一个小范围 滑动的动画 GIS

public void Transform(double from, double to, FrameworkElement target, double duration)
      {
          Storyboard sb = new Storyboard();

          ScaleTransform scale = new ScaleTransform();
          target.RenderTransform = scale;
          target.RenderTransformOrigin = new Point(0.5, 0.5);

          DoubleAnimation dX = new DoubleAnimation();
          dX.To = to;
          dX.From = from;
          dX.EasingFunction = new PowerEase() { EasingMode = EasingMode.EaseOut };
          dX.Duration = TimeSpan.FromSeconds(duration);
          sb.Children.Add(dX);

          DoubleAnimation dY = new DoubleAnimation();
          dY.To = to;
          dY.From = from;
          dY.EasingFunction = new PowerEase() { EasingMode = EasingMode.EaseOut };
          dY.Duration = TimeSpan.FromSeconds(duration);
          sb.Children.Add(dY);

          DoubleAnimation dao = new DoubleAnimation();
          dao.To = to;
          dao.Duration = TimeSpan.FromSeconds(duration);
          sb.Children.Add(dao);

          Storyboard.SetTarget(dX, scale);
          Storyboard.SetTargetProperty(dX, new PropertyPath("ScaleX"));

          Storyboard.SetTarget(dY, scale);
          Storyboard.SetTargetProperty(dY, new PropertyPath("ScaleY"));

          Storyboard.SetTarget(dao, target);
          Storyboard.SetTargetProperty(dao, new PropertyPath("Opacity"));

          sb.Begin();
      }

调用方法 如下

  Transform(1, 0.75, _item, 0.2);

_item 是listboxitem 类型