Add a main drawer to a button in flutter - flutter

Question

I am new to flutter and I need to add the main drawer of the app to a button as you can see in the below picture(This is the upper section of the UI of the app)
Any ideas of having the main drawer apply to a button instead of having it normally assign it to the app bar. (This mobile app doesn't have an app bar)
#override
Widget build(BuildContext context) {
var mediaQuery = MediaQuery.of(context);
return Scaffold(
key: scaffoldKey,
body: Stack(
children: <Widget>[
_buildWidgetAlbumCover(mediaQuery),
getMainContentWidget(mediaQuery),
_buildWidgetMenu(mediaQuery),
_buildWidgetFloatingActionButton(mediaQuery),
Drawer(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
DrawerHeader(
child: Text('Drawer Header'),
decoration: BoxDecoration(
color: Colors.blue,
),
),
ListTile(
title: Text('Item 1'),
onTap: () {
},
),
ListTile(
title: Text('Item 2'),
onTap: () {
},
),
],
),
),
],
),
);
}
Widget _buildWidgetMenu(MediaQueryData mediaQuery) {
return Padding(
padding: EdgeInsets.only(
left: 2.0,
top: mediaQuery.padding.top + 2.0,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
IconButton(
icon: Icon(
Icons.menu,
color: Colors.white,
size: 25,
),
padding: EdgeInsets.all(2.0),
// onPressed: () => scaffoldKey.currentState.openDrawer(),
),
],
),
);
}
enter image description here
This is output which I get after having this code. This drawer can't even change or as it is fixed one. I want the normal drawer which is also attached to the _buildWidgetMenu instead of the app bar drawer.

Answer 1

If youre using a sacffold it has a drawer property that you can make use of eg cookbook
return Scaffold(
appBar: AppBar(title: Text(title)),
body: Center(child: Text('My Page!')),
drawer: Drawer(...
opening your drawer from button clicks
var scaffoldKey = GlobalKey<ScaffoldState>();
//required key
Scaffold(
key: scaffoldKey,
drawer: new Drawer(
child: new ListView(
padding: EdgeInsets.zero,...
body:Center(..
IconButton(
icon: Icon(Icons.menu),
//open drawer
onPressed: () => scaffoldKey.currentState.openDrawer(),
),