Java Code Examples for android.bluetooth.BluetoothGattCharacteristic#PROPERTY_NOTIFY

The following examples show how to use android.bluetooth.BluetoothGattCharacteristic#PROPERTY_NOTIFY . 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 File: DeviceControlActivity.java    From connectivity-samples with Apache License 2.0 6 votes vote down vote up 
@Override
public boolean onChildClick(ExpandableListView parent, View v, int groupPosition,
                            int childPosition, long id) {
    if (mGattCharacteristics != null) {
        final BluetoothGattCharacteristic characteristic =
                mGattCharacteristics.get(groupPosition).get(childPosition);
        final int charaProp = characteristic.getProperties();
        if ((charaProp | BluetoothGattCharacteristic.PROPERTY_READ) > 0) {
            // If there is an active notification on a characteristic, clear
            // it first so it doesn't update the data field on the user interface.
            if (mNotifyCharacteristic != null) {
                mBluetoothLeService.setCharacteristicNotification(
                        mNotifyCharacteristic, false);
                mNotifyCharacteristic = null;
            }
            mBluetoothLeService.readCharacteristic(characteristic);
        }
        if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
            mNotifyCharacteristic = characteristic;
            mBluetoothLeService.setCharacteristicNotification(
                    characteristic, true);
        }
        return true;
    }
    return false;
}
Example 2
Source File: GattServer.java    From blefun-androidthings with Apache License 2.0 6 votes vote down vote up 
private BluetoothGattService createAwesomenessService() {
    BluetoothGattService service = new BluetoothGattService(SERVICE_UUID, BluetoothGattService.SERVICE_TYPE_PRIMARY);

    // Counter characteristic (read-only, supports notifications)
    BluetoothGattCharacteristic counter = new BluetoothGattCharacteristic(CHARACTERISTIC_COUNTER_UUID,
            BluetoothGattCharacteristic.PROPERTY_READ | BluetoothGattCharacteristic.PROPERTY_NOTIFY,
            BluetoothGattCharacteristic.PERMISSION_READ);
    BluetoothGattDescriptor counterConfig = new BluetoothGattDescriptor(DESCRIPTOR_CONFIG, BluetoothGattDescriptor.PERMISSION_READ | BluetoothGattDescriptor.PERMISSION_WRITE);
    counter.addDescriptor(counterConfig);
    BluetoothGattDescriptor counterDescription = new BluetoothGattDescriptor(DESCRIPTOR_USER_DESC, BluetoothGattDescriptor.PERMISSION_READ);
    counter.addDescriptor(counterDescription);

    // Interactor characteristic
    BluetoothGattCharacteristic interactor = new BluetoothGattCharacteristic(CHARACTERISTIC_INTERACTOR_UUID,
            BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE, BluetoothGattCharacteristic.PERMISSION_WRITE);
    BluetoothGattDescriptor interactorDescription = new BluetoothGattDescriptor(DESCRIPTOR_USER_DESC, BluetoothGattDescriptor.PERMISSION_READ);
    interactor.addDescriptor(interactorDescription);

    service.addCharacteristic(counter);
    service.addCharacteristic(interactor);

    return service;
}
Example 3
Source File: CharacteristicDetailActivity.java    From AndroidBleManager with Apache License 2.0 6 votes vote down vote up 
private String getPropertyString(int property){
    StringBuilder sb = new StringBuilder();
    // 可读
    if ((property & BluetoothGattCharacteristic.PROPERTY_READ) > 0) {
        sb.append("Read ");
    }
    // 可写，注：要 & 其可写的两个属性
    if ((property & BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) > 0
            || (property & BluetoothGattCharacteristic.PROPERTY_WRITE) > 0) {
        sb.append("Write ");
    }
    // 可通知，可指示
    if ((property & BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0
            || (property & BluetoothGattCharacteristic.PROPERTY_INDICATE) > 0) {
        sb.append("Notity Indicate ");
    }
    // 广播
    if ((property & BluetoothGattCharacteristic.PROPERTY_BROADCAST) > 0){
        sb.append("Broadcast ");
    }
    sb.deleteCharAt(sb.length() - 1);
    return sb.toString();
}
Example 4
Source File: P_Task_ToggleNotify.java    From AsteroidOSSync with GNU General Public License v3.0 6 votes vote down vote up 
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: BlePeripheral.java    From Bluefruit_LE_Connect_Android_V2 with MIT License 6 votes vote down vote up 
public void characteristicEnableNotify(@NonNull final BluetoothGattCharacteristic characteristic, NotifyHandler notifyHandler, CompletionHandler completionHandler) {
    final String identifier = getCharacteristicIdentifier(characteristic);
    BleCommand command = new BleCommand(BleCommand.BLECOMMANDTYPE_SETNOTIFY, kDebugCommands ? identifier : null, completionHandler) {

        @Override
        public void execute() {
            BluetoothGattDescriptor descriptor = characteristic.getDescriptor(kClientCharacteristicConfigUUID);
            if (mBluetoothGatt != null && descriptor != null && (characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0) {
                mNotifyHandlers.put(identifier, notifyHandler);
                mBluetoothGatt.setCharacteristicNotification(characteristic, true);
                descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
                mBluetoothGatt.writeDescriptor(descriptor);
                //characteristic.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT);
            } else {
                Log.w(TAG, "enable notify: client config descriptor not found for characteristic: " + characteristic.getUuid().toString());
                finishExecutingCommand(BluetoothGatt.GATT_FAILURE);
            }
        }
    };
    mCommmandQueue.add(command);
}
Example 6
Source File: BleManager.java    From Android-nRF-Toolbox with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
private boolean internalSetBatteryNotifications(final boolean enable) {
	final BluetoothGatt gatt = bluetoothGatt;
	if (gatt == null) {
		return false;
	}

	final BluetoothGattService batteryService = gatt.getService(BATTERY_SERVICE);
	if (batteryService == null)
		return false;

	final BluetoothGattCharacteristic batteryLevelCharacteristic = batteryService.getCharacteristic(BATTERY_LEVEL_CHARACTERISTIC);
	if (batteryLevelCharacteristic == null)
		return false;

	// Check characteristic property
	final int properties = batteryLevelCharacteristic.getProperties();
	if ((properties & BluetoothGattCharacteristic.PROPERTY_NOTIFY) == 0)
		return false;

	gatt.setCharacteristicNotification(batteryLevelCharacteristic, enable);
	final BluetoothGattDescriptor descriptor = batteryLevelCharacteristic.getDescriptor(CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
	if (descriptor != null) {
		if (enable) {
			descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
		} else {
			descriptor.setValue(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
		}
		return internalWriteDescriptorWorkaround(descriptor);
	}
	return false;
}
Example 7
Source File: ChangeCharActivity.java    From bleTester with Apache License 2.0 5 votes vote down vote up 
@SuppressLint("NewApi")
@Override
public void onServiceConnected(ComponentName arg0, IBinder service) {
	// TODO Auto-generated method stub
	bleService = ((BleService.LocalBinder) service).getService();
	gattChar = bleService.mBluetoothGatt.getService(serUuid)
			.getCharacteristic(charUuid);
	bleService.mBluetoothGatt.readCharacteristic(gattChar);
	if (gattChar.getDescriptors().size() != 0) {
		BluetoothGattDescriptor des = gattChar.getDescriptors().get(0);
		des.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
		bleService.mBluetoothGatt.writeDescriptor(des);
	}
	int prop = gattChar.getProperties();
	if ((prop & BluetoothGattCharacteristic.PROPERTY_WRITE) > 0) {
		bleService.mBluetoothGatt.setCharacteristicNotification(
				gattChar, false);
	}
	if ((prop & BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) > 0) {
		bleService.mBluetoothGatt.setCharacteristicNotification(
				gattChar, false);
	}
	if ((prop & BluetoothGattCharacteristic.PROPERTY_READ) > 0) {
		bleService.mBluetoothGatt.setCharacteristicNotification(
				gattChar, false);
	}
	if ((prop & BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
		bleService.mBluetoothGatt.setCharacteristicNotification(
				gattChar, true);
	}
}
Example 8
Source File: DeviceControlActivity.java    From IoT-Firstep with GNU General Public License v3.0 5 votes vote down vote up 
/**
   * 获取BLE的特征值
   * @param gattServices
   */
  private void getCharacteristic(List<BluetoothGattService> gattServices) {
      if (gattServices == null) return;
      String uuid = null;

      // Loops through available GATT Services.
      for (BluetoothGattService gattService : gattServices) {
          uuid = gattService.getUuid().toString();
          
          //找uuid为0xffe0的服务
          if (uuid.equals(C.SERVICE_UUID)) {
          	List<BluetoothGattCharacteristic> gattCharacteristics =
                      gattService.getCharacteristics();
              //找uuid为0xffe1的特征值
              for (BluetoothGattCharacteristic gattCharacteristic : gattCharacteristics) {
                  uuid = gattCharacteristic.getUuid().toString();
                  if(uuid.equals(C.CHAR_UUID)){
                  	mCharacteristic = gattCharacteristic;
                  	final int charaProp = gattCharacteristic.getProperties();
              		//开启该特征值的数据的监听
              		if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
                          mBluetoothLeService.setCharacteristicNotification(
                                  mCharacteristic, true);
                      }
                  	System.out.println("uuid----->" + uuid);
                  }
              }
	}
      }
      
      //如果没找到指定的特征值,直接返回
      if (mCharacteristic == null) {
      	Toast.makeText(DeviceControlActivity.this, "未找到指定特征值", 
      			Toast.LENGTH_LONG).show();
	finish();
}

  }
Example 9
Source File: BleConnector.java    From FastBle with Apache License 2.0 5 votes vote down vote up 
/**
 * indicate
 */
public void enableCharacteristicIndicate(BleIndicateCallback bleIndicateCallback, String uuid_indicate,
                                         boolean useCharacteristicDescriptor) {
    if (mCharacteristic != null
            && (mCharacteristic.getProperties() | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
        handleCharacteristicIndicateCallback(bleIndicateCallback, uuid_indicate);
        setCharacteristicIndication(mBluetoothGatt, mCharacteristic,
                useCharacteristicDescriptor, true, bleIndicateCallback);
    } else {
        if (bleIndicateCallback != null)
            bleIndicateCallback.onIndicateFailure(new OtherException("this characteristic not support indicate!"));
    }
}
Example 10
Source File: DeviceControlActivity.java    From IoT-Firstep with GNU General Public License v3.0 5 votes vote down vote up 
/**
   * 获取BLE的特征值
   * @param gattServices
   */
  private void getCharacteristic(List<BluetoothGattService> gattServices) {
      if (gattServices == null) return;
      String uuid = null;

      // Loops through available GATT Services.
      for (BluetoothGattService gattService : gattServices) {
          uuid = gattService.getUuid().toString();
          
          //找uuid为0xffe0的服务
          if (uuid.equals(C.SERVICE_UUID)) {
          	List<BluetoothGattCharacteristic> gattCharacteristics =
                      gattService.getCharacteristics();
              //找uuid为0xffe1的特征值
              for (BluetoothGattCharacteristic gattCharacteristic : gattCharacteristics) {
                  uuid = gattCharacteristic.getUuid().toString();
                  if(uuid.equals(C.CHAR_UUID)){
                  	mCharacteristic = gattCharacteristic;
                  	final int charaProp = gattCharacteristic.getProperties();
              		//开启该特征值的数据的监听
              		if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
                          mBluetoothLeService.setCharacteristicNotification(
                                  mCharacteristic, true);
                      }
                  	System.out.println("uuid----->" + uuid);
                  }
              }
	}
      }
      
      //如果没找到指定的特征值,直接返回
      if (mCharacteristic == null) {
      	Toast.makeText(DeviceControlActivity.this, "未找到指定特征值", 
      			Toast.LENGTH_LONG).show();
	finish();
}

  }
Example 11
Source File: TourTheStairs.java    From jessica with MIT License 5 votes vote down vote up 
public void setAllNotification( Boolean enable ) {
    for( ArrayList<BluetoothGattCharacteristic> myList : mGattCharacteristics )
        for( BluetoothGattCharacteristic characteristic : myList) {
            int charaProp = characteristic.getProperties();
            if ((charaProp & BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
                mBluetoothLeService.setCharacteristicNotification(characteristic, enable);
                sleep(50);
            }
        }
}
Example 12
Source File: CharacteristicDetailsActivity.java    From BLEService with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
public static String getCharacteristicPropertiesString(int props) {
 String propertiesString = String.format("0x%04X [", props);
 if((props & BluetoothGattCharacteristic.PROPERTY_READ) != 0) propertiesString += "read ";
 if((props & BluetoothGattCharacteristic.PROPERTY_WRITE) != 0) propertiesString += "write ";
 if((props & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0) propertiesString += "notify ";
 if((props & BluetoothGattCharacteristic.PROPERTY_INDICATE) != 0) propertiesString += "indicate ";
 if((props & BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) != 0) propertiesString += "write_no_response ";
 propertiesString += "]";
 return propertiesString;

}
Example 13
Source File: GattServerTests.java    From bitgatt with Mozilla Public License 2.0 5 votes vote down vote up 
@BeforeClass
public static void before() {
    Timber.plant(new Timber.DebugTree());
    mockContext = InstrumentationRegistry.getInstrumentation().getContext();
    main = new BluetoothGattService(UUID.fromString("adabfb00-6e7d-4601-bda2-bffaa68956ba"), BluetoothGattService.SERVICE_TYPE_PRIMARY);
    BluetoothGattCharacteristic txChar = new BluetoothGattCharacteristic(UUID.fromString("ADABFB01-6E7D-4601-BDA2-BFFAA68956BA"),
        BluetoothGattCharacteristic.PROPERTY_WRITE | BluetoothGattCharacteristic.PROPERTY_NOTIFY,
        BluetoothGattCharacteristic.PERMISSION_WRITE | BluetoothGattCharacteristic.PERMISSION_WRITE_ENCRYPTED);
    main.addCharacteristic(txChar);
    BluetoothGattCharacteristic rxChar = new BluetoothGattCharacteristic(UUID.fromString("ADABFB02-6E7D-4601-BDA2-BFFAA68956BA"),
        BluetoothGattCharacteristic.PROPERTY_INDICATE | BluetoothGattCharacteristic.PROPERTY_NOTIFY | BluetoothGattCharacteristic.PROPERTY_READ,
        BluetoothGattCharacteristic.PERMISSION_READ | BluetoothGattCharacteristic.PERMISSION_READ_ENCRYPTED);
    main.addCharacteristic(rxChar);
    liveData = new BluetoothGattService(UUID.fromString("558dfa00-4fa8-4105-9f02-4eaa93e62980"), BluetoothGattService.SERVICE_TYPE_PRIMARY);
    BluetoothGattCharacteristic ldChar = new BluetoothGattCharacteristic(UUID.fromString("558DFA01-4FA8-4105-9F02-4EAA93E62980"),
        BluetoothGattCharacteristic.PROPERTY_INDICATE | BluetoothGattCharacteristic.PROPERTY_READ,
        BluetoothGattCharacteristic.PERMISSION_READ | BluetoothGattCharacteristic.PERMISSION_READ_ENCRYPTED);
    liveData.addCharacteristic(ldChar);
    dncs = new BluetoothGattService(UUID.fromString("16bcfd00-253f-c348-e831-0db3e334d580"), BluetoothGattService.SERVICE_TYPE_PRIMARY);
    BluetoothGattCharacteristic notifChar = new BluetoothGattCharacteristic(UUID.fromString("16BCFD02-253F-C348-E831-0DB3E334D580"),
        BluetoothGattCharacteristic.PROPERTY_NOTIFY | BluetoothGattCharacteristic.PROPERTY_READ,
        BluetoothGattCharacteristic.PERMISSION_READ_ENCRYPTED | BluetoothGattCharacteristic.PERMISSION_WRITE);
    dncs.addCharacteristic(notifChar);
    cpChar = new BluetoothGattCharacteristic(UUID.fromString("16BCFD01-253F-C348-E831-0DB3E334D580"),
        BluetoothGattCharacteristic.PROPERTY_WRITE | BluetoothGattCharacteristic.PROPERTY_READ,
        BluetoothGattCharacteristic.PERMISSION_READ | BluetoothGattCharacteristic.PERMISSION_WRITE);
    dncs.addCharacteristic(cpChar);
    BluetoothGattCharacteristic flsChar = new BluetoothGattCharacteristic(UUID.fromString("16BCFD04-253F-C348-E831-0DB3E334D580"),
        BluetoothGattCharacteristic.PROPERTY_WRITE | BluetoothGattCharacteristic.PROPERTY_READ,
        BluetoothGattCharacteristic.PERMISSION_READ | BluetoothGattCharacteristic.PERMISSION_WRITE);
    dncs.addCharacteristic(flsChar);
}
Example 14
Source File: DeviceControlActivity.java    From IoT-Firstep with GNU General Public License v3.0 5 votes vote down vote up 
/**
   * 获取BLE的特征值
   * @param gattServices
   */
  private void getCharacteristic(List<BluetoothGattService> gattServices) {
      if (gattServices == null) return;
      String uuid = null;

      // Loops through available GATT Services.
      for (BluetoothGattService gattService : gattServices) {
          uuid = gattService.getUuid().toString();
          
          //找uuid为0000ffe0-0000-1000-8000-00805f9b34fb的服务
          if (uuid.equals(C.SERVICE_UUID)) {
          	List<BluetoothGattCharacteristic> gattCharacteristics =
                      gattService.getCharacteristics();
              //找uuid为0000ffe1-0000-1000-8000-00805f9b34fb的特征值
              for (BluetoothGattCharacteristic gattCharacteristic : gattCharacteristics) {
                  uuid = gattCharacteristic.getUuid().toString();
                  if(uuid.equals(C.CHAR_UUID)){
                  	mCharacteristic = gattCharacteristic;
                  	final int charaProp = gattCharacteristic.getProperties();
              		//开启该特征值的数据的监听
              		if ((charaProp | BluetoothGattCharacteristic.PROPERTY_NOTIFY) > 0) {
                          mBluetoothLeService.setCharacteristicNotification(
                                  mCharacteristic, true);
                      }
                  	System.out.println("uuid----->" + uuid);
                  }
              }
	}
      }
      
      //如果没找到指定的特征值,直接返回
      if (mCharacteristic == null) {
      	Toast.makeText(DeviceControlActivity.this, "未找到指定特征值", 
      			Toast.LENGTH_LONG).show();
	finish();
}

  }
Example 15
Source File: Node.java    From BlueSTSDK_Android with BSD 3-Clause "New" or "Revised" License 5 votes vote down vote up 
/**
 * 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 16
Source File: GattDatabase.java    From SweetBlue with GNU General Public License v3.0 4 votes vote down vote up 
public final Properties notify_prop()
{
    m_properties |= BluetoothGattCharacteristic.PROPERTY_NOTIFY;
    return this;
}
Example 17
Source File: BleConnectWorker.java    From Android-BluetoothKit with Apache License 2.0 4 votes vote down vote up 
private boolean isCharacteristicNotifyable(BluetoothGattCharacteristic characteristic) {
    return characteristic != null && (characteristic.getProperties()
            & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0;
}
Example 18
Source File: BLEUtils.java    From android with MIT License 4 votes vote down vote up 
/**
 * @return Returns <b>true</b> if property is supports notification
 */
public static boolean isCharacteristicNotifiable(BluetoothGattCharacteristic pChar) {
    return (pChar.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0;
}
Example 19
Source File: P_DeviceServiceManager.java    From SweetBlue with GNU General Public License v3.0 4 votes vote down vote up 
static BleDevice.ReadWriteListener.Type modifyResultType(BleCharacteristicWrapper char_native, BleDevice.ReadWriteListener.Type type)
{
	if( !char_native.isNull())
	{
		if( type == Type.NOTIFICATION )
		{
			if( (char_native.getCharacteristic().getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) == 0x0 )
			{
				if( (char_native.getCharacteristic().getProperties() & BluetoothGattCharacteristic.PROPERTY_INDICATE) != 0x0 )
				{
					type = Type.INDICATION;
				}
			}
		}
		else if( type == Type.WRITE )
		{
			if( (char_native.getCharacteristic().getProperties() & BluetoothGattCharacteristic.PROPERTY_WRITE) == 0x0 )
			{
				if( (char_native.getCharacteristic().getProperties() & BluetoothGattCharacteristic.PROPERTY_WRITE_NO_RESPONSE) != 0x0 )
				{
					type = Type.WRITE_NO_RESPONSE;
				}
				else if( (char_native.getCharacteristic().getProperties() & BluetoothGattCharacteristic.PROPERTY_SIGNED_WRITE) != 0x0 )
				{
					type = Type.WRITE_SIGNED;
				}
			}
			//--- RB > Check the write type on the characteristic, in case this char has multiple write types
			int writeType = char_native.getCharacteristic().getWriteType();
			if (writeType == BluetoothGattCharacteristic.WRITE_TYPE_NO_RESPONSE)
			{
				type = Type.WRITE_NO_RESPONSE;
			}
			else if (writeType == BluetoothGattCharacteristic.WRITE_TYPE_SIGNED)
			{
				type = Type.WRITE_SIGNED;
			}
		}
	}
	
	return type;
}
Example 20
Source File: CorePeripheral.java    From RxCentralBle with Apache License 2.0 4 votes vote down vote up 
@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;
}