Java Code Examples for android.bluetooth.BluetoothGattDescriptor#ENABLE_NOTIFICATION_VALUE
The following examples show how to use
android.bluetooth.BluetoothGattDescriptor#ENABLE_NOTIFICATION_VALUE .
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Example 1
| Source File: GattServerActivity.java From sample-bluetooth-le-gattserver with Apache License 2.0 | 6 votes |
|
@Override
public void onDescriptorReadRequest(BluetoothDevice device, int requestId, int offset,
BluetoothGattDescriptor descriptor) {
if (TimeProfile.CLIENT_CONFIG.equals(descriptor.getUuid())) {
Log.d(TAG, "Config descriptor read");
byte[] returnValue;
if (mRegisteredDevices.contains(device)) {
returnValue = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
} else {
returnValue = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
}
mBluetoothGattServer.sendResponse(device,
requestId,
BluetoothGatt.GATT_FAILURE,
0,
returnValue);
} else {
Log.w(TAG, "Unknown descriptor read request");
mBluetoothGattServer.sendResponse(device,
requestId,
BluetoothGatt.GATT_FAILURE,
0,
null);
}
}
Example 2
| Source File: P_Task_ToggleNotify.java From AsteroidOSSync with GNU General Public License v3.0 | 6 votes |
|
static byte[] getWriteValue(BluetoothGattCharacteristic char_native, boolean enable)
{
final int type;
if( (char_native.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0x0 )
{
type = Type_NOTIFY;
}
else if( (char_native.getProperties() & BluetoothGattCharacteristic.PROPERTY_INDICATE) != 0x0 )
{
type = Type_INDICATE;
}
else
{
type = Type_NOTIFY;
}
final byte[] enableValue = type == Type_NOTIFY ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
final byte[] disableValue = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
return enable ? enableValue : disableValue;
}
Example 3
| Source File: BLeSerialPortService.java From Android-BLE-Terminal with MIT License | 6 votes |
|
public boolean setCharacteristicNotification(BluetoothGattCharacteristic characteristic, boolean enabled) {
if (adapter != null || gatt != null) {
if (gatt.setCharacteristicNotification(characteristic, enabled)) {
BluetoothGattDescriptor descriptor = characteristic.getDescriptor(CLIENT_UUID);
if (descriptor != null) {
byte[] data = enabled ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
if (descriptor.setValue(data)) {
gatt.writeDescriptor(descriptor);
} else {
connectFailure();
}
} else {
connectFailure();
}
} else {
connectFailure();
}
}
return true;
}
Example 4
| Source File: P_Task_ToggleNotify.java From SweetBlue with GNU General Public License v3.0 | 6 votes |
|
static byte[] getWriteValue(BluetoothGattCharacteristic char_native, boolean enable)
{
final int type;
if( (char_native.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0x0 )
{
type = Type_NOTIFY;
}
else if( (char_native.getProperties() & BluetoothGattCharacteristic.PROPERTY_INDICATE) != 0x0 )
{
type = Type_INDICATE;
}
else
{
type = Type_NOTIFY;
}
final byte[] enableValue = type == Type_NOTIFY ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
final byte[] disableValue = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
return enable ? enableValue : disableValue;
}
Example 5
| Source File: BleWrapper.java From BLEService with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
public void setNotificationForCharacteristic(BluetoothGattCharacteristic ch, boolean enabled) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) return;
boolean success = mBluetoothGatt.setCharacteristicNotification(ch, enabled);
if(!success) {
Log.e("------", "Seting proper notification status for characteristic failed!");
}
// This is also sometimes required (e.g. for heart rate monitors) to enable notifications/indications
// see: https://developer.bluetooth.org/gatt/descriptors/Pages/DescriptorViewer.aspx?u=org.bluetooth.descriptor.gatt.client_characteristic_configuration.xml
BluetoothGattDescriptor descriptor = ch.getDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"));
if(descriptor != null) {
byte[] val = enabled ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
descriptor.setValue(val);
mBluetoothGatt.writeDescriptor(descriptor);
}
}
Example 6
| Source File: BLEUtils.java From EFRConnect-android with Apache License 2.0 | 5 votes |
|
Notifications(Types type, boolean enabled) {
this.enabled = enabled;
this.type = type;
this.btValue = this.enabled ?
this.type == Types.NOTIFICATIONS ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.ENABLE_INDICATION_VALUE :
BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
}
Example 7
| Source File: BluetoothLeService.java From SensorTag-CC2650 with Apache License 2.0 | 5 votes |
|
public boolean isNotificationEnabled(
BluetoothGattCharacteristic characteristic) {
if (characteristic == null) {
return false;
}
if (!checkGatt())
return false;
BluetoothGattDescriptor clientConfig = characteristic
.getDescriptor(GattInfo.CLIENT_CHARACTERISTIC_CONFIG);
if (clientConfig == null)
return false;
return clientConfig.getValue() == BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
}
Example 8
| Source File: Node.java From BlueSTSDK_Android with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
/**
* send a request for enable/disable the notification update on a specific characteristics
* @param characteristic characteristics to notify
* @param enable true if you want enable the notification, false if you want disable it
* @return true if the request is correctly send, false otherwise
*/
boolean changeNotificationStatus(BluetoothGattCharacteristic characteristic,
boolean enable){
if(charCanBeNotify(characteristic) && mConnection!=null && isConnected()){
BluetoothGattDescriptor descriptor = characteristic.getDescriptor(NOTIFY_CHAR_DESC_UUID);
if(descriptor==null)
return false;
WriteDescCommand command = null;
final int properties = characteristic.getProperties();
if((properties & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0) {
command = new WriteDescCommand(descriptor,
enable ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE :
BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
}else if((properties & BluetoothGattCharacteristic.PROPERTY_INDICATE) != 0) {
command = new WriteDescCommand(descriptor,
enable ? BluetoothGattDescriptor.ENABLE_INDICATION_VALUE :
BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
}
if(command==null)
return false;
enqueueWriteDesc(command);
return true;
}else
return false;
}
Example 9
| Source File: AndroidBle.java From GizwitsBLE with Apache License 2.0 | 5 votes |
|
@Override
public boolean characteristicNotification(String address,
BleGattCharacteristic characteristic) {
BleRequest request = mService.getCurrentRequest();
BluetoothGatt gatt = mBluetoothGatts.get(address);
if (gatt == null || characteristic == null) {
return false;
}
boolean enable = true;
if (request.type == RequestType.CHARACTERISTIC_STOP_NOTIFICATION) {
enable = false;
}
BluetoothGattCharacteristic c = characteristic.getGattCharacteristicA();
if (!gatt.setCharacteristicNotification(c, enable)) {
return false;
}
BluetoothGattDescriptor descriptor = c
.getDescriptor(BleService.DESC_CCC);
if (descriptor == null) {
return false;
}
byte[] val_set = null;
if (request.type == RequestType.CHARACTERISTIC_NOTIFICATION) {
val_set = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
} else if (request.type == RequestType.CHARACTERISTIC_INDICATION) {
val_set = BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
} else {
val_set = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
}
if (!descriptor.setValue(val_set)) {
return false;
}
return gatt.writeDescriptor(descriptor);
}
Example 10
| Source File: SetNotificationOperation.java From tap-android-sdk with Apache License 2.0 | 4 votes |
|
@Override
public void execute(@NonNull BluetoothGatt gatt) {
BluetoothGattCharacteristic c = extractCharacteristic(gatt);
if (c == null) {
postOnError(ErrorStrings.NO_CHARACTERISTIC + ": " + this.characteristic.toString());
return;
}
BluetoothGattDescriptor d = c.getDescriptor(descriptor);
if (d == null) {
postOnError(ErrorStrings.NO_DESCRIPTOR);
return;
}
int characteristicProperties = c.getProperties();
byte[] notificationValue = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
if ((characteristicProperties & 0x10) == 16) {
notificationValue = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
} else if ((characteristicProperties & 0x20) == 32) {
notificationValue = BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
}
if (notificationValue.length == 0) {
postOnError(ErrorStrings.NOTIFY_TYPE_FAIL);
return;
}
if (!d.setValue(notificationValue)) {
postOnError(ErrorStrings.VALUE_STORE_FAIL);
return;
}
if (!gatt.setCharacteristicNotification(c, true)) {
postOnError(ErrorStrings.NOTIFY_OP_INIT_FAIL);
return;
}
if (!gatt.writeDescriptor(d)) {
postOnError(ErrorStrings.WRITE_OP_INIT_FAIL);
}
}
Example 11
| Source File: CorePeripheral.java From RxCentralBle with Apache License 2.0 | 4 votes |
|
@Nullable
private PeripheralError setCharacteristicNotification(
BluetoothGatt bluetoothGatt, BluetoothGattCharacteristic characteristic, boolean enable) {
BluetoothGattDescriptor cccd = characteristic.getDescriptor(CCCD_UUID);
if (cccd == null) {
return new PeripheralError(PeripheralError.Code.SET_CHARACTERISTIC_NOTIFICATION_CCCD_MISSING);
}
if (!bluetoothGatt.setCharacteristicNotification(characteristic, enable)) {
return new PeripheralError(PeripheralError.Code.SET_CHARACTERISTIC_NOTIFICATION_FAILED);
}
int properties = characteristic.getProperties();
byte[] value;
if (enable) {
if ((properties & BluetoothGattCharacteristic.PROPERTY_NOTIFY)
== BluetoothGattCharacteristic.PROPERTY_NOTIFY) {
value = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
} else if ((properties & BluetoothGattCharacteristic.PROPERTY_INDICATE)
== BluetoothGattCharacteristic.PROPERTY_INDICATE) {
value = BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
} else {
return new PeripheralError(PeripheralError.Code.SET_CHARACTERISTIC_NOTIFICATION_MISSING_PROPERTY);
}
} else {
value = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
}
characteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT);
if (!cccd.setValue(value)) {
return new PeripheralError(CHARACTERISTIC_SET_VALUE_FAILED);
}
if (!bluetoothGatt.writeDescriptor(cccd)) {
return new PeripheralError(PeripheralError.Code.WRITE_DESCRIPTOR_FAILED, ERROR_STATUS_CALL_FAILED);
}
return null;
}
Example 12
| Source File: SubscribeCommand.java From neatle with MIT License | 4 votes |
|
@Override
protected void start(Connection connection, BluetoothGatt gatt) {
if (type == Type.UNSUBSCRIBE && connection.getCharacteristicsChangedListenerCount(characteristicUUID) > 0) {
NeatleLogger.d("Won't unsubscribe on " + characteristicUUID + " since it has registered listeners");
finish(CommandResult.createEmptySuccess(characteristicUUID));
return;
}
BluetoothGattService service = gatt.getService(serviceUUID);
if (service == null) {
finish(CommandResult.createErrorResult(characteristicUUID, SERVICE_NOT_FOUND));
return;
}
BluetoothGattCharacteristic characteristic = service.getCharacteristic(characteristicUUID);
if (characteristic == null) {
finish(CommandResult.createErrorResult(characteristicUUID, CHARACTERISTIC_NOT_FOUND));
return;
}
BluetoothGattDescriptor descriptor = characteristic.getDescriptor(CLIENT_CHARACTERISTIC_CONFIG);
if (descriptor == null) {
finish(CommandResult.createErrorResult(characteristicUUID, DESCRIPTOR_NOT_FOUND));
return;
}
boolean turnOn;
byte[] valueToWrite;
switch (type) {
case Type.SUBSCRIBE_INDICATION:
NeatleLogger.d("Subscribing to indications on " + characteristicUUID);
valueToWrite = BluetoothGattDescriptor.ENABLE_INDICATION_VALUE;
turnOn = true;
break;
case Type.SUBSCRIBE_NOTIFICATION:
NeatleLogger.d("Subscribing to notifications on " + characteristicUUID);
valueToWrite = BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
turnOn = true;
break;
case Type.UNSUBSCRIBE:
NeatleLogger.d("Unsubscribing from notifications/indications on " + characteristicUUID);
valueToWrite = BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE;
turnOn = false;
break;
default:
throw new IllegalStateException();
}
byte[] descriptorValue = descriptor.getValue();
if (Arrays.equals(descriptorValue, valueToWrite)) {
NeatleLogger.d("No subscription changes needed - is at " + valueToWrite[0] + " on " + characteristicUUID);
finish(CommandResult.createEmptySuccess(characteristicUUID));
return;
}
if (!gatt.setCharacteristicNotification(characteristic, turnOn)) {
NeatleLogger.e("Failed to change characteristics notification flag on " + characteristicUUID);
finish(CommandResult.createErrorResult(characteristicUUID, BluetoothGatt.GATT_FAILURE));
return;
}
descriptor.setValue(valueToWrite);
NeatleLogger.d("Writing descriptor on " + characteristicUUID);
if (!gatt.writeDescriptor(descriptor)) {
NeatleLogger.e("Failed to write descriptor on " + characteristicUUID);
finish(CommandResult.createErrorResult(characteristicUUID, BluetoothGatt.GATT_FAILURE));
}
}
Example 13
| Source File: ClientComponent.java From RxAndroidBle with Apache License 2.0 | 4 votes |
|
@Provides
@Named(BluetoothConstants.ENABLE_NOTIFICATION_VALUE)
static byte[] provideEnableNotificationValue() {
return BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE;
}
Example 14
| Source File: RileyLinkBLE.java From AndroidAPS with GNU Affero General Public License v3.0 | 4 votes |
|
public BLECommOperationResult setNotification_blocking(UUID serviceUUID, UUID charaUUID) {
BLECommOperationResult rval = new BLECommOperationResult();
if (bluetoothConnectionGatt != null) {
try {
gattOperationSema.acquire();
SystemClock.sleep(1); // attempting to yield thread, to make sequence of events easier to follow
} catch (InterruptedException e) {
LOG.error("setNotification_blocking: interrupted waiting for gattOperationSema");
return rval;
}
if (mCurrentOperation != null) {
rval.resultCode = BLECommOperationResult.RESULT_BUSY;
} else {
if (bluetoothConnectionGatt.getService(serviceUUID) == null) {
// Catch if the service is not supported by the BLE device
rval.resultCode = BLECommOperationResult.RESULT_NONE;
LOG.error("BT Device not supported");
// TODO: 11/07/2016 UI update for user
} else {
BluetoothGattCharacteristic chara = bluetoothConnectionGatt.getService(serviceUUID)
.getCharacteristic(charaUUID);
// Tell Android that we want the notifications
bluetoothConnectionGatt.setCharacteristicNotification(chara, true);
List<BluetoothGattDescriptor> list = chara.getDescriptors();
if (gattDebugEnabled) {
for (int i = 0; i < list.size(); i++) {
if (isLogEnabled())
LOG.debug("Found descriptor: " + list.get(i).toString());
}
}
BluetoothGattDescriptor descr = list.get(0);
// Tell the remote device to send the notifications
mCurrentOperation = new DescriptorWriteOperation(bluetoothConnectionGatt, descr,
BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mCurrentOperation.execute(this);
if (mCurrentOperation.timedOut) {
rval.resultCode = BLECommOperationResult.RESULT_TIMEOUT;
} else if (mCurrentOperation.interrupted) {
rval.resultCode = BLECommOperationResult.RESULT_INTERRUPTED;
} else {
rval.resultCode = BLECommOperationResult.RESULT_SUCCESS;
}
}
mCurrentOperation = null;
gattOperationSema.release();
}
} else {
LOG.error("setNotification_blocking: not configured!");
rval.resultCode = BLECommOperationResult.RESULT_NOT_CONFIGURED;
}
return rval;
}
Example 15
| Source File: BleConnectWorker.java From Android-BluetoothKit with Apache License 2.0 | 4 votes |
|
@Override
public boolean setCharacteristicNotification(UUID service, UUID character, boolean enable) {
checkRuntime();
BluetoothLog.v(String.format("setCharacteristicNotification for %s, service = %s, character = %s, enable = %b",
getAddress(), service, character, enable));
BluetoothGattCharacteristic characteristic = getCharacter(service, character);
if (characteristic == null) {
BluetoothLog.e(String.format("characteristic not exist!"));
return false;
}
// if (!isCharacteristicNotifyable(characteristic)) {
// BluetoothLog.e(String.format("characteristic not notifyable!"));
// return false;
// }
if (mBluetoothGatt == null) {
BluetoothLog.e(String.format("ble gatt null"));
return false;
}
if (!mBluetoothGatt.setCharacteristicNotification(characteristic, enable)) {
BluetoothLog.e(String.format("setCharacteristicNotification failed"));
return false;
}
BluetoothGattDescriptor descriptor = characteristic.getDescriptor(Constants.CLIENT_CHARACTERISTIC_CONFIG);
if (descriptor == null) {
BluetoothLog.e(String.format("getDescriptor for notify null!"));
return false;
}
byte[] value = (enable ? BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE : BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
if (!descriptor.setValue(value)) {
BluetoothLog.e(String.format("setValue for notify descriptor failed!"));
return false;
}
if (!mBluetoothGatt.writeDescriptor(descriptor)) {
BluetoothLog.e(String.format("writeDescriptor for notify failed"));
return false;
}
return true;
}
