Feature request: access to advertised data

While debugging my BLE Android app, I felt the need to access advertised data (to check that my BLE server app was advertising correctly). Unless I’m wrong, there’s not much about this in the library.

For example, getServices() allows to get the list of services available from a connected peripheral, but it would be nice to also have a way to get the list of advertised/exposed services from a not-connected peripheral (returned by onDiscoveredPeripheral()).

[weliem]

The advertised data is also available and encapsulated by the ScanResult object. You get this along with the peripheral object:

onDiscoveredPeripheral(@NotNull BluetoothPeripheral peripheral, @NotNull ScanResult scanResult)

The ScanResult is a plain Android object, see ScanResult

The information about which services are advertised is in the ScanRecord: List<ParcelUuid> serviceUUIDs = scanResult.getScanRecord().getServiceUuids();

[steph643]

But since that is rather obvious…

My point exactly: it sounds obvious at first but it’s not, as getServices() could have returned the advertised services of a non-connected peripheral.

After being connected, a connection might drop any time. So instead of throwing exceptions for totally normal situations I decided to handle it gracefully. Otherwise your code would be full of try/catch statements…

“Not handling” and “handling gracefully” are two different things. The user is informed of a connection drop through onPeripheralDisconnected(), and I think it should be his choice to manage the exceptions or not.