Custom Drawer

import 'package:flutter/material.dart';

class HomeScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
     appBar: AppBar(
        title: "MaisSync",
        centerTitle: true,
      ),
      drawer: CustomDrawer(),
      body: Center(
        child: DetailsWidget(),
      ),
    );
  }
}

class CustomDrawer extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Drawer(
      child: Column(
        children: <Widget>[
          DrawerHeader(
            child: Image.asset(
              "images/logo.png",
              width: 180,
            ),
          ),
          DrawerItem(
            text: "Início",
            icon: Icons.home,
            onTap: () {
              Navigator.of(context).push(
                MaterialPageRoute(builder: (context) => HomeScreen()),
              );
            },
          ),
          DrawerItem(
            text: "Configurações",
            icon: Icons.settings,
            onTap: () {
              Navigator.of(context).push(
                MaterialPageRoute(builder: (context) => SetupScreen()),
              );
            },
          ),
          DrawerItem(
            text: "LOGs",
            icon: Icons.insert_drive_file,
            onTap: () {
              Navigator.of(context).push(
                MaterialPageRoute(builder: (context) => LogScreen()),
              );
            },
          ),
        ],
      ),
    );
  }
}

class DrawerItem extends StatelessWidget {
  final String text;
  final IconData icon;
  final Function onTap;

  const DrawerItem({
    Key key,
    this.text,
    this.icon,
    this.onTap,
  }) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: onTap,
      child: ListTile(
        leading: Icon(icon, color: Colors.grey[800]),
        title: Text(
          text,
          style: TextStyle(
            color: Colors.grey[800],
          ),
        ),
      ),
    );
  }
}