Flutter Navigate to Independent screen from BottomNavigation bar - flutter

Question

Following is my code which i am using for bottom navigation
class NaviBottom extends StatefulWidget {
#override
_NaviBottomState createState() => _NaviBottomState();
}
class _NaviBottomState extends State<NaviBottom> {
int _currentIndex = 0;
final List<Widget> _children = [
HomeScreen(),
AddProperties(),
MyFavProperties(),
MyProfile(),
Login()
];
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text("Open Houze")),
body: _children[_currentIndex],
bottomNavigationBar: BottomNavigationBar(
backgroundColor: Colors.blue,
selectedItemColor: Colors.black,
unselectedItemColor: Colors.white,
onTap: onTabTapped,
currentIndex: _currentIndex,
items: [
BottomNavigationBarItem(
icon: new Icon(Icons.home), title: new Text('First')),
BottomNavigationBarItem(
icon: new Icon(Icons.mail), title: new Text('Second')),
BottomNavigationBarItem(
icon: Icon(Icons.person), title: Text('Third')),
BottomNavigationBarItem(
icon: Icon(Icons.person), title: Text('Forth')),
BottomNavigationBarItem(
icon: Icon(Icons.person), title: Text('Fifith'))
],
),
);
}
void onTabTapped(int index) {
setState(() {
_currentIndex = index;
});
}
}
In this my first three tab views to be shown with bottom navigation bar whereas when I click on the last two tabs I need to Navigate and show other screens without BottomNavigation bar,

Answer 1

void onTabTapped(int index) {
if(index >= 0 && index < 3)
setState(() {
_currentIndex = index;
});
if(index == 3)
Navigator.push(
context,
MaterialPageRoute(builder: (context) => FourthPage()),
);
if(index == 4)
Navigator.push(
context,
MaterialPageRoute(builder: (context) => FifthPage()),
);
}
N.B : Dart has type inference, meaning that you don't need to annotate the type if it's explicit. So you can just type final _children and remove the List<Widget>.