to_do_app.dart

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      floatingActionButton: FloatingActionButton(
        onPressed: () {
          showModalBottomSheet(
              context: context,
              builder: (context) => MyB(),
              isScrollControlled: false);
        },
        child: Icon(Icons.add),
      ),
      backgroundColor: Colors.blueAccent,
      body: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          Container(
            padding: EdgeInsets.only(top: 60.0, left: 30.0),
            child: Column(
              crossAxisAlignment: CrossAxisAlignment.start,
              children: [
                CircleAvatar(
                  child: Icon(
                    Icons.list,
                    size: 30.0,
                  ),
                  radius: 30,
                  backgroundColor: Colors.white,
                ),
                SizedBox(
                  height: 20.0,
                ),
                Text(
                  "My to do",
                  style: TextStyle(
                    fontSize: 32,
                    fontWeight: FontWeight.w700,
                    color: Colors.white,
                  ),
                ),
                SizedBox(
                  height: 20.0,
                ),
                Text(
                  "10 Tasks done!",
                  style: TextStyle(
                    fontSize: 20,
                    color: Colors.white,
                  ),
                ),
              ],
            ),
          ),
          SizedBox(
            height: 20.0,
          ),
          Expanded(
            child: Container(
              child: myListView(),
              decoration: BoxDecoration(
                color: Colors.white,
                borderRadius: BorderRadius.only(
                  topLeft: Radius.circular(20.0),
                  topRight: Radius.circular(20.0),
                ),
              ),
            ),
          )
        ],
      ),
    );
  }
}