Wifi Scanner: no networks found on Ubuntu

[rMazeiks]

When running the wifi scanner example on Ubuntu, it shows "no networks found" despite there being available Wifi connections according to the OS.

Steps to reproduce:

• Run Wifi scanner
• Click "Scan" and wait

Expected: A list of available Wifi connections

Actual result: "No networks found. Try scanning"

[Busyvar]

Problem experienced also on Archlinux x64.
From what i saw, wifiscanner::scan() returns an empty array, so the problem might be upstream.

[Busyvar]

After checking original implementation of wifiscanner it seems the package rely on iw for wifi scan on linux.
iw require root permission to execute.
@rMazeiks try to run the application as root, it fixed the issue on my side.

[rMazeiks]

Thanks for the heads up! Indeed, it appears to only work if run with sudo. The issue may be closed, though it would be nice to mention this limitation in the Readme.