task_screen.dart

import 'package:flutter/material.dart';
import 'tasks_list.dart';
import 'add_task_screen.dart';

class TasksScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.black,
      floatingActionButton: FloatingActionButton(
        backgroundColor: Colors.green,
        child: Icon(Icons.add),
        onPressed: () {
          showModalBottomSheet(
              context: context, builder: (context) => AddTaskScreen());
        },
      ),
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: <Widget>[
          Expanded(
            child: Container(
                child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: <Widget>[
                CircleAvatar(
                  child: Icon(Icons.list, size: 30.0, color: Colors.white),
                  backgroundColor: Colors.pink,
                  radius: 30.0,
                ),
                SizedBox(
                  height: 10.0,
                ),
                Text(
                  'Todoey',
                  style: TextStyle(
                    color: Colors.lightGreen,
                    fontSize: 50.0,
                    fontWeight: FontWeight.w700,
                  ),
                ),
                Text(
                  '12 Tasks',
                  style: TextStyle(
                    color: Colors.lightGreen,
                    fontSize: 18.0,
                  ),
                ),
                Expanded(
                    child: Container(
                        padding: EdgeInsets.symmetric(horizontal: 20.0),
                        decoration: BoxDecoration(
                          color: Colors.yellow,
                          borderRadius: BorderRadius.only(
                            topLeft: Radius.circular(20.0),
                            topRight: Radius.circular(20.0),
                          ),
                        ),
                        child: TaskList())),
              ],
            )),
          ),
        ],
      ),
    );
  }
}