flutter_carousel_widget 1.2.2 
flutter_carousel_widget: ^1.2.2 copied to clipboard
nixrajput.comA customizable carousel slider widget in Flutter which supports inifinte scrolling, auto scrolling, custom child widget, custom animations and built-in indicators.
import 'package:flutter/material.dart';
import 'package:flutter_carousel_widget/flutter_carousel_widget.dart';
import 'app_themes.dart';
final List<String> imgList = [
'https://source.unsplash.com/random/1920x1920/?abstracts',
'https://source.unsplash.com/random/1920x1920/?fruits,flowers',
'https://source.unsplash.com/random/1080x640/?sports',
'https://source.unsplash.com/random/1920x1920/?nature',
'https://source.unsplash.com/random/1920x1920/?science',
'https://source.unsplash.com/random/1920x1920/?computer'
];
void main() => runApp(const CarouselDemo());
class CarouselDemo extends StatelessWidget {
const CarouselDemo({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return MaterialApp(
debugShowCheckedModeBanner: false,
initialRoute: '/',
routes: {
'/': (ctx) => const CarouselDemoHome(),
'/complicated': (ctx) => const ComplicatedImageDemo(),
'/enlarge': (ctx) => const EnlargeStrategyDemo(),
'/manual': (ctx) => const ManuallyControlledSlider(),
'/fullscreen': (ctx) => const FullscreenSliderDemo(),
'/indicator': (ctx) => const CarouselWithIndicatorDemo(),
'/position': (ctx) => const KeepPageViewPositionDemo(),
'/multiple': (ctx) => const MultipleItemDemo(),
},
theme: AppThemes.lightTheme,
darkTheme: AppThemes.darkTheme,
themeMode: ThemeMode.system,
);
}
}
class DemoItem extends StatelessWidget {
final String title;
final String route;
const DemoItem(this.title, this.route, {Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return InkWell(
onTap: () {
Navigator.pushNamed(context, route);
},
child: Card(
color: Colors.blueAccent,
margin: const EdgeInsets.only(
bottom: 16.0,
left: 16.0,
right: 16.0,
),
child: Padding(
padding: const EdgeInsets.symmetric(
vertical: 16.0,
horizontal: 16.0,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
title,
style: const TextStyle(
fontSize: 18.0,
color: Colors.white,
),
),
const Icon(Icons.arrow_forward_ios)
],
),
),
),
);
}
}
class CarouselDemoHome extends StatelessWidget {
const CarouselDemoHome({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text(
'Carousel Demo',
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 24.0,
),
),
centerTitle: true,
),
body: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 600.0),
child: ListView(
shrinkWrap: true,
children: const [
SizedBox(height: 8.0),
DemoItem('Image Slider Demo', '/complicated'),
DemoItem('Enlarge Strategy Demo', '/enlarge'),
DemoItem('Manually Controlled Slider', '/manual'),
DemoItem('Fullscreen Carousel Slider', '/fullscreen'),
DemoItem('Carousel with Custom Indicator Demo', '/indicator'),
DemoItem('Keep PageView Position Demo', '/position'),
DemoItem('Multiple Item in One Screen Demo', '/multiple'),
],
),
),
),
);
}
}
final List<Widget> imageSliders = imgList
.map((item) => Padding(
padding: const EdgeInsets.symmetric(horizontal: 8.0),
child: ClipRRect(
borderRadius: const BorderRadius.all(Radius.circular(4.0)),
child: Image.network(
item,
width: double.infinity,
fit: BoxFit.cover,
loadingBuilder: (BuildContext ctx, Widget child,
ImageChunkEvent? loadingProgress) {
if (loadingProgress == null) return child;
return Center(
child: CircularProgressIndicator(
value: loadingProgress.expectedTotalBytes != null
? loadingProgress.cumulativeBytesLoaded /
loadingProgress.expectedTotalBytes!
: null,
),
);
},
errorBuilder: (
BuildContext context,
Object exception,
StackTrace? stackTrace,
) {
return const Text(
'Oops!! An error occurred. 😢',
style: TextStyle(fontSize: 16.0),
);
},
),
),
))
.toList();
class ComplicatedImageDemo extends StatelessWidget {
const ComplicatedImageDemo({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Image Slider Demo')),
body: Center(
child: Container(
constraints: BoxConstraints(
maxHeight: MediaQuery.of(context).size.width,
),
child: FlutterCarousel(
options: CarouselOptions(
autoPlay: true,
autoPlayInterval: const Duration(seconds: 2),
),
items: imgList
.map((item) => Padding(
padding: const EdgeInsets.symmetric(horizontal: 4.0),
child: ClipRRect(
borderRadius:
const BorderRadius.all(Radius.circular(4.0)),
child: Image.network(
item,
width: double.infinity,
fit: BoxFit.cover,
loadingBuilder: (BuildContext ctx, Widget child,
ImageChunkEvent? loadingProgress) {
if (loadingProgress == null) return child;
return Center(
child: CircularProgressIndicator(
value: loadingProgress.expectedTotalBytes !=
null
? loadingProgress.cumulativeBytesLoaded /
loadingProgress.expectedTotalBytes!
: null,
),
);
},
errorBuilder: (
BuildContext context,
Object exception,
StackTrace? stackTrace,
) {
return const Text(
'Oops!! An error occurred. 😢',
style: TextStyle(fontSize: 16.0),
);
},
),
),
))
.toList(),
),
),
),
);
}
}
class EnlargeStrategyDemo extends StatelessWidget {
const EnlargeStrategyDemo({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Center Enlarge Strategy Demo')),
body: Center(
child: FlutterCarousel(
options: CarouselOptions(
enlargeCenterPage: true,
autoPlay: true,
autoPlayInterval: const Duration(seconds: 2),
viewportFraction: 0.8,
enlargeStrategy: CenterPageEnlargeStrategy.height,
slideIndicator: CircularWaveSlideIndicator(),
floatingIndicator: false,
),
items: imageSliders,
),
),
);
}
}
class ManuallyControlledSlider extends StatefulWidget {
const ManuallyControlledSlider({Key? key}) : super(key: key);
@override
State<StatefulWidget> createState() {
return _ManuallyControlledSliderState();
}
}
class _ManuallyControlledSliderState extends State<ManuallyControlledSlider> {
final CarouselController _controller = CarouselController();
@override
void initState() {
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Manually Controlled Slider')),
body: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 800.0),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
FlutterCarousel(
items: imgList
.map((img) => Image.network(
img,
width: MediaQuery.of(context).size.width,
fit: BoxFit.cover,
loadingBuilder: (BuildContext ctx, Widget child,
ImageChunkEvent? loadingProgress) {
if (loadingProgress == null) return child;
return Center(
child: CircularProgressIndicator(
value: loadingProgress.expectedTotalBytes !=
null
? loadingProgress.cumulativeBytesLoaded /
loadingProgress.expectedTotalBytes!
: null,
),
);
},
errorBuilder: (
BuildContext context,
Object exception,
StackTrace? stackTrace,
) {
return const Text(
'Oops!! An error occurred. 😢',
style: TextStyle(fontSize: 16.0),
);
},
))
.toList(),
options: CarouselOptions(
viewportFraction: 1.0,
autoPlay: false,
floatingIndicator: false,
enableInfiniteScroll: true,
carouselController: _controller,
slideIndicator: CircularWaveSlideIndicator(),
),
),
const SizedBox(height: 16.0),
Padding(
padding: const EdgeInsets.symmetric(
horizontal: 16.0,
),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Flexible(
child: ElevatedButton(
onPressed: _controller.previousPage,
child: const Padding(
padding: EdgeInsets.all(8.0),
child: Icon(Icons.arrow_back),
),
),
),
Flexible(
child: ElevatedButton(
onPressed: _controller.nextPage,
child: const Padding(
padding: EdgeInsets.all(8.0),
child: Icon(Icons.arrow_forward),
),
),
),
],
),
)
],
),
),
),
);
}
}
class FullscreenSliderDemo extends StatelessWidget {
const FullscreenSliderDemo({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Fullscreen Slider Demo')),
body: Center(
child: Builder(
builder: (context) {
final height = MediaQuery.of(context).size.height;
return FlutterCarousel(
options: CarouselOptions(
height: height,
viewportFraction: 1.0,
enlargeCenterPage: false,
autoPlay: true,
enableInfiniteScroll: true,
autoPlayInterval: const Duration(seconds: 2),
slideIndicator: CircularWaveSlideIndicator(),
),
items: imgList
.map((item) => Center(
child: Image.network(
item,
width: double.infinity,
fit: BoxFit.cover,
height: height,
)))
.toList(),
);
},
),
),
);
}
}
class CarouselWithIndicatorDemo extends StatefulWidget {
const CarouselWithIndicatorDemo({Key? key}) : super(key: key);
@override
State<StatefulWidget> createState() {
return _CarouselWithIndicatorState();
}
}
class _CarouselWithIndicatorState extends State<CarouselWithIndicatorDemo> {
int _current = 0;
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Custom Indicator Demo')),
body: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Expanded(
child: FlutterCarousel(
items: imageSliders,
options: CarouselOptions(
autoPlay: true,
autoPlayInterval: const Duration(seconds: 1),
viewportFraction: 1.0,
showIndicator: false,
onPageChanged: (index, reason) {
setState(() {
_current = index;
});
}),
),
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: imgList.asMap().entries.map((entry) {
return Container(
width: 12.0,
height: 12.0,
margin:
const EdgeInsets.symmetric(vertical: 8.0, horizontal: 4.0),
decoration: BoxDecoration(
shape: BoxShape.circle,
color: (Theme.of(context).brightness == Brightness.dark
? Colors.white
: Colors.black)
.withOpacity(_current == entry.key ? 0.9 : 0.4)),
);
}).toList(),
),
],
),
);
}
}
class KeepPageViewPositionDemo extends StatelessWidget {
const KeepPageViewPositionDemo({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Keep PageView Position Demo')),
body: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 800.0),
child: ListView.builder(
shrinkWrap: true,
itemBuilder: (ctx, index) {
if (index == 2) {
return FlutterCarousel(
options: CarouselOptions(
viewportFraction: 1.0,
aspectRatio: 16 / 9,
enlargeCenterPage: false,
showIndicator: true,
autoPlay: true,
slideIndicator: CircularStaticIndicator(),
pageViewKey:
const PageStorageKey<String>('carousel_slider'),
),
items: imageSliders,
);
} else {
return Container(
margin: const EdgeInsets.symmetric(vertical: 20),
color: Colors.blue,
height: 200,
child: const Center(
child: Text('other content'),
),
);
}
},
),
),
),
);
}
}
class MultipleItemDemo extends StatelessWidget {
const MultipleItemDemo({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Multiple Item in One Slide Demo')),
body: Center(
child: ConstrainedBox(
constraints: const BoxConstraints(maxWidth: 800.0),
child: FlutterCarousel.builder(
options: CarouselOptions(
aspectRatio: 2.0,
enlargeCenterPage: false,
viewportFraction: 1,
showIndicator: true,
enableInfiniteScroll: true,
autoPlayInterval: const Duration(seconds: 2),
autoPlay: true,
slideIndicator: CircularStaticIndicator(),
),
itemCount: (imgList.length / 2).round(),
itemBuilder: (context, index, realIdx) {
final first = index * 2;
final second = first + 1;
return Row(
children: [first, second].map((idx) {
return Expanded(
flex: 1,
child: Container(
margin: const EdgeInsets.symmetric(horizontal: 10),
child: Image.network(
imgList[idx],
fit: BoxFit.cover,
width: double.infinity,
),
),
);
}).toList(),
);
},
),
),
),
);
}
}
const weekDays = ["mon", "tue", "wed", "thu", "fri", "sat", "sun"];
class NextPrevState extends StatefulWidget {
const NextPrevState({Key? key}) : super(key: key);
@override
State<NextPrevState> createState() => NextPrevStateState();
}
class NextPrevStateState extends State<NextPrevState> {
Future<String>? _value;
final CarouselController _controller = CarouselController();
Future<String> getValue() async {
await Future.delayed(const Duration(seconds: 3));
return 'Flutter Devs';
}
var current = 0;
@override
void initState() {
super.initState();
_value = getValue();
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: const Text('Image Slider Demo')),
body: Column(
children: [
FutureBuilder<String>(
future: _value,
builder: (BuildContext context, AsyncSnapshot<String> snapshot) {
if (snapshot.hasData) {
return Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Padding(
padding: const EdgeInsets.only(left: 10),
child: GestureDetector(
onTap: _controller.previousPage,
child: Icon(
Icons.chevron_left,
size: 50,
color: Colors.green.shade600,
),
),
),
Expanded(
child: Align(
alignment: Alignment.center,
child: Text(
snapshot.data!,
),
),
),
Padding(
padding: const EdgeInsets.only(left: 10),
child: GestureDetector(
onTap: _controller.nextPage,
child: Icon(
Icons.chevron_right,
size: 50,
color: Colors.green.shade600,
),
),
),
],
),
FlutterCarousel(
options: CarouselOptions(
autoPlay: false,
carouselController: _controller,
onPageChanged: (index, reason) {
setState(() {
current = index;
});
},
),
items: weekDays.map((i) {
return Builder(
builder: (BuildContext ctx) {
return Text(i);
},
);
}).toList(),
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
mainAxisSize: MainAxisSize.min,
children: weekDays.map((i) {
final idx = weekDays.indexOf(i);
return Container(
height: 10,
width: 10,
margin: const EdgeInsets.symmetric(horizontal: 2.0),
decoration: BoxDecoration(
color: current == idx
? Colors.green.shade600
: Colors.grey,
shape: BoxShape.circle,
),
);
}).toList(),
)
],
);
}
return const Center(child: Text('Loading'));
},
)
],
),
);
}
}Metadata
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Metadata
A customizable carousel slider widget in Flutter which supports inifinte scrolling, auto scrolling, custom child widget, custom animations and built-in indicators.
Homepage
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License
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