How to Check if an Paired Bluetooth device is a Printer or a Scanner (Android)

Question

I hope can help me, I am developing an Android App, that require to connect with Bluetooth devices, like Scanner and Printer, currently I can list all Paired devices, but i

Answer 1

In short,

Yes you can. You can do this by using the UUID of the device. If you know the UUID of a device you can match them up from the reported UUID and know which paired device is what.

Something like this:

BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();

Method getUuidsMethod = BluetoothAdapter.class.getDeclaredMethod("getUuids", null);

ParcelUuid[] uuids = (ParcelUuid[]) getUuidsMethod.invoke(adapter, null);

Now simply compare the retrieved UUID to the devices known UUID( online or on the box).

If they are a match you know what device it is.

Note: most common UUID (scanners, printers, Mice) have the generic UUID 0001101-0000-1000-8000-00805F9B34FB

Read about the getUUID() method, paracable method , Method java class and finally Java.util.UUID.