flutter - 如何在不设置Flutter中的容器高度的情况下在容器内显示ListView？

Question

在我的Flutter项目中，我使用带容器包装的ListView显示数据列表。现在，当我在未设置容器高度的情况下使用它时，显示以下错误-

RenderBox was not laid out: RenderRepaintBoundary#a418crelayoutBoundary=up16 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE'package:flutter/src/rendering/box.dart': Failed assertion: line 1687pos 12: 'hasSize'

这是我所写类(class)的整个结构，

SingleChildScrollView(
            child: Column(
              children: <Widget>[

                showTheHistory(),

                Container(
                    height: MediaQuery.of(context).size.height-ScreenUtil.instance.setWidth(260),

                    child: Padding(
                      padding:  EdgeInsets.only(left: ScreenUtil.instance.setWidth(10), right: ScreenUtil.instance.setWidth(10)),
                      child: Container(
                        color: Colors.white,
                        child: FutureBuilder<List>(
                          future: _searchList,
                          initialData: List(),
                          builder: (context, snapshot) {
                            return snapshot.hasData ?
                            new ListView.builder(
                              padding:  EdgeInsets.all(ScreenUtil.instance.setWidth(10)),
                              itemCount: snapshot.data.length,
                              itemBuilder: (context, i) {
                                return _buildRow(snapshot.data[i]);
                              },
                            )
                                : Center(
                              child: NoResultFoundScreen(),
                            );
                          },
                        ),
                      ),
                    ),
                  ),
                

                SizedBox(height: ScreenUtil.instance.setHeight(10),),

                Container(
                  width: MediaQuery.of(context).size.width,
                  child: Padding(
                    padding:  EdgeInsets.only(left: ScreenUtil.instance.setWidth(10), right: ScreenUtil.instance.setWidth(10) ),
                    child: Column(
                      children: <Widget>[
                        Card(
                          elevation: 6,
                          child: Padding(
                            padding:  EdgeInsets.all(ScreenUtil.instance.setWidth(5)),
                            child: Row(
                              children: <Widget>[
                                
                                Text('English to ${Credentials.languageType}', style: TextStyle(fontSize: ScreenUtil.instance.setSp(18), color: Colors.teal, fontWeight: FontWeight.bold),)

                              ],
                            ),
                          ),
                        ),



                        Padding(
                          padding:  EdgeInsets.only(top:ScreenUtil.instance.setWidth(10)),
                          child: Card(
                            color: Colors.white,
                            elevation: 10,

                            child: Container(

                              child: Column(
                                children: <Widget>[

                                  getHowToUseText('1. '),

                                  Padding(
                                    padding: const EdgeInsets.only(left:8.0, right: 8.0),
                                    child: Divider(height: 2, color: Colors.grey,),
                                  ),

                                  getHowToUseText('2. While typing you will get auto suggestions. You can tap on the words to see meaning'),

                                ],
                              ),
                            ),

                          ),
                        )


                      ],
                    ),
                  ),
                ),

                SizedBox(
                  height: ScreenUtil.instance.setHeight(160),
                )

              ],
            ),
          ),

因此，如您所见，这是设置为包装ListView的Container的高度。在ListView中，数据需要花费一些时间来加载，并且在那个时间段内具有固定大小的Container保持空白，这显然不好。因此，尽管需要设置Container的高度，但我仍需要一种解决方案来使Listview的高度动态变化。

Answer 1

将shrinkWrap: true属性添加到listview也会删除容器。
另外，您有很多冗余小部件。您应该考虑重构代码。您应该看看flutter.dev上的小部件文档