# BluetoothProfile
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
# BluetoothProfile
*** ** * ** ***
Kotlin\|[Java](https://developer.android.com/reference/android/bluetooth/BluetoothProfile "View this page in Java")
```
interface BluetoothProfile
```
|--------------------------------------------------------------------------------------------------------------------------|
| [android.bluetooth.BluetoothProfile](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#) |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Known Direct Subclasses [BluetoothA2dp](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothA2dp),[BluetoothCsipSetCoordinator](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothCsipSetCoordinator),[BluetoothGatt](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothGatt),[BluetoothGattServer](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothGattServer),[BluetoothHeadset](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHeadset),[BluetoothHealth](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHealth),[BluetoothHearingAid](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHearingAid),[BluetoothHidDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHidDevice),[BluetoothLeAudio](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothLeAudio) |-----------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------| | [BluetoothA2dp](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothA2dp) | This class provides the public APIs to control the Bluetooth A2DP profile. | | [BluetoothCsipSetCoordinator](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothCsipSetCoordinator) | This class provides the public APIs to control the Bluetooth CSIP set coordinator. | | [BluetoothGatt](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothGatt) | Public API for the Bluetooth GATT Profile. | | [BluetoothGattServer](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothGattServer) | Public API for the Bluetooth GATT Profile server role. | | [BluetoothHeadset](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHeadset) | Public API for controlling the Bluetooth Headset Service. | | [BluetoothHealth](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHealth) | Public API for Bluetooth Health Profile. | | [BluetoothHearingAid](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHearingAid) | This class provides the public APIs to control the Hearing Aid profile. | | [BluetoothHidDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothHidDevice) | Provides the public APIs to control the Bluetooth HID Device profile. | | [BluetoothLeAudio](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothLeAudio) | This class provides the public APIs to control the LeAudio profile. | |
Public APIs for the Bluetooth Profiles.
Clients should call[BluetoothAdapter.getProfileProxy](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothAdapter#getProfileProxy(android.content.Context,%20android.bluetooth.BluetoothProfile.ServiceListener,%20kotlin.Int)), to get the Profile Proxy. Each public profile implements this interface.
## Summary
| Nested classes ||
|----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| abstract | [ServiceListener](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile.ServiceListener) An interface for notifying BluetoothProfile IPC clients when they have been connected or disconnected to the service. |
| Constants ||
|----------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [A2DP](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#A2DP:kotlin.Int) Advanced Audio Distribution Profile (A2DP) |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [CSIP_SET_COORDINATOR](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#CSIP_SET_COORDINATOR:kotlin.Int) Coordinated Set Identification Profile (CSIP) set coordinator |
| static[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | [EXTRA_PREVIOUS_STATE](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#EXTRA_PREVIOUS_STATE:kotlin.String) Extra for the connection state intents of the individual profiles. |
| static[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | [EXTRA_PROFILE](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#EXTRA_PROFILE:kotlin.String) Extra for the[BluetoothProfile](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#)that the intent applies to. |
| static[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | [EXTRA_STATE](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#EXTRA_STATE:kotlin.String) Extra for the connection state intents of the individual profiles. |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [GATT](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#GATT:kotlin.Int) Generic Attribute Profile (GATT) |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [GATT_SERVER](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#GATT_SERVER:kotlin.Int) Generic Attribute Profile (GATT) Server |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [HAP_CLIENT](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#HAP_CLIENT:kotlin.Int)
|
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [HEADSET](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#HEADSET:kotlin.Int) Headset and Handsfree profile |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [HEALTH](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#HEALTH:kotlin.Int) Health Profile |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [HEARING_AID](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#HEARING_AID:kotlin.Int) Hearing Aid Device |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [HID_DEVICE](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#HID_DEVICE:kotlin.Int) Human Interface Device (HID) Device |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [LE_AUDIO](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#LE_AUDIO:kotlin.Int) LE Audio Device |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [SAP](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#SAP:kotlin.Int) SIM Access Profile (SAP) |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [STATE_CONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTED:kotlin.Int) The profile is in connected state |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [STATE_CONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTING:kotlin.Int) The profile is in connecting state |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [STATE_DISCONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTED:kotlin.Int) The profile is in disconnected state |
| static[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [STATE_DISCONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTING:kotlin.Int) The profile is in disconnecting state |
| Public methods ||
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| abstract[MutableList](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-list/index.html)\<[BluetoothDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothDevice)!\>! | [getConnectedDevices](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#getConnectedDevices())`()` Get connected devices for this specific profile. |
| abstract[Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | [getConnectionState](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#getConnectionState(android.bluetooth.BluetoothDevice))`(`device:` `[BluetoothDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothDevice)!`)` Get the current connection state of the profile |
| abstract[MutableList](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-list/index.html)\<[BluetoothDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothDevice)!\>! | [getDevicesMatchingConnectionStates](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#getDevicesMatchingConnectionStates(kotlin.IntArray))`(`states:` `[IntArray](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int-array/index.html)!`)` Get a list of devices that match any of the given connection states. |
## Constants
### A2DP
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val A2DP: Int
```
Advanced Audio Distribution Profile (A2DP)
Value: 2
### CSIP_SET_COORDINATOR
Added in[API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val CSIP_SET_COORDINATOR: Int
```
Coordinated Set Identification Profile (CSIP) set coordinator
Value: 25
### EXTRA_PREVIOUS_STATE
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val EXTRA_PREVIOUS_STATE: String
```
Extra for the connection state intents of the individual profiles.
This extra represents the previous connection state of the profile of the Bluetooth device.
Value: "android.bluetooth.profile.extra.PREVIOUS_STATE"
### EXTRA_PROFILE
Added in[API level 36.1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val EXTRA_PROFILE: String
```
Extra for the[BluetoothProfile](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#)that the intent applies to.
This extra represents the Bluetooth profile that the intent applies to.
Value: "android.bluetooth.profile.extra.PROFILE"
### EXTRA_STATE
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val EXTRA_STATE: String
```
Extra for the connection state intents of the individual profiles.
This extra represents the current connection state of the profile of the Bluetooth device.
Value: "android.bluetooth.profile.extra.STATE"
### GATT
Added in[API level 18](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val GATT: Int
```
Generic Attribute Profile (GATT)
Value: 7
### GATT_SERVER
Added in[API level 18](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val GATT_SERVER: Int
```
Generic Attribute Profile (GATT) Server
Value: 8
### HAP_CLIENT
Added in[API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val HAP_CLIENT: Int
```
Value: 28
### HEADSET
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val HEADSET: Int
```
Headset and Handsfree profile
Value: 1
### HEALTH
Added in[API level 14](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
Deprecated in[API level 29](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val HEALTH: Int
```
**Deprecated:** *Health Device Profile (HDP) and MCAP protocol are no longer used. New apps should use Bluetooth Low Energy based solutions such as[BluetoothGatt](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothGatt),[android.bluetooth.BluetoothAdapter#listenUsingL2capChannel()](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothAdapter#listenUsingL2capChannel()), or[android.bluetooth.BluetoothDevice#createL2capChannel(int)](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothDevice#createL2capChannel(kotlin.Int))*
Health Profile
Value: 3
### HEARING_AID
Added in[API level 29](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val HEARING_AID: Int
```
Hearing Aid Device
Value: 21
### HID_DEVICE
Added in[API level 28](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val HID_DEVICE: Int
```
Human Interface Device (HID) Device
Value: 19
### LE_AUDIO
Added in[API level 33](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val LE_AUDIO: Int
```
LE Audio Device
Value: 22
### SAP
Added in[API level 23](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val SAP: Int
```
SIM Access Profile (SAP)
Value: 10
### STATE_CONNECTED
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val STATE_CONNECTED: Int
```
The profile is in connected state
Value: 2
### STATE_CONNECTING
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val STATE_CONNECTING: Int
```
The profile is in connecting state
Value: 1
### STATE_DISCONNECTED
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val STATE_DISCONNECTED: Int
```
The profile is in disconnected state
Value: 0
### STATE_DISCONNECTING
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
static val STATE_DISCONNECTING: Int
```
The profile is in disconnecting state
Value: 3
## Public methods
### getConnectedDevices
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
abstract fun getConnectedDevices(): MutableList!
```
Get connected devices for this specific profile.
Return the set of devices which are in state[STATE_CONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTED:kotlin.Int)
| Return ||
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------|
| [MutableList](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-list/index.html)<[BluetoothDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothDevice)!>! | List of devices. The list will be empty on error. |
### getConnectionState
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
abstract fun getConnectionState(device: BluetoothDevice!): Int
```
Get the current connection state of the profile
| Parameters ||
|----------|-------------------------------------------------------------------------------------------------------------------------------|
| `device` | [BluetoothDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothDevice)!:Remote bluetooth device. |
| Return ||
|----------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [Int](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int/index.html) | State of the profile connection. One of[STATE_CONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTED:kotlin.Int),[STATE_CONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTING:kotlin.Int),[STATE_DISCONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTED:kotlin.Int),[STATE_DISCONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTING:kotlin.Int)Value is[android.bluetooth.BluetoothProfile#STATE_DISCONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTED:kotlin.Int),[android.bluetooth.BluetoothProfile#STATE_CONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTING:kotlin.Int),[android.bluetooth.BluetoothProfile#STATE_CONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTED:kotlin.Int), or[android.bluetooth.BluetoothProfile#STATE_DISCONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTING:kotlin.Int) |
### getDevicesMatchingConnectionStates
Added in[API level 11](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels)
```
abstract fun getDevicesMatchingConnectionStates(states: IntArray!): MutableList!
```
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.
| Parameters ||
|----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `states` | [IntArray](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-int-array/index.html)!:Array of states. States can be one of[STATE_CONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTED:kotlin.Int),[STATE_CONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_CONNECTING:kotlin.Int),[STATE_DISCONNECTED](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTED:kotlin.Int),[STATE_DISCONNECTING](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothProfile#STATE_DISCONNECTING:kotlin.Int), |
| Return ||
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------|
| [MutableList](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.collections/-mutable-list/index.html)<[BluetoothDevice](https://developer.android.com/reference/kotlin/android/bluetooth/BluetoothDevice)!>! | List of devices. The list will be empty on error. |