I am trying to achieve a very common behavior nowadays which is to have a horizontal List within another widget which is at the same time scrollable. Think something like the homescreen of the imdb app:
So I want to have a widget that scrolls vertically with few items on them. At the top of it there should be a horizontal ListView
, followed up with some items called motivationCard
. There are some headers in between the list and the cards as well.
I got something like this on my Widget
:
@override
Widget build(BuildContext context) => BlocBuilder<HomeEvent, HomeState>(
bloc: _homeBloc,
builder: (BuildContext context, HomeState state) => Scaffold(
appBar: AppBar(),
body: Column(
children: <Widget>[
Text(
Strings.dailyTasks,
),
ListView.builder(
scrollDirection: Axis.horizontal,
itemCount: tasks.length,
itemBuilder: (BuildContext context, int index) =>
taskCard(
taskNumber: index + 1,
taskTotal: tasks.length,
task: tasks[index],
),
),
Text(
Strings.motivations,
),
motivationCard(
motivation: Motivation(
title: 'Motivation 1',
description:
'this is a description of the motivation'),
),
motivationCard(
motivation: Motivation(
title: 'Motivation 2',
description:
'this is a description of the motivation'),
),
motivationCard(
motivation: Motivation(
title: 'Motivation 3',
description:
'this is a description of the motivation'),
),
],
),
),
);
this is the error I get:
I/flutter (23780): ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
I/flutter (23780): The following assertion was thrown during performResize():
I/flutter (23780): Horizontal viewport was given unbounded height.
I/flutter (23780): Viewports expand in the cross axis to fill their container and constrain their children to match
I/flutter (23780): their extent in the cross axis. In this case, a horizontal viewport was given an unlimited amount of
I/flutter (23780): vertical space in which to expand.
I have tried:
Wrapping the ListView with an Expanded
widget
Wrapping the Column with SingleChildScrollView > ConstrainedBox > IntrinsicHeight
Having CustomScrollView
as parent, with a SliverList
and the List within a SliverChildListDelegate
None of these work and I continue getting the same kind of error. This is a very common thing and shouldn't be any hard, somehow I just cannot get it work :(
Any help would be much appreciated, thanks!
Edit:
I thought this could help me but it didn't.
Well, Your Code Work Fine with wrapping your- ListView.builder
with Expanded
Widget &
setting mainAxisSize: MainAxisSize.min,
of Column
Widget.
E.x Code of what you Have.
body: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text(
'Headline',
style: TextStyle(fontSize: 18),
),
Expanded(
child: ListView.builder(
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: 15,
itemBuilder: (BuildContext context, int index) => Card(
child: Center(child: Text('Dummy Card Text')),
),
),
),
Text(
'Demo Headline 2',
style: TextStyle(fontSize: 18),
),
Expanded(
child: ListView.builder(
shrinkWrap: true,
itemBuilder: (ctx,int){
return Card(
child: ListTile(
title: Text('Motivation $int'),
subtitle: Text('this is a description of the motivation')),
);
},
),
),
],
),
Update:
Whole page Is Scroll-able with - SingleChildScrollView.
body: SingleChildScrollView(
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
Text(
'Headline',
style: TextStyle(fontSize: 18),
),
SizedBox(
height: 200.0,
child: ListView.builder(
physics: ClampingScrollPhysics(),
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: 15,
itemBuilder: (BuildContext context, int index) => Card(
child: Center(child: Text('Dummy Card Text')),
),
),
),
Text(
'Demo Headline 2',
style: TextStyle(fontSize: 18),
),
Card(
child: ListTile(title: Text('Motivation $int'), subtitle: Text('this is a description of the motivation')),
),
Card(
child: ListTile(title: Text('Motivation $int'), subtitle: Text('this is a description of the motivation')),
),
Card(
child: ListTile(title: Text('Motivation $int'), subtitle: Text('this is a description of the motivation')),
),
Card(
child: ListTile(title: Text('Motivation $int'), subtitle: Text('this is a description of the motivation')),
),
Card(
child: ListTile(title: Text('Motivation $int'), subtitle: Text('this is a description of the motivation')),
),
],
),
),