/*
* Copyright (C) 2009-2014 The Android Open Source Project
*
* 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.annotation.SdkConstant;
import android.annotation.SdkConstant.SdkConstantType;
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.Handler;
import android.os.IBinder;
import android.os.Looper;
import android.os.ParcelUuid;
import android.os.RemoteException;
import android.os.ServiceManager;
import android.util.Log;
import android.util.Pair;
import java.io.IOException;
import java.lang.ref.WeakReference;
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;
/**
* 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.
*
* <p>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, retrieve it through
* {@link android.content.Context#getSystemService} with
* {@link android.content.Context#BLUETOOTH_SERVICE}.
* 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)}.
*
* <p class="note"><strong>Note:</strong>
* Most methods require the {@link android.Manifest.permission#BLUETOOTH}
* permission and some also require the
* {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission.
*
* <div class="special reference">
* <h3>Developer Guides</h3>
* <p>For more information about using Bluetooth, read the
* <a href="{@docRoot}guide/topics/wireless/bluetooth.html">Bluetooth</a> developer guide.</p>
* </div>
*
* {@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;
/**
* 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:
* <p><code>Intent.getIntExtra(BluetoothAdapter.EXTRA_STATE,
* BluetoothAdapter.ERROR)</code>
*/
public static final int ERROR = Integer.MIN_VALUE;
/**
* Broadcast Action: The state of the local Bluetooth adapter has been
* changed.
* <p>For example, Bluetooth has been turned on or off.
* <p>Always contains the extra fields {@link #EXTRA_STATE} and {@link
* #EXTRA_PREVIOUS_STATE} containing the new and old states
* respectively.
* <p>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";
/**
* 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;
/**
* 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.
* <p>Discoverable mode is equivalent to {@link
* #SCAN_MODE_CONNECTABLE_DISCOVERABLE}. It allows remote devices to see
* this Bluetooth adapter when they perform a discovery.
* <p>For privacy, Android is not discoverable by default.
* <p>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.
* <p>Notification of the result of this activity is posted using the
* {@link android.app.Activity#onActivityResult} callback. The
* <code>resultCode</code>
* 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.
* <p>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.
* <p>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.
* <p>This system activity will return once Bluetooth has completed turning
* on, or the user has decided not to turn Bluetooth on.
* <p>Notification of the result of this activity is posted using the
* {@link android.app.Activity#onActivityResult} callback. The
* <code>resultCode</code>
* 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.
* <p>Applications can also listen for {@link #ACTION_STATE_CHANGED}
* for global notification whenever Bluetooth is turned on or off.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
*/
@SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
public static final String ACTION_REQUEST_ENABLE =
"android.bluetooth.adapter.action.REQUEST_ENABLE";
/**
* Broadcast Action: Indicates the Bluetooth scan mode of the local Adapter
* has changed.
* <p>Always contains the extra fields {@link #EXTRA_SCAN_MODE} and {@link
* #EXTRA_PREVIOUS_SCAN_MODE} containing the new and old scan modes
* respectively.
* <p>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";
/**
* 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.
* <p>This usually involves an inquiry scan of about 12 seconds, followed
* by a page scan of each new device to retrieve its Bluetooth name.
* <p>Register for {@link BluetoothDevice#ACTION_FOUND} to be notified as
* remote Bluetooth devices are found.
* <p>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.
* <p>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.
* <p>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.
* <p>This name is visible to remote Bluetooth devices.
* <p>Always contains the extra field {@link #EXTRA_LOCAL_NAME} containing
* the name.
* <p>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.
*
* <p> 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.
*
* <p>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}.
*
* <p>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";
/** 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 static final int ADDRESS_LENGTH = 17;
private static final int CONTROLLER_ENERGY_UPDATE_TIMEOUT_MILLIS = 30;
/** @hide */
public static final int ACTIVITY_ENERGY_INFO_CACHED = 0;
/** @hide */
public static final int ACTIVITY_ENERGY_INFO_REFRESHED = 1;
/**
* 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 Object mLock = new Object();
private final Map<LeScanCallback, ScanCallback> mLeScanClients;
/**
* Get a handle to the default local Bluetooth adapter.
* <p>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 {
mService = managerService.registerAdapter(mManagerCallback);
} catch (RemoteException e) {Log.e(TAG, "", e);}
mManagerService = managerService;
mLeScanClients = new HashMap<LeScanCallback, ScanCallback>();
}
/**
* Get a {@link BluetoothDevice} object for the given Bluetooth hardware
* address.
* <p>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.
* <p>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.
* <p>Valid Bluetooth hardware addresses must be 6 bytes. This method
* expects the address in network byte order (MSB first).
* <p>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.
* <p>
* Use {@link #isMultipleAdvertisementSupported()} to check whether LE Advertising is supported
* on this device before calling this method.
*/
public BluetoothLeAdvertiser getBluetoothLeAdvertiser() {
if (getState() != STATE_ON) {
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 (getState() != STATE_ON) {
return null;
}
synchronized(mLock) {
if (sBluetoothLeScanner == null) {
sBluetoothLeScanner = new BluetoothLeScanner(mManagerService);
}
}
return sBluetoothLeScanner;
}
/**
* Return true if Bluetooth is currently enabled and ready for use.
* <p>Equivalent to:
* <code>getBluetoothState() == STATE_ON</code>
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
*
* @return true if the local adapter is turned on
*/
public boolean isEnabled() {
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.isEnabled();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return false;
}
/**
* Get the current state of the local Bluetooth adapter.
* <p>Possible return values are
* {@link #STATE_OFF},
* {@link #STATE_TURNING_ON},
* {@link #STATE_ON},
* {@link #STATE_TURNING_OFF}.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
*
* @return current state of Bluetooth adapter
*/
public int getState() {
try {
synchronized(mManagerCallback) {
if (mService != null)
{
int state= mService.getState();
if (VDBG) Log.d(TAG, "" + hashCode() + ": getState(). Returning " + state);
return state;
}
// TODO(BT) there might be a small gap during STATE_TURNING_ON that
// mService is null, handle that case
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
if (DBG) Log.d(TAG, "" + hashCode() + ": getState() : mService = null. Returning STATE_OFF");
return STATE_OFF;
}
/**
* Turn on the local Bluetooth adapter—do not use without explicit
* user action to turn on Bluetooth.
* <p>This powers on the underlying Bluetooth hardware, and starts all
* Bluetooth system services.
* <p class="caution"><strong>Bluetooth should never be enabled without
* direct user consent</strong>. 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.</p>
* <p>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.
* <p>Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN}
* permission
*
* @return true to indicate adapter startup has begun, or false on
* immediate error
*/
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.
* <p>This gracefully shuts down all Bluetooth connections, stops Bluetooth
* system services, and powers down the underlying Bluetooth hardware.
* <p class="caution"><strong>Bluetooth should never be disabled without
* direct user consent</strong>. The {@link #disable()} method is
* provided only for applications that include a user interface for changing
* system settings, such as a "power manager" app.</p>
* <p>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.
* <p>Requires the {@link android.Manifest.permission#BLUETOOTH_ADMIN}
* permission
*
* @return true to indicate adapter shutdown has begun, or false on
* immediate error
*/
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.
*
* <p>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.
* <p>For example, "00:11:22:AA:BB:CC".
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
*
* @return Bluetooth hardware address as string
*/
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.
* <p>This name is visible to remote Bluetooth devices.
* <p>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.
*
* <p>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 {
synchronized(mManagerCallback) {
if (mService != null) return mService.configHciSnoopLog(enable);
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return false;
}
/**
* Get the UUIDs supported by the local Bluetooth adapter.
*
* <p>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 {
synchronized(mManagerCallback) {
if (mService != null) return mService.getUuids();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return null;
}
/**
* Set the friendly Bluetooth name of the local Bluetooth adapter.
* <p>This name is visible to remote Bluetooth devices.
* <p>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.
* <p>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.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}
*
* @param name a valid Bluetooth name
* @return true if the name was set, false otherwise
*/
public boolean setName(String name) {
if (getState() != STATE_ON) return false;
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.setName(name);
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return false;
}
/**
* Get the current Bluetooth scan mode of the local Bluetooth adapter.
* <p>The Bluetooth scan mode determines if the local adapter is
* connectable and/or discoverable from remote Bluetooth devices.
* <p>Possible values are:
* {@link #SCAN_MODE_NONE},
* {@link #SCAN_MODE_CONNECTABLE},
* {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}.
* <p>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.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
*
* @return scan mode
*/
public int getScanMode() {
if (getState() != STATE_ON) return SCAN_MODE_NONE;
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.getScanMode();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return SCAN_MODE_NONE;
}
/**
* Set the Bluetooth scan mode of the local Bluetooth adapter.
* <p>The Bluetooth scan mode determines if the local adapter is
* connectable and/or discoverable from remote Bluetooth devices.
* <p>For privacy reasons, discoverable mode is automatically turned off
* after <code>duration</code> seconds. For example, 120 seconds should be
* enough for a remote device to initiate and complete its discovery
* process.
* <p>Valid scan mode values are:
* {@link #SCAN_MODE_NONE},
* {@link #SCAN_MODE_CONNECTABLE},
* {@link #SCAN_MODE_CONNECTABLE_DISCOVERABLE}.
* <p>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.
* <p>Requires {@link android.Manifest.permission#WRITE_SECURE_SETTINGS}
* <p>Applications cannot set the scan mode. They should use
* <code>startActivityForResult(
* BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE})
* </code>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(int mode, int duration) {
if (getState() != STATE_ON) return false;
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.setScanMode(mode, duration);
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
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 {
synchronized(mManagerCallback) {
if (mService != null) return mService.getDiscoverableTimeout();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return -1;
}
/** @hide */
public void setDiscoverableTimeout(int timeout) {
if (getState() != STATE_ON) return;
try {
synchronized(mManagerCallback) {
if (mService != null) mService.setDiscoverableTimeout(timeout);
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
}
/**
* Start the remote device discovery process.
* <p>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.
* <p>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.
* <p>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.
* <p>Device discovery will only find remote devices that are currently
* <i>discoverable</i> (inquiry scan enabled). Many Bluetooth devices are
* not discoverable by default, and need to be entered into a special mode.
* <p>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.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}.
*
* @return true on success, false on error
*/
public boolean startDiscovery() {
if (getState() != STATE_ON) return false;
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.startDiscovery();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return false;
}
/**
* Cancel the current device discovery process.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH_ADMIN}.
* <p>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.
* <p>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
*/
public boolean cancelDiscovery() {
if (getState() != STATE_ON) return false;
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.cancelDiscovery();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
return false;
}
/**
* Return true if the local Bluetooth adapter is currently in the device
* discovery process.
* <p>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.
* <p>Applications can also register for {@link #ACTION_DISCOVERY_STARTED}
* or {@link #ACTION_DISCOVERY_FINISHED} to be notified when discovery
* starts or completes.
* <p>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.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}.
*
* @return true if discovering
*/
public boolean isDiscovering() {
if (getState() != STATE_ON) return false;
try {
synchronized(mManagerCallback) {
if (mService != null ) return mService.isDiscovering();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
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 {
return mService.isMultiAdvertisementSupported();
} catch (RemoteException e) {
Log.e(TAG, "failed to get isMultipleAdvertisementSupported, error: ", e);
}
return false;
}
/**
* Returns whether peripheral mode is supported.
*
* @hide
*/
public boolean isPeripheralModeSupported() {
if (getState() != STATE_ON) return false;
try {
return mService.isPeripheralModeSupported();
} catch (RemoteException e) {
Log.e(TAG, "failed to get peripheral mode capability: ", e);
}
return false;
}
/**
* Return true if offloaded filters are supported
*
* @return true if chipset supports on-chip filtering
*/
public boolean isOffloadedFilteringSupported() {
if (getState() != STATE_ON) return false;
try {
return mService.isOffloadedFilteringSupported();
} catch (RemoteException e) {
Log.e(TAG, "failed to get isOffloadedFilteringSupported, error: ", e);
}
return false;
}
/**
* Return true if offloaded scan batching is supported
*
* @return true if chipset supports on-chip scan batching
*/
public boolean isOffloadedScanBatchingSupported() {
if (getState() != STATE_ON) return false;
try {
return mService.isOffloadedScanBatchingSupported();
} catch (RemoteException e) {
Log.e(TAG, "failed to get isOffloadedScanBatchingSupported, error: ", 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
* @hide
*/
public BluetoothActivityEnergyInfo getControllerActivityEnergyInfo(int updateType) {
if (getState() != STATE_ON) return null;
try {
BluetoothActivityEnergyInfo record;
if (!mService.isActivityAndEnergyReportingSupported()) {
return null;
}
synchronized(this) {
if (updateType == ACTIVITY_ENERGY_INFO_REFRESHED) {
mService.getActivityEnergyInfoFromController();
wait(CONTROLLER_ENERGY_UPDATE_TIMEOUT_MILLIS);
}
record = mService.reportActivityInfo();
if (record.isValid()) {
return record;
} else {
return null;
}
}
} catch (InterruptedException e) {
Log.e(TAG, "getControllerActivityEnergyInfoCallback wait interrupted: " + e);
} catch (RemoteException e) {
Log.e(TAG, "getControllerActivityEnergyInfoCallback: " + e);
}
return null;
}
/**
* Return the set of {@link BluetoothDevice} objects that are bonded
* (paired) to the local adapter.
* <p>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.
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}.
*
* @return unmodifiable set of {@link BluetoothDevice}, or null on error
*/
public Set<BluetoothDevice> getBondedDevices() {
if (getState() != STATE_ON) {
return toDeviceSet(new BluetoothDevice[0]);
}
try {
synchronized(mManagerCallback) {
if (mService != null) return toDeviceSet(mService.getBondedDevices());
}
return toDeviceSet(new BluetoothDevice[0]);
} catch (RemoteException e) {Log.e(TAG, "", e);}
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.
*
* <p> 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 {
synchronized(mManagerCallback) {
if (mService != null) return mService.getAdapterConnectionState();
}
} catch (RemoteException e) {Log.e(TAG, "getConnectionState:", e);}
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}.
*
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}.
*
* <p> Return value can be one of
* {@link BluetoothProfile#STATE_DISCONNECTED},
* {@link BluetoothProfile#STATE_CONNECTING},
* {@link BluetoothProfile#STATE_CONNECTED},
* {@link BluetoothProfile#STATE_DISCONNECTING}
*/
public int getProfileConnectionState(int profile) {
if (getState() != STATE_ON) return BluetoothProfile.STATE_DISCONNECTED;
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.getProfileConnectionState(profile);
}
} catch (RemoteException e) {
Log.e(TAG, "getProfileConnectionState:", e);
}
return BluetoothProfile.STATE_DISCONNECTED;
}
/**
* Create a listening, secure RFCOMM Bluetooth socket.
* <p>A remote device connecting to this socket will be authenticated and
* communication on this socket will be encrypted.
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
* connections from a listening {@link BluetoothServerSocket}.
* <p>Valid RFCOMM channels are in range 1 to 30.
* <p>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 {
BluetoothServerSocket socket = new BluetoothServerSocket(
BluetoothSocket.TYPE_RFCOMM, true, true, channel);
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;
}
/**
* Create a listening, secure RFCOMM Bluetooth socket with Service Record.
* <p>A remote device connecting to this socket will be authenticated and
* communication on this socket will be encrypted.
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
* connections from a listening {@link BluetoothServerSocket}.
* <p>The system will assign an unused RFCOMM channel to listen on.
* <p>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.
* <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
* connect to this socket from another device using the same {@link UUID}.
* <p>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.
*/
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.
* <p>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.
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
* connections from a listening {@link BluetoothServerSocket}.
* <p>The system will assign an unused RFCOMM channel to listen on.
* <p>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.
* <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
* connect to this socket from another device using the same {@link UUID}.
* <p>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.
*/
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.
* <p>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.
* <p> 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.
* <p>Use {@link BluetoothServerSocket#accept} to retrieve incoming
* connections from a listening {@link BluetoothServerSocket}.
* <p>The system will assign an unused RFCOMM channel to listen on.
* <p>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.
* <p>Use {@link BluetoothDevice#createRfcommSocketToServiceRecord} to
* connect to this socket from another device using the same {@link UUID}.
* <p>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 (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 (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;
}
/**
* Read the local Out of Band Pairing Data
* <p>Requires {@link android.Manifest.permission#BLUETOOTH}
*
* @return Pair<byte[], byte[]> of Hash and Randomizer
*
* @hide
*/
public Pair<byte[], byte[]> readOutOfBandData() {
if (getState() != STATE_ON) return null;
//TODO(BT
/*
try {
byte[] hash;
byte[] randomizer;
byte[] ret = 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<byte[], byte[]>(hash, randomizer);
} catch (RemoteException e) {Log.e(TAG, "", e);}*/
return null;
}
/**
* Get the profile proxy object associated with the profile.
*
* <p>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} or {@link BluetoothProfile#A2DP}.
* @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 {
return false;
}
}
/**
* Close the connection of the profile proxy to the Service.
*
* <p> 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;
}
}
final private IBluetoothManagerCallback mManagerCallback =
new IBluetoothManagerCallback.Stub() {
public void onBluetoothServiceUp(IBluetooth bluetoothService) {
if (VDBG) Log.d(TAG, "onBluetoothServiceUp: " + bluetoothService);
synchronized (mManagerCallback) {
mService = bluetoothService;
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);
synchronized (mManagerCallback) {
mService = null;
if (mLeScanClients != null) mLeScanClients.clear();
if (sBluetoothLeAdvertiser != null) sBluetoothLeAdvertiser.cleanup();
if (sBluetoothLeScanner != null) sBluetoothLeScanner.cleanup();
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);}
}
}
}
}
};
/**
* 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.
*
* <p>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.
*
* <p> 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.
*
* <p> This API is only meant to be used by internal applications. Third
* party applications but use {@link #enable} and {@link #disable} APIs.
*
* <p> 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.
*
* <p>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 {
return mService.changeApplicationBluetoothState(on, new
StateChangeCallbackWrapper(callback), new Binder());
} catch (RemoteException e) {
Log.e(TAG, "changeBluetoothState", e);
}*/
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<BluetoothDevice> toDeviceSet(BluetoothDevice[] devices) {
Set<BluetoothDevice> deviceSet = new HashSet<BluetoothDevice>(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"
* <p>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<IBluetoothManagerCallback> mProxyServiceStateCallbacks = new ArrayList<IBluetoothManagerCallback>();
/*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.
*
* <p>Results of the scan are reported using the
* {@link LeScanCallback#onLeScan} callback.
*
* <p>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
public boolean startLeScan(LeScanCallback callback) {
return startLeScan(null, callback);
}
/**
* Starts a scan for Bluetooth LE devices, looking for devices that
* advertise given services.
*
* <p>Devices which advertise all specified services are reported using the
* {@link LeScanCallback#onLeScan} callback.
*
* <p>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
public boolean startLeScan(final UUID[] serviceUuids, final LeScanCallback callback) {
if (DBG) Log.d(TAG, "startLeScan(): " + 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<ParcelUuid> uuids = new ArrayList<ParcelUuid>();
for (UUID uuid : serviceUuids) {
uuids.add(new ParcelUuid(uuid));
}
List<ParcelUuid> 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<ScanFilter> filters = new ArrayList<ScanFilter>();
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.
*
* <p>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
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);
}
}
}
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