1 /* 2 * Copyright (C) 2009-2016 The Android Open Source Project 3 * Copyright (C) 2015 Samsung LSI 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 package android.bluetooth; 19 20 import android.Manifest; 21 import android.annotation.IntDef; 22 import android.annotation.RequiresPermission; 23 import android.annotation.SdkConstant; 24 import android.annotation.SdkConstant.SdkConstantType; 25 import android.annotation.SystemApi; 26 import android.bluetooth.le.BluetoothLeAdvertiser; 27 import android.bluetooth.le.BluetoothLeScanner; 28 import android.bluetooth.le.ScanCallback; 29 import android.bluetooth.le.ScanFilter; 30 import android.bluetooth.le.ScanRecord; 31 import android.bluetooth.le.ScanResult; 32 import android.bluetooth.le.ScanSettings; 33 import android.content.Context; 34 import android.os.BatteryStats; 35 import android.os.Binder; 36 import android.os.IBinder; 37 import android.os.ParcelUuid; 38 import android.os.RemoteException; 39 import android.os.ResultReceiver; 40 import android.os.ServiceManager; 41 import android.os.SynchronousResultReceiver; 42 import android.os.SystemProperties; 43 import android.util.Log; 44 import android.util.Pair; 45 46 import java.io.IOException; 47 import java.lang.annotation.Retention; 48 import java.lang.annotation.RetentionPolicy; 49 import java.util.ArrayList; 50 import java.util.Arrays; 51 import java.util.Collections; 52 import java.util.HashMap; 53 import java.util.HashSet; 54 import java.util.List; 55 import java.util.Locale; 56 import java.util.Map; 57 import java.util.Set; 58 import java.util.UUID; 59 import java.util.concurrent.TimeoutException; 60 import java.util.concurrent.locks.ReentrantReadWriteLock; 61 62 /** 63 * Represents the local device Bluetooth adapter. The {@link BluetoothAdapter} 64 * lets you perform fundamental Bluetooth tasks, such as initiate 65 * device discovery, query a list of bonded (paired) devices, 66 * instantiate a {@link BluetoothDevice} using a known MAC address, and create 67 * a {@link BluetoothServerSocket} to listen for connection requests from other 68 * devices, and start a scan for Bluetooth LE devices. 69 * 70 * <p>To get a {@link BluetoothAdapter} representing the local Bluetooth 71 * adapter, when running on JELLY_BEAN_MR1 and below, call the 72 * static {@link #getDefaultAdapter} method; when running on JELLY_BEAN_MR2 and 73 * higher, call {@link BluetoothManager#getAdapter}. 74 * Fundamentally, this is your starting point for all 75 * Bluetooth actions. Once you have the local adapter, you can get a set of 76 * {@link BluetoothDevice} objects representing all paired devices with 77 * {@link #getBondedDevices()}; start device discovery with 78 * {@link #startDiscovery()}; or create a {@link BluetoothServerSocket} to 79 * listen for incoming connection requests with 80 * {@link #listenUsingRfcommWithServiceRecord(String,UUID)}; or start a scan for 81 * Bluetooth LE devices with {@link #startLeScan(LeScanCallback callback)}. 82 * 83 * <p>This class is thread safe. 84 * 85 * <p class="note"><strong>Note:</strong> 86 * Most methods require the {@link android.Manifest.permission#BLUETOOTH} 87 * permission and some also require the 88 * {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. 89 * 90 * <div class="special reference"> 91 * <h3>Developer Guides</h3> 92 * <p> 93 * For more information about using Bluetooth, read the <a href= 94 * "{@docRoot}guide/topics/connectivity/bluetooth.html">Bluetooth</a> developer 95 * guide. 96 * </p> 97 * </div> 98 * 99 * {@see BluetoothDevice} 100 * {@see BluetoothServerSocket} 101 */ 102 public final class BluetoothAdapter { 103 private static final String TAG = "BluetoothAdapter"; 104 private static final boolean DBG = true; 105 private static final boolean VDBG = false; 106 107 /** 108 * Default MAC address reported to a client that does not have the 109 * android.permission.LOCAL_MAC_ADDRESS permission. 110 * 111 * @hide 112 */ 113 public static final String DEFAULT_MAC_ADDRESS = "02:00:00:00:00:00"; 114 115 /** 116 * Sentinel error value for this class. Guaranteed to not equal any other 117 * integer constant in this class. Provided as a convenience for functions 118 * that require a sentinel error value, for example: 119 * <p><code>Intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, 120 * BluetoothAdapter.ERROR)</code> 121 */ 122 public static final int ERROR = Integer.MIN_VALUE; 123 124 /** 125 * Broadcast Action: The state of the local Bluetooth adapter has been 126 * changed. 127 * <p>For example, Bluetooth has been turned on or off. 128 * <p>Always contains the extra fields {@link #EXTRA_STATE} and {@link 129 * #EXTRA_PREVIOUS_STATE} containing the new and old states 130 * respectively. 131 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive. 132 */ 133 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 134 public static final String ACTION_STATE_CHANGED = 135 "android.bluetooth.adapter.action.STATE_CHANGED"; 136 137 /** 138 * Used as an int extra field in {@link #ACTION_STATE_CHANGED} 139 * intents to request the current power state. Possible values are: 140 * {@link #STATE_OFF}, 141 * {@link #STATE_TURNING_ON}, 142 * {@link #STATE_ON}, 143 * {@link #STATE_TURNING_OFF}, 144 */ 145 public static final String EXTRA_STATE = 146 "android.bluetooth.adapter.extra.STATE"; 147 /** 148 * Used as an int extra field in {@link #ACTION_STATE_CHANGED} 149 * intents to request the previous power state. Possible values are: 150 * {@link #STATE_OFF}, 151 * {@link #STATE_TURNING_ON}, 152 * {@link #STATE_ON}, 153 * {@link #STATE_TURNING_OFF} 154 */ 155 public static final String EXTRA_PREVIOUS_STATE = 156 "android.bluetooth.adapter.extra.PREVIOUS_STATE"; 157 158 /** @hide */ 159 @IntDef({STATE_OFF, STATE_TURNING_ON, STATE_ON, STATE_TURNING_OFF, STATE_BLE_TURNING_ON, 160 STATE_BLE_ON, STATE_BLE_TURNING_OFF}) 161 @Retention(RetentionPolicy.SOURCE) 162 public @interface AdapterState {} 163 164 /** 165 * Indicates the local Bluetooth adapter is off. 166 */ 167 public static final int STATE_OFF = 10; 168 /** 169 * Indicates the local Bluetooth adapter is turning on. However local 170 * clients should wait for {@link #STATE_ON} before attempting to 171 * use the adapter. 172 */ 173 public static final int STATE_TURNING_ON = 11; 174 /** 175 * Indicates the local Bluetooth adapter is on, and ready for use. 176 */ 177 public static final int STATE_ON = 12; 178 /** 179 * Indicates the local Bluetooth adapter is turning off. Local clients 180 * should immediately attempt graceful disconnection of any remote links. 181 */ 182 public static final int STATE_TURNING_OFF = 13; 183 184 /** 185 * Indicates the local Bluetooth adapter is turning Bluetooth LE mode on. 186 * @hide 187 */ 188 public static final int STATE_BLE_TURNING_ON = 14; 189 190 /** 191 * Indicates the local Bluetooth adapter is in LE only mode. 192 * @hide 193 */ 194 public static final int STATE_BLE_ON = 15; 195 196 /** 197 * Indicates the local Bluetooth adapter is turning off LE only mode. 198 * @hide 199 */ 200 public static final int STATE_BLE_TURNING_OFF = 16; 201 202 /** 203 * Activity Action: Show a system activity that requests discoverable mode. 204 * This activity will also request the user to turn on Bluetooth if it 205 * is not currently enabled. 206 * <p>Discoverable mode is equivalent to {@link 207 * #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. It allows remote devices to see 208 * this Bluetooth adapter when they perform a discovery. 209 * <p>For privacy, Android is not discoverable by default. 210 * <p>The sender of this Intent can optionally use extra field {@link 211 * #EXTRA_DISCOVERABLE_DURATION} to request the duration of 212 * discoverability. Currently the default duration is 120 seconds, and 213 * maximum duration is capped at 300 seconds for each request. 214 * <p>Notification of the result of this activity is posted using the 215 * {@link android.app.Activity#onActivityResult} callback. The 216 * <code>resultCode</code> 217 * will be the duration (in seconds) of discoverability or 218 * {@link android.app.Activity#RESULT_CANCELED} if the user rejected 219 * discoverability or an error has occurred. 220 * <p>Applications can also listen for {@link #ACTION_SCAN_MODE_CHANGED} 221 * for global notification whenever the scan mode changes. For example, an 222 * application can be notified when the device has ended discoverability. 223 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 224 */ 225 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 226 public static final String ACTION_REQUEST_DISCOVERABLE = 227 "android.bluetooth.adapter.action.REQUEST_DISCOVERABLE"; 228 229 /** 230 * Used as an optional int extra field in {@link 231 * #ACTION_REQUEST_DISCOVERABLE} intents to request a specific duration 232 * for discoverability in seconds. The current default is 120 seconds, and 233 * requests over 300 seconds will be capped. These values could change. 234 */ 235 public static final String EXTRA_DISCOVERABLE_DURATION = 236 "android.bluetooth.adapter.extra.DISCOVERABLE_DURATION"; 237 238 /** 239 * Activity Action: Show a system activity that allows the user to turn on 240 * Bluetooth. 241 * <p>This system activity will return once Bluetooth has completed turning 242 * on, or the user has decided not to turn Bluetooth on. 243 * <p>Notification of the result of this activity is posted using the 244 * {@link android.app.Activity#onActivityResult} callback. The 245 * <code>resultCode</code> 246 * will be {@link android.app.Activity#RESULT_OK} if Bluetooth has been 247 * turned on or {@link android.app.Activity#RESULT_CANCELED} if the user 248 * has rejected the request or an error has occurred. 249 * <p>Applications can also listen for {@link #ACTION_STATE_CHANGED} 250 * for global notification whenever Bluetooth is turned on or off. 251 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 252 */ 253 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 254 public static final String ACTION_REQUEST_ENABLE = 255 "android.bluetooth.adapter.action.REQUEST_ENABLE"; 256 257 /** 258 * Activity Action: Show a system activity that allows user to enable BLE scans even when 259 * Bluetooth is turned off.<p> 260 * 261 * Notification of result of this activity is posted using 262 * {@link android.app.Activity#onActivityResult}. The <code>resultCode</code> will be 263 * {@link android.app.Activity#RESULT_OK} if BLE scan always available setting is turned on or 264 * {@link android.app.Activity#RESULT_CANCELED} if the user has rejected the request or an 265 * error occurred. 266 * 267 * @hide 268 */ 269 @SystemApi 270 @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) 271 public static final String ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE = 272 "android.bluetooth.adapter.action.REQUEST_BLE_SCAN_ALWAYS_AVAILABLE"; 273 274 /** 275 * Broadcast Action: Indicates the Bluetooth scan mode of the local Adapter 276 * has changed. 277 * <p>Always contains the extra fields {@link #EXTRA_SCAN_MODE} and {@link 278 * #EXTRA_PREVIOUS_SCAN_MODE} containing the new and old scan modes 279 * respectively. 280 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 281 */ 282 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 283 public static final String ACTION_SCAN_MODE_CHANGED = 284 "android.bluetooth.adapter.action.SCAN_MODE_CHANGED"; 285 286 /** 287 * Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED} 288 * intents to request the current scan mode. Possible values are: 289 * {@link #SCAN_MODE_NONE}, 290 * {@link #SCAN_MODE_CONNECTABLE}, 291 * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}, 292 */ 293 public static final String EXTRA_SCAN_MODE = "android.bluetooth.adapter.extra.SCAN_MODE"; 294 /** 295 * Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED} 296 * intents to request the previous scan mode. Possible values are: 297 * {@link #SCAN_MODE_NONE}, 298 * {@link #SCAN_MODE_CONNECTABLE}, 299 * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}, 300 */ 301 public static final String EXTRA_PREVIOUS_SCAN_MODE = 302 "android.bluetooth.adapter.extra.PREVIOUS_SCAN_MODE"; 303 304 /** @hide */ 305 @IntDef({SCAN_MODE_NONE, SCAN_MODE_CONNECTABLE, SCAN_MODE_CONNECTABLE_DISCOVERABLE}) 306 @Retention(RetentionPolicy.SOURCE) 307 public @interface ScanMode {} 308 309 /** 310 * Indicates that both inquiry scan and page scan are disabled on the local 311 * Bluetooth adapter. Therefore this device is neither discoverable 312 * nor connectable from remote Bluetooth devices. 313 */ 314 public static final int SCAN_MODE_NONE = 20; 315 /** 316 * Indicates that inquiry scan is disabled, but page scan is enabled on the 317 * local Bluetooth adapter. Therefore this device is not discoverable from 318 * remote Bluetooth devices, but is connectable from remote devices that 319 * have previously discovered this device. 320 */ 321 public static final int SCAN_MODE_CONNECTABLE = 21; 322 /** 323 * Indicates that both inquiry scan and page scan are enabled on the local 324 * Bluetooth adapter. Therefore this device is both discoverable and 325 * connectable from remote Bluetooth devices. 326 */ 327 public static final int SCAN_MODE_CONNECTABLE_DISCOVERABLE = 23; 328 329 /** 330 * Broadcast Action: The local Bluetooth adapter has started the remote 331 * device discovery process. 332 * <p>This usually involves an inquiry scan of about 12 seconds, followed 333 * by a page scan of each new device to retrieve its Bluetooth name. 334 * <p>Register for {@link BluetoothDevice#ACTION_FOUND} to be notified as 335 * remote Bluetooth devices are found. 336 * <p>Device discovery is a heavyweight procedure. New connections to 337 * remote Bluetooth devices should not be attempted while discovery is in 338 * progress, and existing connections will experience limited bandwidth 339 * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing 340 * discovery. 341 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive. 342 */ 343 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 344 public static final String ACTION_DISCOVERY_STARTED = 345 "android.bluetooth.adapter.action.DISCOVERY_STARTED"; 346 /** 347 * Broadcast Action: The local Bluetooth adapter has finished the device 348 * discovery process. 349 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive. 350 */ 351 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 352 public static final String ACTION_DISCOVERY_FINISHED = 353 "android.bluetooth.adapter.action.DISCOVERY_FINISHED"; 354 355 /** 356 * Broadcast Action: The local Bluetooth adapter has changed its friendly 357 * Bluetooth name. 358 * <p>This name is visible to remote Bluetooth devices. 359 * <p>Always contains the extra field {@link #EXTRA_LOCAL_NAME} containing 360 * the name. 361 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive. 362 */ 363 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 364 public static final String ACTION_LOCAL_NAME_CHANGED = 365 "android.bluetooth.adapter.action.LOCAL_NAME_CHANGED"; 366 /** 367 * Used as a String extra field in {@link #ACTION_LOCAL_NAME_CHANGED} 368 * intents to request the local Bluetooth name. 369 */ 370 public static final String EXTRA_LOCAL_NAME = "android.bluetooth.adapter.extra.LOCAL_NAME"; 371 372 /** 373 * Intent used to broadcast the change in connection state of the local 374 * Bluetooth adapter to a profile of the remote device. When the adapter is 375 * not connected to any profiles of any remote devices and it attempts a 376 * connection to a profile this intent will sent. Once connected, this intent 377 * will not be sent for any more connection attempts to any profiles of any 378 * remote device. When the adapter disconnects from the last profile its 379 * connected to of any remote device, this intent will be sent. 380 * 381 * <p> This intent is useful for applications that are only concerned about 382 * whether the local adapter is connected to any profile of any device and 383 * are not really concerned about which profile. For example, an application 384 * which displays an icon to display whether Bluetooth is connected or not 385 * can use this intent. 386 * 387 * <p>This intent will have 3 extras: 388 * {@link #EXTRA_CONNECTION_STATE} - The current connection state. 389 * {@link #EXTRA_PREVIOUS_CONNECTION_STATE}- The previous connection state. 390 * {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. 391 * 392 * {@link #EXTRA_CONNECTION_STATE} or {@link #EXTRA_PREVIOUS_CONNECTION_STATE} 393 * can be any of {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, 394 * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}. 395 * 396 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} to receive. 397 */ 398 @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) 399 public static final String ACTION_CONNECTION_STATE_CHANGED = 400 "android.bluetooth.adapter.action.CONNECTION_STATE_CHANGED"; 401 402 /** 403 * Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED} 404 * 405 * This extra represents the current connection state. 406 */ 407 public static final String EXTRA_CONNECTION_STATE = 408 "android.bluetooth.adapter.extra.CONNECTION_STATE"; 409 410 /** 411 * Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED} 412 * 413 * This extra represents the previous connection state. 414 */ 415 public static final String EXTRA_PREVIOUS_CONNECTION_STATE = 416 "android.bluetooth.adapter.extra.PREVIOUS_CONNECTION_STATE"; 417 418 /** 419 * Broadcast Action: The Bluetooth adapter state has changed in LE only mode. 420 * @hide 421 */ 422 @SystemApi 423 public static final String ACTION_BLE_STATE_CHANGED = 424 "android.bluetooth.adapter.action.BLE_STATE_CHANGED"; 425 426 /** 427 * Broadcast Action: The notifys Bluetooth ACL connected event. This will be 428 * by BLE Always on enabled application to know the ACL_CONNECTED event 429 * when Bluetooth state in STATE_BLE_ON. This denotes GATT connection 430 * as Bluetooth LE is the only feature available in STATE_BLE_ON 431 * 432 * This is counterpart of {@link BluetoothDevice#ACTION_ACL_CONNECTED} which 433 * works in Bluetooth state STATE_ON 434 * @hide 435 */ 436 public static final String ACTION_BLE_ACL_CONNECTED = 437 "android.bluetooth.adapter.action.BLE_ACL_CONNECTED"; 438 439 /** 440 * Broadcast Action: The notifys Bluetooth ACL connected event. This will be 441 * by BLE Always on enabled application to know the ACL_DISCONNECTED event 442 * when Bluetooth state in STATE_BLE_ON. This denotes GATT disconnection as Bluetooth 443 * LE is the only feature available in STATE_BLE_ON 444 * 445 * This is counterpart of {@link BluetoothDevice#ACTION_ACL_DISCONNECTED} which 446 * works in Bluetooth state STATE_ON 447 * @hide 448 */ 449 public static final String ACTION_BLE_ACL_DISCONNECTED = 450 "android.bluetooth.adapter.action.BLE_ACL_DISCONNECTED"; 451 452 /** The profile is in disconnected state */ 453 public static final int STATE_DISCONNECTED = 0; 454 /** The profile is in connecting state */ 455 public static final int STATE_CONNECTING = 1; 456 /** The profile is in connected state */ 457 public static final int STATE_CONNECTED = 2; 458 /** The profile is in disconnecting state */ 459 public static final int STATE_DISCONNECTING = 3; 460 461 /** @hide */ 462 public static final String BLUETOOTH_MANAGER_SERVICE = "bluetooth_manager"; 463 private final IBinder mToken; 464 465 466 /** When creating a ServerSocket using listenUsingRfcommOn() or 467 * listenUsingL2capOn() use SOCKET_CHANNEL_AUTO_STATIC to create 468 * a ServerSocket that auto assigns a channel number to the first 469 * bluetooth socket. 470 * The channel number assigned to this first Bluetooth Socket will 471 * be stored in the ServerSocket, and reused for subsequent Bluetooth 472 * sockets. 473 * @hide */ 474 public static final int SOCKET_CHANNEL_AUTO_STATIC_NO_SDP = -2; 475 476 477 private static final int ADDRESS_LENGTH = 17; 478 479 /** 480 * Lazily initialized singleton. Guaranteed final after first object 481 * constructed. 482 */ 483 private static BluetoothAdapter sAdapter; 484 485 private static BluetoothLeScanner sBluetoothLeScanner; 486 private static BluetoothLeAdvertiser sBluetoothLeAdvertiser; 487 488 private final IBluetoothManager mManagerService; 489 private IBluetooth mService; 490 private final ReentrantReadWriteLock mServiceLock = 491 new ReentrantReadWriteLock(); 492 493 private final Object mLock = new Object(); 494 private final Map<LeScanCallback, ScanCallback> mLeScanClients; 495 496 /** 497 * Get a handle to the default local Bluetooth adapter. 498 * <p>Currently Android only supports one Bluetooth adapter, but the API 499 * could be extended to support more. This will always return the default 500 * adapter. 501 * @return the default local adapter, or null if Bluetooth is not supported 502 * on this hardware platform 503 */ 504 public static synchronized BluetoothAdapter getDefaultAdapter() { 505 if (sAdapter == null) { 506 IBinder b = ServiceManager.getService(BLUETOOTH_MANAGER_SERVICE); 507 if (b != null) { 508 IBluetoothManager managerService = IBluetoothManager.Stub.asInterface(b); 509 sAdapter = new BluetoothAdapter(managerService); 510 } else { 511 Log.e(TAG, "Bluetooth binder is null"); 512 } 513 } 514 return sAdapter; 515 } 516 517 /** 518 * Use {@link #getDefaultAdapter} to get the BluetoothAdapter instance. 519 */ 520 BluetoothAdapter(IBluetoothManager managerService) { 521 522 if (managerService == null) { 523 throw new IllegalArgumentException("bluetooth manager service is null"); 524 } 525 try { 526 mServiceLock.writeLock().lock(); 527 mService = managerService.registerAdapter(mManagerCallback); 528 } catch (RemoteException e) { 529 Log.e(TAG, "", e); 530 } finally { 531 mServiceLock.writeLock().unlock(); 532 } 533 mManagerService = managerService; 534 mLeScanClients = new HashMap<LeScanCallback, ScanCallback>(); 535 mToken = new Binder(); 536 } 537 538 /** 539 * Get a {@link BluetoothDevice} object for the given Bluetooth hardware 540 * address. 541 * <p>Valid Bluetooth hardware addresses must be upper case, in a format 542 * such as "00:11:22:33:AA:BB". The helper {@link #checkBluetoothAddress} is 543 * available to validate a Bluetooth address. 544 * <p>A {@link BluetoothDevice} will always be returned for a valid 545 * hardware address, even if this adapter has never seen that device. 546 * 547 * @param address valid Bluetooth MAC address 548 * @throws IllegalArgumentException if address is invalid 549 */ 550 public BluetoothDevice getRemoteDevice(String address) { 551 return new BluetoothDevice(address); 552 } 553 554 /** 555 * Get a {@link BluetoothDevice} object for the given Bluetooth hardware 556 * address. 557 * <p>Valid Bluetooth hardware addresses must be 6 bytes. This method 558 * expects the address in network byte order (MSB first). 559 * <p>A {@link BluetoothDevice} will always be returned for a valid 560 * hardware address, even if this adapter has never seen that device. 561 * 562 * @param address Bluetooth MAC address (6 bytes) 563 * @throws IllegalArgumentException if address is invalid 564 */ 565 public BluetoothDevice getRemoteDevice(byte[] address) { 566 if (address == null || address.length != 6) { 567 throw new IllegalArgumentException("Bluetooth address must have 6 bytes"); 568 } 569 return new BluetoothDevice(String.format(Locale.US, "%02X:%02X:%02X:%02X:%02X:%02X", 570 address[0], address[1], address[2], address[3], address[4], address[5])); 571 } 572 573 /** 574 * Returns a {@link BluetoothLeAdvertiser} object for Bluetooth LE Advertising operations. 575 * Will return null if Bluetooth is turned off or if Bluetooth LE Advertising is not 576 * supported on this device. 577 * <p> 578 * Use {@link #isMultipleAdvertisementSupported()} to check whether LE Advertising is supported 579 * on this device before calling this method. 580 */ 581 public BluetoothLeAdvertiser getBluetoothLeAdvertiser() { 582 if (!getLeAccess()) return null; 583 if (!isMultipleAdvertisementSupported() && !isPeripheralModeSupported()) { 584 Log.e(TAG, "Bluetooth LE advertising not supported"); 585 return null; 586 } 587 synchronized(mLock) { 588 if (sBluetoothLeAdvertiser == null) { 589 sBluetoothLeAdvertiser = new BluetoothLeAdvertiser(mManagerService); 590 } 591 } 592 return sBluetoothLeAdvertiser; 593 } 594 595 /** 596 * Returns a {@link BluetoothLeScanner} object for Bluetooth LE scan operations. 597 */ 598 public BluetoothLeScanner getBluetoothLeScanner() { 599 if (!getLeAccess()) return null; 600 synchronized(mLock) { 601 if (sBluetoothLeScanner == null) { 602 sBluetoothLeScanner = new BluetoothLeScanner(mManagerService); 603 } 604 } 605 return sBluetoothLeScanner; 606 } 607 608 /** 609 * Return true if Bluetooth is currently enabled and ready for use. 610 * <p>Equivalent to: 611 * <code>getBluetoothState() == STATE_ON</code> 612 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 613 * 614 * @return true if the local adapter is turned on 615 */ 616 @RequiresPermission(Manifest.permission.BLUETOOTH) 617 public boolean isEnabled() { 618 try { 619 mServiceLock.readLock().lock(); 620 if (mService != null) return mService.isEnabled(); 621 } catch (RemoteException e) { 622 Log.e(TAG, "", e); 623 } finally { 624 mServiceLock.readLock().unlock(); 625 } 626 627 return false; 628 } 629 630 /** 631 * Return true if Bluetooth LE(Always BLE On feature) is currently 632 * enabled and ready for use 633 * <p>This returns true if current state is either STATE_ON or STATE_BLE_ON 634 * 635 * @return true if the local Bluetooth LE adapter is turned on 636 * @hide 637 */ 638 @SystemApi 639 public boolean isLeEnabled() { 640 final int state = getLeState(); 641 if (state == BluetoothAdapter.STATE_ON) { 642 if (DBG) Log.d (TAG, "STATE_ON"); 643 } else if (state == BluetoothAdapter.STATE_BLE_ON) { 644 if (DBG) Log.d (TAG, "STATE_BLE_ON"); 645 } else { 646 if (DBG) Log.d (TAG, "STATE_OFF"); 647 return false; 648 } 649 return true; 650 } 651 652 /** 653 * Performs action based on user action to turn BT ON 654 * or OFF if BT is in BLE_ON state 655 */ 656 private void notifyUserAction(boolean enable) { 657 try { 658 mServiceLock.readLock().lock(); 659 if (mService == null) { 660 Log.e(TAG, "mService is null"); 661 return; 662 } 663 if (enable) { 664 mService.onLeServiceUp(); //NA:TODO implementation pending 665 } else { 666 mService.onBrEdrDown(); //NA:TODO implementation pending 667 } 668 } catch (RemoteException e) { 669 Log.e(TAG, "", e); 670 } finally { 671 mServiceLock.readLock().unlock(); 672 } 673 } 674 675 /** 676 * Turns off Bluetooth LE which was earlier turned on by calling EnableBLE(). 677 * 678 * <p> If the internal Adapter state is STATE_BLE_ON, this would trigger the transition 679 * to STATE_OFF and completely shut-down Bluetooth 680 * 681 * <p> If the Adapter state is STATE_ON, This would unregister the existance of 682 * special Bluetooth LE application and hence the further turning off of Bluetooth 683 * from UI would ensure the complete turn-off of Bluetooth rather than staying back 684 * BLE only state 685 * 686 * <p>This is an asynchronous call: it will return immediately, and 687 * clients should listen for {@link #ACTION_BLE_STATE_CHANGED} 688 * to be notified of subsequent adapter state changes If this call returns 689 * true, then the adapter state will immediately transition from {@link 690 * #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time 691 * later transition to either {@link #STATE_BLE_ON} or {@link 692 * #STATE_OFF} based on the existance of the further Always BLE ON enabled applications 693 * If this call returns false then there was an 694 * immediate problem that will prevent the QAdapter from being turned off - 695 * such as the QAadapter already being turned off. 696 * 697 * @return true to indicate success, or false on 698 * immediate error 699 * @hide 700 */ 701 @SystemApi 702 public boolean disableBLE() { 703 if (!isBleScanAlwaysAvailable()) return false; 704 705 int state = getLeState(); 706 if (state == BluetoothAdapter.STATE_ON) { 707 if (DBG) Log.d (TAG, "STATE_ON: shouldn't disable"); 708 try { 709 mManagerService.updateBleAppCount(mToken, false); 710 } catch (RemoteException e) { 711 Log.e(TAG, "", e); 712 } 713 return true; 714 715 } else if (state == BluetoothAdapter.STATE_BLE_ON) { 716 if (DBG) Log.d (TAG, "STATE_BLE_ON"); 717 int bleAppCnt = 0; 718 try { 719 bleAppCnt = mManagerService.updateBleAppCount(mToken, false); 720 } catch (RemoteException e) { 721 Log.e(TAG, "", e); 722 } 723 if (bleAppCnt == 0) { 724 // Disable only if there are no other clients 725 notifyUserAction(false); 726 } 727 return true; 728 } 729 730 if (DBG) Log.d (TAG, "STATE_OFF: Already disabled"); 731 return false; 732 } 733 734 /** 735 * Special Applications who want to only turn on Bluetooth Low Energy (BLE) would 736 * EnableBLE, EnableBLE brings-up Bluetooth so that application can access 737 * only LE related feature (Bluetooth GATT layers interfaces using the respective class) 738 * EnableBLE in turn registers the existance of a special App which wants to 739 * turn on Bluetooth Low enrgy part without making it visible at the settings UI 740 * as Bluetooth ON. 741 * <p>Invoking EnableBLE when Bluetooth is already in ON state, would just registers 742 * the existance of special Application and doesn't do anything to current BT state. 743 * when user turn OFF Bluetooth from UI, if there is an existance of special app, Bluetooth 744 * would stay in BLE_ON state so that LE features are still acessible to the special 745 * Applications. 746 * 747 * <p>This is an asynchronous call: it will return immediately, and 748 * clients should listen for {@link #ACTION_BLE_STATE_CHANGED} 749 * to be notified of subsequent adapter state changes. If this call returns 750 * true, then the adapter state will immediately transition from {@link 751 * #STATE_OFF} to {@link #STATE_BLE_TURNING_ON}, and some time 752 * later transition to either {@link #STATE_OFF} or {@link 753 * #STATE_BLE_ON}. If this call returns false then there was an 754 * immediate problem that will prevent the adapter from being turned on - 755 * such as Airplane mode, or the adapter is already turned on. 756 * (@link #ACTION_BLE_STATE_CHANGED) returns the Bluetooth Adapter's various 757 * states, It includes all the classic Bluetooth Adapter states along with 758 * internal BLE only states 759 * 760 * @return true to indicate Bluetooth LE start-up has begun, or false on 761 * immediate error 762 * @hide 763 */ 764 @SystemApi 765 public boolean enableBLE() { 766 if (!isBleScanAlwaysAvailable()) return false; 767 768 if (isLeEnabled() == true) { 769 if (DBG) Log.d(TAG, "enableBLE(): BT is already enabled..!"); 770 try { 771 mManagerService.updateBleAppCount(mToken, true); 772 } catch (RemoteException e) { 773 Log.e(TAG, "", e); 774 } 775 return true; 776 } 777 778 try { 779 if (DBG) Log.d(TAG, "Calling enableBLE"); 780 mManagerService.updateBleAppCount(mToken, true); 781 return mManagerService.enable(); 782 } catch (RemoteException e) { 783 Log.e(TAG, "", e); 784 } 785 786 return false; 787 } 788 789 /** 790 * Get the current state of the local Bluetooth adapter. 791 * <p>Possible return values are 792 * {@link #STATE_OFF}, 793 * {@link #STATE_TURNING_ON}, 794 * {@link #STATE_ON}, 795 * {@link #STATE_TURNING_OFF}. 796 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 797 * 798 * @return current state of Bluetooth adapter 799 */ 800 @RequiresPermission(Manifest.permission.BLUETOOTH) 801 @AdapterState 802 public int getState() { 803 int state = BluetoothAdapter.STATE_OFF; 804 805 try { 806 mServiceLock.readLock().lock(); 807 if (mService != null) { 808 state = mService.getState(); 809 } 810 } catch (RemoteException e) { 811 Log.e(TAG, "", e); 812 } finally { 813 mServiceLock.readLock().unlock(); 814 } 815 816 // Consider all internal states as OFF 817 if (state == BluetoothAdapter.STATE_BLE_ON 818 || state == BluetoothAdapter.STATE_BLE_TURNING_ON 819 || state == BluetoothAdapter.STATE_BLE_TURNING_OFF) { 820 if (VDBG) Log.d(TAG, "Consider internal state as OFF"); 821 state = BluetoothAdapter.STATE_OFF; 822 } 823 if (VDBG) Log.d(TAG, "" + hashCode() + ": getState(). Returning " + state); 824 return state; 825 } 826 827 /** 828 * Get the current state of the local Bluetooth adapter 829 * <p>This returns current internal state of Adapter including LE ON/OFF 830 * 831 * <p>Possible return values are 832 * {@link #STATE_OFF}, 833 * {@link #STATE_BLE_TURNING_ON}, 834 * {@link #STATE_BLE_ON}, 835 * {@link #STATE_TURNING_ON}, 836 * {@link #STATE_ON}, 837 * {@link #STATE_TURNING_OFF}, 838 * {@link #STATE_BLE_TURNING_OFF}. 839 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 840 * 841 * @return current state of Bluetooth adapter 842 * @hide 843 */ 844 @RequiresPermission(Manifest.permission.BLUETOOTH) 845 @AdapterState 846 public int getLeState() { 847 int state = BluetoothAdapter.STATE_OFF; 848 849 try { 850 mServiceLock.readLock().lock(); 851 if (mService != null) { 852 state = mService.getState(); 853 } 854 } catch (RemoteException e) { 855 Log.e(TAG, "", e); 856 } finally { 857 mServiceLock.readLock().unlock(); 858 } 859 860 if (VDBG) Log.d(TAG,"getLeState() returning " + state); 861 return state; 862 } 863 864 boolean getLeAccess() { 865 if(getLeState() == STATE_ON) 866 return true; 867 868 else if (getLeState() == STATE_BLE_ON) 869 return true; // TODO: FILTER SYSTEM APPS HERE <-- 870 871 return false; 872 } 873 874 /** 875 * Turn on the local Bluetooth adapter—do not use without explicit 876 * user action to turn on Bluetooth. 877 * <p>This powers on the underlying Bluetooth hardware, and starts all 878 * Bluetooth system services. 879 * <p class="caution"><strong>Bluetooth should never be enabled without 880 * direct user consent</strong>. If you want to turn on Bluetooth in order 881 * to create a wireless connection, you should use the {@link 882 * #ACTION_REQUEST_ENABLE} Intent, which will raise a dialog that requests 883 * user permission to turn on Bluetooth. The {@link #enable()} method is 884 * provided only for applications that include a user interface for changing 885 * system settings, such as a "power manager" app.</p> 886 * <p>This is an asynchronous call: it will return immediately, and 887 * clients should listen for {@link #ACTION_STATE_CHANGED} 888 * to be notified of subsequent adapter state changes. If this call returns 889 * true, then the adapter state will immediately transition from {@link 890 * #STATE_OFF} to {@link #STATE_TURNING_ON}, and some time 891 * later transition to either {@link #STATE_OFF} or {@link 892 * #STATE_ON}. If this call returns false then there was an 893 * immediate problem that will prevent the adapter from being turned on - 894 * such as Airplane mode, or the adapter is already turned on. 895 * <p>Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} 896 * permission 897 * 898 * @return true to indicate adapter startup has begun, or false on 899 * immediate error 900 */ 901 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 902 public boolean enable() { 903 if (isEnabled() == true) { 904 if (DBG) Log.d(TAG, "enable(): BT is already enabled..!"); 905 return true; 906 } 907 try { 908 return mManagerService.enable(); 909 } catch (RemoteException e) {Log.e(TAG, "", e);} 910 return false; 911 } 912 913 /** 914 * Turn off the local Bluetooth adapter—do not use without explicit 915 * user action to turn off Bluetooth. 916 * <p>This gracefully shuts down all Bluetooth connections, stops Bluetooth 917 * system services, and powers down the underlying Bluetooth hardware. 918 * <p class="caution"><strong>Bluetooth should never be disabled without 919 * direct user consent</strong>. The {@link #disable()} method is 920 * provided only for applications that include a user interface for changing 921 * system settings, such as a "power manager" app.</p> 922 * <p>This is an asynchronous call: it will return immediately, and 923 * clients should listen for {@link #ACTION_STATE_CHANGED} 924 * to be notified of subsequent adapter state changes. If this call returns 925 * true, then the adapter state will immediately transition from {@link 926 * #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time 927 * later transition to either {@link #STATE_OFF} or {@link 928 * #STATE_ON}. If this call returns false then there was an 929 * immediate problem that will prevent the adapter from being turned off - 930 * such as the adapter already being turned off. 931 * <p>Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} 932 * permission 933 * 934 * @return true to indicate adapter shutdown has begun, or false on 935 * immediate error 936 */ 937 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 938 public boolean disable() { 939 try { 940 return mManagerService.disable(true); 941 } catch (RemoteException e) {Log.e(TAG, "", e);} 942 return false; 943 } 944 945 /** 946 * Turn off the local Bluetooth adapter and don't persist the setting. 947 * 948 * <p>Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} 949 * permission 950 * 951 * @return true to indicate adapter shutdown has begun, or false on 952 * immediate error 953 * @hide 954 */ 955 public boolean disable(boolean persist) { 956 957 try { 958 return mManagerService.disable(persist); 959 } catch (RemoteException e) {Log.e(TAG, "", e);} 960 return false; 961 } 962 963 /** 964 * Returns the hardware address of the local Bluetooth adapter. 965 * <p>For example, "00:11:22:AA:BB:CC". 966 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 967 * 968 * @return Bluetooth hardware address as string 969 */ 970 @RequiresPermission(Manifest.permission.BLUETOOTH) 971 public String getAddress() { 972 try { 973 return mManagerService.getAddress(); 974 } catch (RemoteException e) {Log.e(TAG, "", e);} 975 return null; 976 } 977 978 /** 979 * Get the friendly Bluetooth name of the local Bluetooth adapter. 980 * <p>This name is visible to remote Bluetooth devices. 981 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 982 * 983 * @return the Bluetooth name, or null on error 984 */ 985 public String getName() { 986 try { 987 return mManagerService.getName(); 988 } catch (RemoteException e) {Log.e(TAG, "", e);} 989 return null; 990 } 991 992 /** 993 * enable or disable Bluetooth HCI snoop log. 994 * 995 * <p>Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} 996 * permission 997 * 998 * @return true to indicate configure HCI log successfully, or false on 999 * immediate error 1000 * @hide 1001 */ 1002 public boolean configHciSnoopLog(boolean enable) { 1003 try { 1004 mServiceLock.readLock().lock(); 1005 if (mService != null) return mService.configHciSnoopLog(enable); 1006 } catch (RemoteException e) { 1007 Log.e(TAG, "", e); 1008 } finally { 1009 mServiceLock.readLock().unlock(); 1010 } 1011 return false; 1012 } 1013 1014 /** 1015 * Factory reset bluetooth settings. 1016 * 1017 * <p>Requires the {@link android.Manifest.permission#BLUETOOTH_PRIVILEGED} 1018 * permission 1019 * 1020 * @return true to indicate that the config file was successfully cleared 1021 * 1022 * @hide 1023 */ 1024 public boolean factoryReset() { 1025 try { 1026 mServiceLock.readLock().lock(); 1027 if (mService != null) { 1028 return mService.factoryReset(); 1029 } 1030 SystemProperties.set("persist.bluetooth.factoryreset", "true"); 1031 } catch (RemoteException e) { 1032 Log.e(TAG, "", e); 1033 } finally { 1034 mServiceLock.readLock().unlock(); 1035 } 1036 return false; 1037 } 1038 1039 /** 1040 * Get the UUIDs supported by the local Bluetooth adapter. 1041 * 1042 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 1043 * 1044 * @return the UUIDs supported by the local Bluetooth Adapter. 1045 * @hide 1046 */ 1047 public ParcelUuid[] getUuids() { 1048 if (getState() != STATE_ON) return null; 1049 try { 1050 mServiceLock.readLock().lock(); 1051 if (mService != null) return mService.getUuids(); 1052 } catch (RemoteException e) { 1053 Log.e(TAG, "", e); 1054 } finally { 1055 mServiceLock.readLock().unlock(); 1056 } 1057 return null; 1058 } 1059 1060 /** 1061 * Set the friendly Bluetooth name of the local Bluetooth adapter. 1062 * <p>This name is visible to remote Bluetooth devices. 1063 * <p>Valid Bluetooth names are a maximum of 248 bytes using UTF-8 1064 * encoding, although many remote devices can only display the first 1065 * 40 characters, and some may be limited to just 20. 1066 * <p>If Bluetooth state is not {@link #STATE_ON}, this API 1067 * will return false. After turning on Bluetooth, 1068 * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} 1069 * to get the updated value. 1070 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} 1071 * 1072 * @param name a valid Bluetooth name 1073 * @return true if the name was set, false otherwise 1074 */ 1075 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 1076 public boolean setName(String name) { 1077 if (getState() != STATE_ON) return false; 1078 try { 1079 mServiceLock.readLock().lock(); 1080 if (mService != null) return mService.setName(name); 1081 } catch (RemoteException e) { 1082 Log.e(TAG, "", e); 1083 } finally { 1084 mServiceLock.readLock().unlock(); 1085 } 1086 return false; 1087 } 1088 1089 /** 1090 * Get the current Bluetooth scan mode of the local Bluetooth adapter. 1091 * <p>The Bluetooth scan mode determines if the local adapter is 1092 * connectable and/or discoverable from remote Bluetooth devices. 1093 * <p>Possible values are: 1094 * {@link #SCAN_MODE_NONE}, 1095 * {@link #SCAN_MODE_CONNECTABLE}, 1096 * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. 1097 * <p>If Bluetooth state is not {@link #STATE_ON}, this API 1098 * will return {@link #SCAN_MODE_NONE}. After turning on Bluetooth, 1099 * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} 1100 * to get the updated value. 1101 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 1102 * 1103 * @return scan mode 1104 */ 1105 @RequiresPermission(Manifest.permission.BLUETOOTH) 1106 @ScanMode 1107 public int getScanMode() { 1108 if (getState() != STATE_ON) return SCAN_MODE_NONE; 1109 try { 1110 mServiceLock.readLock().lock(); 1111 if (mService != null) return mService.getScanMode(); 1112 } catch (RemoteException e) { 1113 Log.e(TAG, "", e); 1114 } finally { 1115 mServiceLock.readLock().unlock(); 1116 } 1117 return SCAN_MODE_NONE; 1118 } 1119 1120 /** 1121 * Set the Bluetooth scan mode of the local Bluetooth adapter. 1122 * <p>The Bluetooth scan mode determines if the local adapter is 1123 * connectable and/or discoverable from remote Bluetooth devices. 1124 * <p>For privacy reasons, discoverable mode is automatically turned off 1125 * after <code>duration</code> seconds. For example, 120 seconds should be 1126 * enough for a remote device to initiate and complete its discovery 1127 * process. 1128 * <p>Valid scan mode values are: 1129 * {@link #SCAN_MODE_NONE}, 1130 * {@link #SCAN_MODE_CONNECTABLE}, 1131 * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. 1132 * <p>If Bluetooth state is not {@link #STATE_ON}, this API 1133 * will return false. After turning on Bluetooth, 1134 * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} 1135 * to get the updated value. 1136 * <p>Requires {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} 1137 * <p>Applications cannot set the scan mode. They should use 1138 * <code>startActivityForResult( 1139 * BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE}) 1140 * </code>instead. 1141 * 1142 * @param mode valid scan mode 1143 * @param duration time in seconds to apply scan mode, only used for 1144 * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE} 1145 * @return true if the scan mode was set, false otherwise 1146 * @hide 1147 */ 1148 public boolean setScanMode(@ScanMode int mode, int duration) { 1149 if (getState() != STATE_ON) return false; 1150 try { 1151 mServiceLock.readLock().lock(); 1152 if (mService != null) return mService.setScanMode(mode, duration); 1153 } catch (RemoteException e) { 1154 Log.e(TAG, "", e); 1155 } finally { 1156 mServiceLock.readLock().unlock(); 1157 } 1158 return false; 1159 } 1160 1161 /** @hide */ 1162 public boolean setScanMode(int mode) { 1163 if (getState() != STATE_ON) return false; 1164 /* getDiscoverableTimeout() to use the latest from NV than use 0 */ 1165 return setScanMode(mode, getDiscoverableTimeout()); 1166 } 1167 1168 /** @hide */ 1169 public int getDiscoverableTimeout() { 1170 if (getState() != STATE_ON) return -1; 1171 try { 1172 mServiceLock.readLock().lock(); 1173 if (mService != null) return mService.getDiscoverableTimeout(); 1174 } catch (RemoteException e) { 1175 Log.e(TAG, "", e); 1176 } finally { 1177 mServiceLock.readLock().unlock(); 1178 } 1179 return -1; 1180 } 1181 1182 /** @hide */ 1183 public void setDiscoverableTimeout(int timeout) { 1184 if (getState() != STATE_ON) return; 1185 try { 1186 mServiceLock.readLock().lock(); 1187 if (mService != null) mService.setDiscoverableTimeout(timeout); 1188 } catch (RemoteException e) { 1189 Log.e(TAG, "", e); 1190 } finally { 1191 mServiceLock.readLock().unlock(); 1192 } 1193 } 1194 1195 /** 1196 * Start the remote device discovery process. 1197 * <p>The discovery process usually involves an inquiry scan of about 12 1198 * seconds, followed by a page scan of each new device to retrieve its 1199 * Bluetooth name. 1200 * <p>This is an asynchronous call, it will return immediately. Register 1201 * for {@link #ACTION_DISCOVERY_STARTED} and {@link 1202 * #ACTION_DISCOVERY_FINISHED} intents to determine exactly when the 1203 * discovery starts and completes. Register for {@link 1204 * BluetoothDevice#ACTION_FOUND} to be notified as remote Bluetooth devices 1205 * are found. 1206 * <p>Device discovery is a heavyweight procedure. New connections to 1207 * remote Bluetooth devices should not be attempted while discovery is in 1208 * progress, and existing connections will experience limited bandwidth 1209 * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing 1210 * discovery. Discovery is not managed by the Activity, 1211 * but is run as a system service, so an application should always call 1212 * {@link BluetoothAdapter#cancelDiscovery()} even if it 1213 * did not directly request a discovery, just to be sure. 1214 * <p>Device discovery will only find remote devices that are currently 1215 * <i>discoverable</i> (inquiry scan enabled). Many Bluetooth devices are 1216 * not discoverable by default, and need to be entered into a special mode. 1217 * <p>If Bluetooth state is not {@link #STATE_ON}, this API 1218 * will return false. After turning on Bluetooth, 1219 * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} 1220 * to get the updated value. 1221 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}. 1222 * 1223 * @return true on success, false on error 1224 */ 1225 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 1226 public boolean startDiscovery() { 1227 if (getState() != STATE_ON) return false; 1228 try { 1229 mServiceLock.readLock().lock(); 1230 if (mService != null) return mService.startDiscovery(); 1231 } catch (RemoteException e) { 1232 Log.e(TAG, "", e); 1233 } finally { 1234 mServiceLock.readLock().unlock(); 1235 } 1236 return false; 1237 } 1238 1239 /** 1240 * Cancel the current device discovery process. 1241 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}. 1242 * <p>Because discovery is a heavyweight procedure for the Bluetooth 1243 * adapter, this method should always be called before attempting to connect 1244 * to a remote device with {@link 1245 * android.bluetooth.BluetoothSocket#connect()}. Discovery is not managed by 1246 * the Activity, but is run as a system service, so an application should 1247 * always call cancel discovery even if it did not directly request a 1248 * discovery, just to be sure. 1249 * <p>If Bluetooth state is not {@link #STATE_ON}, this API 1250 * will return false. After turning on Bluetooth, 1251 * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} 1252 * to get the updated value. 1253 * 1254 * @return true on success, false on error 1255 */ 1256 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 1257 public boolean cancelDiscovery() { 1258 if (getState() != STATE_ON) return false; 1259 try { 1260 mServiceLock.readLock().lock(); 1261 if (mService != null) return mService.cancelDiscovery(); 1262 } catch (RemoteException e) { 1263 Log.e(TAG, "", e); 1264 } finally { 1265 mServiceLock.readLock().unlock(); 1266 } 1267 return false; 1268 } 1269 1270 /** 1271 * Return true if the local Bluetooth adapter is currently in the device 1272 * discovery process. 1273 * <p>Device discovery is a heavyweight procedure. New connections to 1274 * remote Bluetooth devices should not be attempted while discovery is in 1275 * progress, and existing connections will experience limited bandwidth 1276 * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing 1277 * discovery. 1278 * <p>Applications can also register for {@link #ACTION_DISCOVERY_STARTED} 1279 * or {@link #ACTION_DISCOVERY_FINISHED} to be notified when discovery 1280 * starts or completes. 1281 * <p>If Bluetooth state is not {@link #STATE_ON}, this API 1282 * will return false. After turning on Bluetooth, 1283 * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} 1284 * to get the updated value. 1285 * <p>Requires {@link android.Manifest.permission#BLUETOOTH}. 1286 * 1287 * @return true if discovering 1288 */ 1289 @RequiresPermission(Manifest.permission.BLUETOOTH) 1290 public boolean isDiscovering() { 1291 if (getState() != STATE_ON) return false; 1292 try { 1293 mServiceLock.readLock().lock(); 1294 if (mService != null) return mService.isDiscovering(); 1295 } catch (RemoteException e) { 1296 Log.e(TAG, "", e); 1297 } finally { 1298 mServiceLock.readLock().unlock(); 1299 } 1300 return false; 1301 } 1302 1303 /** 1304 * Return true if the multi advertisement is supported by the chipset 1305 * 1306 * @return true if Multiple Advertisement feature is supported 1307 */ 1308 public boolean isMultipleAdvertisementSupported() { 1309 if (getState() != STATE_ON) return false; 1310 try { 1311 mServiceLock.readLock().lock(); 1312 if (mService != null) return mService.isMultiAdvertisementSupported(); 1313 } catch (RemoteException e) { 1314 Log.e(TAG, "failed to get isMultipleAdvertisementSupported, error: ", e); 1315 } finally { 1316 mServiceLock.readLock().unlock(); 1317 } 1318 return false; 1319 } 1320 1321 /** 1322 * Returns {@code true} if BLE scan is always available, {@code false} otherwise. <p> 1323 * 1324 * If this returns {@code true}, application can issue {@link BluetoothLeScanner#startScan} and 1325 * fetch scan results even when Bluetooth is turned off.<p> 1326 * 1327 * To change this setting, use {@link #ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE}. 1328 * 1329 * @hide 1330 */ 1331 @SystemApi 1332 public boolean isBleScanAlwaysAvailable() { 1333 try { 1334 return mManagerService.isBleScanAlwaysAvailable(); 1335 } catch (RemoteException e) { 1336 Log.e(TAG, "remote expection when calling isBleScanAlwaysAvailable", e); 1337 return false; 1338 } 1339 } 1340 1341 /** 1342 * Returns whether peripheral mode is supported. 1343 * 1344 * @hide 1345 */ 1346 public boolean isPeripheralModeSupported() { 1347 if (getState() != STATE_ON) return false; 1348 try { 1349 mServiceLock.readLock().lock(); 1350 if (mService != null) return mService.isPeripheralModeSupported(); 1351 } catch (RemoteException e) { 1352 Log.e(TAG, "failed to get peripheral mode capability: ", e); 1353 } finally { 1354 mServiceLock.readLock().unlock(); 1355 } 1356 return false; 1357 } 1358 1359 /** 1360 * Return true if offloaded filters are supported 1361 * 1362 * @return true if chipset supports on-chip filtering 1363 */ 1364 public boolean isOffloadedFilteringSupported() { 1365 if (!getLeAccess()) return false; 1366 try { 1367 mServiceLock.readLock().lock(); 1368 if (mService != null) return mService.isOffloadedFilteringSupported(); 1369 } catch (RemoteException e) { 1370 Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e); 1371 } finally { 1372 mServiceLock.readLock().unlock(); 1373 } 1374 return false; 1375 } 1376 1377 /** 1378 * Return true if offloaded scan batching is supported 1379 * 1380 * @return true if chipset supports on-chip scan batching 1381 */ 1382 public boolean isOffloadedScanBatchingSupported() { 1383 if (!getLeAccess()) return false; 1384 try { 1385 mServiceLock.readLock().lock(); 1386 if (mService != null) return mService.isOffloadedScanBatchingSupported(); 1387 } catch (RemoteException e) { 1388 Log.e(TAG, "failed to get isOffloadedScanBatchingSupported, error: ", e); 1389 } finally { 1390 mServiceLock.readLock().unlock(); 1391 } 1392 return false; 1393 } 1394 1395 /** 1396 * Return true if hardware has entries available for matching beacons 1397 * 1398 * @return true if there are hw entries available for matching beacons 1399 * @hide 1400 */ 1401 public boolean isHardwareTrackingFiltersAvailable() { 1402 if (!getLeAccess()) return false; 1403 try { 1404 IBluetoothGatt iGatt = mManagerService.getBluetoothGatt(); 1405 if (iGatt == null) { 1406 // BLE is not supported 1407 return false; 1408 } 1409 return (iGatt.numHwTrackFiltersAvailable() != 0); 1410 } catch (RemoteException e) { 1411 Log.e(TAG, "", e); 1412 } 1413 return false; 1414 } 1415 1416 /** 1417 * Return the record of {@link BluetoothActivityEnergyInfo} object that 1418 * has the activity and energy info. This can be used to ascertain what 1419 * the controller has been up to, since the last sample. 1420 * @param updateType Type of info, cached vs refreshed. 1421 * 1422 * @return a record with {@link BluetoothActivityEnergyInfo} or null if 1423 * report is unavailable or unsupported 1424 * @deprecated use the asynchronous 1425 * {@link #requestControllerActivityEnergyInfo(ResultReceiver)} instead. 1426 * @hide 1427 */ 1428 @Deprecated 1429 public BluetoothActivityEnergyInfo getControllerActivityEnergyInfo(int updateType) { 1430 SynchronousResultReceiver receiver = new SynchronousResultReceiver(); 1431 requestControllerActivityEnergyInfo(receiver); 1432 try { 1433 SynchronousResultReceiver.Result result = receiver.awaitResult(1000); 1434 if (result.bundle != null) { 1435 return result.bundle.getParcelable(BatteryStats.RESULT_RECEIVER_CONTROLLER_KEY); 1436 } 1437 } catch (TimeoutException e) { 1438 Log.e(TAG, "getControllerActivityEnergyInfo timed out"); 1439 } 1440 return null; 1441 } 1442 1443 /** 1444 * Request the record of {@link BluetoothActivityEnergyInfo} object that 1445 * has the activity and energy info. This can be used to ascertain what 1446 * the controller has been up to, since the last sample. 1447 * 1448 * A null value for the activity info object may be sent if the bluetooth service is 1449 * unreachable or the device does not support reporting such information. 1450 * 1451 * @param result The callback to which to send the activity info. 1452 * @hide 1453 */ 1454 public void requestControllerActivityEnergyInfo(ResultReceiver result) { 1455 try { 1456 mServiceLock.readLock().lock(); 1457 if (mService != null) { 1458 mService.requestActivityInfo(result); 1459 result = null; 1460 } 1461 } catch (RemoteException e) { 1462 Log.e(TAG, "getControllerActivityEnergyInfoCallback: " + e); 1463 } finally { 1464 mServiceLock.readLock().unlock(); 1465 if (result != null) { 1466 // Only send an immediate result if we failed. 1467 result.send(0, null); 1468 } 1469 } 1470 } 1471 1472 /** 1473 * Return the set of {@link BluetoothDevice} objects that are bonded 1474 * (paired) to the local adapter. 1475 * <p>If Bluetooth state is not {@link #STATE_ON}, this API 1476 * will return an empty set. After turning on Bluetooth, 1477 * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} 1478 * to get the updated value. 1479 * <p>Requires {@link android.Manifest.permission#BLUETOOTH}. 1480 * 1481 * @return unmodifiable set of {@link BluetoothDevice}, or null on error 1482 */ 1483 @RequiresPermission(Manifest.permission.BLUETOOTH) 1484 public Set<BluetoothDevice> getBondedDevices() { 1485 if (getState() != STATE_ON) { 1486 return toDeviceSet(new BluetoothDevice[0]); 1487 } 1488 try { 1489 mServiceLock.readLock().lock(); 1490 if (mService != null) return toDeviceSet(mService.getBondedDevices()); 1491 return toDeviceSet(new BluetoothDevice[0]); 1492 } catch (RemoteException e) { 1493 Log.e(TAG, "", e); 1494 } finally { 1495 mServiceLock.readLock().unlock(); 1496 } 1497 return null; 1498 } 1499 1500 /** 1501 * Get the current connection state of the local Bluetooth adapter. 1502 * This can be used to check whether the local Bluetooth adapter is connected 1503 * to any profile of any other remote Bluetooth Device. 1504 * 1505 * <p> Use this function along with {@link #ACTION_CONNECTION_STATE_CHANGED} 1506 * intent to get the connection state of the adapter. 1507 * 1508 * @return One of {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTED}, 1509 * {@link #STATE_CONNECTING} or {@link #STATE_DISCONNECTED} 1510 * 1511 * @hide 1512 */ 1513 public int getConnectionState() { 1514 if (getState() != STATE_ON) return BluetoothAdapter.STATE_DISCONNECTED; 1515 try { 1516 mServiceLock.readLock().lock(); 1517 if (mService != null) return mService.getAdapterConnectionState(); 1518 } catch (RemoteException e) { 1519 Log.e(TAG, "getConnectionState:", e); 1520 } finally { 1521 mServiceLock.readLock().unlock(); 1522 } 1523 return BluetoothAdapter.STATE_DISCONNECTED; 1524 } 1525 1526 /** 1527 * Get the current connection state of a profile. 1528 * This function can be used to check whether the local Bluetooth adapter 1529 * is connected to any remote device for a specific profile. 1530 * Profile can be one of {@link BluetoothProfile#HEALTH}, {@link BluetoothProfile#HEADSET}, 1531 * {@link BluetoothProfile#A2DP}. 1532 * 1533 * <p>Requires {@link android.Manifest.permission#BLUETOOTH}. 1534 * 1535 * <p> Return value can be one of 1536 * {@link BluetoothProfile#STATE_DISCONNECTED}, 1537 * {@link BluetoothProfile#STATE_CONNECTING}, 1538 * {@link BluetoothProfile#STATE_CONNECTED}, 1539 * {@link BluetoothProfile#STATE_DISCONNECTING} 1540 */ 1541 @RequiresPermission(Manifest.permission.BLUETOOTH) 1542 public int getProfileConnectionState(int profile) { 1543 if (getState() != STATE_ON) return BluetoothProfile.STATE_DISCONNECTED; 1544 try { 1545 mServiceLock.readLock().lock(); 1546 if (mService != null) return mService.getProfileConnectionState(profile); 1547 } catch (RemoteException e) { 1548 Log.e(TAG, "getProfileConnectionState:", e); 1549 } finally { 1550 mServiceLock.readLock().unlock(); 1551 } 1552 return BluetoothProfile.STATE_DISCONNECTED; 1553 } 1554 1555 /** 1556 * Create a listening, secure RFCOMM Bluetooth socket. 1557 * <p>A remote device connecting to this socket will be authenticated and 1558 * communication on this socket will be encrypted. 1559 * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming 1560 * connections from a listening {@link BluetoothServerSocket}. 1561 * <p>Valid RFCOMM channels are in range 1 to 30. 1562 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} 1563 * @param channel RFCOMM channel to listen on 1564 * @return a listening RFCOMM BluetoothServerSocket 1565 * @throws IOException on error, for example Bluetooth not available, or 1566 * insufficient permissions, or channel in use. 1567 * @hide 1568 */ 1569 public BluetoothServerSocket listenUsingRfcommOn(int channel) throws IOException { 1570 return listenUsingRfcommOn(channel, false, false); 1571 } 1572 1573 /** 1574 * Create a listening, secure RFCOMM Bluetooth socket. 1575 * <p>A remote device connecting to this socket will be authenticated and 1576 * communication on this socket will be encrypted. 1577 * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming 1578 * connections from a listening {@link BluetoothServerSocket}. 1579 * <p>Valid RFCOMM channels are in range 1 to 30. 1580 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} 1581 * <p>To auto assign a channel without creating a SDP record use 1582 * {@link SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as channel number. 1583 * @param channel RFCOMM channel to listen on 1584 * @param mitm enforce man-in-the-middle protection for authentication. 1585 * @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2 connections. 1586 * @return a listening RFCOMM BluetoothServerSocket 1587 * @throws IOException on error, for example Bluetooth not available, or 1588 * insufficient permissions, or channel in use. 1589 * @hide 1590 */ 1591 public BluetoothServerSocket listenUsingRfcommOn(int channel, boolean mitm, 1592 boolean min16DigitPin) 1593 throws IOException { 1594 BluetoothServerSocket socket = new BluetoothServerSocket( 1595 BluetoothSocket.TYPE_RFCOMM, true, true, channel, mitm, min16DigitPin); 1596 int errno = socket.mSocket.bindListen(); 1597 if (channel == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { 1598 socket.setChannel(socket.mSocket.getPort()); 1599 } 1600 if (errno != 0) { 1601 //TODO(BT): Throw the same exception error code 1602 // that the previous code was using. 1603 //socket.mSocket.throwErrnoNative(errno); 1604 throw new IOException("Error: " + errno); 1605 } 1606 return socket; 1607 } 1608 1609 /** 1610 * Create a listening, secure RFCOMM Bluetooth socket with Service Record. 1611 * <p>A remote device connecting to this socket will be authenticated and 1612 * communication on this socket will be encrypted. 1613 * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming 1614 * connections from a listening {@link BluetoothServerSocket}. 1615 * <p>The system will assign an unused RFCOMM channel to listen on. 1616 * <p>The system will also register a Service Discovery 1617 * Protocol (SDP) record with the local SDP server containing the specified 1618 * UUID, service name, and auto-assigned channel. Remote Bluetooth devices 1619 * can use the same UUID to query our SDP server and discover which channel 1620 * to connect to. This SDP record will be removed when this socket is 1621 * closed, or if this application closes unexpectedly. 1622 * <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to 1623 * connect to this socket from another device using the same {@link UUID}. 1624 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 1625 * @param name service name for SDP record 1626 * @param uuid uuid for SDP record 1627 * @return a listening RFCOMM BluetoothServerSocket 1628 * @throws IOException on error, for example Bluetooth not available, or 1629 * insufficient permissions, or channel in use. 1630 */ 1631 @RequiresPermission(Manifest.permission.BLUETOOTH) 1632 public BluetoothServerSocket listenUsingRfcommWithServiceRecord(String name, UUID uuid) 1633 throws IOException { 1634 return createNewRfcommSocketAndRecord(name, uuid, true, true); 1635 } 1636 1637 /** 1638 * Create a listening, insecure RFCOMM Bluetooth socket with Service Record. 1639 * <p>The link key is not required to be authenticated, i.e the communication may be 1640 * vulnerable to Man In the Middle attacks. For Bluetooth 2.1 devices, 1641 * the link will be encrypted, as encryption is mandartory. 1642 * For legacy devices (pre Bluetooth 2.1 devices) the link will not 1643 * be encrypted. Use {@link #listenUsingRfcommWithServiceRecord}, if an 1644 * encrypted and authenticated communication channel is desired. 1645 * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming 1646 * connections from a listening {@link BluetoothServerSocket}. 1647 * <p>The system will assign an unused RFCOMM channel to listen on. 1648 * <p>The system will also register a Service Discovery 1649 * Protocol (SDP) record with the local SDP server containing the specified 1650 * UUID, service name, and auto-assigned channel. Remote Bluetooth devices 1651 * can use the same UUID to query our SDP server and discover which channel 1652 * to connect to. This SDP record will be removed when this socket is 1653 * closed, or if this application closes unexpectedly. 1654 * <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to 1655 * connect to this socket from another device using the same {@link UUID}. 1656 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 1657 * @param name service name for SDP record 1658 * @param uuid uuid for SDP record 1659 * @return a listening RFCOMM BluetoothServerSocket 1660 * @throws IOException on error, for example Bluetooth not available, or 1661 * insufficient permissions, or channel in use. 1662 */ 1663 @RequiresPermission(Manifest.permission.BLUETOOTH) 1664 public BluetoothServerSocket listenUsingInsecureRfcommWithServiceRecord(String name, UUID uuid) 1665 throws IOException { 1666 return createNewRfcommSocketAndRecord(name, uuid, false, false); 1667 } 1668 1669 /** 1670 * Create a listening, encrypted, 1671 * RFCOMM Bluetooth socket with Service Record. 1672 * <p>The link will be encrypted, but the link key is not required to be authenticated 1673 * i.e the communication is vulnerable to Man In the Middle attacks. Use 1674 * {@link #listenUsingRfcommWithServiceRecord}, to ensure an authenticated link key. 1675 * <p> Use this socket if authentication of link key is not possible. 1676 * For example, for Bluetooth 2.1 devices, if any of the devices does not have 1677 * an input and output capability or just has the ability to display a numeric key, 1678 * a secure socket connection is not possible and this socket can be used. 1679 * Use {@link #listenUsingInsecureRfcommWithServiceRecord}, if encryption is not required. 1680 * For Bluetooth 2.1 devices, the link will be encrypted, as encryption is mandartory. 1681 * For more details, refer to the Security Model section 5.2 (vol 3) of 1682 * Bluetooth Core Specification version 2.1 + EDR. 1683 * <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming 1684 * connections from a listening {@link BluetoothServerSocket}. 1685 * <p>The system will assign an unused RFCOMM channel to listen on. 1686 * <p>The system will also register a Service Discovery 1687 * Protocol (SDP) record with the local SDP server containing the specified 1688 * UUID, service name, and auto-assigned channel. Remote Bluetooth devices 1689 * can use the same UUID to query our SDP server and discover which channel 1690 * to connect to. This SDP record will be removed when this socket is 1691 * closed, or if this application closes unexpectedly. 1692 * <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to 1693 * connect to this socket from another device using the same {@link UUID}. 1694 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 1695 * @param name service name for SDP record 1696 * @param uuid uuid for SDP record 1697 * @return a listening RFCOMM BluetoothServerSocket 1698 * @throws IOException on error, for example Bluetooth not available, or 1699 * insufficient permissions, or channel in use. 1700 * @hide 1701 */ 1702 public BluetoothServerSocket listenUsingEncryptedRfcommWithServiceRecord( 1703 String name, UUID uuid) throws IOException { 1704 return createNewRfcommSocketAndRecord(name, uuid, false, true); 1705 } 1706 1707 1708 private BluetoothServerSocket createNewRfcommSocketAndRecord(String name, UUID uuid, 1709 boolean auth, boolean encrypt) throws IOException { 1710 BluetoothServerSocket socket; 1711 socket = new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, auth, 1712 encrypt, new ParcelUuid(uuid)); 1713 socket.setServiceName(name); 1714 int errno = socket.mSocket.bindListen(); 1715 if (errno != 0) { 1716 //TODO(BT): Throw the same exception error code 1717 // that the previous code was using. 1718 //socket.mSocket.throwErrnoNative(errno); 1719 throw new IOException("Error: " + errno); 1720 } 1721 return socket; 1722 } 1723 1724 /** 1725 * Construct an unencrypted, unauthenticated, RFCOMM server socket. 1726 * Call #accept to retrieve connections to this socket. 1727 * @return An RFCOMM BluetoothServerSocket 1728 * @throws IOException On error, for example Bluetooth not available, or 1729 * insufficient permissions. 1730 * @hide 1731 */ 1732 public BluetoothServerSocket listenUsingInsecureRfcommOn(int port) throws IOException { 1733 BluetoothServerSocket socket = new BluetoothServerSocket( 1734 BluetoothSocket.TYPE_RFCOMM, false, false, port); 1735 int errno = socket.mSocket.bindListen(); 1736 if(port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { 1737 socket.setChannel(socket.mSocket.getPort()); 1738 } 1739 if (errno != 0) { 1740 //TODO(BT): Throw the same exception error code 1741 // that the previous code was using. 1742 //socket.mSocket.throwErrnoNative(errno); 1743 throw new IOException("Error: " + errno); 1744 } 1745 return socket; 1746 } 1747 1748 /** 1749 * Construct an encrypted, RFCOMM server socket. 1750 * Call #accept to retrieve connections to this socket. 1751 * @return An RFCOMM BluetoothServerSocket 1752 * @throws IOException On error, for example Bluetooth not available, or 1753 * insufficient permissions. 1754 * @hide 1755 */ 1756 public BluetoothServerSocket listenUsingEncryptedRfcommOn(int port) 1757 throws IOException { 1758 BluetoothServerSocket socket = new BluetoothServerSocket( 1759 BluetoothSocket.TYPE_RFCOMM, false, true, port); 1760 int errno = socket.mSocket.bindListen(); 1761 if(port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { 1762 socket.setChannel(socket.mSocket.getPort()); 1763 } 1764 if (errno < 0) { 1765 //TODO(BT): Throw the same exception error code 1766 // that the previous code was using. 1767 //socket.mSocket.throwErrnoNative(errno); 1768 throw new IOException("Error: " + errno); 1769 } 1770 return socket; 1771 } 1772 1773 /** 1774 * Construct a SCO server socket. 1775 * Call #accept to retrieve connections to this socket. 1776 * @return A SCO BluetoothServerSocket 1777 * @throws IOException On error, for example Bluetooth not available, or 1778 * insufficient permissions. 1779 * @hide 1780 */ 1781 public static BluetoothServerSocket listenUsingScoOn() throws IOException { 1782 BluetoothServerSocket socket = new BluetoothServerSocket( 1783 BluetoothSocket.TYPE_SCO, false, false, -1); 1784 int errno = socket.mSocket.bindListen(); 1785 if (errno < 0) { 1786 //TODO(BT): Throw the same exception error code 1787 // that the previous code was using. 1788 //socket.mSocket.throwErrnoNative(errno); 1789 } 1790 return socket; 1791 } 1792 1793 /** 1794 * Construct an encrypted, authenticated, L2CAP server socket. 1795 * Call #accept to retrieve connections to this socket. 1796 * <p>To auto assign a port without creating a SDP record use 1797 * {@link SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number. 1798 * @param port the PSM to listen on 1799 * @param mitm enforce man-in-the-middle protection for authentication. 1800 * @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2 connections. 1801 * @return An L2CAP BluetoothServerSocket 1802 * @throws IOException On error, for example Bluetooth not available, or 1803 * insufficient permissions. 1804 * @hide 1805 */ 1806 public BluetoothServerSocket listenUsingL2capOn(int port, boolean mitm, boolean min16DigitPin) 1807 throws IOException { 1808 BluetoothServerSocket socket = new BluetoothServerSocket( 1809 BluetoothSocket.TYPE_L2CAP, true, true, port, mitm, min16DigitPin); 1810 int errno = socket.mSocket.bindListen(); 1811 if(port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { 1812 socket.setChannel(socket.mSocket.getPort()); 1813 } 1814 if (errno != 0) { 1815 //TODO(BT): Throw the same exception error code 1816 // that the previous code was using. 1817 //socket.mSocket.throwErrnoNative(errno); 1818 throw new IOException("Error: " + errno); 1819 } 1820 return socket; 1821 } 1822 1823 /** 1824 * Construct an encrypted, authenticated, L2CAP server socket. 1825 * Call #accept to retrieve connections to this socket. 1826 * <p>To auto assign a port without creating a SDP record use 1827 * {@link SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number. 1828 * @param port the PSM to listen on 1829 * @return An L2CAP BluetoothServerSocket 1830 * @throws IOException On error, for example Bluetooth not available, or 1831 * insufficient permissions. 1832 * @hide 1833 */ 1834 public BluetoothServerSocket listenUsingL2capOn(int port) throws IOException { 1835 return listenUsingL2capOn(port, false, false); 1836 } 1837 1838 /** 1839 * Read the local Out of Band Pairing Data 1840 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 1841 * 1842 * @return Pair<byte[], byte[]> of Hash and Randomizer 1843 * 1844 * @hide 1845 */ 1846 public Pair<byte[], byte[]> readOutOfBandData() { 1847 if (getState() != STATE_ON) return null; 1848 //TODO(BT 1849 /* 1850 try { 1851 byte[] hash; 1852 byte[] randomizer; 1853 1854 byte[] ret = null; 1855 mServiceLock.readLock().lock(); 1856 if (mService != null) mService.readOutOfBandData(); 1857 1858 if (ret == null || ret.length != 32) return null; 1859 1860 hash = Arrays.copyOfRange(ret, 0, 16); 1861 randomizer = Arrays.copyOfRange(ret, 16, 32); 1862 1863 if (DBG) { 1864 Log.d(TAG, "readOutOfBandData:" + Arrays.toString(hash) + 1865 ":" + Arrays.toString(randomizer)); 1866 } 1867 return new Pair<byte[], byte[]>(hash, randomizer); 1868 1869 } catch (RemoteException e) { 1870 Log.e(TAG, "", e); 1871 } finally { 1872 mServiceLock.readLock().unlock(); 1873 } 1874 */ 1875 return null; 1876 } 1877 1878 /** 1879 * Get the profile proxy object associated with the profile. 1880 * 1881 * <p>Profile can be one of {@link BluetoothProfile#HEALTH}, {@link BluetoothProfile#HEADSET}, 1882 * {@link BluetoothProfile#A2DP}, {@link BluetoothProfile#GATT}, or 1883 * {@link BluetoothProfile#GATT_SERVER}. Clients must implement 1884 * {@link BluetoothProfile.ServiceListener} to get notified of 1885 * the connection status and to get the proxy object. 1886 * 1887 * @param context Context of the application 1888 * @param listener The service Listener for connection callbacks. 1889 * @param profile The Bluetooth profile; either {@link BluetoothProfile#HEALTH}, 1890 * {@link BluetoothProfile#HEADSET}, {@link BluetoothProfile#A2DP}. 1891 * {@link BluetoothProfile#GATT} or {@link BluetoothProfile#GATT_SERVER}. 1892 * @return true on success, false on error 1893 */ 1894 public boolean getProfileProxy(Context context, BluetoothProfile.ServiceListener listener, 1895 int profile) { 1896 if (context == null || listener == null) return false; 1897 1898 if (profile == BluetoothProfile.HEADSET) { 1899 BluetoothHeadset headset = new BluetoothHeadset(context, listener); 1900 return true; 1901 } else if (profile == BluetoothProfile.A2DP) { 1902 BluetoothA2dp a2dp = new BluetoothA2dp(context, listener); 1903 return true; 1904 } else if (profile == BluetoothProfile.A2DP_SINK) { 1905 BluetoothA2dpSink a2dpSink = new BluetoothA2dpSink(context, listener); 1906 return true; 1907 } else if (profile == BluetoothProfile.AVRCP_CONTROLLER) { 1908 BluetoothAvrcpController avrcp = new BluetoothAvrcpController(context, listener); 1909 return true; 1910 } else if (profile == BluetoothProfile.INPUT_DEVICE) { 1911 BluetoothInputDevice iDev = new BluetoothInputDevice(context, listener); 1912 return true; 1913 } else if (profile == BluetoothProfile.PAN) { 1914 BluetoothPan pan = new BluetoothPan(context, listener); 1915 return true; 1916 } else if (profile == BluetoothProfile.HEALTH) { 1917 BluetoothHealth health = new BluetoothHealth(context, listener); 1918 return true; 1919 } else if (profile == BluetoothProfile.MAP) { 1920 BluetoothMap map = new BluetoothMap(context, listener); 1921 return true; 1922 } else if (profile == BluetoothProfile.HEADSET_CLIENT) { 1923 BluetoothHeadsetClient headsetClient = new BluetoothHeadsetClient(context, listener); 1924 return true; 1925 } else if (profile == BluetoothProfile.SAP) { 1926 BluetoothSap sap = new BluetoothSap(context, listener); 1927 return true; 1928 } else if (profile == BluetoothProfile.PBAP_CLIENT) { 1929 BluetoothPbapClient pbapClient = new BluetoothPbapClient(context, listener); 1930 return true; 1931 } else { 1932 return false; 1933 } 1934 } 1935 1936 /** 1937 * Close the connection of the profile proxy to the Service. 1938 * 1939 * <p> Clients should call this when they are no longer using 1940 * the proxy obtained from {@link #getProfileProxy}. 1941 * Profile can be one of {@link BluetoothProfile#HEALTH}, {@link BluetoothProfile#HEADSET} or 1942 * {@link BluetoothProfile#A2DP} 1943 * 1944 * @param profile 1945 * @param proxy Profile proxy object 1946 */ 1947 public void closeProfileProxy(int profile, BluetoothProfile proxy) { 1948 if (proxy == null) return; 1949 1950 switch (profile) { 1951 case BluetoothProfile.HEADSET: 1952 BluetoothHeadset headset = (BluetoothHeadset)proxy; 1953 headset.close(); 1954 break; 1955 case BluetoothProfile.A2DP: 1956 BluetoothA2dp a2dp = (BluetoothA2dp)proxy; 1957 a2dp.close(); 1958 break; 1959 case BluetoothProfile.A2DP_SINK: 1960 BluetoothA2dpSink a2dpSink = (BluetoothA2dpSink)proxy; 1961 a2dpSink.close(); 1962 break; 1963 case BluetoothProfile.AVRCP_CONTROLLER: 1964 BluetoothAvrcpController avrcp = (BluetoothAvrcpController)proxy; 1965 avrcp.close(); 1966 break; 1967 case BluetoothProfile.INPUT_DEVICE: 1968 BluetoothInputDevice iDev = (BluetoothInputDevice)proxy; 1969 iDev.close(); 1970 break; 1971 case BluetoothProfile.PAN: 1972 BluetoothPan pan = (BluetoothPan)proxy; 1973 pan.close(); 1974 break; 1975 case BluetoothProfile.HEALTH: 1976 BluetoothHealth health = (BluetoothHealth)proxy; 1977 health.close(); 1978 break; 1979 case BluetoothProfile.GATT: 1980 BluetoothGatt gatt = (BluetoothGatt)proxy; 1981 gatt.close(); 1982 break; 1983 case BluetoothProfile.GATT_SERVER: 1984 BluetoothGattServer gattServer = (BluetoothGattServer)proxy; 1985 gattServer.close(); 1986 break; 1987 case BluetoothProfile.MAP: 1988 BluetoothMap map = (BluetoothMap)proxy; 1989 map.close(); 1990 break; 1991 case BluetoothProfile.HEADSET_CLIENT: 1992 BluetoothHeadsetClient headsetClient = (BluetoothHeadsetClient)proxy; 1993 headsetClient.close(); 1994 break; 1995 case BluetoothProfile.SAP: 1996 BluetoothSap sap = (BluetoothSap)proxy; 1997 sap.close(); 1998 break; 1999 case BluetoothProfile.PBAP_CLIENT: 2000 BluetoothPbapClient pbapClient = (BluetoothPbapClient)proxy; 2001 pbapClient.close(); 2002 break; 2003 } 2004 } 2005 2006 final private IBluetoothManagerCallback mManagerCallback = 2007 new IBluetoothManagerCallback.Stub() { 2008 public void onBluetoothServiceUp(IBluetooth bluetoothService) { 2009 if (VDBG) Log.d(TAG, "onBluetoothServiceUp: " + bluetoothService); 2010 2011 mServiceLock.writeLock().lock(); 2012 mService = bluetoothService; 2013 mServiceLock.writeLock().unlock(); 2014 2015 synchronized (mProxyServiceStateCallbacks) { 2016 for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks ) { 2017 try { 2018 if (cb != null) { 2019 cb.onBluetoothServiceUp(bluetoothService); 2020 } else { 2021 Log.d(TAG, "onBluetoothServiceUp: cb is null!!!"); 2022 } 2023 } catch (Exception e) { 2024 Log.e(TAG,"",e); 2025 } 2026 } 2027 } 2028 } 2029 2030 public void onBluetoothServiceDown() { 2031 if (VDBG) Log.d(TAG, "onBluetoothServiceDown: " + mService); 2032 2033 try { 2034 mServiceLock.writeLock().lock(); 2035 mService = null; 2036 if (mLeScanClients != null) mLeScanClients.clear(); 2037 if (sBluetoothLeAdvertiser != null) sBluetoothLeAdvertiser.cleanup(); 2038 if (sBluetoothLeScanner != null) sBluetoothLeScanner.cleanup(); 2039 } finally { 2040 mServiceLock.writeLock().unlock(); 2041 } 2042 2043 synchronized (mProxyServiceStateCallbacks) { 2044 for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks ){ 2045 try { 2046 if (cb != null) { 2047 cb.onBluetoothServiceDown(); 2048 } else { 2049 Log.d(TAG, "onBluetoothServiceDown: cb is null!!!"); 2050 } 2051 } catch (Exception e) { 2052 Log.e(TAG,"",e); 2053 } 2054 } 2055 } 2056 } 2057 2058 public void onBrEdrDown() { 2059 if (VDBG) Log.i(TAG, "on QBrEdrDown: "); 2060 } 2061 }; 2062 2063 /** 2064 * Enable the Bluetooth Adapter, but don't auto-connect devices 2065 * and don't persist state. Only for use by system applications. 2066 * @hide 2067 */ 2068 public boolean enableNoAutoConnect() { 2069 if (isEnabled() == true){ 2070 if (DBG) Log.d(TAG, "enableNoAutoConnect(): BT is already enabled..!"); 2071 return true; 2072 } 2073 try { 2074 return mManagerService.enableNoAutoConnect(); 2075 } catch (RemoteException e) {Log.e(TAG, "", e);} 2076 return false; 2077 } 2078 2079 /** 2080 * Enable control of the Bluetooth Adapter for a single application. 2081 * 2082 * <p>Some applications need to use Bluetooth for short periods of time to 2083 * transfer data but don't want all the associated implications like 2084 * automatic connection to headsets etc. 2085 * 2086 * <p> Multiple applications can call this. This is reference counted and 2087 * Bluetooth disabled only when no one else is using it. There will be no UI 2088 * shown to the user while bluetooth is being enabled. Any user action will 2089 * override this call. For example, if user wants Bluetooth on and the last 2090 * user of this API wanted to disable Bluetooth, Bluetooth will not be 2091 * turned off. 2092 * 2093 * <p> This API is only meant to be used by internal applications. Third 2094 * party applications but use {@link #enable} and {@link #disable} APIs. 2095 * 2096 * <p> If this API returns true, it means the callback will be called. 2097 * The callback will be called with the current state of Bluetooth. 2098 * If the state is not what was requested, an internal error would be the 2099 * reason. If Bluetooth is already on and if this function is called to turn 2100 * it on, the api will return true and a callback will be called. 2101 * 2102 * <p>Requires {@link android.Manifest.permission#BLUETOOTH} 2103 * 2104 * @param on True for on, false for off. 2105 * @param callback The callback to notify changes to the state. 2106 * @hide 2107 */ 2108 public boolean changeApplicationBluetoothState(boolean on, 2109 BluetoothStateChangeCallback callback) { 2110 if (callback == null) return false; 2111 2112 //TODO(BT) 2113 /* 2114 try { 2115 mServiceLock.readLock().lock(); 2116 if (mService != null) { 2117 return mService.changeApplicationBluetoothState(on, new 2118 StateChangeCallbackWrapper(callback), new Binder()); 2119 } 2120 } catch (RemoteException e) { 2121 Log.e(TAG, "changeBluetoothState", e); 2122 } finally { 2123 mServiceLock.readLock().unlock(); 2124 } 2125 */ 2126 return false; 2127 } 2128 2129 /** 2130 * @hide 2131 */ 2132 public interface BluetoothStateChangeCallback { 2133 public void onBluetoothStateChange(boolean on); 2134 } 2135 2136 /** 2137 * @hide 2138 */ 2139 public class StateChangeCallbackWrapper extends IBluetoothStateChangeCallback.Stub { 2140 private BluetoothStateChangeCallback mCallback; 2141 2142 StateChangeCallbackWrapper(BluetoothStateChangeCallback 2143 callback) { 2144 mCallback = callback; 2145 } 2146 2147 @Override 2148 public void onBluetoothStateChange(boolean on) { 2149 mCallback.onBluetoothStateChange(on); 2150 } 2151 } 2152 2153 private Set<BluetoothDevice> toDeviceSet(BluetoothDevice[] devices) { 2154 Set<BluetoothDevice> deviceSet = new HashSet<BluetoothDevice>(Arrays.asList(devices)); 2155 return Collections.unmodifiableSet(deviceSet); 2156 } 2157 2158 protected void finalize() throws Throwable { 2159 try { 2160 mManagerService.unregisterAdapter(mManagerCallback); 2161 } catch (RemoteException e) { 2162 Log.e(TAG, "", e); 2163 } finally { 2164 super.finalize(); 2165 } 2166 } 2167 2168 2169 /** 2170 * Validate a String Bluetooth address, such as "00:43:A8:23:10:F0" 2171 * <p>Alphabetic characters must be uppercase to be valid. 2172 * 2173 * @param address Bluetooth address as string 2174 * @return true if the address is valid, false otherwise 2175 */ 2176 public static boolean checkBluetoothAddress(String address) { 2177 if (address == null || address.length() != ADDRESS_LENGTH) { 2178 return false; 2179 } 2180 for (int i = 0; i < ADDRESS_LENGTH; i++) { 2181 char c = address.charAt(i); 2182 switch (i % 3) { 2183 case 0: 2184 case 1: 2185 if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F')) { 2186 // hex character, OK 2187 break; 2188 } 2189 return false; 2190 case 2: 2191 if (c == ':') { 2192 break; // OK 2193 } 2194 return false; 2195 } 2196 } 2197 return true; 2198 } 2199 2200 /*package*/ IBluetoothManager getBluetoothManager() { 2201 return mManagerService; 2202 } 2203 2204 final private ArrayList<IBluetoothManagerCallback> mProxyServiceStateCallbacks = new ArrayList<IBluetoothManagerCallback>(); 2205 2206 /*package*/ IBluetooth getBluetoothService(IBluetoothManagerCallback cb) { 2207 synchronized (mProxyServiceStateCallbacks) { 2208 if (cb == null) { 2209 Log.w(TAG, "getBluetoothService() called with no BluetoothManagerCallback"); 2210 } else if (!mProxyServiceStateCallbacks.contains(cb)) { 2211 mProxyServiceStateCallbacks.add(cb); 2212 } 2213 } 2214 return mService; 2215 } 2216 2217 /*package*/ void removeServiceStateCallback(IBluetoothManagerCallback cb) { 2218 synchronized (mProxyServiceStateCallbacks) { 2219 mProxyServiceStateCallbacks.remove(cb); 2220 } 2221 } 2222 2223 /** 2224 * Callback interface used to deliver LE scan results. 2225 * 2226 * @see #startLeScan(LeScanCallback) 2227 * @see #startLeScan(UUID[], LeScanCallback) 2228 */ 2229 public interface LeScanCallback { 2230 /** 2231 * Callback reporting an LE device found during a device scan initiated 2232 * by the {@link BluetoothAdapter#startLeScan} function. 2233 * 2234 * @param device Identifies the remote device 2235 * @param rssi The RSSI value for the remote device as reported by the 2236 * Bluetooth hardware. 0 if no RSSI value is available. 2237 * @param scanRecord The content of the advertisement record offered by 2238 * the remote device. 2239 */ 2240 public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord); 2241 } 2242 2243 /** 2244 * Starts a scan for Bluetooth LE devices. 2245 * 2246 * <p>Results of the scan are reported using the 2247 * {@link LeScanCallback#onLeScan} callback. 2248 * 2249 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. 2250 * 2251 * @param callback the callback LE scan results are delivered 2252 * @return true, if the scan was started successfully 2253 * @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)} 2254 * instead. 2255 */ 2256 @Deprecated 2257 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 2258 public boolean startLeScan(LeScanCallback callback) { 2259 return startLeScan(null, callback); 2260 } 2261 2262 /** 2263 * Starts a scan for Bluetooth LE devices, looking for devices that 2264 * advertise given services. 2265 * 2266 * <p>Devices which advertise all specified services are reported using the 2267 * {@link LeScanCallback#onLeScan} callback. 2268 * 2269 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. 2270 * 2271 * @param serviceUuids Array of services to look for 2272 * @param callback the callback LE scan results are delivered 2273 * @return true, if the scan was started successfully 2274 * @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)} 2275 * instead. 2276 */ 2277 @Deprecated 2278 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 2279 public boolean startLeScan(final UUID[] serviceUuids, final LeScanCallback callback) { 2280 if (DBG) Log.d(TAG, "startLeScan(): " + Arrays.toString(serviceUuids)); 2281 if (callback == null) { 2282 if (DBG) Log.e(TAG, "startLeScan: null callback"); 2283 return false; 2284 } 2285 BluetoothLeScanner scanner = getBluetoothLeScanner(); 2286 if (scanner == null) { 2287 if (DBG) Log.e(TAG, "startLeScan: cannot get BluetoothLeScanner"); 2288 return false; 2289 } 2290 2291 synchronized(mLeScanClients) { 2292 if (mLeScanClients.containsKey(callback)) { 2293 if (DBG) Log.e(TAG, "LE Scan has already started"); 2294 return false; 2295 } 2296 2297 try { 2298 IBluetoothGatt iGatt = mManagerService.getBluetoothGatt(); 2299 if (iGatt == null) { 2300 // BLE is not supported 2301 return false; 2302 } 2303 2304 ScanCallback scanCallback = new ScanCallback() { 2305 @Override 2306 public void onScanResult(int callbackType, ScanResult result) { 2307 if (callbackType != ScanSettings.CALLBACK_TYPE_ALL_MATCHES) { 2308 // Should not happen. 2309 Log.e(TAG, "LE Scan has already started"); 2310 return; 2311 } 2312 ScanRecord scanRecord = result.getScanRecord(); 2313 if (scanRecord == null) { 2314 return; 2315 } 2316 if (serviceUuids != null) { 2317 List<ParcelUuid> uuids = new ArrayList<ParcelUuid>(); 2318 for (UUID uuid : serviceUuids) { 2319 uuids.add(new ParcelUuid(uuid)); 2320 } 2321 List<ParcelUuid> scanServiceUuids = scanRecord.getServiceUuids(); 2322 if (scanServiceUuids == null || !scanServiceUuids.containsAll(uuids)) { 2323 if (DBG) Log.d(TAG, "uuids does not match"); 2324 return; 2325 } 2326 } 2327 callback.onLeScan(result.getDevice(), result.getRssi(), 2328 scanRecord.getBytes()); 2329 } 2330 }; 2331 ScanSettings settings = new ScanSettings.Builder() 2332 .setCallbackType(ScanSettings.CALLBACK_TYPE_ALL_MATCHES) 2333 .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY).build(); 2334 2335 List<ScanFilter> filters = new ArrayList<ScanFilter>(); 2336 if (serviceUuids != null && serviceUuids.length > 0) { 2337 // Note scan filter does not support matching an UUID array so we put one 2338 // UUID to hardware and match the whole array in callback. 2339 ScanFilter filter = new ScanFilter.Builder().setServiceUuid( 2340 new ParcelUuid(serviceUuids[0])).build(); 2341 filters.add(filter); 2342 } 2343 scanner.startScan(filters, settings, scanCallback); 2344 2345 mLeScanClients.put(callback, scanCallback); 2346 return true; 2347 2348 } catch (RemoteException e) { 2349 Log.e(TAG,"",e); 2350 } 2351 } 2352 return false; 2353 } 2354 2355 /** 2356 * Stops an ongoing Bluetooth LE device scan. 2357 * 2358 * <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. 2359 * 2360 * @param callback used to identify which scan to stop 2361 * must be the same handle used to start the scan 2362 * @deprecated Use {@link BluetoothLeScanner#stopScan(ScanCallback)} instead. 2363 */ 2364 @Deprecated 2365 @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) 2366 public void stopLeScan(LeScanCallback callback) { 2367 if (DBG) Log.d(TAG, "stopLeScan()"); 2368 BluetoothLeScanner scanner = getBluetoothLeScanner(); 2369 if (scanner == null) { 2370 return; 2371 } 2372 synchronized (mLeScanClients) { 2373 ScanCallback scanCallback = mLeScanClients.remove(callback); 2374 if (scanCallback == null) { 2375 if (DBG) Log.d(TAG, "scan not started yet"); 2376 return; 2377 } 2378 scanner.stopScan(scanCallback); 2379 } 2380 } 2381 } 2382
