The SingleChildScrollView is not scrollable

Question

This widget renders with no errors except it is not scrollable

SingleChildScrollView(
    child: Column(
      children: [
        ListView(
          shrinkWrap: true,
          children: [
            ListTile(
              title: Row(
                children: const [
                    Expanded(child: Text('text'),),
                    Expanded(child: Text('text'),),
                ],
              ),
            ),
          ],
        ),
        RapportList(), // this is not scrollable
      ],
    ),
),

Where RapportList() is a statefull widget which builds a

ListView.builder(
  shrinkWrap: true,
  itemCount: _rapports.length,
  itemBuilder: (context, index) {
    return ListTile(
      title: Row(
        children: <Widget>[
        ...

I tried to wrap the ListView.builder with SingleChildScrollView but with no result. It is still not scrollable.

Answer 1

I think you just need to add

physics: const NeverScrollableScrollPhysics(),

to your RapportList().

Here is the code I tested:

import 'package:flutter/material.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);
  final String title;
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: SingleChildScrollView(
        child: Column(
          children: <Widget>[
            ListView(
              shrinkWrap: true,
              children: <Widget>[
                ListTile(
                  title: Row(
                    children: const <Widget>[
                      Expanded(child: Text('text'),),
                      Expanded(child: Text('text'),),
                    ],
                  ),
                ),
              ],
            ),
            ListView.builder( //<--RapportList().
              physics: const NeverScrollableScrollPhysics(), //<--here
              shrinkWrap: true,
              itemCount: 100,
              itemBuilder: (context, index){
                return ListTile(
                  title: Row(
                    children: <Widget>[
                      Text("ListTile with index ${index}")
                    ],
                  ),
                );
              },
            ),
          ],
        ),
      ),
    );
  }
}

In this way, RapportList() will not be scrollable and when you try to 'scroll' one of its element, you will scroll the entire SingleChildScrollView() ;)

Answer 2

用Expanded小部件包装SingleChildScrollView

Answer 3

@override Widget build(BuildContext context) { // TODO: implement build return Scaffold(body: SingleChildScrollView( child: Column( children: <Widget>[ ListView( shrinkWrap: true, children: <Widget>[ ListTile( title: Row( children: const <Widget>[ Expanded(child: Text('text'),), Expanded(child: Text('text'),), ], ), ), ], ), SizedBox(height: 6000,), Text("...."), Container( ), ], ), ) ); } }