Java Code Examples for android.bluetooth.BluetoothGattDescriptor#getCharacteristic()

The following examples show how to use android.bluetooth.BluetoothGattDescriptor#getCharacteristic() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source Project: SimpleBluetoothLeTerminal File: SerialSocket.java License: MIT License

6 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    delegate.onDescriptorWrite(gatt, descriptor, status);
    if(canceled)
        return;
    if(descriptor.getCharacteristic() == readCharacteristic) {
        Log.d(TAG,"writing read characteristic descriptor finished, status="+status);
        if (status != BluetoothGatt.GATT_SUCCESS) {
            onSerialConnectError(new IOException("write descriptor failed"));
        } else {
            // onCharacteristicChanged with incoming data can happen after writeDescriptor(ENABLE_INDICATION/NOTIFICATION)
            // before confirmed by this method, so receive data can be shown before device is shown as 'Connected'.
            onSerialConnect();
            connected = true;
            Log.d(TAG, "connected");
        }
    }
}

Example 2

Source Project: SimpleBluetoothLeTerminal File: SerialSocket.java License: MIT License

6 votes

@Override
void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    if(descriptor.getCharacteristic() == readCreditsCharacteristic) {
        Log.d(TAG, "writing read credits characteristic descriptor finished, status=" + status);
        if (status != BluetoothGatt.GATT_SUCCESS) {
            onSerialConnectError(new IOException("write credits descriptor failed"));
        } else {
            connectCharacteristics2(gatt);
        }
    }
    if(descriptor.getCharacteristic() == readCharacteristic) {
        Log.d(TAG, "writing read characteristic descriptor finished, status=" + status);
        if (status == BluetoothGatt.GATT_SUCCESS) {
            readCharacteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_NO_RESPONSE);
            writeCharacteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_NO_RESPONSE);
            grantReadCredits();
            // grantReadCredits includes gatt.writeCharacteristic(writeCreditsCharacteristic)
            // but we do not have to wait for confirmation, as it is the last write of connect phase.
        }
    }
}

Example 3

Source Project: sony-smartband-open-api File: BtBridge.java License: MIT License

6 votes

@Override
public void onDescriptorRead( BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status ) {
    if( status != BluetoothGatt.GATT_SUCCESS ) {
        Log.e( CLASS, "onDescriptorRead: Status != SUCCESS: status=" + status );
        return;
    }
    mGatt = gatt;

    if( descriptor == null ) {
        Log.e( CLASS, "onDescriptorRead: null descriptor" );
        return;
    }

    BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
    for( BtBridgeListener listener : mListeners ) {
        listener.onDescriptorRead( characteristic, descriptor );
    }
}

Example 4

Source Project: sony-smartband-open-api File: BtBridge.java License: MIT License

6 votes

@Override
public void onDescriptorWrite( BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status ) {
    if( status != BluetoothGatt.GATT_SUCCESS ) {
        Log.e( CLASS, "onDescriptorWrite: Status != SUCCESS: status=" + status );
        return;
    }
    mGatt = gatt;

    if( descriptor == null ) {
        Log.e( CLASS, "onDescriptorWrite: null descriptor" );
        return;
    }

    BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
    for( BtBridgeListener listener : mListeners ) {
        listener.onDescriptorWrite( characteristic, descriptor );
    }
}

Example 5

Source Project: Bluefruit_LE_Connect_Android File: InfoActivity.java License: MIT License

6 votes

@Override
public void onDataAvailable(BluetoothGattDescriptor descriptor) {
    BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
    BluetoothGattService service = characteristic.getService();
    final String key = new ElementPath(service.getUuid().toString(), service.getInstanceId(), characteristic.getUuid().toString(), descriptor.getUuid().toString(), null, null).getKey();
    final byte[] value = descriptor.getValue();
    mValuesMap.put(key, value);

    // Update UI
    runOnUiThread(new Runnable() {
        @Override
        public void run() {
            updateUI();
        }
    });
}

Example 6

Source Project: Android-BLE-Library File: BleManagerHandler.java License: BSD 3-Clause "New" or "Revised" License

5 votes

/**
 * There was a bug in Android up to 6.0 where the descriptor was written using parent
 * characteristic's write type, instead of always Write With Response, as the spec says.
 * <p>
 * See: <a href="https://android.googlesource.com/platform/frameworks/base/+/942aebc95924ab1e7ea1e92aaf4e7fc45f695a6c%5E%21/#F0">
 * https://android.googlesource.com/platform/frameworks/base/+/942aebc95924ab1e7ea1e92aaf4e7fc45f695a6c%5E%21/#F0</a>
 *
 * @param descriptor the descriptor to be written
 * @return the result of {@link BluetoothGatt#writeDescriptor(BluetoothGattDescriptor)}
 */
private boolean internalWriteDescriptorWorkaround(@Nullable final BluetoothGattDescriptor descriptor) {
	final BluetoothGatt gatt = bluetoothGatt;
	if (gatt == null || descriptor == null || !connected)
		return false;

	final BluetoothGattCharacteristic parentCharacteristic = descriptor.getCharacteristic();
	final int originalWriteType = parentCharacteristic.getWriteType();
	parentCharacteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT);
	final boolean result = gatt.writeDescriptor(descriptor);
	parentCharacteristic.setWriteType(originalWriteType);
	return result;
}

Example 7

Source Project: AsteroidOSSync File: P_Task_ReadDescriptor.java License: GNU General Public License v3.0

5 votes

public P_Task_ReadDescriptor(BleDevice device, BluetoothGattDescriptor descriptor, Type type, boolean requiresBonding, ReadWriteListener readListener, BleTransaction txn, PE_TaskPriority priority)
{
	super(device, descriptor.getCharacteristic(), readListener, requiresBonding, txn, priority);
	
	m_type = type;
	m_descriptorUuid = descriptor.getUuid();
}

Example 8

Source Project: AsteroidOSSync File: P_Task_WriteDescriptor.java License: GNU General Public License v3.0

5 votes

public P_Task_WriteDescriptor(BleDevice device, BluetoothGattDescriptor descriptor, FutureData futureData, boolean requiresBonding, ReadWriteListener readListener, BleTransaction txn, PE_TaskPriority priority)
{
	super(device, descriptor.getCharacteristic(), readListener, requiresBonding, txn, priority);

	m_descriptorUuid = descriptor.getUuid();
	m_futureData = futureData;
}

Example 9

Source Project: xDrip File: DexShareCollectionService.java License: GNU General Public License v3.0

5 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    if (status == BluetoothGatt.GATT_SUCCESS) {
        BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
        Log.d(TAG, "Characteristic onDescriptorWrite ch " + characteristic.getUuid());
        if(mHeartBeatCharacteristic.getUuid().equals(characteristic.getUuid())) {
            state_notifSetupSucess = true;
            setCharacteristicIndication(mReceiveDataCharacteristic);
        }
        if(mReceiveDataCharacteristic.getUuid().equals(characteristic.getUuid())) {
            setCharacteristicIndication(mResponseCharacteristic);
        }
        if(mResponseCharacteristic.getUuid().equals(characteristic.getUuid())) {
            attemptRead();
        }
    } else if ((status & BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) != 0 || (status & BluetoothGatt.GATT_INSUFFICIENT_ENCRYPTION) != 0) {
        if (gatt.getDevice().getBondState() == BluetoothDevice.BOND_NONE) {
            device = gatt.getDevice();
            state_authInProgress = true;
            bondDevice();
        } else {
            Log.e(TAG, "The phone is trying to read from paired device without encryption. Android Bug? Have the dexcom forget whatever device it was previously paired to: ondescriptorwrite code: "+status+ "bond: "+gatt.getDevice().getBondState());
        }
    } else {
        Log.e(TAG, "Unknown error writing descriptor");
    }
}

Example 10

Source Project: xDrip File: DexShareCollectionService.java License: GNU General Public License v3.0

5 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    if (status == BluetoothGatt.GATT_SUCCESS) {
        BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
        Log.d(TAG, "Characteristic onDescriptorWrite ch " + characteristic.getUuid());
        if(mHeartBeatCharacteristic.getUuid().equals(characteristic.getUuid())) {
            state_notifSetupSucess = true;
            setCharacteristicIndication(mReceiveDataCharacteristic);
        }
        if(mReceiveDataCharacteristic.getUuid().equals(characteristic.getUuid())) {
            setCharacteristicIndication(mResponseCharacteristic);
        }
        if(mResponseCharacteristic.getUuid().equals(characteristic.getUuid())) {
            attemptRead();
        }
    } else if ((status & BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) != 0 || (status & BluetoothGatt.GATT_INSUFFICIENT_ENCRYPTION) != 0) {
        if (gatt.getDevice().getBondState() == BluetoothDevice.BOND_NONE) {
            device = gatt.getDevice();
            state_authInProgress = true;
            bondDevice();
        } else {
            Log.e(TAG, "The phone is trying to read from paired device without encryption. Android Bug? Have the dexcom forget whatever device it was previously paired to: ondescriptorwrite code: "+status+ "bond: "+gatt.getDevice().getBondState());
        }
    } else {
        Log.e(TAG, "Unknown error writing descriptor");
    }
}

Example 11

Source Project: xDrip-plus File: DexShareCollectionService.java License: GNU General Public License v3.0

5 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    if (status == BluetoothGatt.GATT_SUCCESS) {
        BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
        Log.d(TAG, "Characteristic onDescriptorWrite ch " + characteristic.getUuid());
        if(mHeartBeatCharacteristic.getUuid().equals(characteristic.getUuid())) {
            state_notifSetupSucess = true;
            setCharacteristicIndication(mReceiveDataCharacteristic);
        }
        if(mReceiveDataCharacteristic.getUuid().equals(characteristic.getUuid())) {
            setCharacteristicIndication(mResponseCharacteristic);
        }
        if(mResponseCharacteristic.getUuid().equals(characteristic.getUuid())) {
            attemptRead();
        }
    } else if ((status & BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) != 0 || (status & BluetoothGatt.GATT_INSUFFICIENT_ENCRYPTION) != 0) {
        if (gatt.getDevice().getBondState() == BluetoothDevice.BOND_NONE) {
            device = gatt.getDevice();
            state_authInProgress = true;
            bondDevice();
        } else {
            Log.e(TAG, "The phone is trying to read from paired device without encryption. Android Bug? Have the dexcom forget whatever device it was previously paired to: ondescriptorwrite code: "+status+ "bond: "+gatt.getDevice().getBondState());
        }
    } else {
        Log.e(TAG, "Unknown error writing descriptor");
    }
}

Example 12

Source Project: xDrip-plus File: DexShareCollectionService.java License: GNU General Public License v3.0

5 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    if (status == BluetoothGatt.GATT_SUCCESS) {
        BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
        Log.d(TAG, "Characteristic onDescriptorWrite ch " + characteristic.getUuid());
        if(mHeartBeatCharacteristic.getUuid().equals(characteristic.getUuid())) {
            state_notifSetupSucess = true;
            setCharacteristicIndication(mReceiveDataCharacteristic);
        }
        if(mReceiveDataCharacteristic.getUuid().equals(characteristic.getUuid())) {
            setCharacteristicIndication(mResponseCharacteristic);
        }
        if(mResponseCharacteristic.getUuid().equals(characteristic.getUuid())) {
            attemptRead();
        }
    } else if ((status & BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) != 0 || (status & BluetoothGatt.GATT_INSUFFICIENT_ENCRYPTION) != 0) {
        if (gatt.getDevice().getBondState() == BluetoothDevice.BOND_NONE) {
            device = gatt.getDevice();
            state_authInProgress = true;
            bondDevice();
        } else {
            Log.e(TAG, "The phone is trying to read from paired device without encryption. Android Bug? Have the dexcom forget whatever device it was previously paired to: ondescriptorwrite code: "+status+ "bond: "+gatt.getDevice().getBondState());
        }
    } else {
        Log.e(TAG, "Unknown error writing descriptor");
    }
}

Example 13

Source Project: xDrip-Experimental File: DexShareCollectionService.java License: GNU General Public License v3.0

5 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    if (status == BluetoothGatt.GATT_SUCCESS) {
        BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
        Log.d(TAG, "Characteristic onDescriptorWrite ch " + characteristic.getUuid());
        if(mHeartBeatCharacteristic.getUuid().equals(characteristic.getUuid())) {
            state_notifSetupSucess = true;
            setCharacteristicIndication(mReceiveDataCharacteristic);
        }
        if(mReceiveDataCharacteristic.getUuid().equals(characteristic.getUuid())) {
            setCharacteristicIndication(mResponseCharacteristic);
        }
        if(mResponseCharacteristic.getUuid().equals(characteristic.getUuid())) {
            attemptRead();
        }
    } else if ((status & BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) != 0 || (status & BluetoothGatt.GATT_INSUFFICIENT_ENCRYPTION) != 0) {
        if (gatt.getDevice().getBondState() == BluetoothDevice.BOND_NONE) {
            device = gatt.getDevice();
            state_authInProgress = true;
            bondDevice();
        } else {
            Log.e(TAG, "The phone is trying to read from paired device without encryption. Android Bug? Have the dexcom forget whatever device it was previously paired to");
        }
    } else {
        Log.e(TAG, "Unknown error writing descriptor");
    }
}

Example 14

Source Project: Android-nRF-Toolbox File: BleManager.java License: BSD 3-Clause "New" or "Revised" License

5 votes

/**
 * There was a bug in Android up to 6.0 where the descriptor was written using parent
 * characteristic's write type, instead of always Write With Response, as the spec says.
 * <p>
 *     See: <a href="https://android.googlesource.com/platform/frameworks/base/+/942aebc95924ab1e7ea1e92aaf4e7fc45f695a6c%5E%21/#F0">
 *         https://android.googlesource.com/platform/frameworks/base/+/942aebc95924ab1e7ea1e92aaf4e7fc45f695a6c%5E%21/#F0</a>
 * </p>
 * @param descriptor the descriptor to be written
 * @return the result of {@link BluetoothGatt#writeDescriptor(BluetoothGattDescriptor)}
 */
private boolean internalWriteDescriptorWorkaround(final BluetoothGattDescriptor descriptor) {
	final BluetoothGatt gatt = bluetoothGatt;
	if (gatt == null || descriptor == null)
		return false;

	final BluetoothGattCharacteristic parentCharacteristic = descriptor.getCharacteristic();
	final int originalWriteType = parentCharacteristic.getWriteType();
	parentCharacteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT);
	final boolean result = gatt.writeDescriptor(descriptor);
	parentCharacteristic.setWriteType(originalWriteType);
	return result;
}

Example 15

Source Project: SweetBlue File: P_Task_ReadDescriptor.java License: GNU General Public License v3.0

5 votes

public P_Task_ReadDescriptor(BleDevice device, BluetoothGattDescriptor descriptor, Type type, boolean requiresBonding, ReadWriteListener readListener, BleTransaction txn, PE_TaskPriority priority)
{
	super(device, descriptor.getCharacteristic(), readListener, requiresBonding, txn, priority);
	
	m_type = type;
	m_descriptorUuid = descriptor.getUuid();
}

Example 16

Source Project: SweetBlue File: P_Task_WriteDescriptor.java License: GNU General Public License v3.0

5 votes

public P_Task_WriteDescriptor(BleDevice device, BluetoothGattDescriptor descriptor, FutureData futureData, boolean requiresBonding, ReadWriteListener readListener, BleTransaction txn, PE_TaskPriority priority)
{
	super(device, descriptor.getCharacteristic(), readListener, requiresBonding, txn, priority);

	m_descriptorUuid = descriptor.getUuid();
	m_futureData = futureData;
}

Example 17

Source Project: xDrip File: DexShareCollectionService.java License: GNU General Public License v3.0

5 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    if (status == BluetoothGatt.GATT_SUCCESS) {
        BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
        Log.d(TAG, "Characteristic onDescriptorWrite ch " + characteristic.getUuid());
        if(mHeartBeatCharacteristic.getUuid().equals(characteristic.getUuid())) {
            state_notifSetupSucess = true;
            setCharacteristicIndication(mReceiveDataCharacteristic);
        }
        if(mReceiveDataCharacteristic.getUuid().equals(characteristic.getUuid())) {
            setCharacteristicIndication(mResponseCharacteristic);
        }
        if(mResponseCharacteristic.getUuid().equals(characteristic.getUuid())) {
            attemptRead();
        }
    } else if ((status & BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) != 0 || (status & BluetoothGatt.GATT_INSUFFICIENT_ENCRYPTION) != 0) {
        if (gatt.getDevice().getBondState() == BluetoothDevice.BOND_NONE) {
            device = gatt.getDevice();
            state_authInProgress = true;
            bondDevice();
        } else {
            Log.e(TAG, "The phone is trying to read from paired device without encryption. Android Bug?");
        }
    } else {
        Log.e(TAG, "Unknown error writing descriptor");
    }
}

Example 18

Source Project: blessed-android File: BluetoothPeripheral.java License: MIT License

4 votes

@Override
public void onDescriptorWrite(BluetoothGatt gatt, final BluetoothGattDescriptor descriptor, final int status) {
    final BluetoothGattCharacteristic parentCharacteristic = descriptor.getCharacteristic();
    if (status != GATT_SUCCESS) {
        Timber.e("failed to write <%s> to descriptor of characteristic: <%s> for device: '%s', ", bytes2String(currentWriteBytes), parentCharacteristic.getUuid(), getAddress());
    }

    // Check if this was the Client Configuration Descriptor
    if (descriptor.getUuid().equals(UUID.fromString(CCC_DESCRIPTOR_UUID))) {
        if (status == GATT_SUCCESS) {
            byte[] value = descriptor.getValue();
            if (value != null) {
                if (Arrays.equals(value, BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE) ||
                    Arrays.equals(value, BluetoothGattDescriptor.ENABLE_INDICATION_VALUE)){
                    // Notify set to on, add it to the set of notifying characteristics
                    notifyingCharacteristics.add(parentCharacteristic.getUuid());
                    if (notifyingCharacteristics.size() > MAX_NOTIFYING_CHARACTERISTICS) {
                        Timber.e("too many (%d) notifying characteristics. The maximum Android can handle is %d", notifyingCharacteristics.size(), MAX_NOTIFYING_CHARACTERISTICS);
                    }
                } else if (Arrays.equals(value, BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE)){
                    // Notify was turned off, so remove it from the set of notifying characteristics
                    notifyingCharacteristics.remove(parentCharacteristic.getUuid());
                } else {
                    Timber.e("unexpected CCC descriptor value");
                }
            }
        }

        callbackHandler.post(new Runnable() {
            @Override
            public void run() {
                peripheralCallback.onNotificationStateUpdate(BluetoothPeripheral.this, parentCharacteristic, status);
            }
        });
    } else {
        callbackHandler.post(new Runnable() {
            @Override
            public void run() {
                peripheralCallback.onDescriptorWrite(BluetoothPeripheral.this, currentWriteBytes, descriptor, status);
            }
        });
    }
    completedCommand();
}

Example 19

Source Project: ble-test-peripheral-android File: Peripheral.java License: Apache License 2.0

4 votes

@Override
public void onDescriptorWriteRequest(BluetoothDevice device, int requestId,
    BluetoothGattDescriptor descriptor, boolean preparedWrite, boolean responseNeeded,
    int offset,
    byte[] value) {
  super.onDescriptorWriteRequest(device, requestId, descriptor, preparedWrite, responseNeeded,
      offset, value);
  Log.v(TAG, "Descriptor Write Request " + descriptor.getUuid() + " " + Arrays.toString(value));
  int status = BluetoothGatt.GATT_SUCCESS;
  if (descriptor.getUuid() == CLIENT_CHARACTERISTIC_CONFIGURATION_UUID) {
    BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
    boolean supportsNotifications = (characteristic.getProperties() &
        BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0;
    boolean supportsIndications = (characteristic.getProperties() &
        BluetoothGattCharacteristic.PROPERTY_INDICATE) != 0;

    if (!(supportsNotifications || supportsIndications)) {
      status = BluetoothGatt.GATT_REQUEST_NOT_SUPPORTED;
    } else if (value.length != 2) {
      status = BluetoothGatt.GATT_INVALID_ATTRIBUTE_LENGTH;
    } else if (Arrays.equals(value, BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE)) {
      status = BluetoothGatt.GATT_SUCCESS;
      mCurrentServiceFragment.notificationsDisabled(characteristic);
      descriptor.setValue(value);
    } else if (supportsNotifications &&
        Arrays.equals(value, BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE)) {
      status = BluetoothGatt.GATT_SUCCESS;
      mCurrentServiceFragment.notificationsEnabled(characteristic, false /* indicate */);
      descriptor.setValue(value);
    } else if (supportsIndications &&
        Arrays.equals(value, BluetoothGattDescriptor.ENABLE_INDICATION_VALUE)) {
      status = BluetoothGatt.GATT_SUCCESS;
      mCurrentServiceFragment.notificationsEnabled(characteristic, true /* indicate */);
      descriptor.setValue(value);
    } else {
      status = BluetoothGatt.GATT_REQUEST_NOT_SUPPORTED;
    }
  } else {
    status = BluetoothGatt.GATT_SUCCESS;
    descriptor.setValue(value);
  }
  if (responseNeeded) {
    mGattServer.sendResponse(device, requestId, status,
        /* No need to respond with offset */ 0,
        /* No need to respond with a value */ null);
  }
}

Example 20

Source Project: sony-smartband-open-api File: BtBand.java License: MIT License

4 votes

private DescriptorInfo getDescriptorInfo( BluetoothGattDescriptor descriptor ) {
    BluetoothGattCharacteristic characteristic = descriptor.getCharacteristic();
    return getDescriptorInfo( characteristic.getService().getUuid(), characteristic.getUuid(), descriptor.getUuid() );
}