# BluetoothConfigManager Summary:[Constants](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#constants)\|[Methods](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#pubmethods)\|[Inherited Methods](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#inhmethods)\|[\[Expand All\]](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#) # BluetoothConfigManager ` public class BluetoothConfigManager ` ` extends `[Object](https://developer.android.com/reference/java/lang/Object)` `` ` |---|------------------------------------------------------------| | [java.lang.Object](https://developer.android.com/reference/java/lang/Object) || | ↳ | com.google.android.things.bluetooth.BluetoothConfigManager |
*** ** * ** *** This class is used to control various configuration options for the Bluetooth stack. For eg., it can be used to fetch or control the Bluetooth Class of Device ## Summary | ### Constants || |-------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `int` | [IO_CAPABILITY_IN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IN) Device only has a keyboard for entry but no display. | | `int` | [IO_CAPABILITY_IO](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IO) Device has a display and the ability to input Yes/No. | | `int` | [IO_CAPABILITY_KBDISP](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_KBDISP) Device has a display and a full keyboard. | | `int` | [IO_CAPABILITY_NONE](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_NONE) Device has no Input or Output capability. | | `int` | [IO_CAPABILITY_OUT](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_OUT) Device only has a display. | | `int` | [IO_CAPABILITY_UNKNOWN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_UNKNOWN) The Input/Output capability of the device is unknown. | | ### Public methods || |----------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[BluetoothClass](https://developer.android.com/reference/android/bluetooth/BluetoothClass.html) | ` `[getBluetoothClass](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#getBluetoothClass())`() ` Get current BluetoothClass (CoD) value of local Bluetooth adapter. | | ` static `[BluetoothConfigManager](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager) | ` `[getInstance](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#getInstance())`() ` Fetch an instance of[BluetoothConfigManager](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager) | | ` int` | ` `[getIoCapability](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#getIoCapability())`() ` Returns the Input/Output capability of the device for classic Bluetooth. | | ` int` | ` `[getLeIoCapability](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#getLeIoCapability())`() ` Returns the Input/Output capability of the device for BLE operations. | | ` boolean` | ` `[setBluetoothClass](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#setBluetoothClass(android.bluetooth.BluetoothClass))`(`[BluetoothClass](https://developer.android.com/reference/android/bluetooth/BluetoothClass.html)` bluetoothClass) ` Set the Bluetooth Class of Device (CoD) value of local Bluetooth adapter. | | ` boolean` | ` `[setIoCapability](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#setIoCapability(int))`(int capability) ` Sets the Input/Output capability of the device for classic Bluetooth. | | ` boolean` | ` `[setLeIoCapability](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#setLeIoCapability(int))`(int capability) ` Sets the Input/Output capability of the device for BLE operations. | | ### Inherited methods | |-----------------------|---| | [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#)From class` `[java.lang.Object](https://developer.android.com/reference/java/lang/Object)` ` |--------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](https://developer.android.com/reference/java/lang/Object) | ` `[clone](https://developer.android.com/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](https://developer.android.com/reference/java/lang/Object)` obj) ` Indicates whether some other object is "equal to" this one. | | ` void` | ` `[finalize](https://developer.android.com/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](https://developer.android.com/reference/java/lang/Class)`` | ` `[getClass](https://developer.android.com/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this`Object`. | | ` int` | ` `[hashCode](https://developer.android.com/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](https://developer.android.com/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](https://developer.android.com/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](https://developer.android.com/reference/java/lang/String) | ` `[toString](https://developer.android.com/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long, int))`(long millis, int nanos) ` Causes the current thread to wait until another thread invokes the[notify()](https://developer.android.com/reference/java/lang/Object.html#notify())method or the[notifyAll()](https://developer.android.com/reference/java/lang/Object.html#notifyAll())method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait(long))`(long millis) ` Causes the current thread to wait until either another thread invokes the[notify()](https://developer.android.com/reference/java/lang/Object.html#notify())method or the[notifyAll()](https://developer.android.com/reference/java/lang/Object.html#notifyAll())method for this object, or a specified amount of time has elapsed. | | ` final void` | ` `[wait](https://developer.android.com/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until another thread invokes the[notify()](https://developer.android.com/reference/java/lang/Object.html#notify())method or the[notifyAll()](https://developer.android.com/reference/java/lang/Object.html#notifyAll())method for this object. | || ## Constants ### IO_CAPABILITY_IN ``` int IO_CAPABILITY_IN ``` Device only has a keyboard for entry but no display.
Constant Value: 2 (0x00000002) ### IO_CAPABILITY_IO ``` int IO_CAPABILITY_IO ``` Device has a display and the ability to input Yes/No.
Constant Value: 1 (0x00000001) ### IO_CAPABILITY_KBDISP ``` int IO_CAPABILITY_KBDISP ``` Device has a display and a full keyboard.
Constant Value: 4 (0x00000004) ### IO_CAPABILITY_NONE ``` int IO_CAPABILITY_NONE ``` Device has no Input or Output capability.
Constant Value: 3 (0x00000003) ### IO_CAPABILITY_OUT ``` int IO_CAPABILITY_OUT ``` Device only has a display.
Constant Value: 0 (0x00000000) ### IO_CAPABILITY_UNKNOWN ``` int IO_CAPABILITY_UNKNOWN ``` The Input/Output capability of the device is unknown.
Constant Value: 255 (0x000000ff) ## Public methods ### getBluetoothClass ``` BluetoothClass getBluetoothClass () ``` Get current BluetoothClass (CoD) value of local Bluetooth adapter.
| Returns || |-------------------------------------------------------------------------------------------------|---------------------------------------------------| | [BluetoothClass](https://developer.android.com/reference/android/bluetooth/BluetoothClass.html) | BluetoothClass of local Bluetooth adapter.
| | Throws || |--------------------------------------------------------------------------------------------------|---------------------------------------------| | [IllegalStateException](https://developer.android.com/reference/java/lang/IllegalStateException) | when the connection to the server has died. | **See also:** - [Bluetooth CoD](https://www.bluetooth.com/specifications/assigned-numbers/baseband) ### getInstance ``` BluetoothConfigManager getInstance () ``` Fetch an instance of[BluetoothConfigManager](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager)
| Returns || |------------------------------------------------------------------------------------------------------------------------------|--------| | [BluetoothConfigManager](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager) |
| | Throws || |--------------------------------------------------------------------------------------------------|----------------------------------------------------------------| | [IllegalStateException](https://developer.android.com/reference/java/lang/IllegalStateException) | if a connection cannot be established to the back-end service. | ### getIoCapability ``` int getIoCapability () ``` Returns the Input/Output capability of the device for classic Bluetooth.
| Returns || |-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `int` | Input/Output capability of the device. One of[IO_CAPABILITY_OUT](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_OUT),[IO_CAPABILITY_IO](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IO),[IO_CAPABILITY_IN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IN),[IO_CAPABILITY_NONE](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_NONE),[IO_CAPABILITY_KBDISP](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_KBDISP)or[IO_CAPABILITY_UNKNOWN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_UNKNOWN).
| ### getLeIoCapability ``` int getLeIoCapability () ``` Returns the Input/Output capability of the device for BLE operations.
| Returns || |-------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `int` | Input/Output capability of the device. One of[IO_CAPABILITY_OUT](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_OUT),[IO_CAPABILITY_IO](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IO),[IO_CAPABILITY_IN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IN),[IO_CAPABILITY_NONE](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_NONE),[IO_CAPABILITY_KBDISP](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_KBDISP)or[IO_CAPABILITY_UNKNOWN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_UNKNOWN).
| ### setBluetoothClass ``` boolean setBluetoothClass (BluetoothClass bluetoothClass) ``` Set the Bluetooth Class of Device (CoD) value of local Bluetooth adapter.
| Parameters || |------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------| | `bluetoothClass` | `BluetoothClass`:[BluetoothClass](https://developer.android.com/reference/android/bluetooth/BluetoothClass.html)to set the local adapter to.
| | Returns || |-----------|----------------------------| | `boolean` | result of operation
| | Throws || |--------------------------------------------------------------------------------------------------------|---------------------------------------------| | [IllegalArgumentException](https://developer.android.com/reference/java/lang/IllegalArgumentException) | when BluetoothClass is null. | | [IllegalStateException](https://developer.android.com/reference/java/lang/IllegalStateException) | when the connection to the server has died. | **See also:** - [Bluetooth CoD](https://www.bluetooth.com/specifications/assigned-numbers/baseband) - [BluetoothClassFactory](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothClassFactory) ### setIoCapability ``` boolean setIoCapability (int capability) ``` Sets the Input/Output capability of the device for classic Bluetooth. Changing the Input/Output capability of a device only takes effect on restarting the Bluetooth stack. You would need to restart the stack using[disable()](https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#disable())and[enable()](https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#enable())to see the changes.
| Parameters || |--------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `capability` | `int`: Input/Output capability of the device. One of[IO_CAPABILITY_OUT](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_OUT),[IO_CAPABILITY_IO](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IO),[IO_CAPABILITY_IN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IN),[IO_CAPABILITY_NONE](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_NONE)or[IO_CAPABILITY_KBDISP](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_KBDISP).
| | Returns || |-----------|----------------------------| | `boolean` | result of operation
| | Throws || |--------------------------------------------------------------------------------------------------------|-----------------------------| | [IllegalArgumentException](https://developer.android.com/reference/java/lang/IllegalArgumentException) | when capability is invalid. | ### setLeIoCapability ``` boolean setLeIoCapability (int capability) ``` Sets the Input/Output capability of the device for BLE operations. Changing the Input/Output capability of a device only takes effect on restarting the Bluetooth stack. You would need to restart the stack using[disable()](https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#disable())and[enable()](https://developer.android.com/reference/android/bluetooth/BluetoothAdapter.html#enable())to see the changes.
| Parameters || |--------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | `capability` | `int`: Input/Output capability of the device. One of[IO_CAPABILITY_OUT](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_OUT),[IO_CAPABILITY_IO](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IO),[IO_CAPABILITY_IN](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_IN),[IO_CAPABILITY_NONE](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_NONE)or[IO_CAPABILITY_KBDISP](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager#IO_CAPABILITY_KBDISP).
| | Returns || |-----------|----------------------------| | `boolean` | result of operation
| | Throws || |--------------------------------------------------------------------------------------------------------|-----------------------------| | [IllegalArgumentException](https://developer.android.com/reference/java/lang/IllegalArgumentException) | when capability is invalid. | - ## Interfaces - [BluetoothConnectionCallback](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConnectionCallback) - [BluetoothPairingCallback](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothPairingCallback) - ## Classes - [BluetoothClassFactory](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothClassFactory) - [BluetoothConfigManager](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConfigManager) - [BluetoothConnectionManager](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothConnectionManager) - [BluetoothPairingCallback.PairingError](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothPairingCallback.PairingError) - [BluetoothProfile](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothProfile) - [BluetoothProfileManager](https://developer.android.com/reference/com/google/android/things/bluetooth/BluetoothProfileManager) - [ConnectionParams](https://developer.android.com/reference/com/google/android/things/bluetooth/ConnectionParams) - [PairingParams](https://developer.android.com/reference/com/google/android/things/bluetooth/PairingParams)