@Override
public final void onCharacteristicChanged(
final BluetoothGatt gatt, final BluetoothGattCharacteristic characteristic) {
final String data = ParserUtils.parse(characteristic);
if (isBatteryLevelCharacteristic(characteristic)) {
Logger.i(
mLogSession,
"Notification received from " + characteristic.getUuid() + ", value: " + data);
final int batteryValue =
characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, 0);
Logger.a(mLogSession, "Battery level received: " + batteryValue + "%");
mCallbacks.onBatteryValueReceived(batteryValue);
} else {
final BluetoothGattDescriptor cccd =
characteristic.getDescriptor(CLIENT_CHARACTERISTIC_CONFIG_DESCRIPTOR_UUID);
final boolean notifications =
cccd == null
|| cccd.getValue() == null
|| cccd.getValue().length != 2
|| cccd.getValue()[0] == 0x01;
if (notifications) {
Logger.i(
mLogSession,
"Notification received from " + characteristic.getUuid() + ", value: " + data);
onCharacteristicNotified(gatt, characteristic);
} else { // indications
Logger.i(
mLogSession,
"Indication received from " + characteristic.getUuid() + ", value: " + data);
onCharacteristicIndicated(gatt, characteristic);
}
}
}
@Override
public void onCharacteristicWrite(
final BluetoothGatt gatt,
final BluetoothGattCharacteristic characteristic,
final int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
Logger.i(
mLogSession,
"Data written to "
+ characteristic.getUuid()
+ ", value: "
+ ParserUtils.parse(characteristic.getValue()));
// The value has been written. Notify the manager and proceed with the initialization queue.
onCharacteristicWrite(gatt, characteristic);
nextRequest();
} else if (status == BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) {
if (gatt.getDevice().getBondState() != BluetoothDevice.BOND_NONE) {
DebugLogger.w(TAG, ERROR_AUTH_ERROR_WHILE_BONDED);
mCallbacks.onError(ERROR_AUTH_ERROR_WHILE_BONDED, status);
}
} else {
DebugLogger.e(TAG, "onCharacteristicRead error " + status);
onError(ERROR_READ_CHARACTERISTIC, status);
}
}
@Override
public final void onDescriptorWrite(
final BluetoothGatt gatt, final BluetoothGattDescriptor descriptor, final int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
Logger.i(
mLogSession,
"Data written to descr. "
+ descriptor.getUuid()
+ ", value: "
+ ParserUtils.parse(descriptor));
if (isServiceChangedCCCD(descriptor)) {
Logger.a(mLogSession, "Service Changed notifications enabled");
if (!readBatteryLevel()) nextRequest();
} else if (isBatteryLevelCCCD(descriptor)) {
final byte[] value = descriptor.getValue();
if (value != null && value.length > 0 && value[0] == 0x01) {
Logger.a(mLogSession, "Battery Level notifications enabled");
nextRequest();
} else Logger.a(mLogSession, "Battery Level notifications disabled");
} else {
nextRequest();
}
} else if (status == BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) {
if (gatt.getDevice().getBondState() != BluetoothDevice.BOND_NONE) {
DebugLogger.w(TAG, ERROR_AUTH_ERROR_WHILE_BONDED);
mCallbacks.onError(ERROR_AUTH_ERROR_WHILE_BONDED, status);
}
} else {
DebugLogger.e(TAG, "onDescriptorWrite error " + status);
onError(ERROR_WRITE_DESCRIPTOR, status);
}
}
@Override
public final void onCharacteristicRead(
final BluetoothGatt gatt,
final BluetoothGattCharacteristic characteristic,
final int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
Logger.i(
mLogSession,
"Read Response received from "
+ characteristic.getUuid()
+ ", value: "
+ ParserUtils.parse(characteristic));
if (isBatteryLevelCharacteristic(characteristic)) {
final int batteryValue =
characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, 0);
Logger.a(mLogSession, "Battery level received: " + batteryValue + "%");
mCallbacks.onBatteryValueReceived(batteryValue);
// The Battery Level value has been read. Let's try to enable Battery Level notifications.
// If the Battery Level characteristic does not have the NOTIFY property, proceed with the
// initialization queue.
if (!setBatteryNotifications(true)) nextRequest();
} else {
// The value has been read. Notify the manager and proceed with the initialization queue.
onCharacteristicRead(gatt, characteristic);
nextRequest();
}
} else if (status == BluetoothGatt.GATT_INSUFFICIENT_AUTHENTICATION) {
if (gatt.getDevice().getBondState() != BluetoothDevice.BOND_NONE) {
DebugLogger.w(TAG, ERROR_AUTH_ERROR_WHILE_BONDED);
mCallbacks.onError(ERROR_AUTH_ERROR_WHILE_BONDED, status);
}
} else {
DebugLogger.e(TAG, "onCharacteristicRead error " + status);
onError(ERROR_READ_CHARACTERISTIC, status);
}
}
