flutter - 为什么要出售此消息，setState() 或 markNeedsBuild() 在构建 obx Getx 期间调用

Question

当我执行 Get.to (product ()) 时，该消息开始出现，我不明白为什么会这样。流程是产品主页 -> 产品详情 -> 购买历史。然后，在购买历史记录中，我想使用 Get.to (product ()) 将产品重定向到视图，但我收到了该消息。我是新来的颤振

这是mi代码。这是 Screen Products 的正文：

class Body extends StatelessWidget {
  const Body({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    ProductsController _productsController = Get.put(ProductsController());
    return Query(
      options: QueryOptions(document: getAllProductsQuery),
      builder: (result, {fetchMore, refetch}) {
        if (result.isLoading && result.data == null) {
          return Center(
            child: CircularProgressIndicator(),
          );
        }

        final List<dynamic> listProducts = result.data['productos'];
        _productsController.listProducts.value = listProducts;
        return Column(
          children: [
            SearchBox(),
            CategoryList(),
            SizedBox(height: kDefaultPadding / 2),
            Expanded(
              child: Stack(
                children: [
                  Container(
                    margin: EdgeInsets.only(top: 70),
                    decoration: BoxDecoration(
                      color: Colors.white,
                      borderRadius: BorderRadius.only(
                        topLeft: Radius.circular(40),
                        topRight: Radius.circular(40),
                      ),
                    ),
                  ),
                  Obx(() => _productsController.listProducts.value.length <= 0
                      ? Container(
                          child: Center(
                            child: Text('No found'),
                          ),
                        )
                      : RefreshIndicator(
                          onRefresh: () {
                            _productsController.itemSelected.value = 0;
                            return refetch();
                          },
                          child: ListView.builder(
                            itemCount:
                                _productsController.listProducts.value.length,
                            itemBuilder: (context, index) => ProductCard(
                              itemIndex: index,
                              product:
                                  _productsController.listProducts.value[index],
                              press: () {
                                print(_productsController
                                    .listProducts.value[index]['id']);
                                Get.to(() => DetailsScreen(), arguments: [
                                  _productsController.listProducts.value[index]
                                      ['id'],
                                  _productsController.listProducts.value[index]
                                      ['price']
                                ]);
                              },
                            ),
                          ),
                        ))
                ],
              ),
            )
          ],
        );
      },
    );
  }
}

这是屏幕历史：

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:probardispositivofisico/dashboard/screens/product/components/products_controller.dart';
import 'package:probardispositivofisico/dashboard/screens/product/products_screen.dart';
import 'package:probardispositivofisico/history/body.dart';

class HistoryScreen extends StatelessWidget {
  const HistoryScreen({Key key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          title: Text('History'),
          actions: [
            IconButton(
                icon: Icon(Icons.home),
                onPressed: () {
                  Get.to(() => ProductsScreen());
                })
          ],
        ),
        body: Body());
  }
}

标签： flutterflutter-layoutflutter-dependenciesflutter-test