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);
}
public ProgramInfo(byte[] mImage, SensorTagDevice device) {
// this.mFileImgHdr = mFileImgHdr;
mFileImgHdr = new ImageHdr(mImage);
mFileBuffer = mImage;
this.mBtLeService = BluetoothLeService.getInstance();
this.deviceAddress = device.getAddress();
BluetoothGattService mOadService = device.getOadService();
BluetoothGattService mConnControlService = device.getConnControlService();
// Characteristics list
List<BluetoothGattCharacteristic> mCharListOad = mOadService.getCharacteristics();
List<BluetoothGattCharacteristic> mCharListCc = mConnControlService.getCharacteristics();
mServiceOk = mCharListOad.size() == 2 && mCharListCc.size() >= 3;
if (mServiceOk) {
mCharIdentify = mCharListOad.get(0);
mCharBlock = mCharListOad.get(1);
mCharBlock.setWriteType(BluetoothGattCharacteristic.WRITE_TYPE_NO_RESPONSE);
mCharConnReq = mCharListCc.get(1);
mBtLeService.setCharacteristicNotification(deviceAddress, mCharBlock, true);
if (Build.VERSION.SDK_INT >= 21) {
mBtLeService.requestConnectionPriority(
deviceAddress, BluetoothGatt.CONNECTION_PRIORITY_HIGH);
}
setConnectionParameters();
}
}
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");
}
}
}
}
}
}