Example usage for android.bluetooth BluetoothGattCharacteristic getValue

Introduction

In this page you can find the example usage for android.bluetooth BluetoothGattCharacteristic getValue.

Prototype

public byte[] getValue() 

Source Link

Document

Get the stored value for this characteristic.

Usage

From source file:com.sdingba.su.lanya.UartService.java

/**
 * ??/*from  www.ja  va2 s. c o m*/
 *
 * @param action
 */
private void broadcastUpdate(final String action, final BluetoothGattCharacteristic characteristic) {
    final Intent intent = new Intent(action);

    // This is special handling for the Heart Rate Measurement profile.  Data parsing is
    // carried out as per profile specifications:
    // http://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicViewer.aspx?u=org.bluetooth.characteristic.heart_rate_measurement.xml
    if (TX_CHAR_UUID.equals(characteristic.getUuid())) {
        //?TXCC254x???0xfff4notify?
        Log.d(TAG, String.format("Received TX: %d", characteristic.getValue()));
        Log.w(TAG, "SDingBaLanYan characteristic.getUuid() = " + characteristic.getUuid());
        intent.putExtra(EXTRA_DATA, characteristic.getValue());
    } else {

    }
    LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
}

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From source file:is.hello.buruberi.bluetooth.stacks.android.NativeGattPeripheral.java

@Override
public void onCharacteristicChanged(@NonNull BluetoothGatt gatt,
        @NonNull BluetoothGattCharacteristic characteristic) {
    if (gatt == this.gatt) {
        final UUID serviceId = characteristic.getService().getUuid();
        final NativeGattService gattService = services.get(serviceId);
        gattService.dispatchNotify(characteristic.getUuid(), characteristic.getValue());
    }//  ww w .  j a va  2s  .co m
}

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From source file:org.bcsphere.bluetooth.BluetoothG43plus.java

private void readValueManage(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
    String deviceAddress = getDeviceAddress(gatt);
    JSONObject obj = new JSONObject();
    if (readValueCC.get(deviceAddress) != null) {
        if (status == BluetoothGatt.GATT_SUCCESS) {
            Tools.addProperty(obj, Tools.DEVICE_ADDRESS, deviceAddress);
            Tools.addProperty(obj, Tools.VALUE, Tools.encodeBase64(characteristic.getValue()));
            Tools.addProperty(obj, Tools.DATE, Tools.getDateString());
            readValueCC.get(deviceAddress).success(obj);
            readValueCC.remove(deviceAddress);
        } else {/*  w  ww .j  a  v  a  2  s.c o  m*/
            Tools.sendErrorMsg(readValueCC.get(deviceAddress));
            readValueCC.remove(deviceAddress);
        }
    }
}

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From source file:undot.safedrivers.BLE.BluetoothLeService.java

/**
 * Write information to the device on a given {@code BluetoothGattCharacteristic}. The content string and characteristic is 
 * only pushed into a ring buffer. All the transmission is based on the {@code onCharacteristicWrite} call back function, 
 * which is called directly in this function
 *
 * @param characteristic The characteristic to write to.
 *///from w  ww  .  j a  v  a  2  s .  c  om
public void writeCharacteristic(BluetoothGattCharacteristic characteristic) {
    if (mBluetoothAdapter == null || mBluetoothGatt == null) {
        Log.w(TAG, "BluetoothAdapter not initialized");
        return;
    }

    //The character size of TI CC2540 is limited to 17 bytes, otherwise characteristic can not be sent properly,
    //so String should be cut to comply this restriction. And something should be done here:
    String writeCharacteristicString;
    try {
        writeCharacteristicString = new String(characteristic.getValue(), "ISO-8859-1");
    } catch (UnsupportedEncodingException e) {
        // this should never happen because "US-ASCII" is hard-coded.
        throw new IllegalStateException(e);
    }
    System.out.println("allwriteCharacteristicString:" + writeCharacteristicString);

    //As the communication is asynchronous content string and characteristic should be pushed into an ring buffer for further transmission
    mCharacteristicRingBuffer
            .push(new BluetoothGattCharacteristicHelper(characteristic, writeCharacteristicString));
    System.out.println("mCharacteristicRingBufferlength:" + mCharacteristicRingBuffer.size());

    //The progress of onCharacteristicWrite and writeCharacteristic is almost the same. So callback function is called directly here
    //for details see the onCharacteristicWrite function
    mGattCallback.onCharacteristicWrite(mBluetoothGatt, characteristic, WRITE_NEW_CHARACTERISTIC);

}

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From source file:org.bcsphere.bluetooth.BluetoothG43plus.java

private void setNotificationManage(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
    String deviceAddress = getDeviceAddress(gatt);
    if (setNotificationCC.get(characteristic) != null) {
        JSONObject obj = new JSONObject();
        Tools.addProperty(obj, Tools.DEVICE_ADDRESS, deviceAddress);
        Tools.addProperty(obj, Tools.SERVICE_INDEX, recordServiceIndex.get(characteristic));
        Tools.addProperty(obj, Tools.CHARACTERISTIC_INDEX, recordCharacteristicIndex.get(characteristic));
        Tools.addProperty(obj, Tools.VALUE, Tools.encodeBase64(characteristic.getValue()));
        Tools.addProperty(obj, Tools.DATE, Tools.getDateString());
        PluginResult pluginResult = new PluginResult(PluginResult.Status.OK, obj);
        pluginResult.setKeepCallback(true);
        setNotificationCC.get(characteristic).sendPluginResult(pluginResult);
    }//from  ww w . j  a v  a 2  s .c o  m
}

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From source file:nodomain.freeyourgadget.gadgetbridge.service.devices.miband2.MiBand2Support.java

@Override
public boolean onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic,
        int status) {
    UUID characteristicUUID = characteristic.getUuid();
    if (MiBand2Service.UUID_CHARACTERISTIC_AUTH.equals(characteristicUUID)) {
        LOG.info("KEY AES SEND");
        logMessageContent(characteristic.getValue());
        return true;
    }/*from   w w  w .  j ava  2  s.  c  o  m*/
    return false;
}

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From source file:nodomain.freeyourgadget.gadgetbridge.service.devices.miband2.MiBand2Support.java

@Override
public boolean onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
    super.onCharacteristicChanged(gatt, characteristic);

    UUID characteristicUUID = characteristic.getUuid();
    if (MiBand2Service.UUID_CHARACTERISTIC_6_BATTERY_INFO.equals(characteristicUUID)) {
        handleBatteryInfo(characteristic.getValue(), BluetoothGatt.GATT_SUCCESS);
        return true;
    } else if (MiBandService.UUID_CHARACTERISTIC_REALTIME_STEPS.equals(characteristicUUID)) {
        handleRealtimeSteps(characteristic.getValue());
        return true;
    } else if (GattCharacteristic.UUID_CHARACTERISTIC_HEART_RATE_MEASUREMENT.equals(characteristicUUID)) {
        handleHeartrate(characteristic.getValue());
        return true;
    } else if (MiBand2Service.UUID_CHARACTERISTIC_AUTH.equals(characteristicUUID)) {
        LOG.info("AUTHENTICATION?? " + characteristicUUID);
        logMessageContent(characteristic.getValue());
        return true;
    } else if (MiBand2Service.UUID_CHARACTERISTIC_10_BUTTON.equals(characteristicUUID)) {
        handleButtonPressed(characteristic.getValue());
        return true;
    } else if (MiBand2Service.UUID_CHARACTERISTIC_7_REALTIME_STEPS.equals(characteristicUUID)) {
        handleRealtimeSteps(characteristic.getValue());
        return true;
    } else {//from ww w. jav  a2  s . c om
        LOG.info("Unhandled characteristic changed: " + characteristicUUID);
        logMessageContent(characteristic.getValue());
    }
    return false;
}

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From source file:nodomain.freeyourgadget.gadgetbridge.service.devices.miband2.MiBand2Support.java

@Override
public boolean onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic,
        int status) {
    super.onCharacteristicRead(gatt, characteristic, status);

    UUID characteristicUUID = characteristic.getUuid();
    if (GattCharacteristic.UUID_CHARACTERISTIC_GAP_DEVICE_NAME.equals(characteristicUUID)) {
        handleDeviceName(characteristic.getValue(), status);
        return true;
    } else if (MiBand2Service.UUID_CHARACTERISTIC_6_BATTERY_INFO.equals(characteristicUUID)) {
        handleBatteryInfo(characteristic.getValue(), status);
        return true;
    } else if (GattCharacteristic.UUID_CHARACTERISTIC_HEART_RATE_MEASUREMENT.equals(characteristicUUID)) {
        logHeartrate(characteristic.getValue(), status);
        return true;
    } else if (MiBand2Service.UUID_CHARACTERISTIC_7_REALTIME_STEPS.equals(characteristicUUID)) {
        handleRealtimeSteps(characteristic.getValue());
        return true;
    } else if (MiBand2Service.UUID_CHARACTERISTIC_10_BUTTON.equals(characteristicUUID)) {
        handleButtonPressed(characteristic.getValue());
        return true;
    } else {/*from ww  w  . j  a  v  a2  s. co  m*/
        LOG.info("Unhandled characteristic read: " + characteristicUUID);
        logMessageContent(characteristic.getValue());
    }
    return false;
}

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From source file:com.lef.ibeacon.service.UpdateService.java

public UUID decodeBeaconUUID(final BluetoothGattCharacteristic characteristic) {
    final byte[] data = characteristic.getValue();
    //      logw("Characteristic get value: " + data.length);            
    final long mostSigBits = (unsignedByteToLong(data[0]) << 56) + (unsignedByteToLong(data[1]) << 48)
            + (unsignedByteToLong(data[2]) << 40) + (unsignedByteToLong(data[3]) << 32)
            + (unsignedByteToLong(data[4]) << 24) + (unsignedByteToLong(data[5]) << 16)
            + (unsignedByteToLong(data[6]) << 8) + unsignedByteToLong(data[7]);
    //      logw("mostSigBits value: " + mostSigBits);
    final long leastSigBits = (unsignedByteToLong(data[8]) << 56) + (unsignedByteToLong(data[9]) << 48)
            + (unsignedByteToLong(data[10]) << 40) + (unsignedByteToLong(data[11]) << 32)
            + (unsignedByteToLong(data[12]) << 24) + (unsignedByteToLong(data[13]) << 16)
            + (unsignedByteToLong(data[14]) << 8) + unsignedByteToLong(data[15]);
    //      logw("leastSigBits value: " + leastSigBits);

    UUID uuid = new UUID(mostSigBits, leastSigBits);
    //      logw("UUID: " + uuid.toString());      
    return uuid;//from  w  ww  .  ja va 2 s.  c  om
}

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From source file:com.ble.BLService.java

private void broadcastUpdate(final String action, final BluetoothGattCharacteristic characteristic) {

    final Intent intent = new Intent(action);

    if (UUID_STM32_ACCELEROMETER_PARAMETER.equals(characteristic.getUuid())) {
        // una elaborazione dei dati inviati dalla scheda ST32 che invia i dati come un flusso di byte ad otetti
        //quindi converto in esadecimale e scambio i primi due ottetti per ottrenerli in ordine
        //0000-0000-0000-0000|acc_x_bit_meno_significativi[8byte]-acc_x_bit_significativi[8byte]|acc_y_meno..-acc_y..|acc_z_meno...-acc_
        // in hex ogni 4 byte ho un valore
        //0-1-2-3|4-5-6-7|8-9-10-11|12-13-14-15
        //per acc_x devo avere i blocchi 6-7-4-5 affiancati
        //per acc_y =10-11-8-9
        //per acc_z=14-15-12-13
        //acc_x=sb1.append(sb.substring(6, 8)) concatenato con sb1.append(sb.substring(4, 6));
        //magari esiste un metodo meno contorto per recuperarli,io purtroppo non l'ho trovato :-(
        byte[] stream_byte_received = characteristic.getValue();

        StringBuilder sb = new StringBuilder();
        for (byte b : stream_byte_received) {
            sb.append(String.format("%02x", b));
        }/*from w  w w  .  ja  v  a 2s  . c  o m*/

        StringBuilder sb1 = new StringBuilder();
        sb1.append(sb.substring(6, 8));
        sb1.append(sb.substring(4, 6));
        String test = sb1.toString();
        short acc_x = (short) Integer.parseInt(test, 16);

        sb1 = new StringBuilder();
        sb1.append(sb.substring(10, 12));
        sb1.append(sb.substring(8, 10));
        test = sb1.toString();
        short acc_y = (short) Integer.parseInt(test, 16);

        sb1 = new StringBuilder();
        sb1.append(sb.substring(14, 16));
        sb1.append(sb.substring(12, 14));
        test = sb1.toString();
        short acc_z = (short) Integer.parseInt(test, 16);

        sb1 = new StringBuilder();
        sb1.append(sb.substring(18, 20));
        sb1.append(sb.substring(16, 18));
        test = sb1.toString();
        short temperatura = (short) Integer.parseInt(test, 16);

        sb1 = new StringBuilder();
        sb1.append(sb.substring(22, 24));
        sb1.append(sb.substring(20, 22));
        test = sb1.toString();
        short Humidity = (short) Integer.parseInt(test, 16);

        //EVENTUALE SENSORE DA CATTURARE ESEMPIO TEMPERATURA,AFFIANCO NEL VETTORE GATT DEL DEVICE ST32
        //16-17-18-19
        //sbX.append(sb.substring(18));sbX.append(sb.substring(16, 18));

        Log.w("ADC3", "StringBuilder " + sb + "************************** " + acc_x + " | " + acc_y + " | "
                + acc_z + " | ");
        String accelerometer = "|X:" + acc_x + " |Y: " + acc_y + " |Z: " + acc_z + " | ";
        String extra_data = "Temp:" + temperatura + "\nHumidity:" + Humidity + "%\nAccelerometer:\t"
                + accelerometer;
        intent.putExtra(EXTRA_DATA, extra_data);

    } else {
        final byte[] data = characteristic.getValue();
        if (data != null && data.length > 0) {
            final StringBuilder stringBuilder = new StringBuilder(data.length);
            for (byte byteChar : data)
                stringBuilder.append(String.format("%02X", byteChar));
            intent.putExtra(EXTRA_DATA, new String(data) + "\n" + stringBuilder.toString());
        }
    }
    sendBroadcast(intent);
}

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