protected override void StartHideAnimation(UIElement element, AnimationContext context)
{
var visual = ElementCompositionPreview.GetElementVisual(element);
var compositor = visual.Compositor;
var fadeOutAnimation = compositor.CreateScalarKeyFrameAnimation();
fadeOutAnimation.InsertExpressionKeyFrame(0.0f, "this.CurrentValue");
fadeOutAnimation.InsertKeyFrame(1.0f, 0.0f);
fadeOutAnimation.Duration = TimeSpan.FromMilliseconds(DefaultAnimationDurationInMs * AnimationSlowdownFactor);
var batch = compositor.CreateScopedBatch(CompositionBatchTypes.Animation);
visual.StartAnimation("Opacity", fadeOutAnimation);
batch.End();
batch.Completed += delegate
{
visual.Opacity = 1.0f;
OnHideAnimationCompleted(element);
};
}
protected override bool HasHideAnimationCore(UIElement element, AnimationContext context)
{
return(true);
}
protected override bool HasShowAnimationCore(UIElement element, AnimationContext context)
{
return(HasShowAnimationValue);
}
public CallInfo(int index, AnimationContext context)
{
Index = index;
Context = context;
}
