/// <summary>
/// Set the UI based on the current state of the speech state machine
/// </summary>
/// <param name="state"></param>
private void SpeechSetUIState(NuanceHelper.SpeechState state)
{
switch (state)
{
case NuanceHelper.SpeechState.Initializing:
//parent.SpeechPopup.Title = "initializing...";
parent.SpeechTextLabel.Text = "initializing...";
break;
case NuanceHelper.SpeechState.Listening:
//parent.SpeechPopup.Title = "listening...";
parent.SpeechTextLabel.Text = "listening...";
break;
case NuanceHelper.SpeechState.Recognizing:
//parent.SpeechPopup.Title = "recognizing...";
//parent.ActivityIndicator.Hidden = false;
parent.SpeechTextLabel.Text = "recognizing...";
break;
case NuanceHelper.SpeechState.Finished:
//parent.SpeechPopup.Title = "";
parent.SpeechTextLabel.Text = "";
break;
}
// resize and recenter the label
parent.SpeechTextLabel.SizeToFit();
parent.SpeechTextLabel.Center = new PointF(parent.View.Center.X, parent.ActivityIndicator.Center.Y);
}
public void SpeechPopup_SpeechStateCallback(NuanceHelper.SpeechState state, string message)
{
speechState = state;
SpeechSetUIState(speechState);
// store debug / timing info
TimeSpan ts = DateTime.Now - speechStart;
string stateString = NuanceHelper.SpeechStateString(state);
string traceString = String.Format("New state: {0}; Time: {1}; Message: {2}", stateString, ts.TotalSeconds, message);
TraceHelper.AddMessage(traceString);
speechDebugString += traceString + "\n";
}
public void SpeechPopup_SpeechToTextCallback(string textString)
{
parent.BeginInvokeOnMainThread(() =>
{
// set the UI state to finished state
speechState = NuanceHelper.SpeechState.Finished;
SpeechSetUIState(speechState);
// store debug / timing info
TimeSpan ts = DateTime.Now - speechStart;
string stateString = NuanceHelper.SpeechStateString(speechState);
string traceString = String.Format("New state: {0}; Time: {1}; Message: {2}", stateString, ts.TotalSeconds, textString);
TraceHelper.AddMessage(traceString);
speechDebugString += traceString + "\n";
// strip any timing / debug info
textString = textString == null ? "" : textString;
string[] words = textString.Split(' ');
if (words[words.Length - 1] == "seconds")
{
textString = "";
// strip off last two words - "a.b seconds"
for (int i = 0; i < words.Length - 2; i++)
{
textString += words[i];
textString += " ";
}
textString = textString.Trim();
}
// set the speech label text as well as the popup text
//SpeechLabelText = textString == null ? "recognition failed" : String.Format("'{0}'", textString);
parent.Name.Value = textString;
// dismiss the SpeechPopup
parent.SpeechPopup.DismissWithClickedButtonIndex(1, true);
#if DEBUG && KILL
MessageBox.Show(speechDebugString);
#endif
});
}
private void SpeechPopup_SpeakButton_Click(object sender, EventArgs e)
{
TimeSpan ts;
string stateString;
string traceString;
switch (speechState)
{
case NuanceHelper.SpeechState.Initializing:
// can't happen since the button isn't enabled
#if DEBUG
//MessageBox.Show("Invalid state SpeechState.Initializing reached");
#endif
//break;
case NuanceHelper.SpeechState.Listening:
// done button tapped
// set the UI state to recognizing state
speechState = NuanceHelper.SpeechState.Recognizing;
SpeechSetUIState(speechState);
// store debug / timing info
ts = DateTime.Now - speechStart;
stateString = NuanceHelper.SpeechStateString(speechState);
traceString = String.Format("New state: {0}; Time: {1}; Message: {2}", stateString, ts.TotalSeconds, "Stopping mic");
TraceHelper.AddMessage(traceString);
speechDebugString += traceString + "\n";
// stop listening and get the recognized text from the speech service
NuanceHelper.Stop();
// put the SpeechPopup back up to show the recognition phase
parent.SetupSpeechPopup("recognizing...");
parent.SpeechPopup.ShowFromTabBar(((UITabBarController)parent.ParentViewController).TabBar);
break;
case NuanceHelper.SpeechState.Recognizing:
// clicking done while recognizing means cancel the operation
parent.SpeechPopup.DismissWithClickedButtonIndex(1, true);
break;
case NuanceHelper.SpeechState.Finished:
// should never happen
parent.SpeechPopup.DismissWithClickedButtonIndex(1, true);
break;
}
}
public void SpeechPopup_SpeechStateCallback(NuanceHelper.SpeechState state, string message)
{
speechState = state;
SpeechSetUIState(speechState);
// store debug / timing info
TimeSpan ts = DateTime.Now - speechStart;
string stateString = NuanceHelper.SpeechStateString(state);
string traceString = String.Format("New state: {0}; Time: {1}; Message: {2}", stateString, ts.TotalSeconds, message);
TraceHelper.AddMessage(traceString);
speechDebugString += traceString + "\n";
}
