private void ContainerItem_Loaded(object sender, RoutedEventArgs e)
{
var itemsPanel = (ItemsWrapGrid)SamplePickerGridView.ItemsPanelRoot;
var itemContainer = (GridViewItem)sender;
itemContainer.Loaded -= this.ContainerItem_Loaded;
var button = itemContainer.FindDescendant <Button>();
if (button != null)
{
button.Click -= MoreInfoClicked;
button.LostFocus -= MoreInfoLostFocus;
button.Click += MoreInfoClicked;
button.LostFocus += MoreInfoLostFocus;
}
var itemIndex = SamplePickerGridView.IndexFromContainer(itemContainer);
var referenceIndex = itemsPanel.FirstVisibleIndex;
if (SamplePickerGridView.SelectedIndex >= 0)
{
referenceIndex = SamplePickerGridView.SelectedIndex;
}
var relativeIndex = Math.Abs(itemIndex - referenceIndex);
if (itemContainer.Content != CurrentSample && itemIndex >= 0 && itemIndex >= itemsPanel.FirstVisibleIndex && itemIndex <= itemsPanel.LastVisibleIndex)
{
var staggerDelay = TimeSpan.FromMilliseconds(relativeIndex * 30);
var animationCollection = new AnimationCollection()
{
new OpacityAnimation()
{
From = 0, To = 1, Duration = TimeSpan.FromMilliseconds(400), Delay = staggerDelay, SetInitialValueBeforeDelay = true
},
new ScaleAnimation()
{
From = "0.9", To = "1", Duration = TimeSpan.FromMilliseconds(400), Delay = staggerDelay
}
};
VisualExtensions.SetNormalizedCenterPoint(itemContainer, "0.5");
animationCollection.StartAnimation(itemContainer);
}
}
private void ContainerItem_Loaded(object sender, RoutedEventArgs e)
{
var itemsPanel = (ItemsWrapGrid)SamplePickerGridView.ItemsPanelRoot;
var itemContainer = (GridViewItem)sender;
itemContainer.Loaded -= this.ContainerItem_Loaded;
var button = itemContainer.FindDescendant <Button>();
if (button != null)
{
button.Click -= MoreInfoClicked;
button.LostFocus -= MoreInfoLostFocus;
button.Click += MoreInfoClicked;
button.LostFocus += MoreInfoLostFocus;
}
var itemIndex = SamplePickerGridView.IndexFromContainer(itemContainer);
var referenceIndex = itemsPanel.FirstVisibleIndex;
if (SamplePickerGridView.SelectedIndex >= 0)
{
referenceIndex = SamplePickerGridView.SelectedIndex;
}
var relativeIndex = Math.Abs(itemIndex - referenceIndex);
if (itemContainer.Content != CurrentSample && itemIndex >= 0 && itemIndex >= itemsPanel.FirstVisibleIndex && itemIndex <= itemsPanel.LastVisibleIndex)
{
var staggerDelay = TimeSpan.FromMilliseconds(relativeIndex * 30);
VisualExtensions.SetNormalizedCenterPoint(itemContainer, "0.5");
AnimationBuilder.Create()
.Opacity(from: 0, to: 1, delay: staggerDelay)
.Scale(from: 0.9, to: 1, delay: staggerDelay)
.Start(itemContainer);
}
}