/*
* Send an enable command to each sensor by writing a configuration
* characteristic. This is specific to the SensorTag to keep power
* low by disabling sensors you aren't using.
*/
private void enableNextSensor(BluetoothGatt gatt) {
BluetoothGattCharacteristic characteristic;
gatt2 = gatt;
Log.wtf("mState is", mState + "");
switch (mState) {
case 0:
Log.wtf(TAG, "Renaming");
characteristic = gatt.getService(MAIN_SERVICE).getCharacteristic(ERROR_CHAR);
gatt.readCharacteristic(characteristic);
break;
case 1:
Log.d(TAG, "Enabling pressure cal");
characteristic = gatt.getService(MAIN_SERVICE).getCharacteristic(CONFIG_CHAR);
characteristic.setValue(new byte[] {0x01});
gatt.writeCharacteristic(characteristic);
break;
default:
mHandler.sendEmptyMessage(MSG_DISMISS);
Log.i(TAG, "All Sensors Enabled");
return;
}
}
public void writeCharacter(String address) {
BluetoothGattService alarmService = null;
BluetoothGattCharacteristic alarmCharacter = null;
if (mBluetoothGatt != null) {
alarmService = mBluetoothGatt.getService(SERVIE_UUID);
}
if (alarmService == null) {
showMessage("link loss Alert service not found!");
return;
}
alarmCharacter =
alarmService.getCharacteristic(UUID.fromString("00002a06-0000-1000-8000-00805f9b34fb"));
if (alarmCharacter == null) {
connect(address);
showMessage("link loss Alert Level charateristic not found!");
return;
}
alarmCharacter.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_NO_RESPONSE);
byte[] value = {0x01};
alarmCharacter.setValue(value);
mBluetoothGatt.writeCharacteristic(alarmCharacter);
}
// Called when services have been discovered on the remote device.
// It seems to be necessary to wait for this discovery to occur before
// manipulating any services or characteristics.
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
super.onServicesDiscovered(gatt, status);
if (status == BluetoothGatt.GATT_SUCCESS) {
// writeLine("Service discovery completed!");
} else {
// writeLine("Service discovery failed with status: " + status);
}
// Save reference to each characteristic.
tx = gatt.getService(UART_UUID).getCharacteristic(TX_UUID);
rx = gatt.getService(UART_UUID).getCharacteristic(RX_UUID);
// Setup notifications on RX characteristic changes (i.e. data received).
// First call setCharacteristicNotification to enable notification.
if (!gatt.setCharacteristicNotification(rx, true)) {
// writeLine("Couldn't set notifications for RX characteristic!");
}
// Next update the RX characteristic's client descriptor to enable notifications.
if (rx.getDescriptor(CLIENT_UUID) != null) {
BluetoothGattDescriptor desc = rx.getDescriptor(CLIENT_UUID);
desc.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
if (!gatt.writeDescriptor(desc)) {
// writeLine("Couldn't write RX client descriptor value!");
}
} else {
// writeLine("Couldn't get RX client descriptor!");
}
}
public BluetoothGattService getSupportedGattService() {
if (mBluetoothGatt == null) {
LogUtil.info(TAG, "mBluetoothGatt is null ,try reconnect!");
boolean isconnectok = connect();
if (!isconnectok) {
connect();
}
return null;
}
String UUID_SERVICE;
switch (DEVICE_TYPE) {
case 1: // 脂肪秤
UUID_SERVICE = BLEConstants.UUID_FATSCALE_SERVICE;
break;
case 2: // 血压计
UUID_SERVICE = BLEConstants.UUID_BLOOD_PRESSURE_SERVICE;
break;
case 3: // 血糖仪
UUID_SERVICE = BLEConstants.UUID_BLOODSUGAR_SERVICE;
break;
default:
UUID_SERVICE = BLEConstants.UUID_FATSCALE_SERVICE;
break;
}
LogUtil.info(TAG, "device type=" + DEVICE_TYPE);
BluetoothGattService service = mBluetoothGatt.getService(UUID.fromString(UUID_SERVICE));
return service;
}
/*
* Enable notification of changes on the data characteristic for each sensor
* by writing the ENABLE_NOTIFICATION_VALUE flag to that characteristic's
* configuration descriptor.
*/
private void setNotifyNextSensor(BluetoothGatt gatt) {
BluetoothGattCharacteristic characteristic;
switch (mState) {
case 0:
Log.d(TAG, "Set notify on Data characteristic");
characteristic = gatt.getService(MAIN_SERVICE).getCharacteristic(DATA_CHAR);
break;
default:
// mHandler.sendEmptyMessage(MSG_DISMISS);
Log.i(TAG, "All Sensors Enabled");
reset();
return;
}
bytesp1 = new ArrayList<>();
bytesp2 = new ArrayList<>();
bytesv = new ArrayList<>();
// Enable local notifications
gatt.setCharacteristicNotification(characteristic, true);
// Enabled remote notifications
BluetoothGattDescriptor desc = characteristic.getDescriptor(CONFIG_DESCRIPTOR);
desc.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
gatt.writeDescriptor(desc);
}
public void removeNotify(
UUID serviceUUID, UUID characteristicUUID, Callback success, Callback fail) {
Log.d(LOG_TAG, "removeNotify");
if (gatt == null) {
fail.invoke("BluetoothGatt is null");
return;
}
BluetoothGattService service = gatt.getService(serviceUUID);
BluetoothGattCharacteristic characteristic =
findNotifyCharacteristic(service, characteristicUUID);
// String key = generateHashKey(serviceUUID, characteristic);
if (characteristic != null) {
if (gatt.setCharacteristicNotification(characteristic, false)) {
success.invoke();
} else {
// TODO we can probably ignore and return success anyway since we removed the notification
// callback
fail.invoke("Failed to stop notification for " + characteristicUUID);
}
} else {
fail.invoke("Characteristic " + characteristicUUID + " not found");
}
}
public static boolean qppEnable(
BluetoothGatt bluetoothGatt, String qppServiceUUID, String writeCharUUID) {
resetQppField();
if (qppServiceUUID != null) uuidQppService = qppServiceUUID;
if (writeCharUUID != null) uuidQppCharWrite = writeCharUUID;
if (bluetoothGatt == null || qppServiceUUID.isEmpty() || writeCharUUID.isEmpty()) {
Log.e(TAG, "invalid arguments");
return false;
}
BluetoothGattService qppService = bluetoothGatt.getService(UUID.fromString(qppServiceUUID));
if (qppService == null) {
Log.e(TAG, "Qpp service not found");
return false;
}
List<BluetoothGattCharacteristic> gattCharacteristics = qppService.getCharacteristics();
for (int j = 0; j < gattCharacteristics.size(); j++) {
BluetoothGattCharacteristic chara = gattCharacteristics.get(j);
if (chara.getUuid().toString().equals(writeCharUUID)) {
// Log.i(TAG,"Wr char is "+chara.getUuid().toString());
writeCharacteristic = chara;
} else if (chara.getProperties() == BluetoothGattCharacteristic.PROPERTY_NOTIFY) {
// Log.i(TAG,"NotiChar UUID is : "+chara.getUuid().toString());
notifyCharacteristic = chara;
arrayNtfCharList.add(chara);
}
}
if (!setCharacteristicNotification(bluetoothGatt, arrayNtfCharList.get(0), true)) return false;
notifyCharaIndex++;
return true;
}
@Override
public boolean isRequiredServiceSupported(final BluetoothGatt gatt) {
final BluetoothGattService service = gatt.getService(UART_SERVICE_UUID);
if (service != null) {
mTXCharacteristic = service.getCharacteristic(UART_TX_CHARACTERISTIC_UUID);
mRXCharacteristic = service.getCharacteristic(UART_RX_CHARACTERISTIC_UUID);
}
return mTXCharacteristic != null && mRXCharacteristic != null;
}
@Override
public boolean isRequiredServiceSupported(final BluetoothGatt gatt) {
final BluetoothGattService service =
gatt.getService(CYCLING_SPEED_AND_CADENCE_SERVICE_UUID);
if (service != null) {
mCSCMeasurementCharacteristic =
service.getCharacteristic(CSC_MEASUREMENT_CHARACTERISTIC_UUID);
}
return mCSCMeasurementCharacteristic != null;
}
public void writeLetter() {
char letter = motEcrit.charAt(indiceMotEcrit);
Log.i(tag, " envoie = " + letter);
sendByte = new String(new char[] {letter}).getBytes();
BluetoothGattCharacteristic characteristic =
bluetoothGatt.getService(SERVICE).getCharacteristic(CHARACTERISTIC);
characteristic.setValue(sendByte);
bluetoothGatt.writeCharacteristic(characteristic);
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
BluetoothGattService mOximeterMeasurement = gatt.getService(Service.OXIMETER);
if (mOximeterMeasurement != null) {
BluetoothGattCharacteristic characteristic =
mOximeterMeasurement.getCharacteristic(Characteristic.OXIMETER);
if (characteristic != null) {
setCharacteristic(gatt, characteristic, BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
}
}
}
private void turnOnService(BluetoothGatt gatt, UUID serviceUUID, UUID configUUID) {
BluetoothGattService humService = gatt.getService(serviceUUID);
BluetoothGattCharacteristic config = humService.getCharacteristic(configUUID);
config.setValue(
new byte[] {
1
}); // 01 for Humidity; 01 for +-2g deviation//NB: the config value is different for the
// Gyroscope
gatt.writeCharacteristic(config);
}
private void disableSensors(BluetoothGatt gatt) {
SICRunning = false;
BluetoothGattCharacteristic characteristic;
Log.d(TAG, "Disabling Sensors");
characteristic = gatt.getService(MAIN_SERVICE).getCharacteristic(CONFIG_CHAR);
byte finisher = 0x00;
characteristic.setValue(new byte[] {finisher});
gatt.writeCharacteristic(characteristic);
sicAct.stillRunning = true;
}
private void enableNotifications(BluetoothGatt gatt, UUID serviceUuid, UUID dataUuid) {
UUID CCC = UUID.fromString("00002902-0000-1000-8000-00805f9b34fb");
BluetoothGattService service = gatt.getService(serviceUuid);
BluetoothGattCharacteristic dataCharacteristic = service.getCharacteristic(dataUuid);
gatt.setCharacteristicNotification(dataCharacteristic, true); // Enabled locally
BluetoothGattDescriptor config = dataCharacteristic.getDescriptor(CCC);
config.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
gatt.writeDescriptor(config); // Enabled remotely
}
@Override
public void onServicesDiscovered(final BluetoothGatt gatt, final int status) {
Log.i(tag, "onServicesDiscovered");
BluetoothGattCharacteristic characteristic =
gatt.getService(SERVICE).getCharacteristic(CHARACTERISTIC);
if (characteristic != null) {
gatt.setCharacteristicNotification(characteristic, true);
bluetoothGatt = gatt;
characFound = true;
} else characFound = false;
connected = true;
}
private void writeSecurity(BluetoothGatt gatt) {
Log.wtf(TAG, "Security Written");
BluetoothGattCharacteristic securityCharacteristic = null;
byte[] packet = new byte[1];
int i = 153;
packet[0] = (byte) i;
securityCharacteristic = gatt.getService(MAIN_SERVICE).getCharacteristic(SECURITY_KEY);
securityCharacteristic.setValue(packet);
Log.wtf(TAG, packet[0] + "");
gatt.writeCharacteristic(securityCharacteristic);
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (gatt != null && status == BluetoothGatt.GATT_SUCCESS) {
bluetoothGattService = gatt.getService(bleGattService.getServiceUUID());
if (bluetoothGattService != null
&& bleGattService.initializeCharacteristics(bluetoothGattService, gatt)) {
callBack.onConnected();
return;
}
}
close();
}
@Override
public boolean isRequiredServiceSupported(final BluetoothGatt gatt) {
final BluetoothGattService service = gatt.getService(GLS_SERVICE_UUID);
if (service != null) {
mGlucoseMeasurementCharacteristic = service.getCharacteristic(GM_CHARACTERISTIC);
mGlucoseMeasurementContextCharacteristic =
service.getCharacteristic(GM_CONTEXT_CHARACTERISTIC);
mRecordAccessControlPointCharacteristic =
service.getCharacteristic(RACP_CHARACTERISTIC);
}
return mGlucoseMeasurementCharacteristic != null
&& mRecordAccessControlPointCharacteristic != null;
}
private boolean checkCloudWatchServiceSupported(BluetoothGatt gatt) {
BluetoothGattService cloudWatchGattService =
gatt.getService(UUID.fromString(BleUuid.SERVICE_DEVICE_INFORMATION));
if (cloudWatchGattService == null) {
LogTool.e(TAG, "Cloud Watch Service不支持");
} else {
BluetoothGattCharacteristic rfcommCharacteristic =
cloudWatchGattService.getCharacteristic(
UUID.fromString(BleUuid.CHAR_MANUFACTURER_NAME_STRING));
if (rfcommCharacteristic == null) {
LogTool.e(TAG, "RFCOMM BLUETOOTH COMMAND不支持");
} else {
gatt.setCharacteristicNotification(rfcommCharacteristic, true);
}
BluetoothGattCharacteristic heartbeatCharacteristic =
cloudWatchGattService.getCharacteristic(
UUID.fromString(BleUuid.CHAR_MODEL_NUMBER_STRING));
if (heartbeatCharacteristic == null) {
LogTool.e(TAG, "HEARTBEAT OR DISCONNECT COMMAND不支持");
} else {
gatt.setCharacteristicNotification(heartbeatCharacteristic, true);
}
}
BluetoothGattService currentTimeGattService =
gatt.getService(UUID.fromString(BleUuid.SERVICE_CURRENT_TIME));
if (currentTimeGattService == null) {
LogTool.e(TAG, "Current Time Service不支持");
} else {
BluetoothGattCharacteristic syncTimeCharacteristic =
currentTimeGattService.getCharacteristic(UUID.fromString(BleUuid.CHAR_CURRENT_TIME));
if (syncTimeCharacteristic == null) {
LogTool.e(TAG, "SYNCTIME COMMAND不支持");
} else {
gatt.setCharacteristicNotification(syncTimeCharacteristic, true);
}
}
return true;
}
/**
* When the device is bonded and has the Generic Attribute service and the Service Changed
* characteristic this method enables indications on this characteristic. In case one of the
* requirements is not fulfilled this method returns <code>false</code>.
*
* @param gatt the gatt device with services discovered
* @return <code>true</code> when the request has been sent, <code>false</code> when the device is
* not bonded, does not have the Generic Attribute service, the GA service does not have the
* Service Changed characteristic or this characteristic does not have the CCCD.
*/
private boolean ensureServiceChangedEnabled(final BluetoothGatt gatt) {
if (gatt == null) return false;
// The Service Changed indications have sense only on bonded devices
final BluetoothDevice device = gatt.getDevice();
if (device.getBondState() != BluetoothDevice.BOND_BONDED) return false;
final BluetoothGattService gaService = gatt.getService(GENERIC_ATTRIBUTE_SERVICE);
if (gaService == null) return false;
final BluetoothGattCharacteristic scCharacteristic =
gaService.getCharacteristic(SERVICE_CHANGED_CHARACTERISTIC);
if (scCharacteristic == null) return false;
Logger.i(mLogSession, "Service Changed characteristic found on a bonded device");
return enableIndications(scCharacteristic);
}
/**
* This method tries to enable notifications on the Battery Level characteristic.
*
* @param enable <code>true</code> to enable battery notifications, false to disable
* @return true if request has been sent
*/
public boolean setBatteryNotifications(final boolean enable) {
final BluetoothGatt gatt = mBluetoothGatt;
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);
Logger.a(mLogSession, "Enabling battery level notifications...");
Logger.v(mLogSession, "Enabling notifications for " + BATTERY_LEVEL_CHARACTERISTIC);
Logger.d(
mLogSession,
"gatt.writeDescriptor("
+ CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID
+ ", value=0x01-00)");
} else {
descriptor.setValue(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
Logger.a(mLogSession, "Disabling battery level notifications...");
Logger.v(mLogSession, "Disabling notifications for " + BATTERY_LEVEL_CHARACTERISTIC);
Logger.d(
mLogSession,
"gatt.writeDescriptor("
+ CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID
+ ", value=0x00-00)");
}
return gatt.writeDescriptor(descriptor);
}
return false;
}
/**
* Reads the battery level from the device.
*
* @return true if request has been sent
*/
public final boolean readBatteryLevel() {
final BluetoothGatt gatt = mBluetoothGatt;
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_READ) == 0) {
return setBatteryNotifications(true);
}
Logger.a(mLogSession, "Reading battery level...");
return readCharacteristic(batteryLevelCharacteristic);
}
/*
* from Samsung HRPService.java
*/
private void DummyReadForSecLevelCheck(BluetoothGatt btGatt) {
if (btGatt == null) return;
BluetoothGattService disService = btGatt.getService(DIS_UUID);
if (disService == null) {
reportConnectFailed("Dis service not found");
return;
}
BluetoothGattCharacteristic firmwareIdCharc =
disService.getCharacteristic(FIRMWARE_REVISON_UUID);
if (firmwareIdCharc == null) {
reportConnectFailed("firmware revison charateristic not found!");
return;
}
if (btGatt.readCharacteristic(firmwareIdCharc) == false) {
reportConnectFailed("firmware revison reading is failed!");
}
// continue in onCharacteristicRead
}
private void activateLED(int led) {
BluetoothGattCharacteristic characteristic;
// new byte [] finisher = 0x01;
characteristic = gatt2.getService(MAIN_SERVICE).getCharacteristic(FINISH);
if (led == 1) {
maintChar ^= 1 << 5;
}
if (led == 2) {
maintChar ^= 1 << 4;
}
if (led == 3) {
maintChar ^= 1 << 3;
}
if (led == 4) {
maintChar ^= 1 << 2;
}
characteristic.setValue(new byte[] {maintChar});
Log.wtf(TAG, "Value is: " + characteristic.getValue().toString());
gatt2.writeCharacteristic(characteristic);
}
public void readBatteryCharacteristic() {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
BluetoothGattService alarmService = null;
BluetoothGattCharacteristic batteryCharacter = null;
if (mBluetoothGatt != null) {
alarmService = mBluetoothGatt.getService(BATTERY_SERVICE_UUID);
}
if (alarmService != null) {
batteryCharacter =
alarmService.getCharacteristic(UUID.fromString("00002a19-0000-1000-8000-00805f9b34fb"));
}
if (batteryCharacter != null) {
mBluetoothGatt.readCharacteristic(batteryCharacter);
}
}
public void read(
UUID serviceUUID, UUID characteristicUUID, Callback successCallback, Callback failCallback) {
if (gatt == null) {
failCallback.invoke("BluetoothGatt is null");
return;
}
BluetoothGattService service = gatt.getService(serviceUUID);
BluetoothGattCharacteristic characteristic =
findReadableCharacteristic(service, characteristicUUID);
if (characteristic == null) {
failCallback.invoke("Characteristic " + characteristicUUID + " not found.");
} else {
readCallback = successCallback;
readFailCallback = failCallback;
if (!gatt.readCharacteristic(characteristic)) {
readCallback = null;
failCallback.invoke("Read failed");
}
}
}
private void startHR() {
BluetoothGattService mHRP = btGatt.getService(HRP_SERVICE);
if (mHRP == null) {
reportConnectFailed("HRP service not found!");
return;
}
BluetoothGattCharacteristic mHRMcharac =
mHRP.getCharacteristic(HEART_RATE_MEASUREMENT_CHARAC);
if (mHRMcharac == null) {
reportConnectFailed("HEART RATE MEASUREMENT charateristic not found!");
return;
}
BluetoothGattDescriptor mHRMccc = mHRMcharac.getDescriptor(CCC);
if (mHRMccc == null) {
reportConnectFailed("CCC for HEART RATE MEASUREMENT charateristic not found!");
return;
}
if (btGatt.readDescriptor(mHRMccc) == false) {
reportConnectFailed("readDescriptor() is failed");
return;
}
// Continue in onDescriptorRead
}
@Override
public void disconnect() {
if (btGatt == null) return;
if (btDevice == null) {
return;
}
boolean isConnected = mIsConnected;
if (mIsConnecting == false && mIsConnected == false) return;
if (mIsDisconnecting == true) return;
mIsConnected = false;
mIsConnecting = false;
mIsDisconnecting = true;
do {
BluetoothGattService mHRP = btGatt.getService(HRP_SERVICE);
if (mHRP == null) {
reportDisconnectFailed("HRP service not found!");
break;
}
BluetoothGattCharacteristic mHRMcharac =
mHRP.getCharacteristic(HEART_RATE_MEASUREMENT_CHARAC);
if (mHRMcharac == null) {
reportDisconnectFailed("HEART RATE MEASUREMENT charateristic not found!");
break;
}
if (!enableNotification(false, mHRMcharac)) {
reportDisconnectFailed("disableNotfication");
break;
}
} while (false);
btGatt.disconnect();
if (isConnected) {
System.out.println("close btGatt in onConnectionState");
// close btGatt in onConnectionState
synchronized (this) {
long end = System.currentTimeMillis() + 2000; // wait max 2
// seconds
while (btGatt != null && System.currentTimeMillis() < end) {
System.out.println("waiting for btGatt to become null");
try {
this.wait(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
BluetoothGatt copy = btGatt;
if (copy != null) {
System.out.println("close btGatt in disconnect() after waiting 2 secs");
copy.close();
btGatt = null;
}
}
} else {
System.out.println("close btGatt here in disconnect()");
btGatt.close();
btGatt = null;
}
btDevice = null;
mIsDisconnecting = false;
}
// This seems way too complicated
public void registerNotify(
UUID serviceUUID, UUID characteristicUUID, Callback success, Callback fail) {
Log.d(LOG_TAG, "registerNotify");
if (gatt == null) {
fail.invoke("BluetoothGatt is null");
return;
}
BluetoothGattService service = gatt.getService(serviceUUID);
BluetoothGattCharacteristic characteristic =
findNotifyCharacteristic(service, characteristicUUID);
// String key = generateHashKey(serviceUUID, characteristic);
if (characteristic != null) {
Log.d(LOG_TAG, "characteristic ok");
if (gatt.setCharacteristicNotification(characteristic, true)) {
BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(UUID.fromString(CHARACTERISTIC_NOTIFICATION_CONFIG));
if (descriptor != null) {
Log.d(LOG_TAG, "trovato descriptor");
// prefer notify over indicate
if ((characteristic.getProperties() & BluetoothGattCharacteristic.PROPERTY_NOTIFY) != 0) {
Log.d(LOG_TAG, "Characteristic " + characteristicUUID + " set NOTIFY");
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
} else if ((characteristic.getProperties()
& BluetoothGattCharacteristic.PROPERTY_INDICATE)
!= 0) {
Log.d(LOG_TAG, "Characteristic " + characteristicUUID + " set INDICATE");
descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE);
} else {
Log.d(
LOG_TAG,
"Characteristic "
+ characteristicUUID
+ " does not have NOTIFY or INDICATE property set");
}
if (gatt.writeDescriptor(descriptor)) {
// Tutto ok
Log.d(LOG_TAG, "registerNotify completato");
success.invoke();
} else {
fail.invoke(
"Failed to set client characteristic notification for " + characteristicUUID);
}
} else {
fail.invoke("Set notification failed for " + characteristicUUID);
}
} else {
fail.invoke("Failed to register notification for " + characteristicUUID);
}
} else {
fail.invoke("Characteristic " + characteristicUUID + " not found");
}
}
public void write(
UUID serviceUUID,
UUID characteristicUUID,
byte[] data,
Callback successCallback,
Callback failCallback,
int writeType) {
Log.d(LOG_TAG, "write interno peripheral");
if (gatt == null) {
failCallback.invoke("BluetoothGatt is null");
} else {
BluetoothGattService service = gatt.getService(serviceUUID);
BluetoothGattCharacteristic characteristic =
findWritableCharacteristic(service, characteristicUUID, writeType);
characteristic.setWriteType(writeType);
if (characteristic == null) {
failCallback.invoke("Characteristic " + characteristicUUID + " not found.");
} else {
if (writeQueue.size() > 0) {
failCallback.invoke("Scrittura con byte ancora in coda");
}
if (writeCallback != null) {
failCallback.invoke("Altra scrittura in corso");
}
if (writeQueue.size() == 0 && writeCallback == null) {
if (BluetoothGattCharacteristic.WRITE_TYPE_DEFAULT == writeType) {
writeCallback = successCallback;
writeFailCallback = failCallback;
} else successCallback.invoke();
if (data.length > 20) {
int dataLength = data.length;
int count = 0;
byte[] firstMessage = null;
while (count < dataLength && (dataLength - count > 20)) {
if (count == 0) {
firstMessage = Arrays.copyOfRange(data, count, count + 20);
} else {
byte[] splitMessage = Arrays.copyOfRange(data, count, count + 20);
writeQueue.add(splitMessage);
}
count += 20;
}
if (count < dataLength) {
// Rimangono byte in coda
byte[] splitMessage = Arrays.copyOfRange(data, count, data.length);
Log.d(LOG_TAG, "Lunghezza ultimo messaggio: " + splitMessage.length);
writeQueue.add(splitMessage);
}
Log.d(LOG_TAG, "Messaggi in coda: " + writeQueue.size());
doWrite(characteristic, firstMessage);
} else {
characteristic.setValue(data);
if (gatt.writeCharacteristic(characteristic)) {
Log.d(LOG_TAG, "write completato");
} else {
writeCallback = null;
failCallback.invoke("Write failed");
}
}
}
}
}
}