Error in Documentation - CarouselController does not work for StatelessWidget

[MichalDanielDobrzanski]

This section is wrong: https://pub.dev/packages/carousel_slider#carousel-controller

CarouselController does not work for StatelessWidget. It should be StatefulWidget

[kishan-dhankecha]

Hello @MichalDanielDobrzanski,

We can you CarouselController in StatelessWidget. If you are unable to do so please provide a sample code.

Here is the full code that uses CarouselController in StatelessWidget

Sample Code

import 'package:carousel_slider_plus/carousel_slider_plus.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(MainApp());
}

const List<String> imgList = [
  'https://images.unsplash.com/photo-1520342868574-5fa3804e551c?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=6ff92caffcdd63681a35134a6770ed3b&auto=format&fit=crop&w=1951&q=80',
  'https://images.unsplash.com/photo-1522205408450-add114ad53fe?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=368f45b0888aeb0b7b08e3a1084d3ede&auto=format&fit=crop&w=1950&q=80',
  'https://images.unsplash.com/photo-1519125323398-675f0ddb6308?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=94a1e718d89ca60a6337a6008341ca50&auto=format&fit=crop&w=1950&q=80',
  'https://images.unsplash.com/photo-1523205771623-e0faa4d2813d?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=89719a0d55dd05e2deae4120227e6efc&auto=format&fit=crop&w=1953&q=80',
  'https://images.unsplash.com/photo-1508704019882-f9cf40e475b4?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=8c6e5e3aba713b17aa1fe71ab4f0ae5b&auto=format&fit=crop&w=1352&q=80',
  'https://images.unsplash.com/photo-1519985176271-adb1088fa94c?ixlib=rb-0.3.5&ixid=eyJhcHBfaWQiOjEyMDd9&s=a0c8d632e977f94e5d312d9893258f59&auto=format&fit=crop&w=1355&q=80'
];

class MainApp extends StatelessWidget {
  MainApp({super.key});

  final CarouselController _controller = CarouselController();

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              CarouselSlider(
                disableGesture: true,
                carouselController: _controller,
                options: CarouselOptions(autoPlay: true),
                items: imgList.map((item) {
                  return Image.network(item, fit: BoxFit.cover);
                }).toList(),
              ),
              Row(
                children: [
                  Expanded(
                    child: TextButton(
                      onPressed: () => _controller.previousPage(
                        duration: const Duration(milliseconds: 300),
                        curve: Curves.linear,
                      ),
                      child: const Text('Previous'),
                    ),
                  ),
                  Expanded(
                    child: TextButton(
                      onPressed: () => _controller.nextPage(
                        duration: const Duration(milliseconds: 300),
                        curve: Curves.linear,
                      ),
                      child: const Text('Next'),
                    ),
                  ),
                ],
              ),
            ],
          ),
        ),
      ),
    );
  }
}