carousel_slider

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

Installation

Add carousel_slider: ^1.0.1 in your pubspec.yaml dependencies.

How to use

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

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

For a more detail example please take a look at the example folder.

screenshot

Params

new CarouselSlider(
  items: items,
  viewportFraction: 0.8,
  initialPage: 0,
  aspectRatio: 16/9,
  height: 400,
  reverse: false,
  autoPlay: false,
  interval: const Duration(seconds: 4),
  autoPlayCurve: Curves.fastOutSlowIn,
  autoPlayDuration: const Duration(milliseconds: 800),
  updateCallback: someFunction,
  distortion: false
)

You can pass the above params to the class. If you pass the height params, the aspectRatio param will be ignore.

Instance methods

You can use the instance methods to programmatically take control of the pageView's position.

.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.

Faq

Can I display a dotted indicator for the slider?

Yes, you can.

class CarouselWithIndicator extends StatefulWidget {
  @override
  _CarouselWithIndicatorState createState() => _CarouselWithIndicatorState();
}

class _CarouselWithIndicatorState extends State<CarouselWithIndicator> {
  int _current = 0;

  @override
  Widget build(BuildContext context) {
    return Stack(
      children: [
        CarouselSlider(
          items: child,
          autoPlay: true,
          aspectRatio: 2.0,
          updateCallback: (index) {
            setState(() {
              _current = index;
            });
          },
        ),
        Positioned(
          top: 0.0,
          left: 0.0,
          right: 0.0,
          child: Row(
            mainAxisAlignment: MainAxisAlignment.center,
            children: map<Widget>(imgList, (index, url) {
              return Container(
                width: 8.0,
                height: 8.0,
                margin: EdgeInsets.symmetric(vertical: 10.0, horizontal: 2.0),
                decoration: BoxDecoration(
                  shape: BoxShape.circle,
                  color: _current == index ? Color.fromRGBO(0, 0, 0, 0.9) : Color.fromRGBO(0, 0, 0, 0.4)
                ),
              );
            }),
          )
        )
      ]
    );
  }
}

The complete code is located in the example folder.

Libraries

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]