C# (CSharp) Microsoft.Toolkit.Uwp.SampleApp AnimationHelper示例

示例#1

        private void SamplePickerListView_ChoosingItemContainer(Windows.UI.Xaml.Controls.ListViewBase sender, ChoosingItemContainerEventArgs args)
        {
            if (!AnimationHelper.IsImplicitHideShowSupported)
            {
                return;
            }

            args.ItemContainer = args.ItemContainer ?? new ListViewItem();

            var showAnimation = AnimationHelper.GetOpacityAnimation(_compositor, 1, 0, _defaultShowAnimationDuration, 200);

            (showAnimation as ScalarKeyFrameAnimation).DelayBehavior = AnimationDelayBehavior.SetInitialValueBeforeDelay;

            ////ElementCompositionPreview.SetImplicitHideAnimation(args.ItemContainer, GetOpacityAnimation(0, _defaultHideAnimationDiration));
            ElementCompositionPreview.SetImplicitShowAnimation(args.ItemContainer, showAnimation);
        }