public async Task Speak(string text)
{
var tts = TinBotHelpers.WrapWithSSML(text);
var ssStream = await Synth.SynthesizeSsmlToStreamAsync(tts);
await ExecuteOnMainThread(() =>
{
MediaElement.MarkerReached -= MediaElementOnMarkerReached;
MediaElement.MarkerReached += MediaElementOnMarkerReached;
MediaElement.Markers.Clear();
ssStream.Markers.ToList()
.ForEach(x => MediaElement.Markers.Add(new TimelineMarker {
Text = x.Text, Time = x.Time
}));
MediaElement.SetSource(ssStream, ssStream.ContentType);
MediaElement.Play();
});
await Task.Delay(500);
var playing = true;
while (playing)
{
await ExecuteOnMainThread(() =>
{
playing = MediaElement.CurrentState == MediaElementState.Playing ||
MediaElement.CurrentState == MediaElementState.Buffering ||
MediaElement.CurrentState == MediaElementState.Opening;
});
await Task.Delay(500);
}
}