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public
final
class
BluetoothLeAudio
extends Object
implements
BluetoothProfile,
AutoCloseable
java.lang.Object | |
↳ | android.bluetooth.BluetoothLeAudio |
This class provides the public APIs to control the LeAudio profile.
BluetoothLeAudio is a proxy object for controlling the Bluetooth LE Audio
Service via IPC. Use BluetoothAdapter#getProfileProxy
to get
the BluetoothLeAudio proxy object.
Android only supports one set of connected Bluetooth LeAudio device at a time. Each method is protected with its appropriate permission.
Constants | |
---|---|
String |
ACTION_LE_AUDIO_CONNECTION_STATE_CHANGED
Intent used to broadcast the change in connection state of the LeAudio profile. |
Inherited constants |
---|
Public methods | |
---|---|
List<BluetoothDevice>
|
getConnectedDevices()
Get connected devices for this specific profile.
|
int
|
getConnectionState(BluetoothDevice device)
Get the current connection state of the profile
|
List<BluetoothDevice>
|
getDevicesMatchingConnectionStates(int[] states)
Get a list of devices that match any of the given connection
states.
|
Protected methods | |
---|---|
void
|
finalize()
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. |
Inherited methods | |
---|---|
public static final String ACTION_LE_AUDIO_CONNECTION_STATE_CHANGED
Intent used to broadcast the change in connection state of the LeAudio profile. Please note that in the binaural case, there will be two different LE devices for the left and right side and each device will have their own connection state changes.
This intent will have 3 extras:
BluetoothProfile.EXTRA_STATE
- The current state of the profile. BluetoothProfile.EXTRA_PREVIOUS_STATE
- The previous state of the profile.BluetoothDevice#EXTRA_DEVICE
- The remote device. BluetoothProfile.EXTRA_STATE
or BluetoothProfile.EXTRA_PREVIOUS_STATE
can be any of
BluetoothProfile.STATE_DISCONNECTED
, BluetoothProfile.STATE_CONNECTING
,
BluetoothProfile.STATE_CONNECTED
, BluetoothProfile.STATE_DISCONNECTING
.
For apps targeting Build.VERSION_CODES#R
or lower, this
requires the Manifest.permission#BLUETOOTH
permission
which can be gained with a simple <uses-permission>
manifest tag.
For apps targeting Build.VERSION_CODES#S
or or higher,
this requires the Manifest.permission#BLUETOOTH_CONNECT
permission which can be gained with
Activity.requestPermissions(String[], int)
.
Requires Manifest.permission.BLUETOOTH_CONNECT
Constant Value: "android.bluetooth.action.LE_AUDIO_CONNECTION_STATE_CHANGED"
public List<BluetoothDevice> getConnectedDevices ()
Get connected devices for this specific profile.
Return the set of devices which are in state STATE_CONNECTED
For apps targeting Build.VERSION_CODES#S
or or higher,
this requires the Manifest.permission#BLUETOOTH_CONNECT
permission which can be gained with
Activity.requestPermissions(String[], int)
.
Requires Manifest.permission.BLUETOOTH_CONNECT
Returns | |
---|---|
List<BluetoothDevice> |
This value cannot be null . |
public int getConnectionState (BluetoothDevice device)
Get the current connection state of the profile
For apps targeting Build.VERSION_CODES#R
or lower, this
requires the Manifest.permission#BLUETOOTH
permission
which can be gained with a simple <uses-permission>
manifest tag.
For apps targeting Build.VERSION_CODES#S
or or higher,
this requires the Manifest.permission#BLUETOOTH_CONNECT
permission which can be gained with
Activity.requestPermissions(String[], int)
.
Requires Manifest.permission.BLUETOOTH_CONNECT
Parameters | |
---|---|
device |
BluetoothDevice : This value cannot be null . |
Returns | |
---|---|
int |
Value is BluetoothProfile.STATE_DISCONNECTED , BluetoothProfile.STATE_CONNECTING , BluetoothProfile.STATE_CONNECTED , or BluetoothProfile.STATE_DISCONNECTING |
public List<BluetoothDevice> getDevicesMatchingConnectionStates (int[] states)
Get a list of devices that match any of the given connection states.
If none of the devices match any of the given states,
an empty list will be returned.
For apps targeting Build.VERSION_CODES#S
or or higher,
this requires the Manifest.permission#BLUETOOTH_CONNECT
permission which can be gained with
Activity.requestPermissions(String[], int)
.
Requires Manifest.permission.BLUETOOTH_CONNECT
Parameters | |
---|---|
states |
int : This value cannot be null . |
Returns | |
---|---|
List<BluetoothDevice> |
This value cannot be null . |
protected void finalize ()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
A subclass overrides the finalize
method to dispose of
system resources or to perform other cleanup.
The general contract of finalize
is that it is invoked
if and when the Java™ virtual
machine has determined that there is no longer any
means by which this object can be accessed by any thread that has
not yet died, except as a result of an action taken by the
finalization of some other object or class which is ready to be
finalized. The finalize
method may take any action, including
making this object available again to other threads; the usual purpose
of finalize
, however, is to perform cleanup actions before
the object is irrevocably discarded. For example, the finalize method
for an object that represents an input/output connection might perform
explicit I/O transactions to break the connection before the object is
permanently discarded.
The finalize
method of class Object
performs no
special action; it simply returns normally. Subclasses of
Object
may override this definition.
The Java programming language does not guarantee which thread will
invoke the finalize
method for any given object. It is
guaranteed, however, that the thread that invokes finalize will not
be holding any user-visible synchronization locks when finalize is
invoked. If an uncaught exception is thrown by the finalize method,
the exception is ignored and finalization of that object terminates.
After the finalize
method has been invoked for an object, no
further action is taken until the Java virtual machine has again
determined that there is no longer any means by which this object can
be accessed by any thread that has not yet died, including possible
actions by other objects or classes which are ready to be finalized,
at which point the object may be discarded.
The finalize
method is never invoked more than once by a Java
virtual machine for any given object.
Any exception thrown by the finalize
method causes
the finalization of this object to be halted, but is otherwise
ignored.