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:Main.java

public static int getBatteryLevel(BluetoothGattCharacteristic characteristic) {
    return characteristic.getValue()[0] & 0xff;
}

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From source file:Main.java

/**
 * Returns the SystemID from the given characteristic
 * //from   w  ww.  j a v a2  s .  c  o m
 * @param characteristic
 * @return {@link String}
 */
@SuppressLint("NewApi")
public static String getSYSID(BluetoothGattCharacteristic characteristic) {
    final byte[] data = characteristic.getValue();
    final StringBuilder stringBuilder = new StringBuilder(data.length);
    if (data != null && data.length > 0) {
        for (byte byteChar : data)
            stringBuilder.append(String.format("%02X ", byteChar));
    }

    return String.valueOf(stringBuilder);
}

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From source file:Main.java

/**
 * Returns the PNP ID from the given characteristic
 * //from  w  ww . j  a  v a2 s.c o  m
 * @param characteristic
 * @return {@link String}
 */
@SuppressLint("NewApi")
public static String getPNPID(BluetoothGattCharacteristic characteristic) {
    final byte[] data = characteristic.getValue();
    final StringBuilder stringBuilder = new StringBuilder(data.length);
    if (data != null && data.length > 0) {
        for (byte byteChar : data)
            stringBuilder.append(String.format("%02X ", byteChar));
    }

    return String.valueOf(stringBuilder);
}

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From source file:Main.java

/**
 * Run actions given that the read operation
 * of part 1 of the beacon's advertising packet
 * has completed./*  ww  w . ja v  a 2 s.c om*/
 *
 * @param bluetoothGattCharacteristic
 */
private static void handleGattCharacteristicRead_beaconDataPart1(
        BluetoothGattCharacteristic bluetoothGattCharacteristic) {
    // Store the read value byte array
    mAdvertisingPacketData_read = bluetoothGattCharacteristic.getValue();
    // Read the beacon's advertising packet length
    readCharacteristic_beaconDataLength();
}

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From source file:com.orange.beaconme_sdk.ble.control.BeaconTagDeviceUpdater.java

private byte[] getEnablingValueForChar(BluetoothGattCharacteristic characteristic, boolean enable) {
    byte[] newValue = Arrays.copyOf(characteristic.getValue(), characteristic.getValue().length);
    if (characteristic.getUuid().equals(BeaconTagDevice.SLEEP_CHARACTERISTIC_UUID)) {
        newValue[0] = 0;// w  w w .  j  av  a2s  .c o  m
        newValue[1] = 0;
    } else {
        newValue[0] = (byte) (enable ? 1 : 0);
    }
    return newValue;
}

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

@Override
public boolean onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
    UUID characteristicUUID = characteristic.getUuid();
    if (MiBand2Service.UUID_CHARACTERISTIC_AUTH.equals(characteristicUUID)) {
        try {/*from ww w. j  ava2 s  .  c  o  m*/
            byte[] value = characteristic.getValue();
            getSupport().logMessageContent(value);
            if (value[0] == MiBand2Service.AUTH_RESPONSE && value[1] == MiBand2Service.AUTH_SEND_KEY
                    && value[2] == MiBand2Service.AUTH_SUCCESS) {
                TransactionBuilder builder = createTransactionBuilder("Sending the secret key to the band");
                builder.write(characteristic, requestAuthNumber());
                getSupport().performImmediately(builder);
            } else if (value[0] == MiBand2Service.AUTH_RESPONSE
                    && value[1] == MiBand2Service.AUTH_REQUEST_RANDOM_AUTH_NUMBER
                    && value[2] == MiBand2Service.AUTH_SUCCESS) {
                // md5??
                byte[] eValue = handleAESAuth(value, getSecretKey());
                byte[] responseValue = org.apache.commons.lang3.ArrayUtils.addAll(
                        new byte[] { MiBand2Service.AUTH_SEND_ENCRYPTED_AUTH_NUMBER, MiBand2Service.AUTH_BYTE },
                        eValue);

                TransactionBuilder builder = createTransactionBuilder(
                        "Sending the encrypted random key to the band");
                builder.write(characteristic, responseValue);
                getSupport().setCurrentTimeWithService(builder);
                getSupport().performImmediately(builder);
            } else if (value[0] == MiBand2Service.AUTH_RESPONSE
                    && value[1] == MiBand2Service.AUTH_SEND_ENCRYPTED_AUTH_NUMBER
                    && value[2] == MiBand2Service.AUTH_SUCCESS) {
                TransactionBuilder builder = createTransactionBuilder("Authenticated, now initialize phase 2");
                builder.add(new SetDeviceStateAction(getDevice(), GBDevice.State.INITIALIZING, getContext()));
                getSupport().requestDeviceInfo(builder);
                getSupport().phase2Initialize(builder);
                getSupport().setInitialized(builder);
                getSupport().performImmediately(builder);
            } else {
                return super.onCharacteristicChanged(gatt, characteristic);
            }
        } catch (Exception e) {
            GB.toast(getContext(), "Error authenticating Mi Band 2", Toast.LENGTH_LONG, GB.ERROR, e);
        }
        return true;
    } else {
        LOG.info("Unhandled characteristic changed: " + characteristicUUID);
        return super.onCharacteristicChanged(gatt, characteristic);
    }
}

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From source file:com.megster.cordova.rfduino.Peripheral.java

@Override
public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {

    super.onCharacteristicChanged(gatt, characteristic);
    if (characteristic.getUuid().equals(RECEIVE_CHARACTERISTIC_UUID)) {
        PluginResult result = new PluginResult(PluginResult.Status.OK, characteristic.getValue());
        result.setKeepCallback(true);/*from  w  w w  .j a v  a 2 s .c  om*/
        onDataCallback.sendPluginResult(result);
    }
}

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From source file:com.github.w666.ezonwatch.BluetoothLeService.java

private void broadcastUpdate(final String action, final BluetoothGattCharacteristic characteristic) {
    final Intent intent = new Intent(action);
    // For all other profiles, writes the data formatted in HEX.
    final byte[] data = characteristic.getValue();
    if (data != null && data.length > 0) {
        intent.putExtra(EXTRA_DATA, data);
    }//  www . j  av  a 2 s.  c  o m
    sendBroadcast(intent);
}

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From source file:com.orange.beaconme_sdk.ble.control.BeaconTagDeviceUpdater.java

private void onReadCharacteristic(BluetoothGattCharacteristic characteristic, BluetoothGatt gatt, int status) {
    Log.i("Updater", "onReadCharacteristic");
    UUID charUUID = characteristic.getUuid();
    for (WriteCharacteristicCommand command : commands) {
        if (command.getCharacteristicUUID().equals(charUUID)) {
            if (characteristic.getValue() == null) {
                Log.e(TAG, String.format("read characteristic %s value=%s, status=%d", characteristic.getUuid(),
                        Arrays.toString(characteristic.getValue()), status));
            } else {
                byte[] newValue;
                if (command.getSwitchState() != WriteCharacteristicCommand.SwitchState.NONE) {
                    newValue = getEnablingValueForChar(characteristic,
                            command.getSwitchState() == WriteCharacteristicCommand.SwitchState.ENABLE);

                } else {
                    newValue = command.getBytesToUpload();
                }/*from w ww.j a  v a2s . c  om*/
                if (!Arrays.equals(characteristic.getValue(), newValue)) {
                    characteristic.setValue(newValue);
                    queue(getWriteCharacteristicOperation(characteristic));
                } else {
                    doneUploadingUuid(characteristic.getUuid());
                }
            }
        }
    }
}

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

public static int decodeUInt16(final BluetoothGattCharacteristic characteristic, final int offset) {
    final byte[] data = characteristic.getValue();
    return (unsignedByteToInt(data[offset]) << 8) | unsignedByteToInt(data[offset + 1]);
}

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