I have a problem. My android code is not compatible with the iOS bluetooth advertising. I read about on the apple documentation, that the advertising was worked between iOS devices.
But I think if the iOS can read it, the android why not? Does the android devices received uuids in a byte array? And how can I parse these? Is it possible?
How can read adverting data on Android device, when iOS use this code:
CBPeripheralManager *manager = [[CBPeripheralManager alloc] initWithDelegate:self queue:nil];
NSArray *uuids = @[[CBUUID UUIDWithString:@"128bit uuudid"],
[CBUUID UUIDWithString:@"other 128bit uuudid"],
[CBUUID UUIDWithString:@"128bit uuudid"],
....];
NSDictionary *data = @[CBAdvertisementDataLocalNameKey: @"My name",
CBAdvertisementDataServiceUUIDsKey: uuids];
[manager startAdvertising:data];
I tried scan UUIDs on Android but, it read only the first uuid. How can I read the others?
I use this code for parsing UUIDs on Android, but it is not working.
public void onLeScan(BluetoothDevice device, int rssi, byte[] scanRecord) {
ParcelUuid[] uuids = device.getUuids();
List<UUID> ud = parseUuids(scanRecord);
if (ud != null) {
for (UUID u : ud) {
Timber.v("UUUUID: %s", u);
}
}
}
private static List<UUID> parseUuids(byte[] advertisedData) {
List<UUID> uuids = new ArrayList<UUID>();
ByteBuffer buffer = ByteBuffer.wrap(advertisedData).order(ByteOrder.LITTLE_ENDIAN);
while (buffer.remaining() > 2) {
byte length = buffer.get();
if (length == 0) break;
byte type = buffer.get();
switch (type) {
case 0x02: // Partial list of 16-bit UUIDs
case 0x03: // Complete list of 16-bit UUIDs
while (length >= 2) {
uuids.add(UUID.fromString(String.format(
"%08x-0000-1000-8000-00805f9b34fb", buffer.getShort())));
length -= 2;
}
break;
case 0x06: // Partial list of 128-bit UUIDs
case 0x07: // Complete list of 128-bit UUIDs
case 0x15:
while (length >= 16) {
long lsb = buffer.getLong();
long msb = buffer.getLong();
uuids.add(new UUID(msb, lsb));
length -= 16;
}
break;
default:
buffer.position(buffer.position() + length - 1);
break;
}
}
return uuids;
}