■ TextToSpeech 클래스의 SpeakAsync 정적 메소드에서 텍스트를 음성으로 출력할 때 취소하는 방법을 보여준다.
▶ MainPage.xaml
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<?xml version="1.0" encoding="utf-8" ?> <ContentPage x:Class="TestProject.MainPage" xmlns="http://schemas.microsoft.com/dotnet/2021/maui" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"> <Grid ColumnDefinitions="*,Auto,*" RowDefinitions="*,Auto,Auto,10,Auto,*"> <Label Grid.Row="1" Grid.Column="1" HorizontalOptions="Start" Text="메시지" /> <Entry x:Name="messageEntry" Grid.Row="2" Grid.Column="1" HorizontalOptions="StartAndExpand" WidthRequest="300" /> <Button x:Name="startButton" Grid.Row="4" Grid.Column="1" HorizontalOptions="Center" Margin="0,10,0,0" WidthRequest="150" Text="음성 출력 시작" /> </Grid> </ContentPage> |
▶ MainPage.xaml.cs
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namespace TestProject; /// <summary> /// 메인 페이지 /// </summary> public partial class MainPage : ContentPage { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 취소 토큰 소스 /// </summary> private CancellationTokenSource cancellationTokenSource = null; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainPage() /// <summary> /// 생성자 /// </summary> public MainPage() { InitializeComponent(); this.startButton.Clicked += startButton_Clicked; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private #region 음성 출력 시작 버튼 클릭시 처리하기 - startButton_Clicked(sender, e) /// <summary> /// 음성 출력 시작 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private async void startButton_Clicked(object sender, EventArgs e) { if(this.startButton.Text == "음성 출력 시작") { string message = this.messageEntry.Text; if(string.IsNullOrWhiteSpace(message)) { await DisplayAlert("INFORMATION", "메시지를 입력해주시기 바랍니다.", "확인"); return; } this.startButton.Text = "음성 출력 중단"; this.cancellationTokenSource = new CancellationTokenSource(); _ = TextToSpeech.SpeakAsync(message, this.cancellationTokenSource.Token).ContinueWith ( (t) => { this.cancellationTokenSource.Dispose(); this.cancellationTokenSource = null; this.startButton.Text = "음성 출력 시작"; }, TaskScheduler.FromCurrentSynchronizationContext() ); } else { if(this.cancellationTokenSource != null) { if(!this.cancellationTokenSource.IsCancellationRequested) { this.cancellationTokenSource.Cancel(); } } } } #endregion } |
