private void OnConnectionStateChanged(object sender, NetworkAccess e)
{
Console.WriteLine("network state" + e);
switch (e)
{
case NetworkAccess.Internet:
buttonReceiveMessage.Visibility = ViewStates.Visible;
buttonWifiScanner.Visibility = ViewStates.Invisible;
connectButton.Visibility = ViewStates.Invisible;
try
{
UnregisterReceiver(wifiReceiver);
wifiReceiver = null;
}
catch (IllegalArgumentException ex)
{
Console.WriteLine("Most like receiver was null" + ex.Message);
}
break;
default:
buttonReceiveMessage.Visibility = ViewStates.Invisible;
buttonWifiScanner.Visibility = ViewStates.Visible;
connectButton.Visibility = ViewStates.Invisible;
break;
}
}
public void OnAvailableWifiButtonClick(object sender, System.EventArgs e)
{
if (!Utils.HasPermission(ApplicationContext, Utils.ePermission.WifiPermission))
{
Toast.MakeText(ApplicationContext, "Application requires permission to Wi-Fi.", ToastLength.Long).Show();
RequestPermissions(Utils.RequiredWifiPermissions, 0);
}
else
{
if (!wifiManager.IsWifiEnabled)
{
Toast.MakeText(ApplicationContext, "Turning WiFi ON...", ToastLength.Long).Show();
wifiManager.SetWifiEnabled(true);
}
if (!Utils.HasPermission(ApplicationContext, Utils.ePermission.LocationPermission))
{
var GetPermissions = Utils.GetPermissions();
}
else
{
if (wifiReceiver == null)
{
wifiReceiver = new WifiReceiver(wifiManager, wifiList, ApplicationContext, passwordText, connectButton);
}
textMessage.Visibility = ViewStates.Invisible;
Toast.MakeText(ApplicationContext, "Searching for Wi-fi...", ToastLength.Long).Show();
RegisterReceiver(wifiReceiver, new IntentFilter(WifiManager.ScanResultsAvailableAction));
wifiManager.StartScan();
}
}
}
void AttachCallbacksAndGetIDs()
{
passwordText = FindViewById <EditText>(Resource.Id.passwordText);
connectButton = FindViewById <Button>(Resource.Id.wifiConnect);
textMessage = FindViewById <TextView>(Resource.Id.message);
wifiList = FindViewById <ListView>(Resource.Id.wifiList);
buttonWifiScanner = FindViewById <Button>(Resource.Id.scanBtn);
buttonReceiveMessage = FindViewById <Button>(Resource.Id.ReceiveMessageButton);
navigation = FindViewById <BottomNavigationView>(Resource.Id.navigation);
wifiManager = (WifiManager)ApplicationContext.GetSystemService(Context.WifiService);
wifiReceiver = new WifiReceiver(wifiManager, wifiList, ApplicationContext, passwordText, connectButton);
wifiReceiver.StateChange += OnConnectionStateChanged;
buttonWifiScanner.Click += OnAvailableWifiButtonClick;
buttonReceiveMessage.Click += OnStartListeningButtonClick;
}
void DettachCallbacks()
{
if (buttonWifiScanner != null)
{
buttonWifiScanner.Click -= OnAvailableWifiButtonClick;
}
if (buttonReceiveMessage != null)
{
buttonReceiveMessage.Click -= OnStartListeningButtonClick;
}
if (wifiReceiver != null)
{
wifiReceiver.StateChange -= OnConnectionStateChanged;
}
try
{
UnregisterReceiver(wifiReceiver);
wifiReceiver = null;
}
catch (IllegalArgumentException ex)
{
Console.WriteLine("Most likely receiver was null" + ex.Message);
}
}
