// onLeScan() method of BluetoothAdapter.LeScanCallback interface.
public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord)
{
    // Parse the payload of the advertising packet.
    List<ADStructure> structures =
        ADPayloadParser.getInstance().parse(scanRecord);

// For each AD structure contained in the advertising packet.
for (ADStructure structure : structures)
{
    // If the ADStructure instance can be cast to IBeacon.
    if (structure instanceof IBeacon)
    {
        // An iBeacon was found.
        IBeacon iBeacon = (IBeacon)structure;
        ......
    }

IBeacon iBeacon = (IBeacon)structure;

// (1) Proximity UUID
UUID uuid = iBeacon.getUUID();

// (2) Major number
int major = iBeacon.getMajor();

// (3) Minor number
int minor = iBeacon.getMinor();

// (4) Tx Power
int power = iBeacon.getPower();

// Eddystone UID
EddystoneUID es = (EddystoneUID)structure;

// (1) Calibrated Tx power at 0 m.
int power = es.getTxPower();

// (2) 10-byte Namespace ID
byte[] namespaceId = es.getNamespaceId();
String namespaceIdAsString = es.getNamespaceIdAsString();

// (3) 6-byte Instance ID
byte[] instanceId = es.getInstanceId();
String instanceIdAsString = es.getInstanceIdAsString();

// (4) 16-byte Beacon ID
byte[] beaconId = es.getBeaconId();
String beaconIdAsString = es.getBeaconIdAsString();

// Eddystone URL
EddystoneURL es = (EddystoneURL)structure;

// (1) Calibrated Tx power at 0 m.
int power = es.getTxPower();

// (2) URL
URL url = es.getURL();

// Eddystone TLM
EddystoneTLM es = (EddystoneTLM)structure;

// (1) TLM Version
int version = es.getTLMVersion();

// (2) Battery Voltage
int voltage = es.getBatteryVoltage();

// (3) Beacon Temperature
float temperature = es.getBeaconTemperature();

// (4) Advertisement count since power-on or reboot.
long count = es.getAdvertisementCount();

// (5) Elapsed time in milliseconds since power-on or reboot.
long elapsed = es.getElapsedTime();

// Eddystone EID
EddystoneEID es = (EddystoneEID)structure;

// (1) Calibrated Tx power at 0 m.
int power = es.getTxPower();

// (2) 8-byte EID
byte[] eid = es.getEID();
String eidAsString = es.getEIDAsString();

Flags flags = (Flags)structure;

// (1) LE Limited Discoverable Mode
boolean limited = flags.isLimitedDiscoverable();

// (2) LE General Discoverable Mode
boolean general = flags.isGeneralDiscoverable();

// (3) (inverted) BR/EDR Not Supported
boolean legacySupported = flags.isLegacySupported();

// (4) Simultaneous LE and BR/EDR to Same Device Capable (Controller)
boolean controllerSimultaneity = flags.isControllerSimultaneitySupported();

// (5) Simultaneous LE and BR/EDR to Same Device Capable (Host)
boolean hostSimultaneity = flags.isHostSimultaneitySupported();

Ucode ucode = (Ucode)structure;

// (1) Version
int version = ucode.getVersion();

// (2) Ucode (32 upper-case hex letters)
String ucode = ucode.getUcode();

// (3) Status
int status = ucode.getStatus();

// (4) The state of the battery
boolean low = ucode.isBatteryLow();

// (5) Transmission interval
int interval = ucode.getInterval();

// (6) Transmission power
int power = ucode.getPower();

// (7) Transmission count
int count = ucode.getCount();

// onConnectionStateChange() method of BluetoothGattCallback class.
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState)
{
    Log.d(TAG, "status = " + stringifyGattStatus(status));

    ......
}

private static String stringifyGattStatus(int status)
{
    GattStatusCode code = GattStatusCode.getByValue(status);

    if (code != null)
    {
        return code.name();
    }
    else
    {
        return String.format("UNKNOWN (%d)", status);
    }
}

class UcodeBuilder implements ADManufacturerSpecificBuilder
{
    @Override
    public ADManufacturerSpecific build(int length, int type, byte[] data, int companyId)
    {
        return Ucode.create(length, type, data, companyId);
    }
}

// Register UcodeBuilder for the company ID 0x019A (T-Engine Forum).
// (The equivalent is done in the constructor of ADPayloadParser, though.)
ADPayloadParser.getInstance()
    .registerManufacturerSpecificBuilder(0x019A, new UcodeBuilder());

List<ADStructure> structures
    = ADPayloadParser.getInstance().parse(payload);

for (ADStructure structure : structures)
{
    // If the AD structure can be cast to Ucode.
    if (structure instanceof Ucode)
    {
        Ucode ucode = (Ucode)structure;
    }
}