AnimatedButtonBar is a flutter library that allows you to create a row of buttons with an animation on selection.
Add this to your app's pubspec.yaml file:
dependencies:
animated_button_bar: ^0.0.2Then you have to import the package with:
import 'package:animated_button_bar/animated_button_bar.dart'; And use an AnimatedBarButton like this:
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
//inverted selection button bar
AnimatedButtonBar(
radius: 8.0,
padding: const EdgeInsets.all(16.0),
invertedSelection: true,
children: [
ButtonBarEntry(onTap: () => print('First item tapped'), child: Text('Day')),
ButtonBarEntry(onTap: () => print('Second item tapped'), child: Text('Week')),
ButtonBarEntry(onTap: () => print('Third item tapped'), child: Text('Month')),
ButtonBarEntry(onTap: () => print('Fourth item tapped'), child: Text('Year'))
],
),
//You can populate it with different types of widgets like Icon
AnimatedButtonBar(
radius: 32.0,
padding: const EdgeInsets.all(16.0),
backgroundColor: Colors.blueGrey.shade800,
foregroundColor: Colors.blueGrey.shade300,
elevation: 24,
borderColor: Colors.white,
borderWidth: 2,
innerVerticalPadding: 16,
children: [
ButtonBarEntry(onTap: () => print('First item tapped'), child: Icon(Icons.person)),
ButtonBarEntry(onTap: () => print('Second item tapped'), child: Icon(Icons.people)),
],
),
],
), 
| parameter | description | default |
|---|---|---|
| animationDuration | animation duration when tap | const Duration(milliseconds: 200) |
| backgroundColor | main color of the widget | Theme.of(context).backgroundColor |
| borderColor | color of the border | null |
| borderWidth | width of the border | borderColor != null ? 1.0 : 0.0; |
| children | A list of ButtonBarEntry to display | required |
| curve | the curve for the animation | Curves.fastOutSlowIn |
| elevation | double | 0 |
| foregroundColor | color for the selection | Theme.of(context).accentColor |
| invertedSelection | bool | false |
| radius | double | 0.0 |
| verticalPadding | double | 8.0 |