/// <summary> Get existing matching network </summary>
private static WifiConfiguration GetConfiguredNetwork(WifiManager wifiManager, Ssid ssid)
{
var existingNetwork = wifiManager.ConfiguredNetworks
.FirstOrDefault(x => x.Ssid == ssid.Quoted);
Logger.Verbose(existingNetwork != null
? $"Found existing network {ssid}"
: $"Existing network {ssid} not found");
if (existingNetwork == null)
throw new InvalidOperationException($"Network {ssid} not configured");
return existingNetwork;
}
public static async Task<ConnectionResult> ConnectAsync(Context context, Ssid ssid, TimeSpan checkInterval, TimeSpan timeout)
{
Logger.Verbose("WifiConnector.Connecting");
var wifiManager = context.GetSystemService(Context.WifiService).JavaCast<WifiManager>();
EnsureWifiEnabled(wifiManager);
if (IsConnectedToNetwork(wifiManager, ssid))
{
Logger.Info($"Network {ssid} already connected");
return ConnectionResult.AlreadyConnected;
}
var network = GetConfiguredNetwork(wifiManager, ssid);
EnsureDifferentNetworksNotActive(wifiManager, network);
EnsureNetworkReachable(wifiManager, ssid);
ActivateNetwork(wifiManager, network);
Reconnect(wifiManager);
Logger.Verbose($"Connection to network {ssid} requested");
var result = await WaitUntilConnectedAsync(wifiManager, network, checkInterval, timeout);
Logger.Info(result == ConnectionResult.Connected
? $"Connected to {ssid.Quoted}"
: $"Not yet connected to {ssid.Quoted}. Try increase a connection timeout");
return result;
}
private async void OnButtonClick(object sender, EventArgs e)
{
if (_button.Text == GetString(Resource.String.Settings))
StartActivity(typeof(SettingsActivity));
else
{
if (_isBusy)
{
ShowToast(GetString(Resource.String.Busy));
return;
}
try
{
_isBusy = true;
_button.Text = GetString(Resource.String.Busy);
Logger.Verbose("Connecting");
var settings = _settings;
var ssid = new Ssid(settings.ConnectionSettings.Ssid);
await WifiConnector.ConnectAsync(this, ssid,
TimeSpan.FromMilliseconds(settings.OtherSettings.ConnectCheckInterval),
TimeSpan.FromMilliseconds(settings.OtherSettings.ConnectTimeout));
await CiscoWebAuthManager.LoginAsync(settings.LoginPageSettings, settings.AuthSettings);
if (settings.OtherSettings.ToastLevel != ToastLevel.None)
ShowToast("Done");
OpenWebBrowserIfRequired(settings);
}
catch (Exception ex)
{
Logger.Error(ex.Message);
}
finally
{
_isBusy = false;
UpdateActivityState();
}
}
}
private static void EnsureNetworkReachable(WifiManager wifiManager, Ssid ssid)
{
if (wifiManager.ScanResults.All(x => x.Ssid != ssid.Original))
throw new InvalidOperationException($"Network {ssid} is unreachable");
}
private static bool IsConnectedToNetwork(WifiManager wifiManager, Ssid ssid)
{
return wifiManager.IsWifiEnabled
&& wifiManager.ConnectionInfo != null
&& wifiManager.ConnectionInfo.SSID == ssid.Quoted;
}