UWP柯塔娜不登記應用命令

Question

我想實現柯塔娜到我的應用程序，所以當用戶說「嘿柯塔娜，在測試應用程式閱讀一步一個」應用程序將讀取一個列表框的第一個元素。我遇到的問題是，當我說這個時，應用程序只是用我說的句子打開一個bing網頁。

<?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; 
     } 
    } 

Answer 1

我收到了你的問題，你的StepOne方法是這樣的：

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

有這個方法的參數，但你像這樣調用這個方法：page.StepOne();這個方法沒有參數。請注意，StepOne()方法和StepOne(int i)是兩種不同的方法。

可能這個問題是一個錯字，但我認爲你想要做的是使用cortana打開你的應用程序並根據語音命令從MainPage中讀取ListBox的項目。加上我的意見可能存在的問題，在這裏我爲你寫的例子：

App.xaml.cs代碼：

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(); 
} 

MainPage.cs代碼：

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

如果你不想使用網主頁的OnNavigatedTo方法和e.Patameter，您可以更改App.xaml.cs L代碼IKE在此：

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(); 
} 

而且保持StepOne(int i)方法在這樣的MainPage.cs：

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