Android APIs
public abstract class

BluetoothGattServerCallback

extends Object
java.lang.Object
   ↳ android.bluetooth.BluetoothGattServerCallback

Class Overview

This abstract class is used to implement BluetoothGattServer callbacks.

Summary

Public Constructors
BluetoothGattServerCallback()
Public Methods
void onCharacteristicReadRequest(BluetoothDevice device, int requestId, int offset, BluetoothGattCharacteristic characteristic)
A remote client has requested to read a local characteristic.
void onCharacteristicWriteRequest(BluetoothDevice device, int requestId, BluetoothGattCharacteristic characteristic, boolean preparedWrite, boolean responseNeeded, int offset, byte[] value)
A remote client has requested to write to a local characteristic.
void onConnectionStateChange(BluetoothDevice device, int status, int newState)
Callback indicating when a remote device has been connected or disconnected.
void onDescriptorReadRequest(BluetoothDevice device, int requestId, int offset, BluetoothGattDescriptor descriptor)
A remote client has requested to read a local descriptor.
void onDescriptorWriteRequest(BluetoothDevice device, int requestId, BluetoothGattDescriptor descriptor, boolean preparedWrite, boolean responseNeeded, int offset, byte[] value)
A remote client has requested to write to a local descriptor.
void onExecuteWrite(BluetoothDevice device, int requestId, boolean execute)
Execute all pending write operations for this device.
void onMtuChanged(BluetoothDevice device, int mtu)
Callback indicating the MTU for a given device connection has changed.
void onNotificationSent(BluetoothDevice device, int status)
Callback invoked when a notification or indication has been sent to a remote device.
void onServiceAdded(int status, BluetoothGattService service)
Indicates whether a local service has been added successfully.
[Expand]
Inherited Methods
From class java.lang.Object

Public Constructors

public BluetoothGattServerCallback ()

Added in API level 18

Public Methods

public void onCharacteristicReadRequest (BluetoothDevice device, int requestId, int offset, BluetoothGattCharacteristic characteristic)

Added in API level 18

A remote client has requested to read a local characteristic.

An application must call sendResponse(BluetoothDevice, int, int, int, byte[]) to complete the request.

Parameters
device BluetoothDevice: The remote device that has requested the read operation
requestId int: The Id of the request
offset int: Offset into the value of the characteristic
characteristic BluetoothGattCharacteristic: Characteristic to be read

public void onCharacteristicWriteRequest (BluetoothDevice device, int requestId, BluetoothGattCharacteristic characteristic, boolean preparedWrite, boolean responseNeeded, int offset, byte[] value)

Added in API level 18

A remote client has requested to write to a local characteristic.

An application must call sendResponse(BluetoothDevice, int, int, int, byte[]) to complete the request.

Parameters
device BluetoothDevice: The remote device that has requested the write operation
requestId int: The Id of the request
characteristic BluetoothGattCharacteristic: Characteristic to be written to.
preparedWrite boolean: true, if this write operation should be queued for later execution.
responseNeeded boolean: true, if the remote device requires a response
offset int: The offset given for the value
value byte: The value the client wants to assign to the characteristic

public void onConnectionStateChange (BluetoothDevice device, int status, int newState)

Added in API level 18

Callback indicating when a remote device has been connected or disconnected.

Parameters
device BluetoothDevice: Remote device that has been connected or disconnected.
status int: Status of the connect or disconnect operation.
newState int: Returns the new connection state. Can be one of STATE_DISCONNECTED or STATE_CONNECTED

public void onDescriptorReadRequest (BluetoothDevice device, int requestId, int offset, BluetoothGattDescriptor descriptor)

Added in API level 18

A remote client has requested to read a local descriptor.

An application must call sendResponse(BluetoothDevice, int, int, int, byte[]) to complete the request.

Parameters
device BluetoothDevice: The remote device that has requested the read operation
requestId int: The Id of the request
offset int: Offset into the value of the characteristic
descriptor BluetoothGattDescriptor: Descriptor to be read

public void onDescriptorWriteRequest (BluetoothDevice device, int requestId, BluetoothGattDescriptor descriptor, boolean preparedWrite, boolean responseNeeded, int offset, byte[] value)

Added in API level 18

A remote client has requested to write to a local descriptor.

An application must call sendResponse(BluetoothDevice, int, int, int, byte[]) to complete the request.

Parameters
device BluetoothDevice: The remote device that has requested the write operation
requestId int: The Id of the request
descriptor BluetoothGattDescriptor: Descriptor to be written to.
preparedWrite boolean: true, if this write operation should be queued for later execution.
responseNeeded boolean: true, if the remote device requires a response
offset int: The offset given for the value
value byte: The value the client wants to assign to the descriptor

public void onExecuteWrite (BluetoothDevice device, int requestId, boolean execute)

Added in API level 18

Execute all pending write operations for this device.

An application must call sendResponse(BluetoothDevice, int, int, int, byte[]) to complete the request.

Parameters
device BluetoothDevice: The remote device that has requested the write operations
requestId int: The Id of the request
execute boolean: Whether the pending writes should be executed (true) or cancelled (false)

public void onMtuChanged (BluetoothDevice device, int mtu)

Added in API level 22

Callback indicating the MTU for a given device connection has changed.

This callback will be invoked if a remote client has requested to change the MTU for a given connection.

Parameters
device BluetoothDevice: The remote device that requested the MTU change
mtu int: The new MTU size

public void onNotificationSent (BluetoothDevice device, int status)

Added in API level 21

Callback invoked when a notification or indication has been sent to a remote device.

When multiple notifications are to be sent, an application must wait for this callback to be received before sending additional notifications.

Parameters
device BluetoothDevice: The remote device the notification has been sent to
status int: GATT_SUCCESS if the operation was successful

public void onServiceAdded (int status, BluetoothGattService service)

Added in API level 18

Indicates whether a local service has been added successfully.

Parameters
status int: Returns GATT_SUCCESS if the service was added successfully.
service BluetoothGattService: The service that has been added