我不知道如何在列表中的第一个Container中减小FAB的大小。无论我尝试什么,它似乎都想占用整个容器。香港专业教育学院甚至尝试了一个容器中的一个容器。整个橙色区域是可单击的。我尝试了SizedBox,结果相同。这是代码。
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
final title = 'Horizontal List';
return MaterialApp(
title: title,
home: Scaffold(
appBar: AppBar(
title: Text(title),
),
body: Container(
margin: EdgeInsets.symmetric(vertical: 20.0),
padding: EdgeInsets.all(30),
height: 200.0,
child: ListView(
scrollDirection: Axis.horizontal,
children: <Widget>[
Container(
width: 160,
color: Colors.yellowAccent,
child: SizedBox(
height: 50,
width: 50,
child: FittedBox(
child: FloatingActionButton(
backgroundColor: Colors.deepOrange,
foregroundColor: Colors.indigo,
child: Icon(Icons.add, size: 20),
onPressed: () {},
),
),
),
),
Container(
width: 160.0,
color: Colors.red,
),
Container(
width: 160.0,
color: Colors.blue,
),
Container(
width: 160.0,
color: Colors.green,
),
Container(
width: 160.0,
color: Colors.yellow,
),
Container(
width: 160.0,
color: Colors.orange,
),
],
),
),
),
);
}
}
答案 0 :(得分:1)
我有2个样本。并且,请参考Basic Widgets了解更多详情。
child: SizedBox(
height: 50,
width: 50,
child: Container(
margin: EdgeInsets.only(left:80.0, top:80.0, bottom: 10.0) ,
child: FloatingActionButton(
backgroundColor: Colors.deepOrange,
foregroundColor: Colors.indigo,
child: Icon(Icons.add),
onPressed: () {},
),
),
),
child: SizedBox(
height: 50,
width: 50,
child: Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[ FloatingActionButton(
backgroundColor: Colors.deepOrange,
foregroundColor: Colors.indigo,
child: Icon(Icons.add),
onPressed: () {},
),
]),
),