private async void ShowLoading(string text) { LoadingText.Text = text; if (!isloading) { isloading = true; Loading.Visibility = Visibility.Visible; while (isloading) { await LoadingImage.Rotate(20f, 50f, 0).Then().Rotate(-20f, 50f, 0).SetDelay(200).SetDurationForAll(1000).StartAsync(); } } }