scroll to widget

scroll_to_widget.dart

void _scrollToWidget() async {
  // find the index of fruit to scroll to in fruits
  // let's scroll to Mandarina
  final index = fruits.indexOf('Mandarina');
  // get global key of Mandarina
  final key = _fruitKeys[index];
  // find the render box of Mandarina
  var box = key.currentContext?.findRenderObject();

  _scrollController.position.ensureVisible(
    box!,
    // How far into view the item should be scrolled (between 0 and 1)
    // with 1 being the bottom of the view and 0 being the top.
    alignment: 0.2,
    duration: const Duration(milliseconds: 200),
  );
}