Task Update()
{
Debug.WriteLine("SmtcMetadataHandler.Update()");
try
{
var smtc = _systemMediaTransportControls;
var position = _getPosition();
TimeSpan?nextEvent = null;
lock (_lock)
{
nextEvent = _metadataSink.Update(_state, position);
}
var title = GetTitle();
var artist = GetArtist();
if (title != _title || artist != _artist)
{
Debug.WriteLine("SmtcMetadataHandler.Update() set " + title);
_title = title;
_artist = artist;
smtc.DisplayUpdater.ClearAll();
smtc.DisplayUpdater.Type = MediaPlaybackType.Music;
var properties = smtc.DisplayUpdater.MusicProperties;
if (null != title)
{
properties.Title = title;
}
if (null != artist)
{
properties.Artist = artist;
}
smtc.DisplayUpdater.Update();
_notifier.Notify(BackgroundNotificationType.Track, title);
}
if (nextEvent.HasValue && nextEvent > position)
{
if (nextEvent.Value != _lastReport)
{
_lastReport = nextEvent.Value;
_reportNextEvent(_lastReport);
}
}
}
catch (Exception ex)
{
Debug.WriteLine("SmtcMetadataSink.Update() failed: " + ex.Message);
}
return(TplTaskExtensions.CompletedTask);
}
