private void PackagesScrolled(object sender, ItemsViewScrolledEventArgs e)
{
var top = e.VerticalOffset < 1;
var transY = Convert.ToInt32(SearchBarView.TranslationY);
if (transY == 0 &&
e.VerticalDelta > 15 &&
!top)
{
var trans = SearchBarView.Height + SearchBarView.Margin.Top;
var safeInsets = On <Xamarin.Forms.PlatformConfiguration.iOS>().SafeAreaInsets();
Task.WhenAll(
SearchBarView.TranslateTo(0, -(trans + safeInsets.Top), 250, Easing.CubicIn),
SearchBarView.FadeTo(0.25, 200));
}
else if (transY != 0 &&
(e.VerticalDelta < 0 && (Math.Abs(e.VerticalDelta) > 10) || top))
{
Task.WhenAll(
SearchBarView.TranslateTo(0, 0, 250, Easing.CubicOut),
SearchBarView.FadeTo(1, 200));
}
}
protected override void OnAppearing()
{
base.OnAppearing();
Task.WhenAll(
SearchBarView.TranslateTo(0, 0, 250, Easing.CubicOut),
SearchBarView.FadeTo(1, 200));
}
protected override void OnAppearing()
{
base.OnAppearing();
// Show SearchBar if it was previously hidden when navigating back to this page
Task.WhenAll(
SearchBarView.TranslateTo(0, 0, 250, Easing.CubicOut),
SearchBarView.FadeTo(1, 200));
}