How to get gradient bottom navigation tab in flutter? - flutter

Question

There is a package on pub
https://pub.dev/packages/gradient_bottom_navigation_bar
but this is not updated for a very long time.
So, is there a way to create own custom navigation bar with a gradient effect?
something like this...

Answer 1

All it's possible with Flutter, one option could be use a transparent background in your BottomNavigationBar and put it inside a container with a BoxDecoration, try the next:
import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: Center(
child: Text("Hello"),
),
bottomNavigationBar: _createBottomNavigationBar(),
),
);
}
Widget _createBottomNavigationBar() {
return Container(
decoration: BoxDecoration(
gradient: LinearGradient(
colors: [Color(0xFF00D0E1), Color(0xFF00B3FA)],
begin: Alignment.topLeft,
end: Alignment.topRight,
stops: [0.0, 0.8],
tileMode: TileMode.clamp,
),
),
child: BottomNavigationBar(
currentIndex: 0,
onTap: (index) {},
showUnselectedLabels: false,
backgroundColor: Colors.transparent,
type: BottomNavigationBarType.fixed,
elevation: 0,
unselectedItemColor: Colors.white,
selectedIconTheme: IconThemeData(color: Colors.white),
items: [
BottomNavigationBarItem(
icon: Icon(Icons.home),
title: Text(
"Home",
style: TextStyle(color: Colors.white),
),
),
BottomNavigationBarItem(
icon: Icon(Icons.business),
title: Text(
"Business",
style: TextStyle(color: Colors.white),
),
),
BottomNavigationBarItem(
icon: Icon(Icons.school),
title: Text(
"School",
style: TextStyle(color: Colors.white),
),
),
],
),
);
}
}

Answer 2

I've got a more basic solution. You can check this DartPad.
The end result:
The trick is this:
Set the background color of BottomNavigationBar as transparent.
Wrap it with Stack.
Add a Container as first child to the Stack.
Set Container's decoration to gradient.
Set its height to 60.