我想创建一个水平滚动的卡片列表,当从左侧或右侧滑动时,卡片会带有对齐效果。
每张卡片之间都有一些间距,适合屏幕,类似于下图
除此之外,这些可水平滚动的列表元素应包含在可垂直滚动的列表中。
在 Flutter 文档中遵循示例之后,我所能实现的只是显示水平滚动卡片列表。
class SnapCarousel 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),
height: 200.0,
child: ListView(
scrollDirection: Axis.horizontal,
children: <Widget>[
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,
),
],
),
),
),
);
}
}
最佳答案
使用PageView
和ListView
:
import 'package:flutter/material.dart';
main() => runApp(MaterialApp(home: MyHomePage()));
class MyHomePage extends StatelessWidget {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Carousel in vertical scrollable'),
),
body: ListView.builder(
padding: EdgeInsets.symmetric(vertical: 16.0),
itemBuilder: (BuildContext context, int index) {
if(index % 2 == 0) {
return _buildCarousel(context, index ~/ 2);
}
else {
return Divider();
}
},
),
);
}
Widget _buildCarousel(BuildContext context, int carouselIndex) {
return Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text('Carousel $carouselIndex'),
SizedBox(
// you may want to use an aspect ratio here for tablet support
height: 200.0,
child: PageView.builder(
// store this controller in a State to save the carousel scroll position
controller: PageController(viewportFraction: 0.8),
itemBuilder: (BuildContext context, int itemIndex) {
return _buildCarouselItem(context, carouselIndex, itemIndex);
},
),
)
],
);
}
Widget _buildCarouselItem(BuildContext context, int carouselIndex, int itemIndex) {
return Padding(
padding: EdgeInsets.symmetric(horizontal: 4.0),
child: Container(
decoration: BoxDecoration(
color: Colors.grey,
borderRadius: BorderRadius.all(Radius.circular(4.0)),
),
),
);
}
}
https://stackoverflow.com/questions/51607440/