public MainPage()
{
this.InitializeComponent();
var windowsSpeechRecognizer = new WindowsMediaSpeechRecognizer();
// Create the client. By default, it will poll the REST endpoint provided by the direct line, but optionally, we can give it a websocket implementation to use
_botClient = new Microsoft.Bot.Client.BotClient(BotConnection.DirectLineSecret, BotConnection.ApplicationName, new Microsoft.Bot.Client.DirectLine.WebSocketConnection())
{
// Use the speech synthesizer implementation in the WinRT Windows.Media.SpeechSynthesis namespace
SpeechSynthesizer = new WindowsMediaSpeechSynthesizer(),
// Use the Cognitive Services Speech-To-Text API, with speech priming support, as the speech recognizer
#error Please provide a Bing Speech API key, or replace this line with "SpeechRecognizer = windowsSpeechRecognizer,"
SpeechRecognizer = new CognitiveServicesSpeechRecognizer(null),
// Give us the ability to trigger speech recognition on keywords
// The WindowsMediaSpeechRecognizer can also be used as the primary SpeechRecognizer, instead of CognitiveServicesSpeechRecognizer (above)
// for a free solution.
TriggerRecognizer = windowsSpeechRecognizer
};
// Attach to the callbacks the client provides for observing the state of the bot
// This will be called every time the bot sends down an activity
_botClient.ConversationUpdated += OnConversationUpdated;
// Speech-related events
_botClient.SpeechRecognitionStarted += OnSpeechRecognitionStarted;
_botClient.IntermediateSpeechRecognitionResultReceived += OnIntermediateSpeechRecognitionResultReceived;
_botClient.SpeechRecognitionEnded += OnSpeechRecognitionEnded;
_botClient.FinalSpeechRecognitionResultReceived += OnFinalSpeechRecognitionResultReceived;
_botClient.SpeechSynthesisEnded += OnSpeechSynthesisEnded;
// Set triggers, so that, when the user says "listen" or "what is" the bot client will start speech recognition
_botClient.SetStartSpeechRecognitionTriggers(new string[] { "listen", "trivia bot" });
_countdownTimer.PropertyChanged += UpdateCountdown;
// Kick off the conversation
_startConversationTask = _botClient.StartConversation();
}
/// <summary>
/// Invoked when the application is launched normally by the end user. Other entry points
/// will be used such as when the application is launched to open a specific file.
/// </summary>
/// <param name="e">Details about the launch request and process.</param>
protected async override void OnLaunched(LaunchActivatedEventArgs e)
{
Frame rootFrame = Window.Current.Content as Frame;
// Do not repeat app initialization when the Window already has content,
// just ensure that the window is active
if (rootFrame == null)
{
// Create a Frame to act as the navigation context and navigate to the first page
rootFrame = new Frame();
rootFrame.NavigationFailed += OnNavigationFailed;
if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)
{
//TODO: Load state from previously suspended application
}
// Place the frame in the current Window
Window.Current.Content = rootFrame;
}
if (e.PrelaunchActivated == false)
{
if (rootFrame.Content == null)
{
// When the navigation stack isn't restored navigate to the first page,
// configuring the new page by passing required information as a navigation
// parameter
rootFrame.Navigate(typeof(MainPage), e.Arguments);
}
// Ensure the current window is active
Window.Current.Activate();
if (VoiceCommandTrigger.SpeechRecognizer is null)
{
VoiceCommandTrigger.SpeechRecognizer = await WindowsMediaSpeechRecognizer.CreateAsync(Window.Current);
}
}
}
