protected override void Dispose(bool disposing)
{
if (disposing)
{
tts?.Stop();
tts?.Shutdown();
tts = null;
}
base.Dispose(disposing);
}
void IDisposable.Dispose()
{
textToSpeech?.Stop();
textToSpeech?.Dispose();
textToSpeech = null;
initialized = false;
}
private void Speak()
{
if (string.IsNullOrWhiteSpace(text))
{
return;
}
if (!queue && textToSpeech.IsSpeaking)
{
textToSpeech.Stop();
}
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();
}
textToSpeech.SetPitch(pitch);
textToSpeech.SetSpeechRate(speakRate);
textToSpeech.Speak(text, queue ? QueueMode.Add : QueueMode.Flush, null);
}
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#pragma warning disable CS0618 // Type or member is obsolete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#pragma warning restore CS0618 // Type or member is obsolete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);
}
void IDisposable.Dispose()
{
textToSpeech?.Stop();
textToSpeech?.Dispose();
textToSpeech = null;
}
async Task Speak(CancellationToken?cancelToken)
{
if (string.IsNullOrWhiteSpace(text))
{
//return Task.CompletedTask;
return;
}
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();
var flag = new AsyncManualResetEvent();
var utteranceID = Guid.NewGuid().ToString();
var doneTask = listener.ListenFor(utteranceID);
cancelToken?.Register(() =>
{
textToSpeech.Stop();
tcs?.TrySetCanceled();
listener?.completionSources?[utteranceID]?.TrySetCanceled();
});
var utteranceProgressListenerDictionary = new Dictionary <string, string>();
utteranceProgressListenerDictionary.Add(Android.Speech.Tts.TextToSpeech.Engine.KeyParamUtteranceId, utteranceID);
utteranceProgressListenerDictionary.Add(Android.Speech.Tts.TextToSpeech.Engine.KeyParamVolume, volume.ToString());
textToSpeech.SetPitch(pitch);
textToSpeech.SetSpeechRate(speakRate);
//textToSpeech.SetOnUtteranceProgressListener(new TtsProgressListener(flag));
//var bundle = new Android.OS.Bundle();
//bundle.PutFloat(Android.Speech.Tts.TextToSpeech.Engine.KeyParamVolume, 1.0f);
#pragma warning disable CS0618 // Type or member is obsolete
//textToSpeech.Speak(text, QueueMode.Flush, bundle, text);
textToSpeech.Speak(text, QueueMode.Flush, utteranceProgressListenerDictionary);
#pragma warning restore CS0618 // Type or member is obsolete
//return tcs.Task;
//return Task.WhenAny(tcs.Task, flag.WaitAsync());
//return listener.IsDone();
//int i = 0;
//var sw = new System.Diagnostics.Stopwatch();
//sw.Start();
//while (doneTask.Status != TaskStatus.RanToCompletion)
//{
// Task.Delay(100).Wait(101);
// //await Task.Delay(100, CancellationTokenHelpers.Timeout(105).Token);
// Android.Util.Log.Debug("Speech", $"Iteration {i}, {sw.ElapsedMilliseconds} ms - status is {doneTask.Status}.");
// i++;
//}
//return doneTask;
await doneTask;
}
