private async void ShowFilter(object sender, EventArgs e) { HolderFilter.IsVisible = !HolderFilter.IsVisible; if (!HolderFilter.IsVisible) { var DefualtHeight = App.ScreenHeight; await FilterView.TranslateTo(0, (FilterView.Height == -1 ? DefualtHeight : FilterView.Height) + SetterStyle.Maintain_HeightAspectRatio(15), 250); } else { await FilterView.TranslateTo(0, 0, 250); } }