void FindNetworks()
{
Dictionary <string, List <Tuple <Wlan.WlanAvailableNetwork, WlanClient.WlanInterface> > > hashedNetworks = new Dictionary <string, List <Tuple <Wlan.WlanAvailableNetwork, WlanClient.WlanInterface> > >();
foreach (WlanClient.WlanInterface wlanIface in WlanClient.Instance.Interfaces)
{
try
{
Wlan.WlanAvailableNetwork[] networks = wlanIface.GetAvailableNetworkList(0);
foreach (Wlan.WlanAvailableNetwork network in networks)
{
string ssid = Helper.GetStringForSSID(network.dot11Ssid);
if (!string.IsNullOrEmpty(ssid))
{
List <Tuple <Wlan.WlanAvailableNetwork, WlanClient.WlanInterface> > networksForSSID;
if (!hashedNetworks.TryGetValue(ssid, out networksForSSID))
{
hashedNetworks[ssid] = networksForSSID = new List <Tuple <Wlan.WlanAvailableNetwork, WlanClient.WlanInterface> >();
}
networksForSSID.Add(new Tuple <Wlan.WlanAvailableNetwork, WlanClient.WlanInterface>(network, wlanIface));
}
}
}
catch
{
// the network interface might be disabled - wrapper throws an exception in that case when getting the available networks
}
}
Networks.Clear();
foreach (var ssidNetwork in hashedNetworks.OrderByDescending(hn => hn.Value.Max(n => n.Item1.wlanSignalQuality)))
{
var networkInfo = ssidNetwork.Value.OrderByDescending(n => n.Item1.wlanSignalQuality).First();
var network = networkInfo.Item1;
if (network.networkConnectable)
{
string readableSSID = Helper.GetStringForSSID(network.dot11Ssid);
if (string.IsNullOrWhiteSpace(readableSSID))
{
readableSSID = "No SSID";
}
ListItem item = new ListItem(Consts.KEY_NAME, readableSSID, false);
item.Selected = (network.flags & Wlan.WlanAvailableNetworkFlags.Connected) == Wlan.WlanAvailableNetworkFlags.Connected;
item.AdditionalProperties["SignalStrength"] = network.wlanSignalQuality / 100.0f;
item.AdditionalProperties["Secure"] = network.securityEnabled;
item.AdditionalProperties["HasProfile"] = (network.flags & Wlan.WlanAvailableNetworkFlags.HasProfile) == Wlan.WlanAvailableNetworkFlags.HasProfile;
item.AdditionalProperties["Network"] = network;
item.AdditionalProperties["Interface"] = networkInfo.Item2;
Networks.Add(item);
}
}
Networks.FireChange();
}
public async Task ScanAsync()
{
if (WiFiAdapter != null)
{
await WiFiAdapter.ScanAsync();
ScanTimestamp = WiFiAdapter.NetworkReport.Timestamp.ToString("MM-dd hh:mm:ss");
Networks.Clear();
foreach (var n in WiFiAdapter.NetworkReport.AvailableNetworks)
{
Networks.Add(n);
}
}
else
{
throw new InvalidOperationException("Cannot scan WiFi signal without WiFi adapter.");
}
}