How to Route to a specific page in bottom navigation bar? - flutter

Question

I have 4 pages in bottom navigation bar. I am facing a problem related to route that i want to route to a specific page in bottom navigation bar from another page?
e.g I am going to login page and post successful login I want to route user to accountdetails(AccountSetting) but if I am selecting account setting then in that page bottom navigation bar is not showing and if I am routing to bottom nav bar here I am unable to select index of my choice. How can I select index of my choice because I don't want to make new page having bottom nav bar?
class BottomNavBar extends StatefulWidget {
static String routeName = "/bottombar";
#override
_BottomNavBarState createState() => _BottomNavBarState();
}
class _BottomNavBarState extends State<BottomNavBar> {
CartCountController cartCountController = CartCountController();
DoublePressBackBotton doublePressBackBotton = DoublePressBackBotton();
int _selectedIndex = 0;
#override
void initState() {
Future.delayed(Duration(milliseconds: 1000)).then((value) {
cartCountController.cartItemCount();
});
super.initState();
}
#override
void dispose() {
Future.delayed(Duration(milliseconds: 1000)).then((value) {
cartCountController.cartItemCount();
});
super.dispose();
}
List _widgetOptions = [
HomeScreen(),
CategoryList(),
InviteFriend(),
AccountSetting(),
];
void _onItemTapped(
int index,
) {
setState(() {
_selectedIndex = index;
});
}
#override
Widget build(BuildContext context) {
return
// drawer: SideDrawer(),
body: WillPopScope(
child: _widgetOptions.elementAt(_selectedIndex),
onWillPop: () {
return doublePressBackBotton.doubleBack();
},
),
bottomNavigationBar: BottomNavigationBar(
// backgroundColor: Color(0xff202020),
items: <BottomNavigationBarItem>[
BottomNavigationBarItem(
backgroundColor: kPrimaryColor,
icon: Icon(
Icons.home_outlined,
color: Colors.white,
),
label: 'Home',
),
BottomNavigationBarItem(
backgroundColor: kPrimaryColor,
icon: Icon(
Icons.category,
color: Colors.white,
),
label: 'Category',
),
BottomNavigationBarItem(
backgroundColor: kPrimaryColor,
icon: ImageIcon(
AssetImage(AppImages.phonecall),
color: Colors.white,
),
label: 'Invite',
),
BottomNavigationBarItem(
backgroundColor: kPrimaryColor,
icon: Icon(
Icons.person_outlined,
color: Colors.white,
),
label: 'Account',
),
],
// fixedColor: Colors.black,
currentIndex: _selectedIndex,
// selectedItemColor: Color(0xffF9C000),
onTap: _onItemTapped,
showUnselectedLabels: true,
selectedItemColor: kPrimaryLightColor,
// unselectedItemColor: Color(0xff737373),
unselectedLabelStyle: GoogleFonts.lato(color: Colors.white),
selectedLabelStyle: GoogleFonts.lato(color: Colors.white),
),
);
// );
}
}