simple flutter bottom navigation bar widget

Last update: Oct 8, 2022

Overview

bmnav

A very flexible Flutter implementation of the Bottom Navigation Bar.

Get Started

Add bmanv to your pubspec.yaml file:

dependencies:
  bmnav: ^0.3.4

Import bmnav in your main.dart file:

import 'package:bmnav/bmnav.dart' as bmnav;

Implement bmnav.BottomNav in the bottomNavigationBar parameter in the Scaffold widget:

@override
Widget build(BuildContext ctx) {
	return Scaffold(
		appBar: AppBar(title: Text('Bottom Nav Demo')),
		body: Container(child: Text('Hello World')),
		bottomNavigationBar: bmnav.BottomNav(
			items: [
				bmnav.BottomNavItem(Icons.home),
				bmnav.BottomNavItem(Icons.fitness_center),
				bmnav.BottomNavItem(Icons.person),
				bmnav.BottomNavItem(Icons.view_headline)
			],
		),
	);
}

You can find a fully fledged example with navigation and custom styles here.

Props

Name	Explanation	Default
index	starting index	0
onTap	callback when a bottom nav item is pressed	null
items	bottom nav items	null
elevation	elevation of bottom nav	8.0
color	background color	Colors.white
iconStyle	icon styles (`size`, `onSelectSize`, `color`, `onSelectColor`)	null
labelStyle	label styles (`visible`, `showOnSelect`, `textStyle`, `onSelectTextStyle`)	null

Contributions

Feel free to contribute to this project.

Support

If you found this project to be useful then please consider donating to help me continue maintaining this project and create new projects. :)

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Comments

Select no tab
Hi. I would like to have no tab selected at startup and it does not seem to be possible actually due to the currentIndex = widget.index ?? 0; present in the BottomNavState class.

Would it be possible to have no tab selected if index is null?

[Edit]: I tried to remove that line and let currentIndex be null. It works and no item is selected. In addition to unselect an item I modified onItemClick:

onItemClick(int i) { setState(() { if (i == currentIndex) { currentIndex = null; } else { currentIndex = i; } }); if (widget.onTap != null) widget.onTap(i); }
opened by synw 0
Can't Change tab manaully?

If i am tab 3 and when i press back button i want to jump to tab 0. It is possible.
bottomNavigationBar: bmnav.BottomNav( index: currentIndex, onTap: (index) { currentIndex = index; setState(() {}); }, items: [ bmnav.BottomNavItem( CustomIcons.icon_home, label: 'Home', ), bmnav.BottomNavItem( CustomIcons.electro_1, label: 'Hot Deals', ), bmnav.BottomNavItem(CustomIcons.icon_card, label: 'Go Card'), ], ),

When i change index manually and set state on tab changed.

opened by smaharjan974 0