void client_DownloadFileCompleted(object sender, DownloadDataCompletedEventArgs e)
{
_rawGifBytes = e.Result;
//AndHUD.Shared.Dismiss(this);
GifDrawable gifFromBytes = new GifDrawable(_rawGifBytes);
RunOnUiThread(() => {
progress.Dismiss();
});
_gifTextureView.SetImageDrawable(gifFromBytes);
}