void PlayGif(FFGifDrawable gifDrawable, CancellationTokenSource tokenSource)
{
var token = tokenSource.Token;
Task.Run(async() =>
{
try
{
token.ThrowIfCancellationRequested();
var gifDecoder = gifDrawable.GifHelper;
int n = gifDecoder.GetFrameCount();
//int ntimes = gifDecoder.GetLoopCount();
//TODO DISABLED for endless loop
int ntimes = 0;
int repetitionCounter = 0;
do
{
for (int i = 0; i < n; i++)
{
token.ThrowIfCancellationRequested();
var bitmap = gifDecoder.GetFrame(i);
int t = gifDecoder.GetDelay(i);
if (bitmap != null && bitmap.Handle != IntPtr.Zero && !bitmap.IsRecycled)
{
await ImageService.Instance.Config.MainThreadDispatcher.PostAsync(() => base.SetImageBitmap(bitmap)).ConfigureAwait(false);
}
token.ThrowIfCancellationRequested();
await Delay.DelayAsync(t - 2);
}
if (ntimes != 0)
{
repetitionCounter++;
}
} while (repetitionCounter <= ntimes);
}
catch (Exception)
{
}
finally
{
tokenSource.TryDispose();
}
}, token);
}