks (use {@link #getPhoneType()} to determine if 360 * on a CDMA network). 361 */ 362 public String getNetworkCountryIso() { 363 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY); 364 } 365 366 /** Network type is unknown */ 367 public static final int NETWORK_TYPE_UNKNOWN = 0; 368 /** Current network is GPRS */ 369 public static final int NETWORK_TYPE_GPRS = 1; 370 /** Current network is EDGE */ 371 public static final int NETWORK_TYPE_EDGE = 2; 372 /** Current network is UMTS */ 373 public static final int NETWORK_TYPE_UMTS = 3; 374 /** Current network is CDMA: Either IS95A or IS95B*/ 375 /** @hide */ 376 public static final int NETWORK_TYPE_CDMA = 4; 377 /** Current network is EVDO revision 0 or revision A*/ 378 /** @hide */ 379 public static final int NETWORK_TYPE_EVDO_0 = 5; 380 /** @hide */ 381 public static final int NETWORK_TYPE_EVDO_A = 6; 382 /** Current network is 1xRTT*/ 383 /** @hide */ 384 public static final int NETWORK_TYPE_1xRTT = 7; 385 386 /** 387 * Returns a constant indicating the radio technology (network type) 388 * currently in use on the device. 389 * @return the network type 390 * 391 * @see #NETWORK_TYPE_UNKNOWN 392 * @see #NETWORK_TYPE_GPRS 393 * @see #NETWORK_TYPE_EDGE 394 * @see #NETWORK_TYPE_UMTS 395 * @see #NETWORK_TYPE_CDMA 396 * @see #NETWORK_TYPE_EVDO_0 397 * @see #NETWORK_TYPE_EVDO_A 398 * @see #NETWORK_TYPE_1xRTT 399 */ 400 public int getNetworkType() { 401 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_DATA_NETWORK_TYPE); 402 if ("GPRS".equals(prop)) { 403 return NETWORK_TYPE_GPRS; 404 } 405 else if ("EDGE".equals(prop)) { 406 return NETWORK_TYPE_EDGE; 407 } 408 else if ("UMTS".equals(prop)) { 409 return NETWORK_TYPE_UMTS; 410 } 411 else if ("CDMA".equals(prop)) { 412 return NETWORK_TYPE_CDMA; 413 } 414 else if ("CDMA - EvDo rev. 0".equals(prop)) { 415 return NETWORK_TYPE_EVDO_0; 416 } 417 else if ("CDMA - EvDo rev. A".equals(prop)) { 418 return NETWORK_TYPE_EVDO_A; 419 } 420 else if ("CDMA - 1xRTT".equals(prop)) { 421 return NETWORK_TYPE_1xRTT; 422 } 423 else { 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_CDMA: 444 return "CDMA"; 445 case NETWORK_TYPE_EVDO_0: 446 return "CDMA - EvDo rev. 0"; 447 case NETWORK_TYPE_EVDO_A: 448 return "CDMA - EvDo rev. A"; 449 case NETWORK_TYPE_1xRTT: 450 return "CDMA - 1xRTT"; 451 default: 452 return "UNKNOWN"; 453 } 454 } 455 456 // 457 // 458 // SIM Card 459 // 460 // 461 462 /** SIM card state: Unknown. Signifies that the SIM is in transition 463 * between states. For example, when the user inputs the SIM pin 464 * under PIN_REQUIRED state, a query for sim status returns 465 * this state before turning to SIM_STATE_READY. */ 466 public static final int SIM_STATE_UNKNOWN = 0; 467 /** SIM card state: no SIM card is available in the device */ 468 public static final int SIM_STATE_ABSENT = 1; 469 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 470 public static final int SIM_STATE_PIN_REQUIRED = 2; 471 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 472 public static final int SIM_STATE_PUK_REQUIRED = 3; 473 /** SIM card state: Locked: requries a network PIN to unlock */ 474 public static final int SIM_STATE_NETWORK_LOCKED = 4; 475 /** SIM card state: Ready */ 476 public static final int SIM_STATE_READY = 5; 477 478 /** 479 * Returns a constant indicating the state of the 480 * device SIM card. 481 * 482 * @see #SIM_STATE_UNKNOWN 483 * @see #SIM_STATE_ABSENT 484 * @see #SIM_STATE_PIN_REQUIRED 485 * @see #SIM_STATE_PUK_REQUIRED 486 * @see #SIM_STATE_NETWORK_LOCKED 487 * @see #SIM_STATE_READY 488 */ 489 public int getSimState() { 490 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 491 if ("ABSENT".equals(prop)) { 492 return SIM_STATE_ABSENT; 493 } 494 else if ("PIN_REQUIRED".equals(prop)) { 495 return SIM_STATE_PIN_REQUIRED; 496 } 497 else if ("PUK_REQUIRED".equals(prop)) { 498 return SIM_STATE_PUK_REQUIRED; 499 } 500 else if ("NETWORK_LOCKED".equals(prop)) { 501 return SIM_STATE_NETWORK_LOCKED; 502 } 503 else if ("READY".equals(prop)) { 504 return SIM_STATE_READY; 505 } 506 else { 507 return SIM_STATE_UNKNOWN; 508 } 509 } 510 511 /** 512 * Returns the MCC+MNC (mobile country code + mobile network code) of the 513 * provider of the SIM. 5 or 6 decimal digits. 514 * <p> 515 * Availability: SIM state must be {@link #SIM_STATE_READY} 516 * 517 * @see #getSimState 518 */ 519 public String getSimOperator() { 520 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 521 } 522 523 /** 524 * Returns the Service Provider Name (SPN). 525 * <p> 526 * Availability: SIM state must be {@link #SIM_STATE_READY} 527 * 528 * @see #getSimState 529 */ 530 public String getSimOperatorName() { 531 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 532 } 533 534 /** 535 * Returns the ISO country code equivalent for the SIM provider's country code. 536 */ 537 public String getSimCountryIso() { 538 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 539 } 540 541 /** 542 * Returns the serial number of the SIM, if applicable. 543 * <p> 544 * Requires Permission: 545 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 546 */ 547 public String getSimSerialNumber() { 548 try { 549 return getSubscriberInfo().getIccSerialNumber(); 550 } catch (RemoteException ex) { 551 } 552 return null; 553 } 554 555 // 556 // 557 // Subscriber Info 558 // 559 // 560 561 /** 562 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 563 * <p> 564 * Requires Permission: 565 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 566 */ 567 public String getSubscriberId() { 568 try { 569 return getSubscriberInfo().getSubscriberId(); 570 } catch (RemoteException ex) { 571 } 572 return null; 573 } 574 575 /** 576 * Returns the phone number string for line 1, for example, the MSISDN 577 * for a GSM phone. 578 * <p> 579 * Requires Permission: 580 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 581 */ 582 public String getLine1Number() { 583 try { 584 return getSubscriberInfo().getLine1Number(); 585 } catch (RemoteException ex) { 586 } 587 return null; 588 } 589 590 /** 591 * Returns the alphabetic identifier associated with the line 1 number. 592 * <p> 593 * Requires Permission: 594 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 595 * @hide 596 * nobody seems to call this. 597 */ 598 public String getLine1AlphaTag() { 599 try { 600 return getSubscriberInfo().getLine1AlphaTag(); 601 } catch (RemoteException ex) { 602 } 603 return null; 604 } 605 606 /** 607 * Returns the voice mail number. 608 * <p> 609 * Requires Permission: 610 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 611 */ 612 public String getVoiceMailNumber() { 613 try { 614 return getSubscriberInfo().getVoiceMailNumber(); 615 } catch (RemoteException ex) { 616 } 617 return null; 618 } 619 620 /** 621 * Returns the voice mail count. 622 * <p> 623 * Requires Permission: 624 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 625 * @hide 626 */ 627 public int getVoiceMessageCount() { 628 try { 629 return getITelephony().getVoiceMessageCount(); 630 } catch (RemoteException ex) { 631 } 632 return 0; 633 } 634 635 /** 636 * Retrieves the alphabetic identifier associated with the voice 637 * mail number. 638 * <p> 639 * Requires Permission: 640 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 641 */ 642 public String getVoiceMailAlphaTag() { 643 try { 644 return getSubscriberInfo().getVoiceMailAlphaTag(); 645 } catch (RemoteException ex) { 646 } 647 return null; 648 } 649 650 private IPhoneSubInfo getSubscriberInfo() { 651 // get it each time because that process crashes a lot 652 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 653 } 654 655 656 /** Device call state: No activity. */ 657 public static final int CALL_STATE_IDLE = 0; 658 /** Device call state: Ringing. A new call arrived and is 659 * ringing or waiting. In the latter case, another call is 660 * already active. */ 661 public static final int CALL_STATE_RINGING = 1; 662 /** Device call state: Off-hook. At least one call exists 663 * that is dialing, active, or on hold, and no calls are ringing 664 * or waiting. */ 665 public static final int CALL_STATE_OFFHOOK = 2; 666 667 /** 668 * Returns a constant indicating the call state (cellular) on the device. 669 */ 670 public int getCallState() { 671 try { 672 return getITelephony().getCallState(); 673 } catch (RemoteException ex) { 674 // the phone process is restarting. 675 return CALL_STATE_IDLE; 676 } catch (NullPointerException ex) { 677 // the phone process is restarting. 678 return CALL_STATE_IDLE; 679 } 680 } 681 682 /** Data connection activity: No traffic. */ 683 public static final int DATA_ACTIVITY_NONE = 0x00000000; 684 /** Data connection activity: Currently receiving IP PPP traffic. */ 685 public static final int DATA_ACTIVITY_IN = 0x00000001; 686 /** Data connection activity: Currently sending IP PPP traffic. */ 687 public static final int DATA_ACTIVITY_OUT = 0x00000002; 688 /** Data connection activity: Currently both sending and receiving 689 * IP PPP traffic. */ 690 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 691 /** 692 * Data connection is active, but physical link is down 693 * @hide 694 */ 695 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 696 697 /** 698 * Returns a constant indicating the type of activity on a data connection 699 * (cellular). 700 * 701 * @see #DATA_ACTIVITY_NONE 702 * @see #DATA_ACTIVITY_IN 703 * @see #DATA_ACTIVITY_OUT 704 * @see #DATA_ACTIVITY_INOUT 705 * @see #DATA_ACTIVITY_DORMANT 706 */ 707 public int getDataActivity() { 708 try { 709 return getITelephony().getDataActivity(); 710 } catch (RemoteException ex) { 711 // the phone process is restarting. 712 return DATA_ACTIVITY_NONE; 713 } catch (NullPointerException ex) { 714 // the phone process is restarting. 715 return DATA_ACTIVITY_NONE; 716 } 717 } 718 719 /** Data connection state: Disconnected. IP traffic not available. */ 720 public static final int DATA_DISCONNECTED = 0; 721 /** Data connection state: Currently setting up a data connection. */ 722 public static final int DATA_CONNECTING = 1; 723 /** Data connection state: Connected. IP traffic should be available. */ 724 public static final int DATA_CONNECTED = 2; 725 /** Data connection state: Suspended. The connection is up, but IP 726 * traffic is temporarily unavailable. For example, in a 2G network, 727 * data activity may be suspended when a voice call arrives. */ 728 public static final int DATA_SUSPENDED = 3; 729 730 /** 731 * Returns a constant indicating the current data connection state 732 * (cellular). 733 * 734 * @see #DATA_DISCONNECTED 735 * @see #DATA_CONNECTING 736 * @see #DATA_CONNECTED 737 * @see #DATA_SUSPENDED 738 */ 739 public int getDataState() { 740 try { 741 return getITelephony().getDataState(); 742 } catch (RemoteException ex) { 743 // the phone process is restarting. 744 return DATA_DISCONNECTED; 745 } 746 } 747 748 private ITelephony getITelephony() { 749 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 750 } 751 752 // 753 // 754 // PhoneStateListener 755 // 756 // 757 758 /** 759 * Registers a listener object to receive notification of changes 760 * in specified telephony states. 761 * <p> 762 * To register a listener, pass a {@link PhoneStateListener} 763 * and specify at least one telephony state of interest in 764 * the events argument. 765 * 766 * At registration, and when a specified telephony state 767 * changes, the telephony manager invokes the appropriate 768 * callback method on the listener object and passes the 769 * current (udpated) values. 770 * <p> 771 * To unregister a listener, pass the listener object and set the 772 * events argument to 773 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 774 * 775 * @param listener The {@link PhoneStateListener} object to register 776 * (or unregister) 777 * @param events The telephony state(s) of interest to the listener, 778 * as a bitwise-OR combination of {@link PhoneStateListener} 779 * LISTEN_ flags. 780 */ 781 public void listen(PhoneStateListener listener, int events) { 782 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 783 try { 784 Boolean notifyNow = (getITelephony() != null); 785 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 786 } catch (RemoteException ex) { 787 // system process dead 788 } 789 } 790 791 /** 792 * Returns the CDMA ERI icon index to display 793 * 794 * @hide 795 */ 796 public int getCdmaEriIconIndex() { 797 try { 798 return getITelephony().getCdmaEriIconIndex(); 799 } catch (RemoteException ex) { 800 // the phone process is restarting. 801 return -1; 802 } 803 } 804 805 /** 806 * Returns the CDMA ERI icon mode, 807 * 0 - ON 808 * 1 - FLASHING 809 * 810 * @hide 811 */ 812 public int getCdmaEriIconMode() { 813 try { 814 return getITelephony().getCdmaEriIconMode(); 815 } catch (RemoteException ex) { 816 // the phone process is restarting. 817 return -1; 818 } 819 } 820 821 /** 822 * Returns the CDMA ERI text, 823 * 824 * @hide 825 */ 826 public String getCdmaEriText() { 827 try { 828 return getITelephony().getCdmaEriText(); 829 } catch (RemoteException ex) { 830 // the phone process is restarting. 831 return null; 832 } 833 } 834} 835