CODEWITHSUNDEEP
flutterflutter-layoutflutter-dependenciesflutter-webflutter-test
Ocwer Francis
Ocwer Francis

Reputation: 1

Getting an error of "dotsCount must be superior to zero ,Failed assertion: line 31 pos 16: 'dotsCount >= 1'"

The error i get after running my code

below is a sample of the code"

` @override Widget build(BuildContext context) { return Column( children: [ //slider section GetBuilder(builder: (popularProducts) { return Container( height: Dimentions.pageView, child: PageView.builder( controller: pageController, itemCount: popularProducts.popularProductList.length, itemBuilder: (context, position) { return _buildPageItem(position); }), ); }),

         //dots
        GetBuilder<PopularProductController>(builder: (popularProducts) {
     
          return DotsIndicator(
            dotsCount: popularProducts.popularProductList.length,
            position: _currPageValue,
             decorator: DotsDecorator(
              size: const Size.square(9.0),
             activeColor: AppColors.mainColor,
             activeSize: const Size(18.0, 9.0),
          activeShape: RoundedRectangleBorder(
              borderRadius: BorderRadius.circular(5.0)),
        ),
      );
    }),`

The controller file

`import 'package:food_app/data/repository/popular_product_repos.dart';
 import 'package:food_app/models/product_model.dart';
 import 'package:get/get.dart';

 class PopularProductController extends GetxController {
 final PopularProductRepository popularProductRepository;

 PopularProductController({required this.popularProductRepository});
 List<dynamic> _popularProductList = [];

 List<dynamic> get popularProductList => _popularProductList;

 Future<void> getPopularProductList() async {
 Response response = await popularProductRepository.getPopularProductList();
 if (response.statusCode == 200) {
  print("Got products");
  _popularProductList = [];
  _popularProductList.addAll(Product.fromJson(response.body).products);
  update();
  } else {}
}
}`

Upvotes: 0

Views: 768

Answers (2)

Suleman Abrar
Suleman Abrar

Reputation: 1

**Use this logic **

position:_currentIndex>images.length? _currentIndex=0: _currentIndex,

Upvotes: 0

Vogel
Vogel

Reputation: 1

This value must not be zero:

GetBuilder<PopularProductController>(builder: (popularProducts) {
          print(popularProducts.popularProductList.length);
          return DotsIndicator(
            dotsCount: popularProducts.popularProductList.isNotEmpty
                ? popularProducts.popularProductList.length
                : 2,
            position: _currPageValue,
            decorator: DotsDecorator(
              activeColor: AppColors.mainColor,
              size: const Size.square(9.0),
              activeSize: const Size(18.0, 9.0),
              activeShape: RoundedRectangleBorder(
                  borderRadius: BorderRadius.circular(5.0)),
            ),
          );
        }),

Upvotes: 0

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