TimelineEventDisplay get plainEventDisplay {
    return TimelineEventDisplay(
        child: TimelineEventCard(
          title: Text("just now"),
          content: Text("someone commented on your timeline ${DateTime.now()}"),
        ),
        indicator: TimelineDots.of(context).circleIcon);
  }

  List<TimelineEventDisplay> events;

  Widget _buildTimeline() {
    return TimelineTheme(
        data: TimelineThemeData(lineColor: Colors.blueAccent),
        child: Timeline(
          indicatorSize: 56,
          events: events,
        ));
  }

  void _addEvent() {
    setState(() {
      events.add(plainEventDisplay);
    });
  }

Widget _buildTimeline() {
  return Timeline(
      indicatorSize: 56,
      events: events,
      altOffset: Offset(0, -24) // set offset
  );
}

  TimelineEventDisplay get plainEventDisplay {
    return TimelineEventDisplay(
        anchor: IndicatorPosition.top,
        indicatorOffset: Offset(0, 24),
        child: TimelineEventCard(
          title: Text("multi\nline\ntitle\nawesome!"),
          content: Text("someone commented on your timeline ${DateTime.now()}"),
        ),
        indicator: randomIndicator);
  }