/* * Copyright (C) 2009-2016 The Android Open Source Project * Copyright (C) 2015 Samsung LSI * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package android.bluetooth; import android.Manifest; import android.annotation.IntDef; import android.annotation.RequiresPermission; import android.annotation.SdkConstant; import android.annotation.SdkConstant.SdkConstantType; import android.annotation.SystemApi; import android.bluetooth.le.BluetoothLeAdvertiser; import android.bluetooth.le.BluetoothLeScanner; import android.bluetooth.le.ScanCallback; import android.bluetooth.le.ScanFilter; import android.bluetooth.le.ScanRecord; import android.bluetooth.le.ScanResult; import android.bluetooth.le.ScanSettings; import android.content.Context; import android.os.BatteryStats; import android.os.Binder; import android.os.IBinder; import android.os.ParcelUuid; import android.os.RemoteException; import android.os.ResultReceiver; import android.os.ServiceManager; import android.os.SynchronousResultReceiver; import android.os.SystemProperties; import android.util.Log; import android.util.Pair; import java.io.IOException; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.HashSet; import java.util.List; import java.util.Locale; import java.util.Map; import java.util.Set; import java.util.UUID; import java.util.concurrent.TimeoutException; import java.util.concurrent.locks.ReentrantReadWriteLock; /** * Represents the local device Bluetooth adapter. The {@link BluetoothAdapter} * lets you perform fundamental Bluetooth tasks, such as initiate * device discovery, query a list of bonded (paired) devices, * instantiate a {@link BluetoothDevice} using a known MAC address, and create * a {@link BluetoothServerSocket} to listen for connection requests from other * devices, and start a scan for Bluetooth LE devices. * *

To get a {@link BluetoothAdapter} representing the local Bluetooth * adapter, when running on JELLY_BEAN_MR1 and below, call the * static {@link #getDefaultAdapter} method; when running on JELLY_BEAN_MR2 and * higher, call {@link BluetoothManager#getAdapter}. * Fundamentally, this is your starting point for all * Bluetooth actions. Once you have the local adapter, you can get a set of * {@link BluetoothDevice} objects representing all paired devices with * {@link #getBondedDevices()}; start device discovery with * {@link #startDiscovery()}; or create a {@link BluetoothServerSocket} to * listen for incoming connection requests with * {@link #listenUsingRfcommWithServiceRecord(String,UUID)}; or start a scan for * Bluetooth LE devices with {@link #startLeScan(LeScanCallback callback)}. * *

This class is thread safe. * *

Note: * Most methods require the {@link android.Manifest.permission#BLUETOOTH} * permission and some also require the * {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. * *

*

Developer Guides

*

For more information about using Bluetooth, read the * Bluetooth developer guide. *

* * {@see BluetoothDevice} * {@see BluetoothServerSocket} */ public final class BluetoothAdapter { private static final String TAG = "BluetoothAdapter"; private static final boolean DBG = true; private static final boolean VDBG = false; /** * Default MAC address reported to a client that does not have the * android.permission.LOCAL_MAC_ADDRESS permission. * * @hide */ public static final String DEFAULT_MAC_ADDRESS = "02:00:00:00:00:00"; /** * Sentinel error value for this class. Guaranteed to not equal any other * integer constant in this class. Provided as a convenience for functions * that require a sentinel error value, for example: *

Intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, * BluetoothAdapter.ERROR) */ public static final int ERROR = Integer.MIN_VALUE; /** * Broadcast Action: The state of the local Bluetooth adapter has been * changed. *

For example, Bluetooth has been turned on or off. *

Always contains the extra fields {@link #EXTRA_STATE} and {@link * #EXTRA_PREVIOUS_STATE} containing the new and old states * respectively. *

Requires {@link android.Manifest.permission#BLUETOOTH} to receive. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_STATE_CHANGED = "android.bluetooth.adapter.action.STATE_CHANGED"; /** * Used as an int extra field in {@link #ACTION_STATE_CHANGED} * intents to request the current power state. Possible values are: * {@link #STATE_OFF}, * {@link #STATE_TURNING_ON}, * {@link #STATE_ON}, * {@link #STATE_TURNING_OFF}, */ public static final String EXTRA_STATE = "android.bluetooth.adapter.extra.STATE"; /** * Used as an int extra field in {@link #ACTION_STATE_CHANGED} * intents to request the previous power state. Possible values are: * {@link #STATE_OFF}, * {@link #STATE_TURNING_ON}, * {@link #STATE_ON}, * {@link #STATE_TURNING_OFF} */ public static final String EXTRA_PREVIOUS_STATE = "android.bluetooth.adapter.extra.PREVIOUS_STATE"; /** @hide */ @IntDef({STATE_OFF, STATE_TURNING_ON, STATE_ON, STATE_TURNING_OFF, STATE_BLE_TURNING_ON, STATE_BLE_ON, STATE_BLE_TURNING_OFF}) @Retention(RetentionPolicy.SOURCE) public @interface AdapterState {} /** * Indicates the local Bluetooth adapter is off. */ public static final int STATE_OFF = 10; /** * Indicates the local Bluetooth adapter is turning on. However local * clients should wait for {@link #STATE_ON} before attempting to * use the adapter. */ public static final int STATE_TURNING_ON = 11; /** * Indicates the local Bluetooth adapter is on, and ready for use. */ public static final int STATE_ON = 12; /** * Indicates the local Bluetooth adapter is turning off. Local clients * should immediately attempt graceful disconnection of any remote links. */ public static final int STATE_TURNING_OFF = 13; /** * Indicates the local Bluetooth adapter is turning Bluetooth LE mode on. * @hide */ public static final int STATE_BLE_TURNING_ON = 14; /** * Indicates the local Bluetooth adapter is in LE only mode. * @hide */ public static final int STATE_BLE_ON = 15; /** * Indicates the local Bluetooth adapter is turning off LE only mode. * @hide */ public static final int STATE_BLE_TURNING_OFF = 16; /** * Activity Action: Show a system activity that requests discoverable mode. * This activity will also request the user to turn on Bluetooth if it * is not currently enabled. *

Discoverable mode is equivalent to {@link * #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. It allows remote devices to see * this Bluetooth adapter when they perform a discovery. *

For privacy, Android is not discoverable by default. *

The sender of this Intent can optionally use extra field {@link * #EXTRA_DISCOVERABLE_DURATION} to request the duration of * discoverability. Currently the default duration is 120 seconds, and * maximum duration is capped at 300 seconds for each request. *

Notification of the result of this activity is posted using the * {@link android.app.Activity#onActivityResult} callback. The * resultCode * will be the duration (in seconds) of discoverability or * {@link android.app.Activity#RESULT_CANCELED} if the user rejected * discoverability or an error has occurred. *

Applications can also listen for {@link #ACTION_SCAN_MODE_CHANGED} * for global notification whenever the scan mode changes. For example, an * application can be notified when the device has ended discoverability. *

Requires {@link android.Manifest.permission#BLUETOOTH} */ @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String ACTION_REQUEST_DISCOVERABLE = "android.bluetooth.adapter.action.REQUEST_DISCOVERABLE"; /** * Used as an optional int extra field in {@link * #ACTION_REQUEST_DISCOVERABLE} intents to request a specific duration * for discoverability in seconds. The current default is 120 seconds, and * requests over 300 seconds will be capped. These values could change. */ public static final String EXTRA_DISCOVERABLE_DURATION = "android.bluetooth.adapter.extra.DISCOVERABLE_DURATION"; /** * Activity Action: Show a system activity that allows the user to turn on * Bluetooth. *

This system activity will return once Bluetooth has completed turning * on, or the user has decided not to turn Bluetooth on. *

Notification of the result of this activity is posted using the * {@link android.app.Activity#onActivityResult} callback. The * resultCode * will be {@link android.app.Activity#RESULT_OK} if Bluetooth has been * turned on or {@link android.app.Activity#RESULT_CANCELED} if the user * has rejected the request or an error has occurred. *

Applications can also listen for {@link #ACTION_STATE_CHANGED} * for global notification whenever Bluetooth is turned on or off. *

Requires {@link android.Manifest.permission#BLUETOOTH} */ @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String ACTION_REQUEST_ENABLE = "android.bluetooth.adapter.action.REQUEST_ENABLE"; /** * Activity Action: Show a system activity that allows user to enable BLE scans even when * Bluetooth is turned off.

* * Notification of result of this activity is posted using * {@link android.app.Activity#onActivityResult}. The resultCode will be * {@link android.app.Activity#RESULT_OK} if BLE scan always available setting is turned on or * {@link android.app.Activity#RESULT_CANCELED} if the user has rejected the request or an * error occurred. * * @hide */ @SystemApi @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION) public static final String ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE = "android.bluetooth.adapter.action.REQUEST_BLE_SCAN_ALWAYS_AVAILABLE"; /** * Broadcast Action: Indicates the Bluetooth scan mode of the local Adapter * has changed. *

Always contains the extra fields {@link #EXTRA_SCAN_MODE} and {@link * #EXTRA_PREVIOUS_SCAN_MODE} containing the new and old scan modes * respectively. *

Requires {@link android.Manifest.permission#BLUETOOTH} */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_SCAN_MODE_CHANGED = "android.bluetooth.adapter.action.SCAN_MODE_CHANGED"; /** * Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED} * intents to request the current scan mode. Possible values are: * {@link #SCAN_MODE_NONE}, * {@link #SCAN_MODE_CONNECTABLE}, * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}, */ public static final String EXTRA_SCAN_MODE = "android.bluetooth.adapter.extra.SCAN_MODE"; /** * Used as an int extra field in {@link #ACTION_SCAN_MODE_CHANGED} * intents to request the previous scan mode. Possible values are: * {@link #SCAN_MODE_NONE}, * {@link #SCAN_MODE_CONNECTABLE}, * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}, */ public static final String EXTRA_PREVIOUS_SCAN_MODE = "android.bluetooth.adapter.extra.PREVIOUS_SCAN_MODE"; /** @hide */ @IntDef({SCAN_MODE_NONE, SCAN_MODE_CONNECTABLE, SCAN_MODE_CONNECTABLE_DISCOVERABLE}) @Retention(RetentionPolicy.SOURCE) public @interface ScanMode {} /** * Indicates that both inquiry scan and page scan are disabled on the local * Bluetooth adapter. Therefore this device is neither discoverable * nor connectable from remote Bluetooth devices. */ public static final int SCAN_MODE_NONE = 20; /** * Indicates that inquiry scan is disabled, but page scan is enabled on the * local Bluetooth adapter. Therefore this device is not discoverable from * remote Bluetooth devices, but is connectable from remote devices that * have previously discovered this device. */ public static final int SCAN_MODE_CONNECTABLE = 21; /** * Indicates that both inquiry scan and page scan are enabled on the local * Bluetooth adapter. Therefore this device is both discoverable and * connectable from remote Bluetooth devices. */ public static final int SCAN_MODE_CONNECTABLE_DISCOVERABLE = 23; /** * Broadcast Action: The local Bluetooth adapter has started the remote * device discovery process. *

This usually involves an inquiry scan of about 12 seconds, followed * by a page scan of each new device to retrieve its Bluetooth name. *

Register for {@link BluetoothDevice#ACTION_FOUND} to be notified as * remote Bluetooth devices are found. *

Device discovery is a heavyweight procedure. New connections to * remote Bluetooth devices should not be attempted while discovery is in * progress, and existing connections will experience limited bandwidth * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing * discovery. *

Requires {@link android.Manifest.permission#BLUETOOTH} to receive. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_DISCOVERY_STARTED = "android.bluetooth.adapter.action.DISCOVERY_STARTED"; /** * Broadcast Action: The local Bluetooth adapter has finished the device * discovery process. *

Requires {@link android.Manifest.permission#BLUETOOTH} to receive. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_DISCOVERY_FINISHED = "android.bluetooth.adapter.action.DISCOVERY_FINISHED"; /** * Broadcast Action: The local Bluetooth adapter has changed its friendly * Bluetooth name. *

This name is visible to remote Bluetooth devices. *

Always contains the extra field {@link #EXTRA_LOCAL_NAME} containing * the name. *

Requires {@link android.Manifest.permission#BLUETOOTH} to receive. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_LOCAL_NAME_CHANGED = "android.bluetooth.adapter.action.LOCAL_NAME_CHANGED"; /** * Used as a String extra field in {@link #ACTION_LOCAL_NAME_CHANGED} * intents to request the local Bluetooth name. */ public static final String EXTRA_LOCAL_NAME = "android.bluetooth.adapter.extra.LOCAL_NAME"; /** * Intent used to broadcast the change in connection state of the local * Bluetooth adapter to a profile of the remote device. When the adapter is * not connected to any profiles of any remote devices and it attempts a * connection to a profile this intent will sent. Once connected, this intent * will not be sent for any more connection attempts to any profiles of any * remote device. When the adapter disconnects from the last profile its * connected to of any remote device, this intent will be sent. * *

This intent is useful for applications that are only concerned about * whether the local adapter is connected to any profile of any device and * are not really concerned about which profile. For example, an application * which displays an icon to display whether Bluetooth is connected or not * can use this intent. * *

This intent will have 3 extras: * {@link #EXTRA_CONNECTION_STATE} - The current connection state. * {@link #EXTRA_PREVIOUS_CONNECTION_STATE}- The previous connection state. * {@link BluetoothDevice#EXTRA_DEVICE} - The remote device. * * {@link #EXTRA_CONNECTION_STATE} or {@link #EXTRA_PREVIOUS_CONNECTION_STATE} * can be any of {@link #STATE_DISCONNECTED}, {@link #STATE_CONNECTING}, * {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTING}. * *

Requires {@link android.Manifest.permission#BLUETOOTH} to receive. */ @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION) public static final String ACTION_CONNECTION_STATE_CHANGED = "android.bluetooth.adapter.action.CONNECTION_STATE_CHANGED"; /** * Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED} * * This extra represents the current connection state. */ public static final String EXTRA_CONNECTION_STATE = "android.bluetooth.adapter.extra.CONNECTION_STATE"; /** * Extra used by {@link #ACTION_CONNECTION_STATE_CHANGED} * * This extra represents the previous connection state. */ public static final String EXTRA_PREVIOUS_CONNECTION_STATE = "android.bluetooth.adapter.extra.PREVIOUS_CONNECTION_STATE"; /** * Broadcast Action: The Bluetooth adapter state has changed in LE only mode. * @hide */ @SystemApi public static final String ACTION_BLE_STATE_CHANGED = "android.bluetooth.adapter.action.BLE_STATE_CHANGED"; /** * Broadcast Action: The notifys Bluetooth ACL connected event. This will be * by BLE Always on enabled application to know the ACL_CONNECTED event * when Bluetooth state in STATE_BLE_ON. This denotes GATT connection * as Bluetooth LE is the only feature available in STATE_BLE_ON * * This is counterpart of {@link BluetoothDevice#ACTION_ACL_CONNECTED} which * works in Bluetooth state STATE_ON * @hide */ public static final String ACTION_BLE_ACL_CONNECTED = "android.bluetooth.adapter.action.BLE_ACL_CONNECTED"; /** * Broadcast Action: The notifys Bluetooth ACL connected event. This will be * by BLE Always on enabled application to know the ACL_DISCONNECTED event * when Bluetooth state in STATE_BLE_ON. This denotes GATT disconnection as Bluetooth * LE is the only feature available in STATE_BLE_ON * * This is counterpart of {@link BluetoothDevice#ACTION_ACL_DISCONNECTED} which * works in Bluetooth state STATE_ON * @hide */ public static final String ACTION_BLE_ACL_DISCONNECTED = "android.bluetooth.adapter.action.BLE_ACL_DISCONNECTED"; /** The profile is in disconnected state */ public static final int STATE_DISCONNECTED = 0; /** The profile is in connecting state */ public static final int STATE_CONNECTING = 1; /** The profile is in connected state */ public static final int STATE_CONNECTED = 2; /** The profile is in disconnecting state */ public static final int STATE_DISCONNECTING = 3; /** @hide */ public static final String BLUETOOTH_MANAGER_SERVICE = "bluetooth_manager"; private final IBinder mToken; /** When creating a ServerSocket using listenUsingRfcommOn() or * listenUsingL2capOn() use SOCKET_CHANNEL_AUTO_STATIC to create * a ServerSocket that auto assigns a channel number to the first * bluetooth socket. * The channel number assigned to this first Bluetooth Socket will * be stored in the ServerSocket, and reused for subsequent Bluetooth * sockets. * @hide */ public static final int SOCKET_CHANNEL_AUTO_STATIC_NO_SDP = -2; private static final int ADDRESS_LENGTH = 17; /** * Lazily initialized singleton. Guaranteed final after first object * constructed. */ private static BluetoothAdapter sAdapter; private static BluetoothLeScanner sBluetoothLeScanner; private static BluetoothLeAdvertiser sBluetoothLeAdvertiser; private final IBluetoothManager mManagerService; private IBluetooth mService; private final ReentrantReadWriteLock mServiceLock = new ReentrantReadWriteLock(); private final Object mLock = new Object(); private final Map mLeScanClients; /** * Get a handle to the default local Bluetooth adapter. *

Currently Android only supports one Bluetooth adapter, but the API * could be extended to support more. This will always return the default * adapter. * @return the default local adapter, or null if Bluetooth is not supported * on this hardware platform */ public static synchronized BluetoothAdapter getDefaultAdapter() { if (sAdapter == null) { IBinder b = ServiceManager.getService(BLUETOOTH_MANAGER_SERVICE); if (b != null) { IBluetoothManager managerService = IBluetoothManager.Stub.asInterface(b); sAdapter = new BluetoothAdapter(managerService); } else { Log.e(TAG, "Bluetooth binder is null"); } } return sAdapter; } /** * Use {@link #getDefaultAdapter} to get the BluetoothAdapter instance. */ BluetoothAdapter(IBluetoothManager managerService) { if (managerService == null) { throw new IllegalArgumentException("bluetooth manager service is null"); } try { mServiceLock.writeLock().lock(); mService = managerService.registerAdapter(mManagerCallback); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.writeLock().unlock(); } mManagerService = managerService; mLeScanClients = new HashMap(); mToken = new Binder(); } /** * Get a {@link BluetoothDevice} object for the given Bluetooth hardware * address. *

Valid Bluetooth hardware addresses must be upper case, in a format * such as "00:11:22:33:AA:BB". The helper {@link #checkBluetoothAddress} is * available to validate a Bluetooth address. *

A {@link BluetoothDevice} will always be returned for a valid * hardware address, even if this adapter has never seen that device. * * @param address valid Bluetooth MAC address * @throws IllegalArgumentException if address is invalid */ public BluetoothDevice getRemoteDevice(String address) { return new BluetoothDevice(address); } /** * Get a {@link BluetoothDevice} object for the given Bluetooth hardware * address. *

Valid Bluetooth hardware addresses must be 6 bytes. This method * expects the address in network byte order (MSB first). *

A {@link BluetoothDevice} will always be returned for a valid * hardware address, even if this adapter has never seen that device. * * @param address Bluetooth MAC address (6 bytes) * @throws IllegalArgumentException if address is invalid */ public BluetoothDevice getRemoteDevice(byte[] address) { if (address == null || address.length != 6) { throw new IllegalArgumentException("Bluetooth address must have 6 bytes"); } return new BluetoothDevice(String.format(Locale.US, "%02X:%02X:%02X:%02X:%02X:%02X", address[0], address[1], address[2], address[3], address[4], address[5])); } /** * Returns a {@link BluetoothLeAdvertiser} object for Bluetooth LE Advertising operations. * Will return null if Bluetooth is turned off or if Bluetooth LE Advertising is not * supported on this device. *

* Use {@link #isMultipleAdvertisementSupported()} to check whether LE Advertising is supported * on this device before calling this method. */ public BluetoothLeAdvertiser getBluetoothLeAdvertiser() { if (!getLeAccess()) return null; if (!isMultipleAdvertisementSupported() && !isPeripheralModeSupported()) { Log.e(TAG, "Bluetooth LE advertising not supported"); return null; } synchronized(mLock) { if (sBluetoothLeAdvertiser == null) { sBluetoothLeAdvertiser = new BluetoothLeAdvertiser(mManagerService); } } return sBluetoothLeAdvertiser; } /** * Returns a {@link BluetoothLeScanner} object for Bluetooth LE scan operations. */ public BluetoothLeScanner getBluetoothLeScanner() { if (!getLeAccess()) return null; synchronized(mLock) { if (sBluetoothLeScanner == null) { sBluetoothLeScanner = new BluetoothLeScanner(mManagerService); } } return sBluetoothLeScanner; } /** * Return true if Bluetooth is currently enabled and ready for use. *

Equivalent to: * getBluetoothState() == STATE_ON *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return true if the local adapter is turned on */ @RequiresPermission(Manifest.permission.BLUETOOTH) public boolean isEnabled() { try { mServiceLock.readLock().lock(); if (mService != null) return mService.isEnabled(); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Return true if Bluetooth LE(Always BLE On feature) is currently * enabled and ready for use *

This returns true if current state is either STATE_ON or STATE_BLE_ON * * @return true if the local Bluetooth LE adapter is turned on * @hide */ @SystemApi public boolean isLeEnabled() { final int state = getLeState(); if (state == BluetoothAdapter.STATE_ON) { if (DBG) Log.d (TAG, "STATE_ON"); } else if (state == BluetoothAdapter.STATE_BLE_ON) { if (DBG) Log.d (TAG, "STATE_BLE_ON"); } else { if (DBG) Log.d (TAG, "STATE_OFF"); return false; } return true; } /** * Performs action based on user action to turn BT ON * or OFF if BT is in BLE_ON state */ private void notifyUserAction(boolean enable) { try { mServiceLock.readLock().lock(); if (mService == null) { Log.e(TAG, "mService is null"); return; } if (enable) { mService.onLeServiceUp(); //NA:TODO implementation pending } else { mService.onBrEdrDown(); //NA:TODO implementation pending } } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } } /** * Turns off Bluetooth LE which was earlier turned on by calling EnableBLE(). * *

If the internal Adapter state is STATE_BLE_ON, this would trigger the transition * to STATE_OFF and completely shut-down Bluetooth * *

If the Adapter state is STATE_ON, This would unregister the existance of * special Bluetooth LE application and hence the further turning off of Bluetooth * from UI would ensure the complete turn-off of Bluetooth rather than staying back * BLE only state * *

This is an asynchronous call: it will return immediately, and * clients should listen for {@link #ACTION_BLE_STATE_CHANGED} * to be notified of subsequent adapter state changes If this call returns * true, then the adapter state will immediately transition from {@link * #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time * later transition to either {@link #STATE_BLE_ON} or {@link * #STATE_OFF} based on the existance of the further Always BLE ON enabled applications * If this call returns false then there was an * immediate problem that will prevent the QAdapter from being turned off - * such as the QAadapter already being turned off. * * @return true to indicate success, or false on * immediate error * @hide */ @SystemApi public boolean disableBLE() { if (!isBleScanAlwaysAvailable()) return false; int state = getLeState(); if (state == BluetoothAdapter.STATE_ON) { if (DBG) Log.d (TAG, "STATE_ON: shouldn't disable"); try { mManagerService.updateBleAppCount(mToken, false); } catch (RemoteException e) { Log.e(TAG, "", e); } return true; } else if (state == BluetoothAdapter.STATE_BLE_ON) { if (DBG) Log.d (TAG, "STATE_BLE_ON"); int bleAppCnt = 0; try { bleAppCnt = mManagerService.updateBleAppCount(mToken, false); } catch (RemoteException e) { Log.e(TAG, "", e); } if (bleAppCnt == 0) { // Disable only if there are no other clients notifyUserAction(false); } return true; } if (DBG) Log.d (TAG, "STATE_OFF: Already disabled"); return false; } /** * Special Applications who want to only turn on Bluetooth Low Energy (BLE) would * EnableBLE, EnableBLE brings-up Bluetooth so that application can access * only LE related feature (Bluetooth GATT layers interfaces using the respective class) * EnableBLE in turn registers the existance of a special App which wants to * turn on Bluetooth Low enrgy part without making it visible at the settings UI * as Bluetooth ON. *

Invoking EnableBLE when Bluetooth is already in ON state, would just registers * the existance of special Application and doesn't do anything to current BT state. * when user turn OFF Bluetooth from UI, if there is an existance of special app, Bluetooth * would stay in BLE_ON state so that LE features are still acessible to the special * Applications. * *

This is an asynchronous call: it will return immediately, and * clients should listen for {@link #ACTION_BLE_STATE_CHANGED} * to be notified of subsequent adapter state changes. If this call returns * true, then the adapter state will immediately transition from {@link * #STATE_OFF} to {@link #STATE_BLE_TURNING_ON}, and some time * later transition to either {@link #STATE_OFF} or {@link * #STATE_BLE_ON}. If this call returns false then there was an * immediate problem that will prevent the adapter from being turned on - * such as Airplane mode, or the adapter is already turned on. * (@link #ACTION_BLE_STATE_CHANGED) returns the Bluetooth Adapter's various * states, It includes all the classic Bluetooth Adapter states along with * internal BLE only states * * @return true to indicate Bluetooth LE start-up has begun, or false on * immediate error * @hide */ @SystemApi public boolean enableBLE() { if (!isBleScanAlwaysAvailable()) return false; if (isLeEnabled() == true) { if (DBG) Log.d(TAG, "enableBLE(): BT is already enabled..!"); try { mManagerService.updateBleAppCount(mToken, true); } catch (RemoteException e) { Log.e(TAG, "", e); } return true; } try { if (DBG) Log.d(TAG, "Calling enableBLE"); mManagerService.updateBleAppCount(mToken, true); return mManagerService.enable(); } catch (RemoteException e) { Log.e(TAG, "", e); } return false; } /** * Get the current state of the local Bluetooth adapter. *

Possible return values are * {@link #STATE_OFF}, * {@link #STATE_TURNING_ON}, * {@link #STATE_ON}, * {@link #STATE_TURNING_OFF}. *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return current state of Bluetooth adapter */ @RequiresPermission(Manifest.permission.BLUETOOTH) @AdapterState public int getState() { int state = BluetoothAdapter.STATE_OFF; try { mServiceLock.readLock().lock(); if (mService != null) { state = mService.getState(); } } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } // Consider all internal states as OFF if (state == BluetoothAdapter.STATE_BLE_ON || state == BluetoothAdapter.STATE_BLE_TURNING_ON || state == BluetoothAdapter.STATE_BLE_TURNING_OFF) { if (VDBG) Log.d(TAG, "Consider internal state as OFF"); state = BluetoothAdapter.STATE_OFF; } if (VDBG) Log.d(TAG, "" + hashCode() + ": getState(). Returning " + state); return state; } /** * Get the current state of the local Bluetooth adapter *

This returns current internal state of Adapter including LE ON/OFF * *

Possible return values are * {@link #STATE_OFF}, * {@link #STATE_BLE_TURNING_ON}, * {@link #STATE_BLE_ON}, * {@link #STATE_TURNING_ON}, * {@link #STATE_ON}, * {@link #STATE_TURNING_OFF}, * {@link #STATE_BLE_TURNING_OFF}. *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return current state of Bluetooth adapter * @hide */ @RequiresPermission(Manifest.permission.BLUETOOTH) @AdapterState public int getLeState() { int state = BluetoothAdapter.STATE_OFF; try { mServiceLock.readLock().lock(); if (mService != null) { state = mService.getState(); } } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } if (VDBG) Log.d(TAG,"getLeState() returning " + state); return state; } boolean getLeAccess() { if(getLeState() == STATE_ON) return true; else if (getLeState() == STATE_BLE_ON) return true; // TODO: FILTER SYSTEM APPS HERE <-- return false; } /** * Turn on the local Bluetooth adapter—do not use without explicit * user action to turn on Bluetooth. *

This powers on the underlying Bluetooth hardware, and starts all * Bluetooth system services. *

Bluetooth should never be enabled without * direct user consent. If you want to turn on Bluetooth in order * to create a wireless connection, you should use the {@link * #ACTION_REQUEST_ENABLE} Intent, which will raise a dialog that requests * user permission to turn on Bluetooth. The {@link #enable()} method is * provided only for applications that include a user interface for changing * system settings, such as a "power manager" app.

*

This is an asynchronous call: it will return immediately, and * clients should listen for {@link #ACTION_STATE_CHANGED} * to be notified of subsequent adapter state changes. If this call returns * true, then the adapter state will immediately transition from {@link * #STATE_OFF} to {@link #STATE_TURNING_ON}, and some time * later transition to either {@link #STATE_OFF} or {@link * #STATE_ON}. If this call returns false then there was an * immediate problem that will prevent the adapter from being turned on - * such as Airplane mode, or the adapter is already turned on. *

Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} * permission * * @return true to indicate adapter startup has begun, or false on * immediate error */ @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public boolean enable() { if (isEnabled() == true) { if (DBG) Log.d(TAG, "enable(): BT is already enabled..!"); return true; } try { return mManagerService.enable(); } catch (RemoteException e) {Log.e(TAG, "", e);} return false; } /** * Turn off the local Bluetooth adapter—do not use without explicit * user action to turn off Bluetooth. *

This gracefully shuts down all Bluetooth connections, stops Bluetooth * system services, and powers down the underlying Bluetooth hardware. *

Bluetooth should never be disabled without * direct user consent. The {@link #disable()} method is * provided only for applications that include a user interface for changing * system settings, such as a "power manager" app.

*

This is an asynchronous call: it will return immediately, and * clients should listen for {@link #ACTION_STATE_CHANGED} * to be notified of subsequent adapter state changes. If this call returns * true, then the adapter state will immediately transition from {@link * #STATE_ON} to {@link #STATE_TURNING_OFF}, and some time * later transition to either {@link #STATE_OFF} or {@link * #STATE_ON}. If this call returns false then there was an * immediate problem that will prevent the adapter from being turned off - * such as the adapter already being turned off. *

Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} * permission * * @return true to indicate adapter shutdown has begun, or false on * immediate error */ @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public boolean disable() { try { return mManagerService.disable(true); } catch (RemoteException e) {Log.e(TAG, "", e);} return false; } /** * Turn off the local Bluetooth adapter and don't persist the setting. * *

Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} * permission * * @return true to indicate adapter shutdown has begun, or false on * immediate error * @hide */ public boolean disable(boolean persist) { try { return mManagerService.disable(persist); } catch (RemoteException e) {Log.e(TAG, "", e);} return false; } /** * Returns the hardware address of the local Bluetooth adapter. *

For example, "00:11:22:AA:BB:CC". *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return Bluetooth hardware address as string */ @RequiresPermission(Manifest.permission.BLUETOOTH) public String getAddress() { try { return mManagerService.getAddress(); } catch (RemoteException e) {Log.e(TAG, "", e);} return null; } /** * Get the friendly Bluetooth name of the local Bluetooth adapter. *

This name is visible to remote Bluetooth devices. *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return the Bluetooth name, or null on error */ public String getName() { try { return mManagerService.getName(); } catch (RemoteException e) {Log.e(TAG, "", e);} return null; } /** * enable or disable Bluetooth HCI snoop log. * *

Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN} * permission * * @return true to indicate configure HCI log successfully, or false on * immediate error * @hide */ public boolean configHciSnoopLog(boolean enable) { try { mServiceLock.readLock().lock(); if (mService != null) return mService.configHciSnoopLog(enable); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Factory reset bluetooth settings. * *

Requires the {@link android.Manifest.permission#BLUETOOTH_PRIVILEGED} * permission * * @return true to indicate that the config file was successfully cleared * * @hide */ public boolean factoryReset() { try { mServiceLock.readLock().lock(); if (mService != null) { return mService.factoryReset(); } SystemProperties.set("persist.bluetooth.factoryreset", "true"); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Get the UUIDs supported by the local Bluetooth adapter. * *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return the UUIDs supported by the local Bluetooth Adapter. * @hide */ public ParcelUuid[] getUuids() { if (getState() != STATE_ON) return null; try { mServiceLock.readLock().lock(); if (mService != null) return mService.getUuids(); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return null; } /** * Set the friendly Bluetooth name of the local Bluetooth adapter. *

This name is visible to remote Bluetooth devices. *

Valid Bluetooth names are a maximum of 248 bytes using UTF-8 * encoding, although many remote devices can only display the first * 40 characters, and some may be limited to just 20. *

If Bluetooth state is not {@link #STATE_ON}, this API * will return false. After turning on Bluetooth, * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} * to get the updated value. *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} * * @param name a valid Bluetooth name * @return true if the name was set, false otherwise */ @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public boolean setName(String name) { if (getState() != STATE_ON) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.setName(name); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Get the current Bluetooth scan mode of the local Bluetooth adapter. *

The Bluetooth scan mode determines if the local adapter is * connectable and/or discoverable from remote Bluetooth devices. *

Possible values are: * {@link #SCAN_MODE_NONE}, * {@link #SCAN_MODE_CONNECTABLE}, * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. *

If Bluetooth state is not {@link #STATE_ON}, this API * will return {@link #SCAN_MODE_NONE}. After turning on Bluetooth, * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} * to get the updated value. *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return scan mode */ @RequiresPermission(Manifest.permission.BLUETOOTH) @ScanMode public int getScanMode() { if (getState() != STATE_ON) return SCAN_MODE_NONE; try { mServiceLock.readLock().lock(); if (mService != null) return mService.getScanMode(); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return SCAN_MODE_NONE; } /** * Set the Bluetooth scan mode of the local Bluetooth adapter. *

The Bluetooth scan mode determines if the local adapter is * connectable and/or discoverable from remote Bluetooth devices. *

For privacy reasons, discoverable mode is automatically turned off * after duration seconds. For example, 120 seconds should be * enough for a remote device to initiate and complete its discovery * process. *

Valid scan mode values are: * {@link #SCAN_MODE_NONE}, * {@link #SCAN_MODE_CONNECTABLE}, * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. *

If Bluetooth state is not {@link #STATE_ON}, this API * will return false. After turning on Bluetooth, * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} * to get the updated value. *

Requires {@link android.Manifest.permission#WRITE_SECURE_SETTINGS} *

Applications cannot set the scan mode. They should use * startActivityForResult( * BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE}) * instead. * * @param mode valid scan mode * @param duration time in seconds to apply scan mode, only used for * {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE} * @return true if the scan mode was set, false otherwise * @hide */ public boolean setScanMode(@ScanMode int mode, int duration) { if (getState() != STATE_ON) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.setScanMode(mode, duration); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** @hide */ public boolean setScanMode(int mode) { if (getState() != STATE_ON) return false; /* getDiscoverableTimeout() to use the latest from NV than use 0 */ return setScanMode(mode, getDiscoverableTimeout()); } /** @hide */ public int getDiscoverableTimeout() { if (getState() != STATE_ON) return -1; try { mServiceLock.readLock().lock(); if (mService != null) return mService.getDiscoverableTimeout(); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return -1; } /** @hide */ public void setDiscoverableTimeout(int timeout) { if (getState() != STATE_ON) return; try { mServiceLock.readLock().lock(); if (mService != null) mService.setDiscoverableTimeout(timeout); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } } /** * Start the remote device discovery process. *

The discovery process usually involves an inquiry scan of about 12 * seconds, followed by a page scan of each new device to retrieve its * Bluetooth name. *

This is an asynchronous call, it will return immediately. Register * for {@link #ACTION_DISCOVERY_STARTED} and {@link * #ACTION_DISCOVERY_FINISHED} intents to determine exactly when the * discovery starts and completes. Register for {@link * BluetoothDevice#ACTION_FOUND} to be notified as remote Bluetooth devices * are found. *

Device discovery is a heavyweight procedure. New connections to * remote Bluetooth devices should not be attempted while discovery is in * progress, and existing connections will experience limited bandwidth * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing * discovery. Discovery is not managed by the Activity, * but is run as a system service, so an application should always call * {@link BluetoothAdapter#cancelDiscovery()} even if it * did not directly request a discovery, just to be sure. *

Device discovery will only find remote devices that are currently * discoverable (inquiry scan enabled). Many Bluetooth devices are * not discoverable by default, and need to be entered into a special mode. *

If Bluetooth state is not {@link #STATE_ON}, this API * will return false. After turning on Bluetooth, * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} * to get the updated value. *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}. * * @return true on success, false on error */ @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public boolean startDiscovery() { if (getState() != STATE_ON) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.startDiscovery(); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Cancel the current device discovery process. *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}. *

Because discovery is a heavyweight procedure for the Bluetooth * adapter, this method should always be called before attempting to connect * to a remote device with {@link * android.bluetooth.BluetoothSocket#connect()}. Discovery is not managed by * the Activity, but is run as a system service, so an application should * always call cancel discovery even if it did not directly request a * discovery, just to be sure. *

If Bluetooth state is not {@link #STATE_ON}, this API * will return false. After turning on Bluetooth, * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} * to get the updated value. * * @return true on success, false on error */ @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public boolean cancelDiscovery() { if (getState() != STATE_ON) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.cancelDiscovery(); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Return true if the local Bluetooth adapter is currently in the device * discovery process. *

Device discovery is a heavyweight procedure. New connections to * remote Bluetooth devices should not be attempted while discovery is in * progress, and existing connections will experience limited bandwidth * and high latency. Use {@link #cancelDiscovery()} to cancel an ongoing * discovery. *

Applications can also register for {@link #ACTION_DISCOVERY_STARTED} * or {@link #ACTION_DISCOVERY_FINISHED} to be notified when discovery * starts or completes. *

If Bluetooth state is not {@link #STATE_ON}, this API * will return false. After turning on Bluetooth, * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} * to get the updated value. *

Requires {@link android.Manifest.permission#BLUETOOTH}. * * @return true if discovering */ @RequiresPermission(Manifest.permission.BLUETOOTH) public boolean isDiscovering() { if (getState() != STATE_ON) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.isDiscovering(); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Return true if the multi advertisement is supported by the chipset * * @return true if Multiple Advertisement feature is supported */ public boolean isMultipleAdvertisementSupported() { if (getState() != STATE_ON) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.isMultiAdvertisementSupported(); } catch (RemoteException e) { Log.e(TAG, "failed to get isMultipleAdvertisementSupported, error: ", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Returns {@code true} if BLE scan is always available, {@code false} otherwise.

* * If this returns {@code true}, application can issue {@link BluetoothLeScanner#startScan} and * fetch scan results even when Bluetooth is turned off.

* * To change this setting, use {@link #ACTION_REQUEST_BLE_SCAN_ALWAYS_AVAILABLE}. * * @hide */ @SystemApi public boolean isBleScanAlwaysAvailable() { try { return mManagerService.isBleScanAlwaysAvailable(); } catch (RemoteException e) { Log.e(TAG, "remote expection when calling isBleScanAlwaysAvailable", e); return false; } } /** * Returns whether peripheral mode is supported. * * @hide */ public boolean isPeripheralModeSupported() { if (getState() != STATE_ON) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.isPeripheralModeSupported(); } catch (RemoteException e) { Log.e(TAG, "failed to get peripheral mode capability: ", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Return true if offloaded filters are supported * * @return true if chipset supports on-chip filtering */ public boolean isOffloadedFilteringSupported() { if (!getLeAccess()) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.isOffloadedFilteringSupported(); } catch (RemoteException e) { Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Return true if offloaded scan batching is supported * * @return true if chipset supports on-chip scan batching */ public boolean isOffloadedScanBatchingSupported() { if (!getLeAccess()) return false; try { mServiceLock.readLock().lock(); if (mService != null) return mService.isOffloadedScanBatchingSupported(); } catch (RemoteException e) { Log.e(TAG, "failed to get isOffloadedScanBatchingSupported, error: ", e); } finally { mServiceLock.readLock().unlock(); } return false; } /** * Return true if hardware has entries available for matching beacons * * @return true if there are hw entries available for matching beacons * @hide */ public boolean isHardwareTrackingFiltersAvailable() { if (!getLeAccess()) return false; try { IBluetoothGatt iGatt = mManagerService.getBluetoothGatt(); if (iGatt == null) { // BLE is not supported return false; } return (iGatt.numHwTrackFiltersAvailable() != 0); } catch (RemoteException e) { Log.e(TAG, "", e); } return false; } /** * Return the record of {@link BluetoothActivityEnergyInfo} object that * has the activity and energy info. This can be used to ascertain what * the controller has been up to, since the last sample. * @param updateType Type of info, cached vs refreshed. * * @return a record with {@link BluetoothActivityEnergyInfo} or null if * report is unavailable or unsupported * @deprecated use the asynchronous * {@link #requestControllerActivityEnergyInfo(ResultReceiver)} instead. * @hide */ @Deprecated public BluetoothActivityEnergyInfo getControllerActivityEnergyInfo(int updateType) { SynchronousResultReceiver receiver = new SynchronousResultReceiver(); requestControllerActivityEnergyInfo(receiver); try { SynchronousResultReceiver.Result result = receiver.awaitResult(1000); if (result.bundle != null) { return result.bundle.getParcelable(BatteryStats.RESULT_RECEIVER_CONTROLLER_KEY); } } catch (TimeoutException e) { Log.e(TAG, "getControllerActivityEnergyInfo timed out"); } return null; } /** * Request the record of {@link BluetoothActivityEnergyInfo} object that * has the activity and energy info. This can be used to ascertain what * the controller has been up to, since the last sample. * * A null value for the activity info object may be sent if the bluetooth service is * unreachable or the device does not support reporting such information. * * @param result The callback to which to send the activity info. * @hide */ public void requestControllerActivityEnergyInfo(ResultReceiver result) { try { mServiceLock.readLock().lock(); if (mService != null) { mService.requestActivityInfo(result); result = null; } } catch (RemoteException e) { Log.e(TAG, "getControllerActivityEnergyInfoCallback: " + e); } finally { mServiceLock.readLock().unlock(); if (result != null) { // Only send an immediate result if we failed. result.send(0, null); } } } /** * Return the set of {@link BluetoothDevice} objects that are bonded * (paired) to the local adapter. *

If Bluetooth state is not {@link #STATE_ON}, this API * will return an empty set. After turning on Bluetooth, * wait for {@link #ACTION_STATE_CHANGED} with {@link #STATE_ON} * to get the updated value. *

Requires {@link android.Manifest.permission#BLUETOOTH}. * * @return unmodifiable set of {@link BluetoothDevice}, or null on error */ @RequiresPermission(Manifest.permission.BLUETOOTH) public Set getBondedDevices() { if (getState() != STATE_ON) { return toDeviceSet(new BluetoothDevice[0]); } try { mServiceLock.readLock().lock(); if (mService != null) return toDeviceSet(mService.getBondedDevices()); return toDeviceSet(new BluetoothDevice[0]); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } return null; } /** * Get the current connection state of the local Bluetooth adapter. * This can be used to check whether the local Bluetooth adapter is connected * to any profile of any other remote Bluetooth Device. * *

Use this function along with {@link #ACTION_CONNECTION_STATE_CHANGED} * intent to get the connection state of the adapter. * * @return One of {@link #STATE_CONNECTED}, {@link #STATE_DISCONNECTED}, * {@link #STATE_CONNECTING} or {@link #STATE_DISCONNECTED} * * @hide */ public int getConnectionState() { if (getState() != STATE_ON) return BluetoothAdapter.STATE_DISCONNECTED; try { mServiceLock.readLock().lock(); if (mService != null) return mService.getAdapterConnectionState(); } catch (RemoteException e) { Log.e(TAG, "getConnectionState:", e); } finally { mServiceLock.readLock().unlock(); } return BluetoothAdapter.STATE_DISCONNECTED; } /** * Get the current connection state of a profile. * This function can be used to check whether the local Bluetooth adapter * is connected to any remote device for a specific profile. * Profile can be one of {@link BluetoothProfile#HEALTH}, {@link BluetoothProfile#HEADSET}, * {@link BluetoothProfile#A2DP}. * *

Requires {@link android.Manifest.permission#BLUETOOTH}. * *

Return value can be one of * {@link BluetoothProfile#STATE_DISCONNECTED}, * {@link BluetoothProfile#STATE_CONNECTING}, * {@link BluetoothProfile#STATE_CONNECTED}, * {@link BluetoothProfile#STATE_DISCONNECTING} */ @RequiresPermission(Manifest.permission.BLUETOOTH) public int getProfileConnectionState(int profile) { if (getState() != STATE_ON) return BluetoothProfile.STATE_DISCONNECTED; try { mServiceLock.readLock().lock(); if (mService != null) return mService.getProfileConnectionState(profile); } catch (RemoteException e) { Log.e(TAG, "getProfileConnectionState:", e); } finally { mServiceLock.readLock().unlock(); } return BluetoothProfile.STATE_DISCONNECTED; } /** * Create a listening, secure RFCOMM Bluetooth socket. *

A remote device connecting to this socket will be authenticated and * communication on this socket will be encrypted. *

Use {@link BluetoothServerSocket#accept} to retrieve incoming * connections from a listening {@link BluetoothServerSocket}. *

Valid RFCOMM channels are in range 1 to 30. *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} * @param channel RFCOMM channel to listen on * @return a listening RFCOMM BluetoothServerSocket * @throws IOException on error, for example Bluetooth not available, or * insufficient permissions, or channel in use. * @hide */ public BluetoothServerSocket listenUsingRfcommOn(int channel) throws IOException { return listenUsingRfcommOn(channel, false, false); } /** * Create a listening, secure RFCOMM Bluetooth socket. *

A remote device connecting to this socket will be authenticated and * communication on this socket will be encrypted. *

Use {@link BluetoothServerSocket#accept} to retrieve incoming * connections from a listening {@link BluetoothServerSocket}. *

Valid RFCOMM channels are in range 1 to 30. *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} *

To auto assign a channel without creating a SDP record use * {@link SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as channel number. * @param channel RFCOMM channel to listen on * @param mitm enforce man-in-the-middle protection for authentication. * @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2 connections. * @return a listening RFCOMM BluetoothServerSocket * @throws IOException on error, for example Bluetooth not available, or * insufficient permissions, or channel in use. * @hide */ public BluetoothServerSocket listenUsingRfcommOn(int channel, boolean mitm, boolean min16DigitPin) throws IOException { BluetoothServerSocket socket = new BluetoothServerSocket( BluetoothSocket.TYPE_RFCOMM, true, true, channel, mitm, min16DigitPin); int errno = socket.mSocket.bindListen(); if (channel == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { socket.setChannel(socket.mSocket.getPort()); } if (errno != 0) { //TODO(BT): Throw the same exception error code // that the previous code was using. //socket.mSocket.throwErrnoNative(errno); throw new IOException("Error: " + errno); } return socket; } /** * Create a listening, secure RFCOMM Bluetooth socket with Service Record. *

A remote device connecting to this socket will be authenticated and * communication on this socket will be encrypted. *

Use {@link BluetoothServerSocket#accept} to retrieve incoming * connections from a listening {@link BluetoothServerSocket}. *

The system will assign an unused RFCOMM channel to listen on. *

The system will also register a Service Discovery * Protocol (SDP) record with the local SDP server containing the specified * UUID, service name, and auto-assigned channel. Remote Bluetooth devices * can use the same UUID to query our SDP server and discover which channel * to connect to. This SDP record will be removed when this socket is * closed, or if this application closes unexpectedly. *

Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to * connect to this socket from another device using the same {@link UUID}. *

Requires {@link android.Manifest.permission#BLUETOOTH} * @param name service name for SDP record * @param uuid uuid for SDP record * @return a listening RFCOMM BluetoothServerSocket * @throws IOException on error, for example Bluetooth not available, or * insufficient permissions, or channel in use. */ @RequiresPermission(Manifest.permission.BLUETOOTH) public BluetoothServerSocket listenUsingRfcommWithServiceRecord(String name, UUID uuid) throws IOException { return createNewRfcommSocketAndRecord(name, uuid, true, true); } /** * Create a listening, insecure RFCOMM Bluetooth socket with Service Record. *

The link key is not required to be authenticated, i.e the communication may be * vulnerable to Man In the Middle attacks. For Bluetooth 2.1 devices, * the link will be encrypted, as encryption is mandartory. * For legacy devices (pre Bluetooth 2.1 devices) the link will not * be encrypted. Use {@link #listenUsingRfcommWithServiceRecord}, if an * encrypted and authenticated communication channel is desired. *

Use {@link BluetoothServerSocket#accept} to retrieve incoming * connections from a listening {@link BluetoothServerSocket}. *

The system will assign an unused RFCOMM channel to listen on. *

The system will also register a Service Discovery * Protocol (SDP) record with the local SDP server containing the specified * UUID, service name, and auto-assigned channel. Remote Bluetooth devices * can use the same UUID to query our SDP server and discover which channel * to connect to. This SDP record will be removed when this socket is * closed, or if this application closes unexpectedly. *

Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to * connect to this socket from another device using the same {@link UUID}. *

Requires {@link android.Manifest.permission#BLUETOOTH} * @param name service name for SDP record * @param uuid uuid for SDP record * @return a listening RFCOMM BluetoothServerSocket * @throws IOException on error, for example Bluetooth not available, or * insufficient permissions, or channel in use. */ @RequiresPermission(Manifest.permission.BLUETOOTH) public BluetoothServerSocket listenUsingInsecureRfcommWithServiceRecord(String name, UUID uuid) throws IOException { return createNewRfcommSocketAndRecord(name, uuid, false, false); } /** * Create a listening, encrypted, * RFCOMM Bluetooth socket with Service Record. *

The link will be encrypted, but the link key is not required to be authenticated * i.e the communication is vulnerable to Man In the Middle attacks. Use * {@link #listenUsingRfcommWithServiceRecord}, to ensure an authenticated link key. *

Use this socket if authentication of link key is not possible. * For example, for Bluetooth 2.1 devices, if any of the devices does not have * an input and output capability or just has the ability to display a numeric key, * a secure socket connection is not possible and this socket can be used. * Use {@link #listenUsingInsecureRfcommWithServiceRecord}, if encryption is not required. * For Bluetooth 2.1 devices, the link will be encrypted, as encryption is mandartory. * For more details, refer to the Security Model section 5.2 (vol 3) of * Bluetooth Core Specification version 2.1 + EDR. *

Use {@link BluetoothServerSocket#accept} to retrieve incoming * connections from a listening {@link BluetoothServerSocket}. *

The system will assign an unused RFCOMM channel to listen on. *

The system will also register a Service Discovery * Protocol (SDP) record with the local SDP server containing the specified * UUID, service name, and auto-assigned channel. Remote Bluetooth devices * can use the same UUID to query our SDP server and discover which channel * to connect to. This SDP record will be removed when this socket is * closed, or if this application closes unexpectedly. *

Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to * connect to this socket from another device using the same {@link UUID}. *

Requires {@link android.Manifest.permission#BLUETOOTH} * @param name service name for SDP record * @param uuid uuid for SDP record * @return a listening RFCOMM BluetoothServerSocket * @throws IOException on error, for example Bluetooth not available, or * insufficient permissions, or channel in use. * @hide */ public BluetoothServerSocket listenUsingEncryptedRfcommWithServiceRecord( String name, UUID uuid) throws IOException { return createNewRfcommSocketAndRecord(name, uuid, false, true); } private BluetoothServerSocket createNewRfcommSocketAndRecord(String name, UUID uuid, boolean auth, boolean encrypt) throws IOException { BluetoothServerSocket socket; socket = new BluetoothServerSocket(BluetoothSocket.TYPE_RFCOMM, auth, encrypt, new ParcelUuid(uuid)); socket.setServiceName(name); int errno = socket.mSocket.bindListen(); if (errno != 0) { //TODO(BT): Throw the same exception error code // that the previous code was using. //socket.mSocket.throwErrnoNative(errno); throw new IOException("Error: " + errno); } return socket; } /** * Construct an unencrypted, unauthenticated, RFCOMM server socket. * Call #accept to retrieve connections to this socket. * @return An RFCOMM BluetoothServerSocket * @throws IOException On error, for example Bluetooth not available, or * insufficient permissions. * @hide */ public BluetoothServerSocket listenUsingInsecureRfcommOn(int port) throws IOException { BluetoothServerSocket socket = new BluetoothServerSocket( BluetoothSocket.TYPE_RFCOMM, false, false, port); int errno = socket.mSocket.bindListen(); if(port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { socket.setChannel(socket.mSocket.getPort()); } if (errno != 0) { //TODO(BT): Throw the same exception error code // that the previous code was using. //socket.mSocket.throwErrnoNative(errno); throw new IOException("Error: " + errno); } return socket; } /** * Construct an encrypted, RFCOMM server socket. * Call #accept to retrieve connections to this socket. * @return An RFCOMM BluetoothServerSocket * @throws IOException On error, for example Bluetooth not available, or * insufficient permissions. * @hide */ public BluetoothServerSocket listenUsingEncryptedRfcommOn(int port) throws IOException { BluetoothServerSocket socket = new BluetoothServerSocket( BluetoothSocket.TYPE_RFCOMM, false, true, port); int errno = socket.mSocket.bindListen(); if(port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { socket.setChannel(socket.mSocket.getPort()); } if (errno < 0) { //TODO(BT): Throw the same exception error code // that the previous code was using. //socket.mSocket.throwErrnoNative(errno); throw new IOException("Error: " + errno); } return socket; } /** * Construct a SCO server socket. * Call #accept to retrieve connections to this socket. * @return A SCO BluetoothServerSocket * @throws IOException On error, for example Bluetooth not available, or * insufficient permissions. * @hide */ public static BluetoothServerSocket listenUsingScoOn() throws IOException { BluetoothServerSocket socket = new BluetoothServerSocket( BluetoothSocket.TYPE_SCO, false, false, -1); int errno = socket.mSocket.bindListen(); if (errno < 0) { //TODO(BT): Throw the same exception error code // that the previous code was using. //socket.mSocket.throwErrnoNative(errno); } return socket; } /** * Construct an encrypted, authenticated, L2CAP server socket. * Call #accept to retrieve connections to this socket. *

To auto assign a port without creating a SDP record use * {@link SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number. * @param port the PSM to listen on * @param mitm enforce man-in-the-middle protection for authentication. * @param min16DigitPin enforce a pin key length og minimum 16 digit for sec mode 2 connections. * @return An L2CAP BluetoothServerSocket * @throws IOException On error, for example Bluetooth not available, or * insufficient permissions. * @hide */ public BluetoothServerSocket listenUsingL2capOn(int port, boolean mitm, boolean min16DigitPin) throws IOException { BluetoothServerSocket socket = new BluetoothServerSocket( BluetoothSocket.TYPE_L2CAP, true, true, port, mitm, min16DigitPin); int errno = socket.mSocket.bindListen(); if(port == SOCKET_CHANNEL_AUTO_STATIC_NO_SDP) { socket.setChannel(socket.mSocket.getPort()); } if (errno != 0) { //TODO(BT): Throw the same exception error code // that the previous code was using. //socket.mSocket.throwErrnoNative(errno); throw new IOException("Error: " + errno); } return socket; } /** * Construct an encrypted, authenticated, L2CAP server socket. * Call #accept to retrieve connections to this socket. *

To auto assign a port without creating a SDP record use * {@link SOCKET_CHANNEL_AUTO_STATIC_NO_SDP} as port number. * @param port the PSM to listen on * @return An L2CAP BluetoothServerSocket * @throws IOException On error, for example Bluetooth not available, or * insufficient permissions. * @hide */ public BluetoothServerSocket listenUsingL2capOn(int port) throws IOException { return listenUsingL2capOn(port, false, false); } /** * Read the local Out of Band Pairing Data *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @return Pair of Hash and Randomizer * * @hide */ public Pair readOutOfBandData() { if (getState() != STATE_ON) return null; //TODO(BT /* try { byte[] hash; byte[] randomizer; byte[] ret = null; mServiceLock.readLock().lock(); if (mService != null) mService.readOutOfBandData(); if (ret == null || ret.length != 32) return null; hash = Arrays.copyOfRange(ret, 0, 16); randomizer = Arrays.copyOfRange(ret, 16, 32); if (DBG) { Log.d(TAG, "readOutOfBandData:" + Arrays.toString(hash) + ":" + Arrays.toString(randomizer)); } return new Pair(hash, randomizer); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { mServiceLock.readLock().unlock(); } */ return null; } /** * Get the profile proxy object associated with the profile. * *

Profile can be one of {@link BluetoothProfile#HEALTH}, {@link BluetoothProfile#HEADSET}, * {@link BluetoothProfile#A2DP}, {@link BluetoothProfile#GATT}, or * {@link BluetoothProfile#GATT_SERVER}. Clients must implement * {@link BluetoothProfile.ServiceListener} to get notified of * the connection status and to get the proxy object. * * @param context Context of the application * @param listener The service Listener for connection callbacks. * @param profile The Bluetooth profile; either {@link BluetoothProfile#HEALTH}, * {@link BluetoothProfile#HEADSET}, {@link BluetoothProfile#A2DP}. * {@link BluetoothProfile#GATT} or {@link BluetoothProfile#GATT_SERVER}. * @return true on success, false on error */ public boolean getProfileProxy(Context context, BluetoothProfile.ServiceListener listener, int profile) { if (context == null || listener == null) return false; if (profile == BluetoothProfile.HEADSET) { BluetoothHeadset headset = new BluetoothHeadset(context, listener); return true; } else if (profile == BluetoothProfile.A2DP) { BluetoothA2dp a2dp = new BluetoothA2dp(context, listener); return true; } else if (profile == BluetoothProfile.A2DP_SINK) { BluetoothA2dpSink a2dpSink = new BluetoothA2dpSink(context, listener); return true; } else if (profile == BluetoothProfile.AVRCP_CONTROLLER) { BluetoothAvrcpController avrcp = new BluetoothAvrcpController(context, listener); return true; } else if (profile == BluetoothProfile.INPUT_DEVICE) { BluetoothInputDevice iDev = new BluetoothInputDevice(context, listener); return true; } else if (profile == BluetoothProfile.PAN) { BluetoothPan pan = new BluetoothPan(context, listener); return true; } else if (profile == BluetoothProfile.HEALTH) { BluetoothHealth health = new BluetoothHealth(context, listener); return true; } else if (profile == BluetoothProfile.MAP) { BluetoothMap map = new BluetoothMap(context, listener); return true; } else if (profile == BluetoothProfile.HEADSET_CLIENT) { BluetoothHeadsetClient headsetClient = new BluetoothHeadsetClient(context, listener); return true; } else if (profile == BluetoothProfile.SAP) { BluetoothSap sap = new BluetoothSap(context, listener); return true; } else if (profile == BluetoothProfile.PBAP_CLIENT) { BluetoothPbapClient pbapClient = new BluetoothPbapClient(context, listener); return true; } else { return false; } } /** * Close the connection of the profile proxy to the Service. * *

Clients should call this when they are no longer using * the proxy obtained from {@link #getProfileProxy}. * Profile can be one of {@link BluetoothProfile#HEALTH}, {@link BluetoothProfile#HEADSET} or * {@link BluetoothProfile#A2DP} * * @param profile * @param proxy Profile proxy object */ public void closeProfileProxy(int profile, BluetoothProfile proxy) { if (proxy == null) return; switch (profile) { case BluetoothProfile.HEADSET: BluetoothHeadset headset = (BluetoothHeadset)proxy; headset.close(); break; case BluetoothProfile.A2DP: BluetoothA2dp a2dp = (BluetoothA2dp)proxy; a2dp.close(); break; case BluetoothProfile.A2DP_SINK: BluetoothA2dpSink a2dpSink = (BluetoothA2dpSink)proxy; a2dpSink.close(); break; case BluetoothProfile.AVRCP_CONTROLLER: BluetoothAvrcpController avrcp = (BluetoothAvrcpController)proxy; avrcp.close(); break; case BluetoothProfile.INPUT_DEVICE: BluetoothInputDevice iDev = (BluetoothInputDevice)proxy; iDev.close(); break; case BluetoothProfile.PAN: BluetoothPan pan = (BluetoothPan)proxy; pan.close(); break; case BluetoothProfile.HEALTH: BluetoothHealth health = (BluetoothHealth)proxy; health.close(); break; case BluetoothProfile.GATT: BluetoothGatt gatt = (BluetoothGatt)proxy; gatt.close(); break; case BluetoothProfile.GATT_SERVER: BluetoothGattServer gattServer = (BluetoothGattServer)proxy; gattServer.close(); break; case BluetoothProfile.MAP: BluetoothMap map = (BluetoothMap)proxy; map.close(); break; case BluetoothProfile.HEADSET_CLIENT: BluetoothHeadsetClient headsetClient = (BluetoothHeadsetClient)proxy; headsetClient.close(); break; case BluetoothProfile.SAP: BluetoothSap sap = (BluetoothSap)proxy; sap.close(); break; case BluetoothProfile.PBAP_CLIENT: BluetoothPbapClient pbapClient = (BluetoothPbapClient)proxy; pbapClient.close(); break; } } final private IBluetoothManagerCallback mManagerCallback = new IBluetoothManagerCallback.Stub() { public void onBluetoothServiceUp(IBluetooth bluetoothService) { if (VDBG) Log.d(TAG, "onBluetoothServiceUp: " + bluetoothService); mServiceLock.writeLock().lock(); mService = bluetoothService; mServiceLock.writeLock().unlock(); synchronized (mProxyServiceStateCallbacks) { for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks ) { try { if (cb != null) { cb.onBluetoothServiceUp(bluetoothService); } else { Log.d(TAG, "onBluetoothServiceUp: cb is null!!!"); } } catch (Exception e) { Log.e(TAG,"",e); } } } } public void onBluetoothServiceDown() { if (VDBG) Log.d(TAG, "onBluetoothServiceDown: " + mService); try { mServiceLock.writeLock().lock(); mService = null; if (mLeScanClients != null) mLeScanClients.clear(); if (sBluetoothLeAdvertiser != null) sBluetoothLeAdvertiser.cleanup(); if (sBluetoothLeScanner != null) sBluetoothLeScanner.cleanup(); } finally { mServiceLock.writeLock().unlock(); } synchronized (mProxyServiceStateCallbacks) { for (IBluetoothManagerCallback cb : mProxyServiceStateCallbacks ){ try { if (cb != null) { cb.onBluetoothServiceDown(); } else { Log.d(TAG, "onBluetoothServiceDown: cb is null!!!"); } } catch (Exception e) { Log.e(TAG,"",e); } } } } public void onBrEdrDown() { if (VDBG) Log.i(TAG, "on QBrEdrDown: "); } }; /** * Enable the Bluetooth Adapter, but don't auto-connect devices * and don't persist state. Only for use by system applications. * @hide */ public boolean enableNoAutoConnect() { if (isEnabled() == true){ if (DBG) Log.d(TAG, "enableNoAutoConnect(): BT is already enabled..!"); return true; } try { return mManagerService.enableNoAutoConnect(); } catch (RemoteException e) {Log.e(TAG, "", e);} return false; } /** * Enable control of the Bluetooth Adapter for a single application. * *

Some applications need to use Bluetooth for short periods of time to * transfer data but don't want all the associated implications like * automatic connection to headsets etc. * *

Multiple applications can call this. This is reference counted and * Bluetooth disabled only when no one else is using it. There will be no UI * shown to the user while bluetooth is being enabled. Any user action will * override this call. For example, if user wants Bluetooth on and the last * user of this API wanted to disable Bluetooth, Bluetooth will not be * turned off. * *

This API is only meant to be used by internal applications. Third * party applications but use {@link #enable} and {@link #disable} APIs. * *

If this API returns true, it means the callback will be called. * The callback will be called with the current state of Bluetooth. * If the state is not what was requested, an internal error would be the * reason. If Bluetooth is already on and if this function is called to turn * it on, the api will return true and a callback will be called. * *

Requires {@link android.Manifest.permission#BLUETOOTH} * * @param on True for on, false for off. * @param callback The callback to notify changes to the state. * @hide */ public boolean changeApplicationBluetoothState(boolean on, BluetoothStateChangeCallback callback) { if (callback == null) return false; //TODO(BT) /* try { mServiceLock.readLock().lock(); if (mService != null) { return mService.changeApplicationBluetoothState(on, new StateChangeCallbackWrapper(callback), new Binder()); } } catch (RemoteException e) { Log.e(TAG, "changeBluetoothState", e); } finally { mServiceLock.readLock().unlock(); } */ return false; } /** * @hide */ public interface BluetoothStateChangeCallback { public void onBluetoothStateChange(boolean on); } /** * @hide */ public class StateChangeCallbackWrapper extends IBluetoothStateChangeCallback.Stub { private BluetoothStateChangeCallback mCallback; StateChangeCallbackWrapper(BluetoothStateChangeCallback callback) { mCallback = callback; } @Override public void onBluetoothStateChange(boolean on) { mCallback.onBluetoothStateChange(on); } } private Set toDeviceSet(BluetoothDevice[] devices) { Set deviceSet = new HashSet(Arrays.asList(devices)); return Collections.unmodifiableSet(deviceSet); } protected void finalize() throws Throwable { try { mManagerService.unregisterAdapter(mManagerCallback); } catch (RemoteException e) { Log.e(TAG, "", e); } finally { super.finalize(); } } /** * Validate a String Bluetooth address, such as "00:43:A8:23:10:F0" *

Alphabetic characters must be uppercase to be valid. * * @param address Bluetooth address as string * @return true if the address is valid, false otherwise */ public static boolean checkBluetoothAddress(String address) { if (address == null || address.length() != ADDRESS_LENGTH) { return false; } for (int i = 0; i < ADDRESS_LENGTH; i++) { char c = address.charAt(i); switch (i % 3) { case 0: case 1: if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'F')) { // hex character, OK break; } return false; case 2: if (c == ':') { break; // OK } return false; } } return true; } /*package*/ IBluetoothManager getBluetoothManager() { return mManagerService; } final private ArrayList mProxyServiceStateCallbacks = new ArrayList(); /*package*/ IBluetooth getBluetoothService(IBluetoothManagerCallback cb) { synchronized (mProxyServiceStateCallbacks) { if (cb == null) { Log.w(TAG, "getBluetoothService() called with no BluetoothManagerCallback"); } else if (!mProxyServiceStateCallbacks.contains(cb)) { mProxyServiceStateCallbacks.add(cb); } } return mService; } /*package*/ void removeServiceStateCallback(IBluetoothManagerCallback cb) { synchronized (mProxyServiceStateCallbacks) { mProxyServiceStateCallbacks.remove(cb); } } /** * Callback interface used to deliver LE scan results. * * @see #startLeScan(LeScanCallback) * @see #startLeScan(UUID[], LeScanCallback) */ public interface LeScanCallback { /** * Callback reporting an LE device found during a device scan initiated * by the {@link BluetoothAdapter#startLeScan} function. * * @param device Identifies the remote device * @param rssi The RSSI value for the remote device as reported by the * Bluetooth hardware. 0 if no RSSI value is available. * @param scanRecord The content of the advertisement record offered by * the remote device. */ public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord); } /** * Starts a scan for Bluetooth LE devices. * *

Results of the scan are reported using the * {@link LeScanCallback#onLeScan} callback. * *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. * * @param callback the callback LE scan results are delivered * @return true, if the scan was started successfully * @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)} * instead. */ @Deprecated @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public boolean startLeScan(LeScanCallback callback) { return startLeScan(null, callback); } /** * Starts a scan for Bluetooth LE devices, looking for devices that * advertise given services. * *

Devices which advertise all specified services are reported using the * {@link LeScanCallback#onLeScan} callback. * *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. * * @param serviceUuids Array of services to look for * @param callback the callback LE scan results are delivered * @return true, if the scan was started successfully * @deprecated use {@link BluetoothLeScanner#startScan(List, ScanSettings, ScanCallback)} * instead. */ @Deprecated @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public boolean startLeScan(final UUID[] serviceUuids, final LeScanCallback callback) { if (DBG) Log.d(TAG, "startLeScan(): " + Arrays.toString(serviceUuids)); if (callback == null) { if (DBG) Log.e(TAG, "startLeScan: null callback"); return false; } BluetoothLeScanner scanner = getBluetoothLeScanner(); if (scanner == null) { if (DBG) Log.e(TAG, "startLeScan: cannot get BluetoothLeScanner"); return false; } synchronized(mLeScanClients) { if (mLeScanClients.containsKey(callback)) { if (DBG) Log.e(TAG, "LE Scan has already started"); return false; } try { IBluetoothGatt iGatt = mManagerService.getBluetoothGatt(); if (iGatt == null) { // BLE is not supported return false; } ScanCallback scanCallback = new ScanCallback() { @Override public void onScanResult(int callbackType, ScanResult result) { if (callbackType != ScanSettings.CALLBACK_TYPE_ALL_MATCHES) { // Should not happen. Log.e(TAG, "LE Scan has already started"); return; } ScanRecord scanRecord = result.getScanRecord(); if (scanRecord == null) { return; } if (serviceUuids != null) { List uuids = new ArrayList(); for (UUID uuid : serviceUuids) { uuids.add(new ParcelUuid(uuid)); } List scanServiceUuids = scanRecord.getServiceUuids(); if (scanServiceUuids == null || !scanServiceUuids.containsAll(uuids)) { if (DBG) Log.d(TAG, "uuids does not match"); return; } } callback.onLeScan(result.getDevice(), result.getRssi(), scanRecord.getBytes()); } }; ScanSettings settings = new ScanSettings.Builder() .setCallbackType(ScanSettings.CALLBACK_TYPE_ALL_MATCHES) .setScanMode(ScanSettings.SCAN_MODE_LOW_LATENCY).build(); List filters = new ArrayList(); if (serviceUuids != null && serviceUuids.length > 0) { // Note scan filter does not support matching an UUID array so we put one // UUID to hardware and match the whole array in callback. ScanFilter filter = new ScanFilter.Builder().setServiceUuid( new ParcelUuid(serviceUuids[0])).build(); filters.add(filter); } scanner.startScan(filters, settings, scanCallback); mLeScanClients.put(callback, scanCallback); return true; } catch (RemoteException e) { Log.e(TAG,"",e); } } return false; } /** * Stops an ongoing Bluetooth LE device scan. * *

Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. * * @param callback used to identify which scan to stop * must be the same handle used to start the scan * @deprecated Use {@link BluetoothLeScanner#stopScan(ScanCallback)} instead. */ @Deprecated @RequiresPermission(Manifest.permission.BLUETOOTH_ADMIN) public void stopLeScan(LeScanCallback callback) { if (DBG) Log.d(TAG, "stopLeScan()"); BluetoothLeScanner scanner = getBluetoothLeScanner(); if (scanner == null) { return; } synchronized (mLeScanClients) { ScanCallback scanCallback = mLeScanClients.remove(callback); if (scanCallback == null) { if (DBG) Log.d(TAG, "scan not started yet"); return; } scanner.stopScan(scanCallback); } } }