如何让手风琴面板在flutter中显示？

Question

我正试图得到一个工作的手风琴面板，我发现在研究如何使一个，得到小部件版本。但是，当我把代码加进去后，正文中的其他东西都看不见了，显示的都是appbars。我知道具体是我这部分代码的问题，因为如果我把它拿出来，其他的东西都会再一次显示出来。如果有其他简单易懂的方法，我很想知道。GF手风琴一拿出来，其他的东西都会显示出来，这是应该的。是的，我确保支持GF Accordion的包已经被导入，并按规定添加到pubspec.yaml文件中。

Row(
          children: <Widget>[
            Container(
              decoration: new BoxDecoration(
                border: new BorderDirectional(
                  bottom: new BorderSide(
                      color: Color.fromRGBO(112, 112, 112, 0.25),
                      style: BorderStyle.solid
                  ),
                ),
              ),
              child: Column(
                children: <Widget>[
                  new GFAccordion(
                      title: 'Requirements',
                      contentChild: Text('No requirements. Just bring yourself! Paint and brushes will be provided.'),
                      collapsedIcon: Icon(Icons.add),
                      expandedIcon: Icon(Icons.minimize),
                  ),
                ],
              ),
            ),
          ],
        ),

Answer 1

你可以复制粘贴运行完整的代码，下面你可以设置 Container width 以控制 width 的 GFAccordion 代码段

 Container(
        width: 400,

工作示范

全码

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

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      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> {
  int _counter = 0;

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          Container(
            width: 400,
            decoration: BoxDecoration(
              border: BorderDirectional(
                bottom: BorderSide(
                    color: Color.fromRGBO(112, 112, 112, 0.25),
                    style: BorderStyle.solid),
              ),
            ),
            child: Column(
              children: <Widget>[
                GFAccordion(
                  title: 'Requirements',
                  contentChild: Text(
                      'No requirements. Just bring yourself! Paint and brushes will be provided.'),
                  collapsedIcon: Icon(Icons.add),
                  expandedIcon: Icon(Icons.minimize),
                ),
              ],
            ),
          ),
        ],
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}