/// <summary>Handles the Click event of the BackButton control.</summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="RoutedEventArgs"/> instance containing the event data.</param>
private async void BackButton_Click(object sender, RoutedEventArgs e)
{
ConnectedAnimation animation = ConnectedAnimationService.GetForCurrentView().PrepareToAnimate("backwardsAnimation", SmokeGrid.Children[0]);
animation.Completed += Animation_Completed;
Collection.ScrollIntoView(_storedItem, ScrollIntoViewAlignment.Default);
Collection.UpdateLayout();
if (ApiInformation.IsApiContractPresent("Windows.Foundation.UniversalApiContract", 7))
{
animation.Configuration = new DirectConnectedAnimationConfiguration();
}
await Collection.TryStartConnectedAnimationAsync(animation, _storedItem, "connectedElement");
}
private void OnLoaded(AdaptiveGridView adaptiveGrid)
{
IsMultiselectionEnable = false;
if (adaptiveGrid == null || LastSelectedItem == null)
{
return;
}
var selectedItem = Items.FirstOrDefault(item => item.Item.Id == LastSelectedItem.Item.Id);
if (selectedItem == null)
{
return;
}
ConnectedAnimation animation = ConnectedAnimationService.GetForCurrentView().GetAnimation(Constants.ConnectedAnimationKey);
if (animation != null)
{
adaptiveGrid.ScrollIntoView(selectedItem, ScrollIntoViewAlignment.Default);
adaptiveGrid.UpdateLayout();
var containerObject = adaptiveGrid.ContainerFromItem(selectedItem);
if (containerObject is GridViewItem container)
{
var root = (FrameworkElement)container.ContentTemplateRoot;
var image = (Image)root.FindName("SourceImage");
animation.TryStart(image);
}
else
{
animation.Cancel();
}
}
LastSelectedItem = null;
}