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Description:

motion tab bar v2

Motion Tab Bar v2, with null-safety support #

A beautiful animated widget for your Flutter Tab Bar.
Preview:
> v0.3.0 screenshot #

> v0.2.1 screenshot #

v0.1.x animation preview #

Getting Started #
Add the plugin:
dependencies:
motion_tab_bar_v2: ^0.3.0
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Basic Usage #
Import package #
import 'package:motion_tab_bar_v2/motion-tab-bar.dart';

// optional, only if using provided badge style
import 'package:motion_tab_bar_v2/motion-badge.widget.dart';

// optional, only if using "MotionTabBarController" to programmatically change the tab
import 'package:motion_tab_bar_v2/motion-tab-controller.dart';

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Use default TabController: #
// TabController _tabController;
MotionTabBarController? _motionTabBarController;

@override
void initState() {
super.initState();

//// Use normal tab controller
// _tabController = TabController(
// initialIndex: 1,
// length: 4,
// vsync: this,
// );

//// use "MotionTabBarController" to replace with "TabController", if you need to programmatically change the tab
_motionTabBarController = MotionTabBarController(
initialIndex: 1,
length: 4,
vsync: this,
);
}

@override
void dispose() {
super.dispose();

// _tabController.dispose();
_motionTabBarController!.dispose();
}
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Add Motion Tab Bar to bottomNavigationbar: #
bottomNavigationBar: MotionTabBar(
controller: _motionTabBarController, // ADD THIS if you need to change your tab programmatically
initialSelectedTab: "Home",
labels: const ["Dashboard", "Home", "Profile", "Settings"],
icons: const [Icons.dashboard, Icons.home, Icons.people_alt, Icons.settings],

// optional badges, length must be same with labels
badges: [
// Default Motion Badge Widget
const MotionBadgeWidget(
text: '99+',
textColor: Colors.white, // optional, default to Colors.white
color: Colors.red, // optional, default to Colors.red
size: 18, // optional, default to 18
),

// custom badge Widget
Container(
color: Colors.black,
padding: const EdgeInsets.all(2),
child: const Text(
'48',
style: TextStyle(
fontSize: 14,
color: Colors.white,
),
),
),

// allow null
null,

// Default Motion Badge Widget with indicator only
const MotionBadgeWidget(
isIndicator: true,
color: Colors.red, // optional, default to Colors.red
size: 5, // optional, default to 5,
show: true, // true / false
),
],
tabSize: 50,
tabBarHeight: 55,
textStyle: const TextStyle(
fontSize: 12,
color: Colors.black,
fontWeight: FontWeight.w500,
),
tabIconColor: Colors.blue[600],
tabIconSize: 28.0,
tabIconSelectedSize: 26.0,
tabSelectedColor: Colors.blue[900],
tabIconSelectedColor: Colors.white,
tabBarColor: const Color(0xFFAFAFAF),
onTabItemSelected: (int value) {
setState(() {
// _tabController!.index = value;
_motionTabBarController!.index = value;
});
},
),
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add TabBarView to Scaffold body #
body: TabBarView(
physics: NeverScrollableScrollPhysics(), // swipe navigation handling is not supported
// controller: _tabController,
controller: _motionTabBarController,
children: <Widget>[
const Center(
child: Text("Dashboard"),
),
const Center(
child: Text("Home"),
),
const Center(
child: Text("Profile"),
),
const Center(
child: Text("Settings"),
),
],
),
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to change tabs programmatically #
...

ElevatedButton(
// set MotionTabBarController index to new tab index
onPressed: () => _motionTabBarController.index = 0,
child: const Text('Dashboard Page'),
),
ElevatedButton(
// set MotionTabBarController index to new tab index
onPressed: () => _motionTabBarController.index = 1,
child: const Text('Home Page'),
),

...

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