carousel_slider 4.2.1 copy "carousel_slider: ^4.2.1" to clipboard
carousel_slider: ^4.2.1 copied to clipboard

A carousel slider widget, support infinite scroll and custom child widget.

carousel_slider #

A carousel slider widget.

Features #

  • Infinite scroll
  • Custom child widgets
  • Auto play

Supported platforms #

  • Flutter Android
  • Flutter iOS
  • Flutter web
  • Flutter desktop

Live preview #

https://serenader2014.github.io/flutter_carousel_slider/#/

Note: this page is built with flutter-web. For a better user experience, please use a mobile device to open this link.

Installation #

Add carousel_slider: ^4.2.1 to your pubspec.yaml dependencies. And import it:

import 'package:carousel_slider/carousel_slider.dart';

How to use #

Simply create a CarouselSlider widget, and pass the required params:

CarouselSlider(
  options: CarouselOptions(height: 400.0),
  items: [1,2,3,4,5].map((i) {
    return Builder(
      builder: (BuildContext context) {
        return Container(
          width: MediaQuery.of(context).size.width,
          margin: EdgeInsets.symmetric(horizontal: 5.0),
          decoration: BoxDecoration(
            color: Colors.amber
          ),
          child: Text('text $i', style: TextStyle(fontSize: 16.0),)
        );
      },
    );
  }).toList(),
)

Params #


CarouselSlider(
   items: items,
   options: CarouselOptions(
      height: 400,
      aspectRatio: 16/9,
      viewportFraction: 0.8,
      initialPage: 0,
      enableInfiniteScroll: true,
      reverse: false,
      autoPlay: true,
      autoPlayInterval: Duration(seconds: 3),
      autoPlayAnimationDuration: Duration(milliseconds: 800),
      autoPlayCurve: Curves.fastOutSlowIn,
      enlargeCenterPage: true,
      enlargeFactor: 0.3,
      onPageChanged: callbackFunction,
      scrollDirection: Axis.horizontal,
   )
 )

Since v2.0.0, you'll need to pass the options to CarouselOptions. For each option's usage you can refer to carousel_options.dart.

If you pass the height parameter, the aspectRatio parameter will be ignored.

Build item widgets on demand #

This method will save memory by building items once it becomes necessary. This way they won't be built if they're not currently meant to be visible on screen. It can be used to build different child item widgets related to content or by item index.


CarouselSlider.builder(
  itemCount: 15,
  itemBuilder: (BuildContext context, int itemIndex, int pageViewIndex) =>
    Container(
      child: Text(itemIndex.toString()),
    ),
)

In order to manually control the pageview's position, you can create your own CarouselController, and pass it to CarouselSlider. Then you can use the CarouselController instance to manipulate the position.

class CarouselDemo extends StatelessWidget {
  CarouselController buttonCarouselController = CarouselController();

 @override
  Widget build(BuildContext context) => Column(
    children: <Widget>[
      CarouselSlider(
        items: child,
        carouselController: buttonCarouselController,
        options: CarouselOptions(
          autoPlay: false,
          enlargeCenterPage: true,
          viewportFraction: 0.9,
          aspectRatio: 2.0,
          initialPage: 2,
        ),
      ),
      RaisedButton(
        onPressed: () => buttonCarouselController.nextPage(
            duration: Duration(milliseconds: 300), curve: Curves.linear),
        child: Text('→'),
      )
    ]
  );
}

CarouselController methods #

.nextPage({Duration duration, Curve curve})

Animate to the next page

.previousPage({Duration duration, Curve curve})

Animate to the previous page

.jumpToPage(int page)

Jump to the given page.

.animateToPage(int page, {Duration duration, Curve curve})

Animate to the given page.

Screenshot #

Basic text carousel demo:

simple

Basic image carousel demo:

image

A more complicated image carousel slider demo:

complicated image

Fullscreen image carousel slider demo:

fullscreen

Image carousel slider with custom indicator demo:

indicator

Custom CarouselController and manually control the pageview position demo:

manual

Vertical carousel slider demo:

vertical

Simple on-demand image carousel slider, with image auto prefetch demo:

prefetch

No infinite scroll demo:

noloop

All screenshots above can be found at the example project.

License #

MIT

5013
likes
120
pub points
100%
popularity

Publisher

verified publisherserenader.me

A carousel slider widget, support infinite scroll and custom child widget.

Repository (GitHub)
View/report issues

Documentation

API reference

License

MIT (LICENSE)

Dependencies

flutter

More

Packages that depend on carousel_slider