But it can not be that there is only this way.
If the app works correctly in the emulator (same as VirtualBox) you can connect to his virtual. network adapter using WireShark and thus to listen to a stream from the virtual world. car (to get there traffic application). https://wiki.wireshark.org/CaptureSetup/Loopback
and this, too: https://superuser.com/questions/298582/wireshark-c...
Of the options is more difficult... buy MikroTik, enable there is a sniffer on sniffer to plant WireShark to listen to traffic coming through the router... profit.