flutter - RenderIndexedSemantics 对象在布局期间被赋予了无限大小。当我使用脚手架楔形

Question

当我在容器小部件中使用 Scaffold 时，会发生此错误 RenderIndexedSemantics 对象在布局期间被赋予了无限大小。这可能意味着它是一个试图尽可能大的渲染对象，但它被放在另一个渲染对象中，允许其子级选择自己的大小。提供无界高度约束的最近祖先是：RenderIndexedSemantics#c08ed relayoutBoundary=up16 NEEDS-LAYOUT NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE ...需要合成... parentData: index=0; layoutOffset=0.0（可以使用size）...约束：BoxConstraints(w=296.0,0.0<=h<=Infinity)...语义边界...size:Size(296.0,Infinity)...index:0应用于 RenderIndexedSemantics 的约束是： BoxConstraints(w=296.0, 0.0<=h<=Infinity) 它给出的确切大小是：

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

import '../catalog.dart';
import '../theme.dart';
import 'HomeExtended_Page.dart';
class modelLlist extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return ListView.builder(
        shrinkWrap: true,
        itemCount: Model.product.length,
        itemBuilder: (context,index){
          final catalog=Model.product[index];
          return InkWell(
            onTap: ()=>Navigator.push(context, MaterialPageRoute(builder: (context) =>HomeExtend(catalog:catalog),
            ),
            ),
              child: catlogitem(catalog:catalog));
        });
  }
}
class catlogitem extends StatelessWidget {
  @override
  final item catalog;

  const catlogitem({Key? key, required this.catalog}) :
        assert(catalog!=null),
        super(key: key);
  Widget build(BuildContext context) {
    return Scaffold(

      body: Container(
height: 130,

        child:  Card(
          shape: RoundedRectangleBorder(
            borderRadius: BorderRadius.circular(10),
          ),
          color: Colors.white,
          elevation: 0,
          child: Row(

            children: [
              Hero(
                tag: Key(catalog.id),
                  child: catalogimage(image:catalog.imageurl)),
              SizedBox(
                width: 10 ,
              ),
              Column(
                crossAxisAlignment: CrossAxisAlignment.baseline,
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                textBaseline: TextBaseline.alphabetic,
                children: [
                  Text(catalog.name,style: TextStyle(
                    fontSize: 16,
                    fontWeight: FontWeight.w800,

                  ),
                  ),
                  /*SizedBox(
                       height: 10 ,
                     ),*/
                  //Padding(padding: EdgeInsets.only(top:   8.0),),
                  Text(catalog.dec,style: TextStyle(
                    fontSize: 10,
                  ),
                  ),
                  ButtonBar(
                    alignment: MainAxisAlignment.spaceBetween,
                    buttonPadding: EdgeInsets.zero,
                    children: [
                      Text("\$"+catalog.price.toString(),style: GoogleFonts.bebasNeue(
                        textStyle:TextStyle(
                          fontWeight: FontWeight.bold,
                          fontSize: 15,
                        ),),),
                      SizedBox(
                        width: 80,
                      ),
                      ElevatedButton(onPressed: (){},
                        style: ButtonStyle(
                          backgroundColor: MaterialStateProperty.all(MyTheme.black),
                          shape: MaterialStateProperty.all(StadiumBorder(),
                          ),
                        ),
                        child: Text("Buy"),
                      ),
                    ],
                  )
                ],
              )
            ],
          ),
        ),

      ),
    );
  }
}
class catalogimage extends StatelessWidget {
  final String image;

  const catalogimage({Key? key, required this.image}) : assert(image!=null),super(key: key);
  @override
  Widget build(BuildContext context) {
    return Container(

      padding: EdgeInsets.symmetric(horizontal: 0.0),

      height:80,
      width: 80,
      decoration: BoxDecoration(
        borderRadius: BorderRadius.all(Radius.circular(16.0)),
      ),
      child: new Image.asset(image),

    );
  }
}

标签： flutter