Bluetooth device listing = null

Hello friends, does anyone know why when I make the list of Bluetooth devices a large number of devices named as NULL appear?

Hi Diego,
I've just run into this problem today with my App.
Did you manage to solve the problem?

Hello dear, I haven't solved it yet.

Hi Diego,
I found a way around this problem and it worked for me. After populating the device list, I go through the list (from end to start and remove each element that contains "null".

Hello Shabi, this looks very good, I will try it.
thank you so much!