UWP Cortana 未注册应用命令

本文关键字：应用 命令 注册 Cortana UWP | 更新日期: 2023-09-27 18:36:53

我正在尝试将 Cortana 实现到我的应用，因此当用户说"你好小娜，在测试应用中阅读第一步"时，应用将从列表框中读取第一个元素。我遇到的问题是，当我这样说时，应用程序只是打开一个带有我说的句子的必应网页。

<?xml version="1.0" encoding="utf-8" ?>
<VoiceCommands xmlns="http://schemas.microsoft.com/voicecommands/1.1">
<CommandSet xml:lang="en-US" Name="CommandSet_en-US">
<CommandPrefix> Test App</CommandPrefix>
<Example> read step one </Example>
<Command Name="step">
  <Example> read step one </Example>
  <ListenFor> read step {number} </ListenFor>
  <Feedback> Reading Instruction </Feedback>
  <Navigate Target="Page1"/>
</Command>
<PhraseList Label= "number">
  <Item> one </Item>
  <Item> two </Item>
</PhraseList>
</CommandSet>  
</VoiceCommands>

在 app.xaml.cs：

protected async override void OnLaunched(LaunchActivatedEventArgs e)
   //code
        Window.Current.Activate();
        }
            try
            {
                StorageFile vcdStorageFile = await Package.Current.InstalledLocation.GetFileAsync( @"CortanaCommands.xml");
                await VoiceCommandDefinitionManager.InstallCommandDefinitionsFromStorageFileAsync(vcdStorageFile);
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine("There was an error Registering the Voice Command Definitions", ex);
            }
  }

  protected override void OnActivated(IActivatedEventArgs e)
    {
        if (e.Kind != Windows.ApplicationModel.Activation.ActivationKind.VoiceCommand)
        {
            return;
        }
        var commandArgs = e as Windows.ApplicationModel.Activation.VoiceCommandActivatedEventArgs;
        var speechRecognitionResult = commandArgs.Result;
        string voiceCommandName = speechRecognitionResult.RulePath[0];
        string textSpoken = speechRecognitionResult.Text;
        string spokenStep = "";
        try
        {
            spokenStep = speechRecognitionResult.SemanticInterpretation.Properties["number"][0];
        }
        catch
        {
        }
        Frame rootFrame = Window.Current.Content as Frame;
        MainPage page = rootFrame.Content as MainPage;
        if (page == null)
        {
            return;
        }

            switch (spokenStep)
            {
                case "one":                     
                    page.Count1 = 0;
                    break;
                default:
                    //no match
                    break;
            }
        switch (voiceCommandName)
        {
            case "step":
                page.StepOne();
                break;
            default:
                break;
        }
    }

UWP Cortana 未注册应用命令

我遇到了你的问题，你的StepOne方法是这样的：

public void StepOne(int count1) { readText(SteplistBox.Items[count1].ToString()); }
此方法

中有一个参数，但你像这样调用此方法：page.StepOne();此方法中没有参数。请注意，StepOne()方法和StepOne(int i)是两种不同的方法。

这个问题可能是一个错字，但我假设你想做的是使用 Cortana 打开你的应用程序并根据语音命令从MainPage读取ListBox项目。加上我的评论中可能存在的问题，在这里我为您写了一个示例：

App.xaml.cs 代码：

private string count = null;
protected override void OnActivated(IActivatedEventArgs args)
{
    if (args.Kind == ActivationKind.VoiceCommand)
    {
        VoiceCommandActivatedEventArgs vargs = (VoiceCommandActivatedEventArgs)args;
        SpeechRecognitionResult res = vargs.Result;
        string cmdName = res.RulePath[0];
        if (cmdName == "step")
        {
            var interpretation = res.SemanticInterpretation;
            string item = interpretation.Properties["number"].FirstOrDefault();
            if (!string.IsNullOrEmpty(item))
            {
                Frame rootFrame = Window.Current.Content as Frame;
                if (rootFrame == null)
                {
                    rootFrame = new Frame();
                    Window.Current.Content = rootFrame;
                }
                switch (item)
                {
                    case "one":
                        count = "one";
                        break;
                    case "two":
                        count = "two";
                        break;
                    default:
                        count = null;
                        break;
                }
                rootFrame.Navigate(typeof(MainPage), count);
            }
        }
    }
    count = null;
    Window.Current.Activate();
}

主页.cs代码：

public void StepOne(int i)
{
    readText(SteplistBox.Items[i].ToString());
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
    if (e.Parameter != null)
    {
        if ((string)e.Parameter == "one")
        {
            StepOne(0);
        }
        else if ((string)e.Parameter == "two")
        {
            StepOne(1);
        }
    }
}

更新

如果不想使用主页OnNavigatedTo方法和e.Patameter，可以更改 App.xaml 中的代码.cs如下所示：

protected override void OnActivated(IActivatedEventArgs args)
{
 if (args.Kind == ActivationKind.VoiceCommand)
 {
     VoiceCommandActivatedEventArgs vargs = (VoiceCommandActivatedEventArgs)args;
     SpeechRecognitionResult res = vargs.Result;
     string cmdName = res.RulePath[0];
     if (cmdName == "step")
     {
         var interpretation = res.SemanticInterpretation;
         string item = interpretation.Properties["number"].FirstOrDefault();
         if (!string.IsNullOrEmpty(item))
         {
             Frame rootFrame = Window.Current.Content as Frame;
             if (rootFrame == null)
             {
                 rootFrame = new Frame();
                 Window.Current.Content = rootFrame;
             }
             rootFrame.Navigate(typeof(MainPage));
             MainPage page = rootFrame.Content as MainPage;
             switch (item)
             {
                 case "one":
                     page.StepOne(0);
                     break;
                 case "two":
                     page.StepOne(1);
                     break;
                 default:
                     break;
             }
         }
     }
 }
 Window.Current.Activate();
}

并将StepOne(int i)方法保留在主页中.cs如下所示：

public void StepOne(int i)
{
    readText(SteplistBox.Items[i].ToString());
}
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