void SelectTab() // Select a tab view { if (Container.Children.Count == 0) { return; } foreach (Label item in Container.Children) { item.TextColor = Color.FromRgba(255, 255, 255, 178); } var new_selected = (Label)Container.Children[SelectedIndex]; if (new_selected != null) { new_selected.TextColor = Color.White; if (Device.RuntimePlatform == Device.iOS) { scrollview.ScrollToAsync(new_selected, ScrollToPosition.Center, true); } slider.WidthRequest = new_selected.Width; slider.TranslateTo(Container.X + new_selected.X, 0); } }