Use case

In the video, I demonstrated the need to make the spot price stick to both the top and bottom. Achieving this requires knowing the element's position in the viewport or having a built-in feature that allows elements to stick to the top or bottom.

I forked the package and included additional code to determine the element's position. However, integrating such functionality directly into the package would greatly facilitate the creation of complex UIs, making the development process more efficient and user-friendly.

Proposal

void _getChildPosition({
    required double rowOffset,
    required double standardRowHeight,
  }) {
    if (childPositionGetter == null) {
      return;
    }

    
    final double offset = rowOffset;

    final double percent;
    if ((viewportDimension.height / 2) > offset) {
      percent = offset / viewportDimension.height;
    } else {
      final bool isAtBottom = offset + standardRowHeight >= viewportDimension.height;
      percent = isAtBottom ? 1.0 : (rowOffset + standardRowHeight) / viewportDimension.height;
    }

    childPositionGetter?.call(TableVicinity(column: 0, row: childIndex!), percent);
  }

if we can have something similar in RenderTableViewport class in _layoutCells we can easily get the child position