/// <summary>
/// Callback method for starting connection
/// </summary>
async void OnConnectionStarted()
{
// Bail if the user has already started a connection
if (IsAttemptingConnection())
{
return;
}
try
{
// Connect to IP
bool success = connection.Connect(IPAddress);
if (!success)
{
if (!QTMNetworkConnection.QTMVersionSupported)
{
// QTM is not supported
userDialogs.Alert("Please make sure that you are connecting to a Windows PC with " +
"a Qualisys Track Manager software version of at least 2.16", "Attention", "Dismiss");
}
else
{
// There was an error with the connection
notificationService.Show("Attention", "There was a connection error, please check IP address");
}
return;
}
else if (connection.HasPassword())
{
// NOTE: A new propmt configuration has to be created everytime we run it
// if we do not do this the acr library will add an action to it and since
// it is async it does not expect that and will thus throw an error
PromptResult result = await userDialogs
.PromptAsync(
new PromptConfig()
.SetTitle("Please enter password (blank for slave mode)")
.SetOkText("Connect"));
if (!result.Ok)
{
return;
}
// Connect to host
connection.Connect(IPAddress, result.Text);
if (!connection.TakeControl() && result.Text != "")
{
ToastAction toastAction = new ToastAction().SetText("Retry").SetAction(() => OnConnectionStarted());
ToastConfig toastConfig = new ToastConfig("Incorrect Password")
.SetAction(toastAction);
userDialogs.Toast(toastConfig);
return;
}
}
// Send connection instance to settings service
if (!SettingsService.Initialize())
{
// There was a problem when attempting to establish the connection
userDialogs.Alert("There was a communication mismatch with QTM, please make sure you are running the" +
" latest version of this application and that you have the QTM version specified in" +
" the requirements", "Error", "Dismiss");
connection.Disconnect();
return;
}
// Show loading screen whilst connecting
// This loading screen is disabled in the CameraPageViewModel constructor
Task.Run(() => userDialogs.ShowLoading("Establishing connection..."));
// Fetch information from system and fill structures accordingly
CameraManager.GenerateCameras();
// Connection was successfull
// Navigate to camera page
NavigationParameters navigationParams = new NavigationParameters();
navigationParams.Add(Helpers.Constants.NAVIGATION_DEMO_MODE_STRING, false);
Device.BeginInvokeOnMainThread(() => navigationService.NavigateAsync("CameraPage", navigationParams));
}
catch (Exception e)
{
Debug.WriteLine(e);
notificationService.Show("Attention", "Please make sure that QTM is up and running and that the cameras are plugged in");
Task.Run(() => userDialogs.HideLoading());
return;
}
}
public void StopListening()
{
networkConnection.Disconnect();
}