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Summary: Ctors | Methods | Inherited Methods

BluetoothGattCallback

public abstract class BluetoothGattCallback
extends Object

java.lang.Object
↳	android.bluetooth.BluetoothGattCallback

This abstract class is used to implement BluetoothGatt callbacks.

Summary

Public constructors
`BluetoothGattCallback()`

Public methods
`void`	`onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic)` Callback triggered as a result of a remote characteristic notification.
`void`	`onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status)` Callback reporting the result of a characteristic read operation.
`void`	`onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status)` Callback indicating the result of a characteristic write operation.
`void`	`onConnectionStateChange(BluetoothGatt gatt, int status, int newState)` Callback indicating when GATT client has connected/disconnected to/from a remote GATT server.
`void`	`onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status)` Callback reporting the result of a descriptor read operation.
`void`	`onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status)` Callback indicating the result of a descriptor write operation.
`void`	`onMtuChanged(BluetoothGatt gatt, int mtu, int status)` Callback indicating the MTU for a given device connection has changed.
`void`	`onPhyRead(BluetoothGatt gatt, int txPhy, int rxPhy, int status)` Callback triggered as result of `BluetoothGatt#readPhy`
`void`	`onPhyUpdate(BluetoothGatt gatt, int txPhy, int rxPhy, int status)` Callback triggered as result of `BluetoothGatt#setPreferredPhy`, or as a result of remote device changing the PHY.
`void`	`onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status)` Callback reporting the RSSI for a remote device connection.
`void`	`onReliableWriteCompleted(BluetoothGatt gatt, int status)` Callback invoked when a reliable write transaction has been completed.
`void`	`onServiceChanged(BluetoothGatt gatt)` Callback indicating service changed event is received Receiving this event means that the GATT database is out of sync with the remote device.
`void`	`onServicesDiscovered(BluetoothGatt gatt, int status)` Callback invoked when the list of remote services, characteristics and descriptors for the remote device have been updated, ie new services have been discovered.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `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(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

BluetoothGattCallback

public BluetoothGattCallback ()

Public methods

onCharacteristicChanged

public void onCharacteristicChanged (BluetoothGatt gatt, 
                BluetoothGattCharacteristic characteristic)

Callback triggered as a result of a remote characteristic notification.

Parameters
`gatt`	`BluetoothGatt`: GATT client the characteristic is associated with
`characteristic`	`BluetoothGattCharacteristic`: Characteristic that has been updated as a result of a remote notification event.

onCharacteristicRead

public void onCharacteristicRead (BluetoothGatt gatt, 
                BluetoothGattCharacteristic characteristic, 
                int status)

Callback reporting the result of a characteristic read operation.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#readCharacteristic`
`characteristic`	`BluetoothGattCharacteristic`: Characteristic that was read from the associated remote device.
`status`	`int`: `BluetoothGatt#GATT_SUCCESS` if the read operation was completed successfully.

onCharacteristicWrite

public void onCharacteristicWrite (BluetoothGatt gatt, 
                BluetoothGattCharacteristic characteristic, 
                int status)

Callback indicating the result of a characteristic write operation.

If this callback is invoked while a reliable write transaction is in progress, the value of the characteristic represents the value reported by the remote device. An application should compare this value to the desired value to be written. If the values don't match, the application must abort the reliable write transaction.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#writeCharacteristic`
`characteristic`	`BluetoothGattCharacteristic`: Characteristic that was written to the associated remote device.
`status`	`int`: The result of the write operation `BluetoothGatt#GATT_SUCCESS` if the operation succeeds.

onConnectionStateChange

public void onConnectionStateChange (BluetoothGatt gatt, 
                int status, 
                int newState)

Callback indicating when GATT client has connected/disconnected to/from a remote GATT server.

Parameters
`gatt`	`BluetoothGatt`: GATT client
`status`	`int`: Status of the connect or disconnect operation. `BluetoothGatt.GATT_SUCCESS` if the operation succeeds.
`newState`	`int`: Returns the new connection state. Can be one of `BluetoothProfile.STATE_DISCONNECTED` or `BluetoothProfile#STATE_CONNECTED`

onDescriptorRead

public void onDescriptorRead (BluetoothGatt gatt, 
                BluetoothGattDescriptor descriptor, 
                int status)

Callback reporting the result of a descriptor read operation.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#readDescriptor`
`descriptor`	`BluetoothGattDescriptor`: Descriptor that was read from the associated remote device.
`status`	`int`: `BluetoothGatt#GATT_SUCCESS` if the read operation was completed successfully

onDescriptorWrite

public void onDescriptorWrite (BluetoothGatt gatt, 
                BluetoothGattDescriptor descriptor, 
                int status)

Callback indicating the result of a descriptor write operation.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#writeDescriptor`
`descriptor`	`BluetoothGattDescriptor`: Descriptor that was writte to the associated remote device.
`status`	`int`: The result of the write operation `BluetoothGatt#GATT_SUCCESS` if the operation succeeds.

onMtuChanged

public void onMtuChanged (BluetoothGatt gatt, 
                int mtu, 
                int status)

Callback indicating the MTU for a given device connection has changed. This callback is triggered in response to the BluetoothGatt#requestMtu function, or in response to a connection event.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#requestMtu`
`mtu`	`int`: The new MTU size
`status`	`int`: `BluetoothGatt#GATT_SUCCESS` if the MTU has been changed successfully

onPhyRead

public void onPhyRead (BluetoothGatt gatt, 
                int txPhy, 
                int rxPhy, 
                int status)

Callback triggered as result of BluetoothGatt#readPhy

Parameters
`gatt`	`BluetoothGatt`: GATT client
`txPhy`	`int`: the transmitter PHY in use. One of `BluetoothDevice#PHY_LE_1M`, `BluetoothDevice.PHY_LE_2M`, and `BluetoothDevice#PHY_LE_CODED`.
`rxPhy`	`int`: the receiver PHY in use. One of `BluetoothDevice#PHY_LE_1M`, `BluetoothDevice.PHY_LE_2M`, and `BluetoothDevice#PHY_LE_CODED`.
`status`	`int`: Status of the PHY read operation. `BluetoothGatt#GATT_SUCCESS` if the operation succeeds.

onPhyUpdate

public void onPhyUpdate (BluetoothGatt gatt, 
                int txPhy, 
                int rxPhy, 
                int status)

Callback triggered as result of BluetoothGatt#setPreferredPhy, or as a result of remote device changing the PHY.

Parameters
`gatt`	`BluetoothGatt`: GATT client
`txPhy`	`int`: the transmitter PHY in use. One of `BluetoothDevice#PHY_LE_1M`, `BluetoothDevice.PHY_LE_2M`, and `BluetoothDevice#PHY_LE_CODED`.
`rxPhy`	`int`: the receiver PHY in use. One of `BluetoothDevice#PHY_LE_1M`, `BluetoothDevice.PHY_LE_2M`, and `BluetoothDevice#PHY_LE_CODED`.
`status`	`int`: Status of the PHY update operation. `BluetoothGatt#GATT_SUCCESS` if the operation succeeds.

onReadRemoteRssi

public void onReadRemoteRssi (BluetoothGatt gatt, 
                int rssi, 
                int status)

Callback reporting the RSSI for a remote device connection. This callback is triggered in response to the BluetoothGatt#readRemoteRssi function.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#readRemoteRssi`
`rssi`	`int`: The RSSI value for the remote device
`status`	`int`: `BluetoothGatt#GATT_SUCCESS` if the RSSI was read successfully

onReliableWriteCompleted

public void onReliableWriteCompleted (BluetoothGatt gatt, 
                int status)

Callback invoked when a reliable write transaction has been completed.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#executeReliableWrite`
`status`	`int`: `BluetoothGatt#GATT_SUCCESS` if the reliable write transaction was executed successfully

onServiceChanged

public void onServiceChanged (BluetoothGatt gatt)

Callback indicating service changed event is received

Receiving this event means that the GATT database is out of sync with the remote device. BluetoothGatt#discoverServices should be called to re-discover the services.

Parameters
`gatt`	`BluetoothGatt`: GATT client involved This value cannot be `null`.

onServicesDiscovered

public void onServicesDiscovered (BluetoothGatt gatt, 
                int status)

Callback invoked when the list of remote services, characteristics and descriptors for the remote device have been updated, ie new services have been discovered.

Parameters
`gatt`	`BluetoothGatt`: GATT client invoked `BluetoothGatt#discoverServices`
`status`	`int`: `BluetoothGatt#GATT_SUCCESS` if the remote device has been explored successfully.

Interfaces

Classes

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BluetoothGattCallback

Summary

Public constructors

Public methods

Inherited methods

Public constructors

BluetoothGattCallback

Public methods

onCharacteristicChanged

onCharacteristicRead

onCharacteristicWrite

onConnectionStateChange

onDescriptorRead

onDescriptorWrite

onMtuChanged

onPhyRead

onPhyUpdate

onReadRemoteRssi

onReliableWriteCompleted

onServiceChanged

onServicesDiscovered