BLE obtain uuid encoded in advertising packet

Question

Im trying to get UUID of ble device. I was following android developers guide and so far I can get only device name and rssi. Im trying to get Uuid of the device that comes

Answer 1

As mentioned in comments, a BLE device doesn't really have a specific UUID (but rather many for included services). However, some schemes such as iBeacon encode a unique identifier in a manufacturer-specific data record in an advertising packet.

Here's a quite inefficient but conceptually simple way to convert the entire scanRecord to a hex string representation for debug printing:

String msg = "payload = ";
for (byte b : scanRecord)
  msg += String.format("%02x ", b);

Note that this will include both the actual advertising packet and a number of meaningless trailing bytes, which should be ignored after parsing the structure (length field) contained in the advertising packet itself.