INNER CODE UNIT · Dart

y

Dimibe/grouped_list · lib/grouped_list.dart:458

        var y = itemBox.localToGlobal(Offset(0, -listPos - headerHeight)).dy;
        if (y <= headerHeight && y > max) {
          topItemKey = entry.key;
          max = y;
        }
      }
    }
    var index = math.max(int.parse(topItemKey), 0);
    if (index != _topElementIndex) {
      var curr = widget.groupBy(_sortedElements[index]);
      E prev;

      try {
        prev = widget.groupBy(_sortedElements[_topElementIndex]);
      } on RangeError catch (_) {
        prev = widget.groupBy(_sortedElements[0]);
      }

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