My final destination is to get all BSSIDs of the current connected WIFI network in Android.

If I’m right, Android does not support this feature, like Windows do with WlanGetNetworkBssList.

Because of this, I have to get a list of all available WIFI networks, and use the BDDIDs of them, with the same SSID (user readable WIFI name).

I tries this with:

_connectivityManager = App.Context.GetSystemService(Context.ConnectivityService) as ConnectivityManager;

var requestBuilder = new NetworkRequest.Builder();
requestBuilder.SetIncludeOtherUidNetworks(true);
requestBuilder.AddTransportType(Android.Net.TransportType.Wifi);

_connectivityManager.RegisterNetworkCallback(requestBuilder.Build(), new MyNetworkCallback());

and with:

private class MyNetworkCallback() : ConnectivityManager.NetworkCallback((int)NetworkCallbackFlags.IncludeLocationInfo)
{
    ...

    public void OnCapabilitiesChanged(Android.Net.Network network, NetworkCapabilities networkCapabilities)
    {
        if (networkCapabilities.TransportInfo is WifiInfo wifiInfo
            && wifiInfo.SupplicantState == SupplicantState.Completed
            && wifiInfo.SSID == _mySSID)
            _myBssids.Add(wifiInfo.BSSID);
    }

    ...
}

I granted the permissions ACCESS_FINE_LOCATION, ACCESS_NETWORK_STATE, ACCESS_WIFI_STATE, CHANGE_NETWORK_STATE and CHANGE_WIFI_STATE.

Unfortunately, this code only tells me the BSSID of the current connected network, but I would like to get it of all available networks.