onAdvertisement method
This method is called when the Server sends a custom advertisement message. or an unreliable broadcast message using Server.broadcast()
The message received from the device
is contained in packet
Please note that you may not be able to send a message directly to the Device received here. Messages can mostly only be sent to Devices received after an event is received from ConnectionListener.onConnected which is triggered when a Client uses Client.connectTo to initiate a connection
Implementation
void onAdvertisement(Device device, Packet packet);