UWP集成Cortana实现条件查询与交互响应的示例代码求助

Hey there! Let's walk through exactly how to implement that custom voice flow you're after—where Cortana triggers your app, asks for a choice between a/b, then reads a dynamic job title (not static XML content) based on the user's reply. Here's a step-by-step breakdown with code examples:

1. First, Set Up Your Voice Command Definition (VCD) #

Start by creating a VoiceCommands.xml file to define the initial trigger phrase. We won't hardcode the a/b options here because we want dynamic handling later:

<?xml version="1.0" encoding="utf-8"?>
<VoiceCommands xmlns="http://schemas.microsoft.com/voicecommands/1.2">
  <CommandSet xml:lang="en-us" Name="JobCommands">
    <CommandPrefix>Cortana</CommandPrefix>
    <Example>check the available jobs</Example>

    <Command Name="CheckAvailableJobs">
      <Example>check the available jobs</Example>
      <ListenFor>check the available jobs</ListenFor>
      <Feedback>Looking up available jobs...</Feedback>
      <Navigate Target="MainPage" />
    </Command>
  </CommandSet>
</VoiceCommands>

Don't forget to reference this file in your Package.appxmanifest under the Extensions section (look for the VoiceCommand extension type).

2. Register the Voice Commands on App Launch #

In your App.xaml.cs, add code to register the VCD when the app starts so Cortana recognizes your command:

protected override async void OnLaunched(LaunchActivatedEventArgs e)
{
    // Your existing launch code here...

    try
    {
        var voiceService = VoiceCommandService.InstalledVoiceCommandServiceForPackage("JobCommands");
        await voiceService.SetVoiceCommandDefinitionsFromFileAsync(new Uri("ms-appx:///VoiceCommands.xml"));
    }
    catch (Exception ex)
    {
        Debug.WriteLine($"Oops, failed to register voice commands: {ex.Message}");
    }
}

3. Trigger Cortana's Follow-Up Question #

When the user says "Hey Cortana check the available jobs", your app will activate. Handle this activation to kick off the multi-turn conversation:

protected override async void OnActivated(IActivatedEventArgs args)
{
    if (args is VoiceCommandActivatedEventArgs voiceArgs)
    {
        var commandResult = voiceArgs.Result;
        if (commandResult.RulePath[0] == "CheckAvailableJobs")
        {
            // Create a connection to Cortana's voice service
            var vcConnection = VoiceCommandServiceConnection.FromAppServiceTriggerDetails(
                args as AppServiceTriggerDetails);

            // Ask the user to choose a or b
            var prompt = new VoiceCommandUserMessage
            {
                DisplayMessage = "Which one, a or b?",
                SpokenMessage = "Which one, a or b?"
            };

            var response = VoiceCommandResponse.CreateResponse(prompt);
            await vcConnection.RequestDisambiguationAsync(response);

            // Set up handler for user's choice (see next step)
            vcConnection.DisambiguationReceived += async (sender, e) =>
            {
                var userChoice = e.SelectedItem;
                string jobTitle = string.Empty;

                // Replace this with your actual data fetch logic (API, local DB, etc.)
                if (userChoice.Equals("a", StringComparison.OrdinalIgnoreCase))
                {
                    jobTitle = "Senior .NET Software Engineer";
                }
                else if (userChoice.Equals("b", StringComparison.OrdinalIgnoreCase))
                {
                    jobTitle = "Mobile UX Designer";
                }

                // Tell Cortana to speak the dynamic job title
                var reply = new VoiceCommandUserMessage
                {
                    DisplayMessage = $"The job title is {jobTitle}",
                    SpokenMessage = $"The job title is {jobTitle}"
                };

                var successResponse = VoiceCommandResponse.CreateResponse(reply);
                await vcConnection.ReportSuccessAsync(successResponse);
            };
        }
    }
}

Quick Tips to Avoid Headaches #

• Double-check your Package.appxmanifest has the AppService and VoiceCommand capabilities enabled—this is a common gotcha.
• For real-world use, replace the hardcoded job titles with a call to your backend API or local data store to get live job data.
• Test with Cortana in English (US) first if you're using the example VCD, since language settings matter for voice recognition.

内容的提问来源于stack exchange，提问作者Isaack Hussein