/**
* Enables or disables notification on a give characteristic.
*
* @param characteristic Characteristic to act on.
* @param enabled If true, enable notification. False otherwise.
*/
public void setCharacteristicNotification(
BluetoothGattCharacteristic characteristic, boolean enabled) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);
// This is specific to Heart Rate Measurement.
if (UUID_HEART_RATE_MEASUREMENT.equals(characteristic.getUuid())) {
BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(
UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
// specific for pm2.5
if (UUID_FFE0.equals(characteristic.getUuid())) {
BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(
UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
}
/** Write the hello input descriptor to the device */
private void writeHelloInputCharacteristic() {
// Set the enable/disable notification settings
BluetoothGattCharacteristic notifyCharacteristic =
GattUtils.getCharacteristic(
mPickedDeviceGatt,
Constants.HELLO_SERVICE_UUID,
Constants.HELLO_CHARACTERISTIC_INPUT_UUID);
int notificationState = mSpinnerHelloInput.getSelectedItemPosition();
if (notificationState >= 0 && notificationState <= 2) {
BluetoothGattDescriptor descriptor =
GattUtils.getDescriptor(
mPickedDeviceGatt,
Constants.HELLO_SERVICE_UUID,
Constants.HELLO_CHARACTERISTIC_INPUT_UUID,
Constants.CLIENT_CONFIG_DESCRIPTOR_UUID);
if (notificationState > 0) {
mPickedDeviceGatt.setCharacteristicNotification(notifyCharacteristic, true);
if (notificationState == 1) {
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
} else if (notificationState == 2) {
descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE);
}
} else {
mPickedDeviceGatt.setCharacteristicNotification(notifyCharacteristic, false);
descriptor.setValue(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
}
mRequestQueue.addWriteDescriptor(mPickedDeviceGatt, descriptor);
mRequestQueue.execute();
}
}
private static boolean setCharacteristicNotification(
BluetoothGatt bluetoothGatt, BluetoothGattCharacteristic characteristic, boolean enabled) {
if (bluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return false;
}
bluetoothGatt.setCharacteristicNotification(characteristic, enabled);
try {
BluetoothGattDescriptor descriptor = characteristic.getDescriptor(UUID.fromString(UUIDDes));
if (descriptor != null) {
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
return (bluetoothGatt.writeDescriptor(descriptor));
} else {
Log.e(TAG, "descriptor is null");
return false;
}
} catch (NullPointerException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
}
return true;
}
/*
* 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);
}
// 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!");
}
}
private void onClientCharacteristicConfigurationDescriptorFound(
BluetoothGattCharacteristic characteristic, BluetoothGattDescriptor descriptor) {
Log.d();
mBluetoothGatt.setCharacteristicNotification(characteristic, true);
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
public void enableNotification(int index, UUID service, UUID characteristic) {
BluetoothGattService Service;
BluetoothGattCharacteristic Characteristic;
BluetoothGattDescriptor Descriptor;
if (index < 0 || index > mBluetoothGatt.length) {
Log.e(TAG, "Read char index out of bound");
return;
}
if (mBluetoothGatt[index] == null) {
Log.e(TAG, "GATT isn't connected");
return;
}
if (service != null && characteristic != null) {
Service = mBluetoothGatt[index].getService(service);
if (Service == null) {
Log.e(TAG, "Service not found");
return;
}
Characteristic = Service.getCharacteristic(characteristic);
if (Characteristic == null) {
Log.e(TAG, "Characteristic not found");
return;
}
mBluetoothGatt[index].setCharacteristicNotification(Characteristic, true);
Descriptor = Characteristic.getDescriptor(CCCD);
Descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt[index].writeDescriptor(Descriptor);
Log.i(TAG, "CCCD set");
}
}
/**
* 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;
}
public void listenToCaliperMeasurements(final BluetoothGattCharacteristic characteristic) {
if (characteristic == null) {
Log.e(
TAG,
"Haven't discovered this feature yet, please wait until it has connected once, and or try disconnecting and reconnecting.");
return;
}
Log.d(TAG, "Starting to listen to notifications from " + characteristic.getUuid());
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);
// Set descriptor to enable notifications
BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(
UUID.fromString(SCalEvoBluetoothSpecifications.CLIENT_CHARACTERISTIC_CONFIG));
if (descriptor == null) {
Log.e(
TAG,
"descriptor "
+ SCalEvoBluetoothSpecifications.CLIENT_CHARACTERISTIC_CONFIG
+ "was null, looking for others.");
List<BluetoothGattDescriptor> descriptors = characteristic.getDescriptors();
String uuid;
for (BluetoothGattDescriptor aDescriptor : descriptors) {
uuid = aDescriptor.getUuid().toString();
Log.e(TAG, "BluetoothGattDescriptor " + uuid);
descriptor = aDescriptor;
}
if (descriptor == null) {
Log.e(
TAG,
"Couldn't find any descriptors for this characteristic, cant enable notifications");
return;
} else {
Log.e(TAG, "Trying the last descriptor to enable notifications");
}
}
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothLeService.writeDescriptor(descriptor);
Toast.makeText(this, "Ready", Toast.LENGTH_SHORT).show();
Log.e(TAG, "Ready to read from characteristic " + characteristic.getUuid());
}
}
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
}
private boolean enableNotification(boolean onoff, BluetoothGattCharacteristic charac) {
if (btGatt == null) return false;
if (!btGatt.setCharacteristicNotification(charac, onoff)) {
System.err.println("btGatt.setCharacteristicNotification() failed");
return false;
}
BluetoothGattDescriptor clientConfig = charac.getDescriptor(CCC);
if (clientConfig == null) {
System.err.println("clientConfig == null");
return false;
}
if (onoff) {
clientConfig.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
} else {
clientConfig.setValue(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE);
}
return btGatt.writeDescriptor(clientConfig);
}
/**
* Enables or disables notification on a give characteristic.
*
* @param characteristic Characteristic to act on.
* @param enabled If true, enable notification. False otherwise.
*/
public void setCharacteristicNotification(
BluetoothGattCharacteristic characteristic, boolean enabled) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);
BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(UUID.fromString(GattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
if (descriptor != null) {
System.out.println("write descriptor");
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
}
/**
* Enables or disables notification on a give characteristic.
*
* @param characteristic Characteristic to act on.
* @param enabled If true, enable notification. False otherwise.
*/
public void setCharacteristicNotification(
BluetoothGattCharacteristic characteristic, boolean enabled) {
if (mBluetoothAdapter == null || mBluetoothGatt == null) {
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.setCharacteristicNotification(characteristic, enabled);
// This is specific to Ajna Device
if (UUID_QUATERNERION_PACKET_CHAR.equals(characteristic.getUuid())
|| UUID_QUATERNERION_DATA_CHAR.equals(characteristic.getUuid())
|| UUID_OTHER_DATA_CHAR.equals(characteristic.getUuid())) {
BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(
UUID.fromString(SampleGattAttributes.CLIENT_CHARACTERISTIC_CONFIG));
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
}
// ----------------------------------------------------------------------------------------------------------------
// Enable notification on a characteristic
// For information only. This application uses Indication, not Notification
public void setCharacteristicNotification(
BluetoothGattCharacteristic characteristic, boolean enabled) {
if (mBluetoothAdapter == null
|| mBluetoothGatt == null) { // Check that we have a GATT connection
Log.w(TAG, "BluetoothAdapter not initialized");
return;
}
mBluetoothGatt.setCharacteristicNotification(
characteristic, enabled); // Enable notification and indication for the characteristic
// if (UUID_MLDP_DATA_PRIVATE_CHARACTERISTIC.equals(characteristic.getUuid())) {
BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(
UUID_CHARACTERISTIC_NOTIFICATION_CONFIG); // Get the descripter that enables
// notification on the server
descriptor.setValue(
BluetoothGattDescriptor
.ENABLE_NOTIFICATION_VALUE); // Set the value of the descriptor to enable notification
mBluetoothGatt.writeDescriptor(descriptor); // Write the descriptor
// }
}
/**
* Enables indications on given characteristic
*
* @return true is the request has been sent, false if one of the arguments was <code>null</code>
* or the characteristic does not have the CCCD.
*/
protected final boolean enableIndications(final BluetoothGattCharacteristic characteristic) {
final BluetoothGatt gatt = mBluetoothGatt;
if (gatt == null || characteristic == null) return false;
// Check characteristic property
final int properties = characteristic.getProperties();
if ((properties & BluetoothGattCharacteristic.PROPERTY_INDICATE) == 0) return false;
gatt.setCharacteristicNotification(characteristic, true);
final BluetoothGattDescriptor descriptor =
characteristic.getDescriptor(CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
if (descriptor != null) {
descriptor.setValue(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE);
Logger.v(mLogSession, "Enabling indications for " + characteristic.getUuid());
Logger.d(
mLogSession,
"gatt.writeDescriptor("
+ CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID
+ ", value=0x02-00)");
return gatt.writeDescriptor(descriptor);
}
return 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");
}
}
private void displayGattServices(List<BluetoothGattService> gattServices) {
if (gattServices == null) return;
for (BluetoothGattService gattService : gattServices) {
// -----Service的字段信息-----//
int type = gattService.getType();
Log.e(TAG, "-->service type:" + Utils.getServiceType(type));
Log.e(TAG, "-->includedServices size:" + gattService.getIncludedServices().size());
Log.e(TAG, "-->service uuid:" + gattService.getUuid());
// -----Characteristics的字段信息-----//
List<BluetoothGattCharacteristic> gattCharacteristics = gattService.getCharacteristics();
for (final BluetoothGattCharacteristic gattCharacteristic : gattCharacteristics) {
Log.e(TAG, "---->char uuid:" + gattCharacteristic.getUuid());
int permission = gattCharacteristic.getPermissions();
Log.e(TAG, "---->char permission:" + Utils.getCharPermission(permission));
int property = gattCharacteristic.getProperties();
Log.e(TAG, "---->char property:" + Utils.getCharPropertie(property));
byte[] data = gattCharacteristic.getValue();
if (data != null && data.length > 0) {
Log.e(TAG, "---->char value:" + Utils.bytesToHexString(data));
}
if (gattService.getUuid().toString().equals(UUID_KEY_SERVICE)) { // 如果是温度计的service
// UUID_KEY_DATA是可以跟蓝牙模块串口通信的Characteristic
if (gattCharacteristic.getUuid().toString().equals(UUID_KEY_DATA_RECIV)) {
// 测试读取当前Characteristic数据，会触发mOnDataAvailable.onCharacteristicRead()
mHandler.postDelayed(
new Runnable() {
@Override
public void run() {
mBLE_reciv.readCharacteristic(gattCharacteristic);
}
},
500);
// 接受Characteristic被写的通知,收到蓝牙模块的数据后会触发mOnDataAvailable.onCharacteristicWrite()
mBLE_reciv.setCharacteristicNotification(gattCharacteristic, true);
BluetoothGattDescriptor localBluetoothGattDescriptor =
gattCharacteristic.getDescriptor(UUID.fromString(CCC));
localBluetoothGattDescriptor.setValue(
BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(localBluetoothGattDescriptor);
appState.gattCharacteristic_reciv_dianzichen = gattCharacteristic;
// 设置数据内容
// gattCharacteristic.setValue("0");
// 往蓝牙模块写入数据
// appState.mBLE_reciv_dianzichen.writeCharacteristic(gattCharacteristic);
}
// UUID_KEY_DATA是可以跟蓝牙模块串口通信的Characteristic
if (gattCharacteristic.getUuid().toString().equals(UUID_KEY_DATA_SEND)) {
// 测试读取当前Characteristic数据，会触发mOnDataAvailable.onCharacteristicRead()
mHandler.postDelayed(
new Runnable() {
@Override
public void run() {
mBLE_send.readCharacteristic(gattCharacteristic);
// Log.i("info", "appState.mBLE_send_dianzichen 尝试读数据");
}
},
500);
// 接受Characteristic被写的通知,收到蓝牙模块的数据后会触发mOnDataAvailable.onCharacteristicWrite()
mBLE_send.setCharacteristicNotification(gattCharacteristic, true);
// 设置数据内容
// gattCharacteristic.setValue("send data->");
// 往蓝牙模块写入数据
// mBLE_send.writeCharacteristic(gattCharacteristic);
if (!appState.firstActivityRunning) {
appState.gattCharacteristic_send_dianzichen = gattCharacteristic;
appState.file.write2SDFromInput("inurse/", "Dianzichen.txt", appState.deviceAddress);
Intent it = new Intent(this, DianzichenActivity.class);
startActivityForResult(it, 0); // 配合onActivityResult，当FirstActivity退出时获得一个0值，然后自己也退出
// moveTaskToBack(true); //这一句是整个程序返回桌面
appState.firstActivityRunning = true;
}
}
} // 结束 if ( gattService.getUuid().toString().equals(UUID_KEY_SERVICE) )
// -----Descriptors的字段信息-----//
List<BluetoothGattDescriptor> gattDescriptors = gattCharacteristic.getDescriptors();
for (BluetoothGattDescriptor gattDescriptor : gattDescriptors) {
Log.e(TAG, "-------->desc uuid:" + gattDescriptor.getUuid());
int descPermission = gattDescriptor.getPermissions();
Log.e(TAG, "-------->desc permission:" + Utils.getDescPermission(descPermission));
byte[] desData = gattDescriptor.getValue();
if (desData != null && desData.length > 0) {
Log.e(TAG, "-------->desc value:" + Utils.bytesToHexString(data));
}
// soloman 接收的uuid要设置CCC通知enable，并回写到BluetoothGatt
// if (gattDescriptor.getUuid().toString().equals(CCC)){
// gattDescriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
// mBluetoothGatt.writeDescriptor(gattDescriptor);
// }
}
}
} //
}
private void enableNotify() {
BluetoothGattService service = getSupportedGattService();
if (null == service) {
LogUtil.info(TAG, "BluetoothGattService service is null");
boolean isconnectok = connect();
if (!isconnectok) {
connect();
}
return;
}
BluetoothGattCharacteristic gattCharacteristic = null;
switch (DEVICE_TYPE) {
case 1:
gattCharacteristic =
service.getCharacteristic(UUID.fromString(BLEConstants.UUID_CHARACTERISTIC));
break;
case 2:
gattCharacteristic =
service.getCharacteristic(
UUID.fromString(BLEConstants.UUID_BLOOD_PRESSURE_CHARACTERISTIC));
break;
case 3:
gattCharacteristic =
service.getCharacteristic(UUID.fromString(BLEConstants.UUID_BLOODSUGAR_CHARACTERISTIC));
break;
default:
gattCharacteristic =
service.getCharacteristic(UUID.fromString(BLEConstants.UUID_CHARACTERISTIC));
break;
}
if (null == gattCharacteristic) {
LogUtil.info(TAG, "BluetoothGattCharacteristic gattCharacteristic is null");
return;
}
boolean bool = mBluetoothGatt.setCharacteristicNotification(gattCharacteristic, true);
LogUtil.info(TAG, "setCharacteristicNotification:" + bool);
BluetoothGattDescriptor descriptor = null;
switch (DEVICE_TYPE) {
case 1:
descriptor =
gattCharacteristic.getDescriptor(UUID.fromString(BLEConstants.UUID_DESCRIPTER));
case 2:
descriptor =
gattCharacteristic.getDescriptor(
UUID.fromString(BLEConstants.UUID_BLOOD_PRESSURE_DESCRIPTER));
break;
case 3:
descriptor =
gattCharacteristic.getDescriptor(
UUID.fromString(BLEConstants.UUID_BLOODSUGAR_DESCRIPTER));
break;
default:
descriptor =
gattCharacteristic.getDescriptor(UUID.fromString(BLEConstants.UUID_DESCRIPTER));
break;
}
if (null != descriptor) {
descriptor.setValue(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE);
mBluetoothGatt.writeDescriptor(descriptor);
}
}