private void VirtualizeItem(VirtualizingFlipViewItem item)
{
if (_nextVirtualizingItem != null)
{
_virtualizeItemTaskCancellationTokenSource?.Cancel();
_nextVirtualizingItem.Virtualize();
_virtualizeItemTask = null;
_virtualizeItemTaskCancellationTokenSource = null;
}
_nextVirtualizingItem = item;
_virtualizeItemTaskCancellationTokenSource = new CancellationTokenSource();
_virtualizeItemTask = new Task(ToVirtualizeItem, _virtualizeItemTaskCancellationTokenSource.Token);
_virtualizeItemTask.Start();
}
private async void RealizeItem(VirtualizingFlipViewItem item)
{
if (_nextVirtualizingItem == item)
{
_virtualizeItemTaskCancellationTokenSource?.Cancel();
_nextVirtualizingItem = null;
_virtualizeItemTask = null;
_virtualizeItemTaskCancellationTokenSource = null;
}
await item.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, item.Realize);
}