TelephonyManager.java revision e40f66ffc11cfc7e1bbe3e4c2ae1cf6dbc24cc17
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 /** Current network is HSDPA */ 386 /** @hide */ 387 public static final int NETWORK_TYPE_HSDPA = 8; 388 /** Current network is HSUPA */ 389 /** @hide */ 390 public static final int NETWORK_TYPE_HSUPA = 9; 391 /** Current network is HSPA */ 392 /** @hide */ 393 public static final int NETWORK_TYPE_HSPA = 10; 394 395 /** 396 * Returns a constant indicating the radio technology (network type) 397 * currently in use on the device. 398 * @return the network type 399 * 400 * @see #NETWORK_TYPE_UNKNOWN 401 * @see #NETWORK_TYPE_GPRS 402 * @see #NETWORK_TYPE_EDGE 403 * @see #NETWORK_TYPE_UMTS 404 * @see #NETWORK_TYPE_HSDPA 405 * @see #NETWORK_TYPE_HSUPA 406 * @see #NETWORK_TYPE_HSPA 407 * @see #NETWORK_TYPE_CDMA 408 * @see #NETWORK_TYPE_EVDO_0 409 * @see #NETWORK_TYPE_EVDO_A 410 * @see #NETWORK_TYPE_1xRTT 411 */ 412 public int getNetworkType() { 413 try{ 414 ITelephony telephony = getITelephony(); 415 if (telephony != null) { 416 return telephony.getNetworkType(); 417 } else { 418 // This can happen when the ITelephony interface is not up yet. 419 return NETWORK_TYPE_UNKNOWN; 420 } 421 } catch(RemoteException ex){ 422 // This shouldn't happen in the normal case 423 return NETWORK_TYPE_UNKNOWN; 424 } 425 } 426 427 /** 428 * Returns a string representation of the radio technology (network type) 429 * currently in use on the device. 430 * @return the name of the radio technology 431 * 432 * @hide pending API council review 433 */ 434 public String getNetworkTypeName() { 435 switch (getNetworkType()) { 436 case NETWORK_TYPE_GPRS: 437 return "GPRS"; 438 case NETWORK_TYPE_EDGE: 439 return "EDGE"; 440 case NETWORK_TYPE_UMTS: 441 return "UMTS"; 442 case NETWORK_TYPE_HSDPA: 443 return "HSDPA"; 444 case NETWORK_TYPE_HSUPA: 445 return "HSUPA"; 446 case NETWORK_TYPE_HSPA: 447 return "HSPA"; 448 case NETWORK_TYPE_CDMA: 449 return "CDMA"; 450 case NETWORK_TYPE_EVDO_0: 451 return "CDMA - EvDo rev. 0"; 452 case NETWORK_TYPE_EVDO_A: 453 return "CDMA - EvDo rev. A"; 454 case NETWORK_TYPE_1xRTT: 455 return "CDMA - 1xRTT"; 456 default: 457 return "UNKNOWN"; 458 } 459 } 460 461 // 462 // 463 // SIM Card 464 // 465 // 466 467 /** SIM card state: Unknown. Signifies that the SIM is in transition 468 * between states. For example, when the user inputs the SIM pin 469 * under PIN_REQUIRED state, a query for sim status returns 470 * this state before turning to SIM_STATE_READY. */ 471 public static final int SIM_STATE_UNKNOWN = 0; 472 /** SIM card state: no SIM card is available in the device */ 473 public static final int SIM_STATE_ABSENT = 1; 474 /** SIM card state: Locked: requires the user's SIM PIN to unlock */ 475 public static final int SIM_STATE_PIN_REQUIRED = 2; 476 /** SIM card state: Locked: requires the user's SIM PUK to unlock */ 477 public static final int SIM_STATE_PUK_REQUIRED = 3; 478 /** SIM card state: Locked: requries a network PIN to unlock */ 479 public static final int SIM_STATE_NETWORK_LOCKED = 4; 480 /** SIM card state: Ready */ 481 public static final int SIM_STATE_READY = 5; 482 483 /** 484 * @return true if a ICC card is present 485 */ 486 public boolean hasIccCard() { 487 try { 488 return getITelephony().hasIccCard(); 489 } catch (RemoteException ex) { 490 // Assume no ICC card if remote exception which shouldn't happen 491 return false; 492 } 493 } 494 495 /** 496 * Returns a constant indicating the state of the 497 * device SIM card. 498 * 499 * @see #SIM_STATE_UNKNOWN 500 * @see #SIM_STATE_ABSENT 501 * @see #SIM_STATE_PIN_REQUIRED 502 * @see #SIM_STATE_PUK_REQUIRED 503 * @see #SIM_STATE_NETWORK_LOCKED 504 * @see #SIM_STATE_READY 505 */ 506 public int getSimState() { 507 String prop = SystemProperties.get(TelephonyProperties.PROPERTY_SIM_STATE); 508 if ("ABSENT".equals(prop)) { 509 return SIM_STATE_ABSENT; 510 } 511 else if ("PIN_REQUIRED".equals(prop)) { 512 return SIM_STATE_PIN_REQUIRED; 513 } 514 else if ("PUK_REQUIRED".equals(prop)) { 515 return SIM_STATE_PUK_REQUIRED; 516 } 517 else if ("NETWORK_LOCKED".equals(prop)) { 518 return SIM_STATE_NETWORK_LOCKED; 519 } 520 else if ("READY".equals(prop)) { 521 return SIM_STATE_READY; 522 } 523 else { 524 return SIM_STATE_UNKNOWN; 525 } 526 } 527 528 /** 529 * Returns the MCC+MNC (mobile country code + mobile network code) of the 530 * provider of the SIM. 5 or 6 decimal digits. 531 * <p> 532 * Availability: SIM state must be {@link #SIM_STATE_READY} 533 * 534 * @see #getSimState 535 */ 536 public String getSimOperator() { 537 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_NUMERIC); 538 } 539 540 /** 541 * Returns the Service Provider Name (SPN). 542 * <p> 543 * Availability: SIM state must be {@link #SIM_STATE_READY} 544 * 545 * @see #getSimState 546 */ 547 public String getSimOperatorName() { 548 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ALPHA); 549 } 550 551 /** 552 * Returns the ISO country code equivalent for the SIM provider's country code. 553 */ 554 public String getSimCountryIso() { 555 return SystemProperties.get(TelephonyProperties.PROPERTY_ICC_OPERATOR_ISO_COUNTRY); 556 } 557 558 /** 559 * Returns the serial number of the SIM, if applicable. 560 * <p> 561 * Requires Permission: 562 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 563 */ 564 public String getSimSerialNumber() { 565 try { 566 return getSubscriberInfo().getIccSerialNumber(); 567 } catch (RemoteException ex) { 568 } 569 return null; 570 } 571 572 // 573 // 574 // Subscriber Info 575 // 576 // 577 578 /** 579 * Returns the unique subscriber ID, for example, the IMSI for a GSM phone. 580 * <p> 581 * Requires Permission: 582 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 583 */ 584 public String getSubscriberId() { 585 try { 586 return getSubscriberInfo().getSubscriberId(); 587 } catch (RemoteException ex) { 588 } 589 return null; 590 } 591 592 /** 593 * Returns the phone number string for line 1, for example, the MSISDN 594 * for a GSM phone. 595 * <p> 596 * Requires Permission: 597 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 598 */ 599 public String getLine1Number() { 600 try { 601 return getSubscriberInfo().getLine1Number(); 602 } catch (RemoteException ex) { 603 } 604 return null; 605 } 606 607 /** 608 * Returns the alphabetic identifier associated with the line 1 number. 609 * <p> 610 * Requires Permission: 611 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 612 * @hide 613 * nobody seems to call this. 614 */ 615 public String getLine1AlphaTag() { 616 try { 617 return getSubscriberInfo().getLine1AlphaTag(); 618 } catch (RemoteException ex) { 619 } 620 return null; 621 } 622 623 /** 624 * Returns the voice mail number. 625 * <p> 626 * Requires Permission: 627 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 628 */ 629 public String getVoiceMailNumber() { 630 try { 631 return getSubscriberInfo().getVoiceMailNumber(); 632 } catch (RemoteException ex) { 633 } 634 return null; 635 } 636 637 /** 638 * Returns the voice mail count. 639 * <p> 640 * Requires Permission: 641 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 642 * @hide 643 */ 644 public int getVoiceMessageCount() { 645 try { 646 return getITelephony().getVoiceMessageCount(); 647 } catch (RemoteException ex) { 648 } 649 return 0; 650 } 651 652 /** 653 * Retrieves the alphabetic identifier associated with the voice 654 * mail number. 655 * <p> 656 * Requires Permission: 657 * {@link android.Manifest.permission#READ_PHONE_STATE READ_PHONE_STATE} 658 */ 659 public String getVoiceMailAlphaTag() { 660 try { 661 return getSubscriberInfo().getVoiceMailAlphaTag(); 662 } catch (RemoteException ex) { 663 } 664 return null; 665 } 666 667 private IPhoneSubInfo getSubscriberInfo() { 668 // get it each time because that process crashes a lot 669 return IPhoneSubInfo.Stub.asInterface(ServiceManager.getService("iphonesubinfo")); 670 } 671 672 673 /** Device call state: No activity. */ 674 public static final int CALL_STATE_IDLE = 0; 675 /** Device call state: Ringing. A new call arrived and is 676 * ringing or waiting. In the latter case, another call is 677 * already active. */ 678 public static final int CALL_STATE_RINGING = 1; 679 /** Device call state: Off-hook. At least one call exists 680 * that is dialing, active, or on hold, and no calls are ringing 681 * or waiting. */ 682 public static final int CALL_STATE_OFFHOOK = 2; 683 684 /** 685 * Returns a constant indicating the call state (cellular) on the device. 686 */ 687 public int getCallState() { 688 try { 689 return getITelephony().getCallState(); 690 } catch (RemoteException ex) { 691 // the phone process is restarting. 692 return CALL_STATE_IDLE; 693 } catch (NullPointerException ex) { 694 // the phone process is restarting. 695 return CALL_STATE_IDLE; 696 } 697 } 698 699 /** Data connection activity: No traffic. */ 700 public static final int DATA_ACTIVITY_NONE = 0x00000000; 701 /** Data connection activity: Currently receiving IP PPP traffic. */ 702 public static final int DATA_ACTIVITY_IN = 0x00000001; 703 /** Data connection activity: Currently sending IP PPP traffic. */ 704 public static final int DATA_ACTIVITY_OUT = 0x00000002; 705 /** Data connection activity: Currently both sending and receiving 706 * IP PPP traffic. */ 707 public static final int DATA_ACTIVITY_INOUT = DATA_ACTIVITY_IN | DATA_ACTIVITY_OUT; 708 /** 709 * Data connection is active, but physical link is down 710 * @hide 711 */ 712 public static final int DATA_ACTIVITY_DORMANT = 0x00000004; 713 714 /** 715 * Returns a constant indicating the type of activity on a data connection 716 * (cellular). 717 * 718 * @see #DATA_ACTIVITY_NONE 719 * @see #DATA_ACTIVITY_IN 720 * @see #DATA_ACTIVITY_OUT 721 * @see #DATA_ACTIVITY_INOUT 722 * @see #DATA_ACTIVITY_DORMANT 723 */ 724 public int getDataActivity() { 725 try { 726 return getITelephony().getDataActivity(); 727 } catch (RemoteException ex) { 728 // the phone process is restarting. 729 return DATA_ACTIVITY_NONE; 730 } catch (NullPointerException ex) { 731 // the phone process is restarting. 732 return DATA_ACTIVITY_NONE; 733 } 734 } 735 736 /** Data connection state: Disconnected. IP traffic not available. */ 737 public static final int DATA_DISCONNECTED = 0; 738 /** Data connection state: Currently setting up a data connection. */ 739 public static final int DATA_CONNECTING = 1; 740 /** Data connection state: Connected. IP traffic should be available. */ 741 public static final int DATA_CONNECTED = 2; 742 /** Data connection state: Suspended. The connection is up, but IP 743 * traffic is temporarily unavailable. For example, in a 2G network, 744 * data activity may be suspended when a voice call arrives. */ 745 public static final int DATA_SUSPENDED = 3; 746 747 /** 748 * Returns a constant indicating the current data connection state 749 * (cellular). 750 * 751 * @see #DATA_DISCONNECTED 752 * @see #DATA_CONNECTING 753 * @see #DATA_CONNECTED 754 * @see #DATA_SUSPENDED 755 */ 756 public int getDataState() { 757 try { 758 return getITelephony().getDataState(); 759 } catch (RemoteException ex) { 760 // the phone process is restarting. 761 return DATA_DISCONNECTED; 762 } 763 } 764 765 private ITelephony getITelephony() { 766 return ITelephony.Stub.asInterface(ServiceManager.getService(Context.TELEPHONY_SERVICE)); 767 } 768 769 // 770 // 771 // PhoneStateListener 772 // 773 // 774 775 /** 776 * Registers a listener object to receive notification of changes 777 * in specified telephony states. 778 * <p> 779 * To register a listener, pass a {@link PhoneStateListener} 780 * and specify at least one telephony state of interest in 781 * the events argument. 782 * 783 * At registration, and when a specified telephony state 784 * changes, the telephony manager invokes the appropriate 785 * callback method on the listener object and passes the 786 * current (udpated) values. 787 * <p> 788 * To unregister a listener, pass the listener object and set the 789 * events argument to 790 * {@link PhoneStateListener#LISTEN_NONE LISTEN_NONE} (0). 791 * 792 * @param listener The {@link PhoneStateListener} object to register 793 * (or unregister) 794 * @param events The telephony state(s) of interest to the listener, 795 * as a bitwise-OR combination of {@link PhoneStateListener} 796 * LISTEN_ flags. 797 */ 798 public void listen(PhoneStateListener listener, int events) { 799 String pkgForDebug = mContext != null ? mContext.getPackageName() : "<unknown>"; 800 try { 801 Boolean notifyNow = (getITelephony() != null); 802 mRegistry.listen(pkgForDebug, listener.callback, events, notifyNow); 803 } catch (RemoteException ex) { 804 // system process dead 805 } 806 } 807 808 /** 809 * Returns the CDMA ERI icon index to display 810 * 811 * @hide 812 */ 813 public int getCdmaEriIconIndex() { 814 try { 815 return getITelephony().getCdmaEriIconIndex(); 816 } catch (RemoteException ex) { 817 // the phone process is restarting. 818 return -1; 819 } 820 } 821 822 /** 823 * Returns the CDMA ERI icon mode, 824 * 0 - ON 825 * 1 - FLASHING 826 * 827 * @hide 828 */ 829 public int getCdmaEriIconMode() { 830 try { 831 return getITelephony().getCdmaEriIconMode(); 832 } catch (RemoteException ex) { 833 // the phone process is restarting. 834 return -1; 835 } 836 } 837 838 /** 839 * Returns the CDMA ERI text, 840 * 841 * @hide 842 */ 843 public String getCdmaEriText() { 844 try { 845 return getITelephony().getCdmaEriText(); 846 } catch (RemoteException ex) { 847 // the phone process is restarting. 848 return null; 849 } 850 } 851} 852