TelephonyManager.java revision ce099c3226b33b43e0dd5d1f24347b14a2223ee1
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 = 0; 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 326 */ 327 public String getNetworkOperatorName() { 328 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ALPHA); 329 } 330 331 /** 332 * Returns the numeric name (MCC+MNC) of current registered operator. 333 * <p> 334 * Availability: Only when user is registered to a network 335 */ 336 public String getNetworkOperator() { 337 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_NUMERIC); 338 } 339 340 /** 341 * Returns true if the device is considered roaming on the current 342 * network, for GSM purposes. 343 * <p> 344 * Availability: Only when user registered to a network 345 */ 346 public boolean isNetworkRoaming() { 347 return "true".equals(SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISROAMING)); 348 } 349 350 /** 351 * Returns the ISO country code equivilent of the current registered 352 * operator's MCC (Mobile Country Code). 353 * <p> 354 * Availability: Only when user is registered to a network 355 */ 356 public String getNetworkCountryIso() { 357 return SystemProperties.get(TelephonyProperties.PROPERTY_OPERATOR_ISO_COUNTRY); 358 } 359 360 /** Network type is unknown */ 361 public static final int NETWORK_TYPE_UNKNOWN = 0; 362 /** Current network is GPRS */ 363 public static final int NETWORK_TYPE_GPRS = 1; 364 /** Current network is EDGE */ 365 public static final int NETWORK_TYPE_EDGE = 2; 366 /** Current network is UMTS */ 367 public static final int NETWORK_TYPE_UMTS = 3; 368 /** Current network is CDMA: Either IS95A or IS95B*/ 369 /** @hide */ 370 public static final int NETWORK_TYPE_CDMA = 4; 371 /** Current network is EVDO revision 0 or revision A*/ 372 /** @hide */ 373 public static final int NETWORK_TYPE_EVDO_0 = 5; 374 /** @hide */ 375 public static final int NETWORK_TYPE_EVDO_A = 6; 376 /** Current network is 1xRTT*/ 377 /** @hide */ 378 public static final int NETWORK_TYPE_1xRTT = 7; 379 380 /** 381 * Returns a constant indicating the radio technology (network type) 382 * currently in use on the device. 383 * @return the network type 384 * 385 * @see #NETWORK_TYPE_UNKNOWN 386 * @see #NETWORK_TYPE_GPRS 387 * @see #NETWORK_TYPE_EDGE 388 * @see #NETWORK_TYPE_UMTS 389 * @see #NETWORK_TYPE_CDMA 390 * @see #NETWORK_TYPE_EVDO_0 391 * @see #NETWORK_TYPE_EVDO_A 392 * @see #NETWORK_TYPE_1xRTT 393 */ 394 public int getNetworkType() { 395 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_DATA_NETWORK_TYPE); 396 if ("GPRS".equals(prop)) { 397 return NETWORK_TYPE_GPRS; 398 } 399 else if ("EDGE".equals(prop)) { 400 return NETWORK_TYPE_EDGE; 401 } 402 else if ("UMTS".equals(prop)) { 403 return NETWORK_TYPE_UMTS; 404 } 405 else if ("CDMA".equals(prop)) { 406 return NETWORK_TYPE_CDMA; 407 } 408 else if ("CDMA - EvDo rev. 0".equals(prop)) { 409 return NETWORK_TYPE_EVDO_0; 410 } 411 else if ("CDMA - EvDo rev. A".equals(prop)) { 412 return NETWORK_TYPE_EVDO_A; 413 } 414 else if ("CDMA - 1xRTT".equals(prop)) { 415 return NETWORK_TYPE_1xRTT; 416 } 417 else { 418 return NETWORK_TYPE_UNKNOWN; 419 } 420 } 421 422 /** 423 * Returns a string representation of the radio technology (network type) 424 * currently in use on the device. 425 * @return the name of the radio technology 426 * 427 * @hide pending API council review 428 */ 429 public String getNetworkTypeName() { 430 switch (getNetworkType()) { 431 case NETWORK_TYPE_GPRS: 432 return "GPRS"; 433 case NETWORK_TYPE_EDGE: 434 return "EDGE"; 435 case NETWORK_TYPE_UMTS: 436 return "UMTS"; 437 case NETWORK_TYPE_CDMA: 438 return "CDMA"; 439 case NETWORK_TYPE_EVDO_0: 440 return "CDMA - EvDo rev. 0"; 441 case NETWORK_TYPE_EVDO_A: 442 return "CDMA - EvDo rev. A"; 443 case NETWORK_TYPE_1xRTT: 444 return "CDMA - 1xRTT"; 445 default: 446 return "UNKNOWN"; 447 } 448 } 449 450 // 451 // 452 // SIM Card 453 // 454 // 455 456 /** SIM card state: Unknown. Signifies that the SIM is in transition 457 * between states. For example, when the user inputs the SIM pin 458 * under PIN_REQUIRED state, a query for sim status returns 459 * this state before turning to SIM_STATE_READY. */ 460 public static final int SIM_STATE_UNKNOWN = 0; 461 /** SIM card state: no SIM card is available in the device */ 462 public static final int SIM_STATE_ABSENT = 1; 463 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 464 public static final int SIM_STATE_PIN_REQUIRED = 2; 465 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 466 public static final int SIM_STATE_PUK_REQUIRED = 3; 467 /** SIM card state: Locked: requries a network PIN to unlock */ 468 public static final int SIM_STATE_NETWORK_LOCKED = 4; 469 /** SIM card state: Ready */ 470 public static final int SIM_STATE_READY = 5; 471 472 /** 473 * Returns a constant indicating the state of the 474 * device SIM card. 475 * 476 * @see #SIM_STATE_UNKNOWN 477 * @see #SIM_STATE_ABSENT 478 * @see #SIM_STATE_PIN_REQUIRED 479 * @see #SIM_STATE_PUK_REQUIRED 480 * @see #SIM_STATE_NETWORK_LOCKED 481 * @see #SIM_STATE_READY 482 */ 483 public int getSimState() { 484 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 485 if ("ABSENT".equals(prop)) { 486 return SIM_STATE_ABSENT; 487 } 488 else if ("PIN_REQUIRED".equals(prop)) { 489 return SIM_STATE_PIN_REQUIRED; 490 } 491 else if ("PUK_REQUIRED".equals(prop)) { 492 return SIM_STATE_PUK_REQUIRED; 493 } 494 else if ("NETWORK_LOCKED".equals(prop)) { 495 return SIM_STATE_NETWORK_LOCKED; 496 } 497 else if ("READY".equals(prop)) { 498 return SIM_STATE_READY; 499 } 500 else { 501 return SIM_STATE_UNKNOWN; 502 } 503 } 504 505 /** 506 * Returns the MCC+MNC (mobile country code + mobile network code) of the 507 * provider of the SIM. 5 or 6 decimal digits. 508 * <p> 509 * Availability: SIM state must be {@link #SIM_STATE_READY} 510 * 511 * @see #getSimState 512 */ 513 public String getSimOperator() { 514 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 515 } 516 517 /** 518 * Returns the Service Provider Name (SPN). 519 * <p> 520 * Availability: SIM state must be {@link #SIM_STATE_READY} 521 * 522 * @see #getSimState 523 */ 524 public String getSimOperatorName() { 525 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 526 } 527 528 /** 529 * Returns the ISO country code equivalent for the SIM provider's country code. 530 */ 531 public String getSimCountryIso() { 532 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 533 } 534 535 /** 536 * Returns the serial number of the SIM, if applicable. 537 * <p> 538 * Requires Permission: 539 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 540 */ 541 public String getSimSerialNumber() { 542 try { 543 return getSubscriberInfo().getIccSerialNumber(); 544 } catch (RemoteException ex) { 545 } 546 return null; 547 } 548 549 // 550 // 551 // Subscriber Info 552 // 553 // 554 555 /** 556 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 557 * <p> 558 * Requires Permission: 559 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 560 */ 561 public String getSubscriberId() { 562 try { 563 return getSubscriberInfo().getSubscriberId(); 564 } catch (RemoteException ex) { 565 } 566 return null; 567 } 568 569 /** 570 * Returns the phone number string for line 1, for example, the MSISDN 571 * for a GSM phone. 572 * <p> 573 * Requires Permission: 574 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 575 */ 576 public String getLine1Number() { 577 try { 578 return getSubscriberInfo().getLine1Number(); 579 } catch (RemoteException ex) { 580 } 581 return null; 582 } 583 584 /** 585 * Returns the alphabetic identifier associated with the line 1 number. 586 * <p> 587 * Requires Permission: 588 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 589 * @hide 590 * nobody seems to call this. 591 */ 592 public String getLine1AlphaTag() { 593 try { 594 return getSubscriberInfo().getLine1AlphaTag(); 595 } catch (RemoteException ex) { 596 } 597 return null; 598 } 599 600 /** 601 * Returns the voice mail number. 602 * <p> 603 * Requires Permission: 604 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 605 */ 606 public String getVoiceMailNumber() { 607 try { 608 return getSubscriberInfo().getVoiceMailNumber(); 609 } catch (RemoteException ex) { 610 } 611 return null; 612 } 613 614 /** 615 * Returns the voice mail count. 616 * <p> 617 * Requires Permission: 618 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 619 * @hide 620 */ 621 public int getVoiceMessageCount() { 622 try { 623 return getITelephony().getVoiceMessageCount(); 624 } catch (RemoteException ex) { 625 } 626 return 0; 627 } 628 629 /** 630 * Retrieves the alphabetic identifier associated with the voice 631 * mail number. 632 * <p> 633 * Requires Permission: 634 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 635 */ 636 public String getVoiceMailAlphaTag() { 637 try { 638 return getSubscriberInfo().getVoiceMailAlphaTag(); 639 } catch (RemoteException ex) { 640 } 641 return null; 642 } 643 644 private IPhoneSubInfo getSubscriberInfo() { 645 // get it each time because that process crashes a lot 646 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 647 } 648 649 650 /** Device call state: No activity. */ 651 public static final int CALL_STATE_IDLE = 0; 652 /** Device call state: Ringing. A new call arrived and is 653 * ringing or waiting. In the latter case, another call is 654 * already active. */ 655 public static final int CALL_STATE_RINGING = 1; 656 /** Device call state: Off-hook. At least one call exists 657 * that is dialing, active, or on hold, and no calls are ringing 658 * or waiting. */ 659 public static final int CALL_STATE_OFFHOOK = 2; 660 661 /** 662 * Returns a constant indicating the call state (cellular) on the device. 663 */ 664 public int getCallState() { 665 try { 666 return getITelephony().getCallState(); 667 } catch (RemoteException ex) { 668 // the phone process is restarting. 669 return CALL_STATE_IDLE; 670 } 671 } 672 673 /** Data connection activity: No traffic. */ 674 public static final int DATA_ACTIVITY_NONE = 0x00000000; 675 /** Data connection activity: Currently receiving IP PPP traffic. */ 676 public static final int DATA_ACTIVITY_IN = 0x00000001; 677 /** Data connection activity: Currently sending IP PPP traffic. */ 678 public static final int DATA_ACTIVITY_OUT = 0x00000002; 679 /** Data connection activity: Currently both sending and receiving 680 * IP PPP traffic. */ 681 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 682 /** 683 * Data connection is active, but physical link is down 684 * @hide 685 */ 686 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 687 688 /** 689 * Returns a constant indicating the type of activity on a data connection 690 * (cellular). 691 * 692 * @see #DATA_ACTIVITY_NONE 693 * @see #DATA_ACTIVITY_IN 694 * @see #DATA_ACTIVITY_OUT 695 * @see #DATA_ACTIVITY_INOUT 696 * @see #DATA_ACTIVITY_DORMANT 697 */ 698 public int getDataActivity() { 699 try { 700 return getITelephony().getDataActivity(); 701 } catch (RemoteException ex) { 702 // the phone process is restarting. 703 return DATA_ACTIVITY_NONE; 704 } 705 } 706 707 /** Data connection state: Disconnected. IP traffic not available. */ 708 public static final int DATA_DISCONNECTED = 0; 709 /** Data connection state: Currently setting up a data connection. */ 710 public static final int DATA_CONNECTING = 1; 711 /** Data connection state: Connected. IP traffic should be available. */ 712 public static final int DATA_CONNECTED = 2; 713 /** Data connection state: Suspended. The connection is up, but IP 714 * traffic is temporarily unavailable. For example, in a 2G network, 715 * data activity may be suspended when a voice call arrives. */ 716 public static final int DATA_SUSPENDED = 3; 717 718 /** 719 * Returns a constant indicating the current data connection state 720 * (cellular). 721 * 722 * @see #DATA_DISCONNECTED 723 * @see #DATA_CONNECTING 724 * @see #DATA_CONNECTED 725 * @see #DATA_SUSPENDED 726 */ 727 public int getDataState() { 728 try { 729 return getITelephony().getDataState(); 730 } catch (RemoteException ex) { 731 // the phone process is restarting. 732 return DATA_DISCONNECTED; 733 } 734 } 735 736 private ITelephony getITelephony() { 737 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 738 } 739 740 // 741 // 742 // PhoneStateListener 743 // 744 // 745 746 /** 747 * Registers a listener object to receive notification of changes 748 * in specified telephony states. 749 * <p> 750 * To register a listener, pass a {@link PhoneStateListener} 751 * and specify at least one telephony state of interest in 752 * the events argument. 753 * 754 * At registration, and when a specified telephony state 755 * changes, the telephony manager invokes the appropriate 756 * callback method on the listener object and passes the 757 * current (udpated) values. 758 * <p> 759 * To unregister a listener, pass the listener object and set the 760 * events argument to 761 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 762 * 763 * @param listener The {@link PhoneStateListener} object to register 764 * (or unregister) 765 * @param events The telephony state(s) of interest to the listener, 766 * as a bitwise-OR combination of {@link PhoneStateListener} 767 * LISTEN_ flags. 768 */ 769 public void listen(PhoneStateListener listener, int events) { 770 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 771 try { 772 Boolean notifyNow = (getITelephony() != null); 773 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 774 } catch (RemoteException ex) { 775 // system process dead 776 } 777 } 778 779 /** 780 * Returns the CDMA ERI icon index to display 781 * 782 * @hide 783 */ 784 public int getCdmaEriIconIndex() { 785 try { 786 return getITelephony().getCdmaEriIconIndex(); 787 } catch (RemoteException ex) { 788 // the phone process is restarting. 789 return -1; 790 } 791 } 792 793 /** 794 * Returns the CDMA ERI icon mode, 795 * 0 - ON 796 * 1 - FLASHING 797 * 798 * @hide 799 */ 800 public int getCdmaEriIconMode() { 801 try { 802 return getITelephony().getCdmaEriIconMode(); 803 } catch (RemoteException ex) { 804 // the phone process is restarting. 805 return -1; 806 } 807 } 808 809 /** 810 * Returns the CDMA ERI text, 811 * 812 * @hide 813 */ 814 public String getCdmaEriText() { 815 try { 816 return getITelephony().getCdmaEriText(); 817 } catch (RemoteException ex) { 818 // the phone process is restarting. 819 return null; 820 } 821 } 822} 823