Task Speak(CancellationToken?cancelToken)
{
if (string.IsNullOrWhiteSpace(text))
{
return(Task.CompletedTask);
}
if (language.HasValue && !string.IsNullOrWhiteSpace(language.Value.Language))
{
Locale locale = null;
if (!string.IsNullOrWhiteSpace(language.Value.Country))
{
locale = new Locale(language.Value.Language, language.Value.Country);
}
else
{
locale = new Locale(language.Value.Language);
}
var result = textToSpeech.IsLanguageAvailable(locale);
if (result == LanguageAvailableResult.CountryAvailable)
{
textToSpeech.SetLanguage(locale);
}
else
{
Console.WriteLine("Locale: " + locale + " was not valid, setting to default.");
SetDefaultLanguage();
}
}
else
{
SetDefaultLanguage();
}
var tcs = new TaskCompletionSource <object>();
cancelToken?.Register(() =>
{
textToSpeech.Stop();
tcs.TrySetCanceled();
});
textToSpeech.SetPitch(pitch);
textToSpeech.SetSpeechRate(speakRate);
textToSpeech.SetOnUtteranceProgressListener(new TtsProgressListener(tcs));
#pragma warning disable CS0618 // Type or member is obsolete
count++;
var map = new Dictionary <string, string>
{
[Android.Speech.Tts.TextToSpeech.Engine.KeyParamUtteranceId] = count.ToString()
};
textToSpeech.Speak(text, QueueMode.Flush, map);
#pragma warning restore CS0618 // Type or member is obsolete
return(tcs.Task);
}
public AndroidTextToSpeech(AndroidSensusService service)
{
_textToSpeech = new TextToSpeech(service, this);
_initWait = new ManualResetEvent(false);
_utteranceWait = new ManualResetEvent(false);
_disposed = false;
_textToSpeech.SetOnUtteranceProgressListener(this);
}
public Task Init()
{
if (initialized)
{
return(Task.FromResult(true));
}
this.initTcs = new TaskCompletionSource <bool>();
Console.WriteLine("Current version: " + (int)global::Android.OS.Build.VERSION.SdkInt);
Android.Util.Log.Info("CrossTTS", "Current version: " + (int)global::Android.OS.Build.VERSION.SdkInt);
textToSpeech = new Android.Speech.Tts.TextToSpeech(Application.Context, this);
listener = new TtsProgressListener();
textToSpeech.SetOnUtteranceProgressListener(listener);
return(this.initTcs.Task);
//bool hasThrown = false;
//bool isValid = false;
//while (!isValid)
//{
// try
// {
// textToSpeech.Speak("Initializing", QueueMode.Add, null, null);
// isValid = true;
// }
// catch (Exception e)
// {
// if (!hasThrown)
// {
// hasThrown = true;
// Android.Util.Log.Debug("TTS", "(At least one) failure to initialize TTS.");
// }
// }
//}
//return Task.CompletedTask;
}
