如何使列在颤振网中可滚动?

Question

父组件是列，列包含以下子元素:

堆栈

• 容器(孩子:行)
• ROW(CHILDREN: [gestredetector (child:Container)， gestredetector (child:Container)]
• LISTVIEW BUILDER

用expanded包装这个列，然后用singlechildScrollView。结果是错误!!

该怎么办??

Answer 1

用SinglechildScrollView包裹Column，对于ListView.builder需要设置:

physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,

在您的示例中，小部件树看起来像这样(最小可复制示例)

import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'SingleChildScrollView',
home: Scaffold(
appBar: AppBar(
title: Text('SingleChildScrollView Example'),
),
body: SingleChildScrollView(
child: Column(
children: [
Stack(
children: [
Container(
width: 50,
height: 50,
color: Colors.cyan,
),
],
),
Container(
child: Row(
children: [
GestureDetector(
child: Container(
width: 50,
height: 50,
color: Colors.green,
),
),
GestureDetector(
child: Container(
width: 50,
height: 50,
color: Colors.blue,
),
),
],
),
),
ListView.builder(
physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,
itemCount: 60,
itemBuilder: (context, index) => Text('Item # $index'),
)
],
),
)),
);
}
}

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