alignment method

Alignment alignment()

UncompleteDocumentation

Implementation

Alignment alignment() {
  if (isAtEdge()) {
    try {
      if (scroll_controller.position.pixels ==
          scroll_controller.position.minScrollExtent) {
        return Alignment.topCenter;
      } else if (scroll_controller.position.pixels ==
          scroll_controller.position.maxScrollExtent) {
        return Alignment.bottomCenter;
      }
    } catch (e) {}
  }
  return Alignment.center;
}