Generally, we use drawer into appBar(position drawer/endDrawer). I've to set the drawer functionality into Bottom Navigation Bar Item with Home, Setting. These 3 items will be workable for all page and have to display selected index of these Three(3) items. How I can achieve this.
class BottomNavBar extends StatefulWidget {
@override
_BottomNavBarState createState() => _BottomNavBarState();
}
class _BottomNavBarState extends State<BottomNavBar> {
int _selectedIndex = 1;
@override
Widget build(BuildContext context) {
return BottomNavigationBar(
currentIndex: _selectedIndex,
onTap: onTabTapped,
//for more than three items
type: BottomNavigationBarType.fixed,
items: [
BottomNavigationBarItem(
icon: Icon(processIcon),
label: 'My Task',
),
BottomNavigationBarItem(
icon: Icon(Icons.home),
label: 'Home',
),
BottomNavigationBarItem(
icon: Icon(settingIcon),
label: 'Setting',
),
BottomNavigationBarItem(
icon: Icon(menuIcon),
label: 'Menu',
),
],
);
}
void onTabTapped(int index) {
setState(() {
_selectedIndex = index;
print('index ${index}');
});
}
}
Here the Drawer will be navigated into Menu.
CodePudding user response:
You can use GlobalKey
on Scaffold
and use it to open drawer.
void onTabTapped(int index) {
setState(() {
_selectedIndex = index;
if (_selectedIndex == 3 && _scaffoldKey.currentState != null) {
_scaffoldKey.currentState!.openDrawer();
} });
}
class _BottomNavBarState extends State<BottomNavBar> {
int _selectedIndex = 1;
final GlobalKey<ScaffoldState> _scaffoldKey = GlobalKey<ScaffoldState>();
@override
Widget build(BuildContext context) {
return Scaffold(
key: _scaffoldKey,
body: Text("B $_selectedIndex"),
drawer: const Drawer(
backgroundColor: Colors.cyanAccent,