uwp 之语音识别

xml code

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<Page

x:Class="MyApp.MainPage"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:local="using:MyApp"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

mc:Ignorable="d"

Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">

<StackPanel>

<TextBox Name="txtInput" Height="100" TextWrapping="Wrap"/>

<Button Margin="0,15,0,10" Content="点击这里，开始识别" Click="onClick" HorizontalAlignment="Stretch"/>

<TextBlock Name="tbDisplay" FontSize="16" Margin="3,13,0,0" Foreground="Yellow"/>

</StackPanel>

</Page>

C#  code

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public sealed partial class MainPage : Page

{

public MainPage()

{

this.InitializeComponent();

this.NavigationCacheMode = NavigationCacheMode.Required;

}

/// <summary>

/// Invoked when this page is about to be displayed in a Frame.

/// </summary>

/// <param name="e">Event data that describes how this page was reached.

/// This parameter is typically used to configure the page.</param>

protected override void OnNavigatedTo(NavigationEventArgs e)

{

// TODO: Prepare page for display here.

// TODO: If your application contains multiple pages, ensure that you are

// handling the hardware Back button by registering for the

// Windows.Phone.UI.Input.HardwareButtons.BackPressed event.

// If you are using the NavigationHelper provided by some templates,

// this event is handled for you.

}

private async void onClick(object sender, RoutedEventArgs e)

{

Button btn = sender as Button;

btn.IsEnabled = false;

using (SpeechRecognizer recognizer = new SpeechRecognizer())

{

try

{

// 编译所有语法协定

SpeechRecognitionCompilationResult compilationResult = await recognizer.CompileConstraintsAsync();

if (compilationResult.Status == SpeechRecognitionResultStatus.Success)

{

// 开始识别

SpeechRecognitionResult recogResult = await recognizer.RecognizeAsync();

// 显示识别结果

if (recogResult.Status == SpeechRecognitionResultStatus.Success)

{

tbDisplay.Text = "识别完成。";

txtInput.Text = recogResult.Text;

}

}

}

catch (Exception ex)

{

tbDisplay.Text = "异常：" + ex.Message;

}

}

btn.IsEnabled = true;

}

}