private void ItemsGridView_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
var item = e.AddedItems.OfType <福利>().FirstOrDefault();
if (item != null)
{
ItemsGridView.ScrollIntoView(item);
}
}
protected override void OnNavigatedTo(NavigationEventArgs e)
{
base.OnNavigatedTo(e);
if (e.NavigationMode == NavigationMode.Back)
{
ItemsGridView.Loaded += async(o_, e_) =>
{
var connectedAnimation = ConnectedAnimationService
.GetForCurrentView()
.GetAnimation("BorderDest");
if (connectedAnimation != null)
{
var item = ItemsGridView.Items[s_persistedItemIndex];
ItemsGridView.ScrollIntoView(item);
await ItemsGridView.TryStartConnectedAnimationAsync(
connectedAnimation,
item,
"BorderSource"
);
}
};
}
}
private async void ItemsGridView_Loaded(object sender, RoutedEventArgs e)
{
if (ConnectedAnimationData.AnimationIsEnabled)
{
if (_navigatedUri != null)
{
//récupération de l'animation
var animation = ConnectedAnimationService.GetForCurrentView().GetAnimation("Image");
if (animation != null)
{
var item = ViewModel.Items.First(compare => compare.ImageUrl == _navigatedUri);
//on scroll vers l'item
ItemsGridView.ScrollIntoView(item, ScrollIntoViewAlignment.Default);
await Task.Yield();
var container = ItemsGridView.ContainerFromItem(item) as GridViewItem;
if (container != null)
{
var root = (FrameworkElement)container.ContentTemplateRoot;
var image = (Image)root.FindName("ImageItem");
image.Opacity = 1;
//on lance l'animation
animation.TryStart(image);
}
else
{
animation.Cancel();
}
}
_navigatedUri = null;
}
}
}
private void ItemsGridView_Loaded(object sender, RoutedEventArgs e)
{
if (_navigatedUri != null)
{
// May be able to perform backwards Connected Animation
var animation = ConnectedAnimationService.GetForCurrentView().GetAnimation("Image");
if (animation != null)
{
var item = Model.Items.Where(compare => compare.ImageUrl == _navigatedUri).First();
ItemsGridView.ScrollIntoView(item, ScrollIntoViewAlignment.Default);
ItemsGridView.UpdateLayout();
var container = ItemsGridView.ContainerFromItem(item) as GridViewItem;
if (container != null)
{
var root = (FrameworkElement)container.ContentTemplateRoot;
var image = (Image)root.FindName("Image");
// Wait for image opened. In future Insider Preview releases, this won't be necessary.
image.Opacity = 0;
image.ImageOpened += (sender_, e_) =>
{
image.Opacity = 1;
animation.TryStart(image);
};
}
else
{
animation.Cancel();
}
}
_navigatedUri = null;
}
}