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)}. * *
Note: * Most methods require the {@link android.Manifest.permission#BLUETOOTH} * permission and some also require the * {@link android.Manifest.permission#BLUETOOTH_ADMIN} permission. * *
For more information about using Bluetooth, read the * Bluetooth developer guide.
*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;
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 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 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:
* Requires {@link android.Manifest.permission#BLUETOOTH}
*
* @return true if the local adapter is turned on
*/
@RequiresPermission(Manifest.permission.BLUETOOTH)
public boolean isEnabled() {
try {
synchronized(mManagerCallback) {
if (mService != null) return mService.isEnabled();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
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) {
if (mService == null) {
Log.e(TAG, "mService is null");
return;
}
try {
if (enable) {
mService.onLeServiceUp(); //NA:TODO implementation pending
} else {
mService.onBrEdrDown(); //NA:TODO implementation pending
}
} catch (RemoteException e) {
Log.e(TAG, "", e);
}
}
/**
* 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() {
try {
synchronized(mManagerCallback) {
if (mService != null)
{
int state= mService.getState();
if (VDBG) Log.d(TAG, "" + hashCode() + ": getState(). Returning " + state);
//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;
}
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);}
return STATE_OFF;
}
/**
* 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() {
try {
synchronized(mManagerCallback) {
if (mService != null)
{
int state= mService.getState();
if (VDBG) Log.d(TAG,"getLeState() returning " + state);
return state;
}
}
} catch (RemoteException e) {
Log.e(TAG, "", e);
}
return BluetoothAdapter.STATE_OFF;
}
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() {
int state = STATE_OFF;
if (isEnabled() == true){
if (DBG) Log.d(TAG, "enable(): BT is already enabled..!");
return true;
}
//Use service interface to get the exact state
if (mService != null) {
try {
state = mService.getState();
} catch (RemoteException e) {Log.e(TAG, "", e);}
}
if (state == BluetoothAdapter.STATE_BLE_ON) {
Log.e(TAG, "BT is in BLE_ON State");
notifyUserAction(true);
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 {
synchronized(mManagerCallback) {
if (mService != null) return mService.configHciSnoopLog(enable);
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
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 {
if (mService != null) {
return mService.factoryReset();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
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 {
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.
* 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 {
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.
* 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 {
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.
* 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 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
* 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 {
synchronized(mManagerCallback) {
if (mService != null) return mService.startDiscovery();
}
} catch (RemoteException e) {Log.e(TAG, "", e);}
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 {
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.
* 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 {
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 {@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 {
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 (!getLeAccess()) 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 (!getLeAccess()) return false;
try {
return mService.isOffloadedScanBatchingSupported();
} catch (RemoteException e) {
Log.e(TAG, "failed to get isOffloadedScanBatchingSupported, error: ", e);
}
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
* @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.
* 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 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}.
*
* 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 {
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.
* 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 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 {
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;
}
}
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);}
}
}
}
}
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 {
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 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 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(): " + 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 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);
}
}
}
getBluetoothState() == STATE_ON
* duration seconds. For example, 120 seconds should be
* enough for a remote device to initiate and complete its discovery
* process.
* 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 {
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.
*