import 'package:flutter/cupertino.dart'; import 'package:flutter/material.dart'; class TimeLineWidget extends StatefulWidget { final bool isUp; TimeLineWidget({Key key, this.isUp}); _TimeLineWidgetState createState() => _TimeLineWidgetState(); } class _TimeLineWidgetState extends State { @override Widget build(BuildContext context) { return Stack( children: [ Container( width: double.infinity, height: 150, color: Colors.grey[400], child: Center( child: Divider( color: Colors.white, height: 5, thickness: 5, ), ), ), if (widget.isUp) Container() else Container(), Container() ], ); } }