Drawer - Building menus in your Flutter APP

 

Menus are a quite important part of any APP, because it makes possible to users to navigate through the APPs screens.

For building Menus with Flutter a simple alternative is based on the usage of Drawer class.

In the block of code below, you can see it is just a Widget, composed by a header, with its title, and then can have a set of ListTile widgets, which will represent it menu item. These items may be composed by icons, titles, and of course the action that is triggered with they are clicked.

 

class NavDrawer extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Drawer(
      child: ListView(
        padding: EdgeInsets.zero,
        children: <Widget>[
          DrawerHeader(
            child: Text(
              'Menu',
              style: TextStyle(color: Colors.white, fontSize: 25),
            ),
            decoration: BoxDecoration(
                color: Colors.grey,
                image: DecorationImage(
                    fit: BoxFit.fill,
                    image: AssetImage('assets/images/cover.jpg'))),
          ),
          ListTile(
            leading: Icon(Icons.input),
            title: Text('Messages Demo'),
            onTap: () => {Navigator.push( context, MaterialPageRoute(builder: (context) => MessagesExample()))},
          ),

 

 

Then, once the Drawer is defined you can use that in your another screens, assigning a drawer object to their drawer attribute, as we have in this example below:

 

Widget build(BuildContext context) {

  return Scaffold(

    drawer: NavDrawer(),

    appBar: AppBar(

      title: Text(widget.title),

    ),

    body: Center(
 
This will make your interface looks like this:


 
You can take a copy of a full working example here: https://github.com/rafaelqg/flutter_dart_example
 
A video class explaining this code is available here:
 

https://www.youtube.com/watch?v=kPFMmaWhnTU

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