flutter_carousel_widget

A customizable carousel slider widget in Flutter which supports infinite scrolling, auto scrolling, custom child widget, custom animations and pre-built indicators.

Features

• Infinite Scroll
• Custom Child Widget
• Auto Play
• Horizontal and Vertical Alignment
• Pre-built Carousel Indicators
• Custom Indicators

Demo

View Demo

Installation

Add flutter_carousel_widget as a dependency in your pubspec.yaml file:

dependencies:
  flutter_carousel_widget: ^1.2.3

And import it:

import 'package:flutter_carousel_widget/flutter_carousel_widget.dart';

Usage

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

FlutterCarousel(
  options: CarouselOptions(
    height: 400.0, 
    showIndicator: true,
    slideIndicator: CircularSlideIndicator(),
  ),
  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(),
)

Option Customization

FlutterCarousel(
  items: items,
  options: CarouselOptions(
  height: 400.0,
  aspectRatio: 16 / 9,
  viewportFraction: 1.0,
  initialPage: 0,
  enableInfiniteScroll: true,
  reverse: false,
  autoPlay: false,
  autoPlayInterval: const Duration(seconds: 2),
  autoPlayAnimationDuration: const Duration(milliseconds: 800),
  autoPlayCurve: Curves.fastOutSlowIn,
  enlargeCenterPage: false,
  carouselController: CarouselController(),
  onPageChanged: callbackFunction,
  pageSnapping: true,
  scrollDirection: Axis.horizontal,
  pauseAutoPlayOnTouch: true,
  pauseAutoPlayOnManualNavigate: true,
  pauseAutoPlayInFiniteScroll: false,
  enlargeStrategy: CenterPageEnlargeStrategy.scale,
  disableCenter: false,
  showIndicator: true,
  floatingIndicator = true,
  slideIndicator: CircularSlideIndicator(),
  )
 )

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.

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

Carousel controller

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>[
      FlutterCarousel(
        items: child,
        options: CarouselOptions(
          autoPlay: false,
          carouselController: buttonCarouselController,
          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.

Screenshots

Basic Flutter Carousel:

Enlarge Center Widget Flutter Carousel:

Manually Controlled Flutter Carousel:

Flutter Carousel with Custom Indicator:

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