I need 2 different lists in a scrollable view, so i did the following:
body:SingleChildScrollView(
physics: const ScrollPhysics(),
child: Column(
children: <Widget>[
ListView.builder(
physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,
itemBuilder: (context,index){
return Container(
padding: const EdgeInsets.all(10),
height: 75,
child: Row(
children: <Widget>[
],
),
);
}
),
ListView.builder(
physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,
itemBuilder: (context,index){
return Container(
padding: const EdgeInsets.all(10),
height: 75,
child: Row(
children: <Widget>[
],
),
);
}
),
]
),
),
If i press the button to open this ListView nothing happens and the app is frezzed.
Any idea ?
Let me know if you need more information,
Thanks
Related
I need to scroll the whole screen, i am using (single child scroll view => stack => ListView.builder). but there is no scrolling. however i am using:
shrinkWrap: true,
physics: NeverScrollableScrollPhysics(),
The Code Is:
return Scaffold(
body: LayoutBuilder(builder: (context, constraints) {
return SingleChildScrollView(
physics: BouncingScrollPhysics(),
child: Container(
height: constraints.maxHeight,
child: Stack(children: <Widget>[
Container(color: Colors.red,height: 300,),
Container(
margin: EdgeInsets.only(
top: screen.isPhone ? 150 : 240,
),
child: Column(
children: [
Card(
elevation: 5,
child: ListView.builder(
itemCount: 20,
shrinkWrap: true,
physics: NeverScrollableScrollPhysics(),
itemBuilder: (context, index) =>
ProductItemWidget(showDeleteIconButton: true),
),
),
Text("HEY"),
],
),
),
remove height: constraints.maxHeight,
In my application, I want to show two different products on the home screen, horizontally and vertically. But I want to do this with ListView.Builder as they both come as lists. I couldn't find the right usage of this, can you help with this?
SingleChildScrollView(
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
SizedBox(
height: 200.0,
child: ListView.builder(
physics: ClampingScrollPhysics(),
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: 25,
itemBuilder: (BuildContext context, int index) =>
Card(
child: Center(child: Text('Horizontal List Child')),
),
),
),
ListView.builder(
itemCount: 10,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (context, index) {
return Expanded(
child: Card(
child:
Center(child: Text('Vertical List Child'))),
);
},
)
],
),
),
I can do it without using ListView.builder but I need to use ListView.builder. The height of the vertical part should be equal to the element inside.
You must need to define the height of any scroll view. I prefer the horizontal scroll view
SingleChildScrollView(
child: Column(
children: [
Container(
height: 150,
child: ListView.builder(
physics: ClampingScrollPhysics(),
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: 25,
itemBuilder: (BuildContext context, int index) {
...
...
...
},
),
),
ListView.builder(
itemCount: 10,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (context, index) {
...
...
...
},
),
],
)
)
Remove the SingleChildScrollView.
Add an Expanded as parent to the second ListView.
Remove the Expanded from the Card
Scaffold(
body: SafeArea( //in case you dont have appbar
child: CustomScrollView(
physics: const BouncingScrollPhysics(),
slivers: [
const SliverToBoxAdaptar(child:Container(child:ListView(...)))// horizontalList
const SliverList()// verticalSliverList
],
),
),
);
try thiss
Expanded makes item inside becomes full body.
just remove it and the height to make item height equals to card
return Scaffold(
appBar: AppBar(
title: Text("Sample"),
),
body: Center(
// Center is a layout widget. It takes a single child and positions it
// in the middle of the parent.
child: SingleChildScrollView(
physics: ScrollPhysics(),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Padding(
padding: const EdgeInsets.all(8.0),
child: Text("Sample 1"),
),
Container(
height: 100,
child: ListView.builder(
physics: ScrollPhysics(),
itemCount: 5,
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemBuilder: (context, index) {
return Card(
child: Image.network("https://i.picsum.photos/id/9/250/250.jpg?hmac=tqDH5wEWHDN76mBIWEPzg1in6egMl49qZeguSaH9_VI",),
);
}
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Text("Sample 2"),
),
ListView.builder(
physics: ScrollPhysics(),
itemCount: 5,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (context, index) {
return Card(
child: Image.network("https://i.picsum.photos/id/9/250/250.jpg?hmac=tqDH5wEWHDN76mBIWEPzg1in6egMl49qZeguSaH9_VI"),
);
}
),
],
),
),
),
);
I need to use 3 horizontal ListView in the SingleChildScrollView widget. But nothing is displayed. I use these codes for one of ListViews:
Scaffold(
body: new SingleChildScrollView(
primary: true,
child: new Column(
mainAxisSize: MainAxisSize.min,
children: [
new ListView.builder(
primary: false,
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
itemCount: _categoryModel.length,
scrollDirection: Axis.horizontal,
itemBuilder: (context, index) => new Card(
child: new Center(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 16),
child: new Text(_categoryModel[index].title),
),
),
))
],
),
))
How can I fix this error without using the container with a height?
try wrapping your ListView with Expanded
Use Wrap widget instead of ListView.
Use This :
Scaffold(
body: new SingleChildScrollView(
child: new Container(
child: new ListView.builder(
primary: false,
shrinkWrap: true,
physics: const NeverScrollableScrollPhysics(),
itemCount: _categoryModel.length,
scrollDirection: Axis.horizontal,
itemBuilder: (context, index) => new Card(
child: new Center(
child: Padding(
padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 16),
child: new Text(_categoryModel[index].title),
),
),
))
),
))
I cannot figure out how to create a Scrolling Wrap Widget inside my app that displays a number of items over 2 lines and is scrollable Horizontally to reveal the lines content:
return
SafeArea(
child: SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: Wrap(
direction: Axis.horizontal,
runAlignment: WrapAlignment.center,
children:[
for (var i=0;i<10;i++) Card(
elevation: 6,
color: Colors.primaries[Random().nextInt(Colors.primaries.length)],
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Text(title,),
),
),
]
),
),
);
The result for this is :
I tired to wrap the Wrap with a Container with fixed height and every other combination imaginable and have not found a way to do this correctly, Basically I want to achieve a grid like functionality where the children are not all constrained to a fixed sized cell but are maintaining their variable width .
Expected result as requested would be a scroll-able list that looks like this:
This Answer Will Help You.
List<String> list = ['Long text', 'Even longer text', 'Long text', 'Even longer text', 'Text', 'Text', 'Short text', 'Text', 'Short text', 'Long text', 'Even longer text'];
SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
SizedBox(
height: 50,
child: ListView.builder(
physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: list.length,
itemBuilder: (context, index) {
return index.isEven ? CardWidget(list[index]) : Container();
},
),
),
SizedBox(
height: 50,
child: ListView.builder(
physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: list.length,
itemBuilder: (context, index) {
return index.isOdd ? CardWidget(list[index]) : Container();
},
),
)
],
),
)
I refer from this solution.
Output like this
I was have similar problem and I fixed with constrained box. And can you try this;
return SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: ConstrainedBox(
constraints: BoxConstraints(
maxHeight: MediaQuery.of(context).size.height * 0.25,
maxWidth: MediaQuery.of(context).size.width * 1.5,
),
child: Wrap(
direction: Axis.horizontal,
crossAxisAlignment: WrapCrossAlignment.end,
alignment: WrapAlignment.start,
spacing: 10,
runSpacing: 2,
children: List.generate(
myList.length,
(index) {
return ChoiceChip(
onSelected: (bool isSelected) {
//when selected it works code
},
label: SizedBox(
height: 20,
child: Text(name),
),
selected: false);
},
).toList(),
),
),
);
I am trying to wrap some list items in an Expansion panel But the contents are overflowing.
ExpansionTile(
title: Text('Client'),
children: <Widget>[
ListView(
scrollDirection: Axis.vertical,
shrinkWrap: true,
children: <Widget>[
ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount: upComingCompliancesList.length,
itemBuilder: (BuildContext context,int index){
return Container(
margin: EdgeInsets.symmetric(vertical: 10.0),
color: buttonColor,
child: ListTile(
title: Text(upComingCompliancesList[index].name==null? upComingCompliancesList[index].name==null : ' '),
subtitle: Text(
'${upComingCompliancesList[index].label} at ${upComingCompliancesList[index].date}'),
),
);
},
),
],
),
],
),
It is showing the following error:
The following assertion was thrown during layout:
A RenderFlex overflowed by 277 pixels on the bottom.
the following error is shown on the screen:
Try wrapping your ExpansionTile in a scrollable Widget to compensate for its content when the ExpansionTile is in an expanded state. Use 'SingleChildScrollView' like so:
SingleChildScrollView(
child: ExpansionTile(
title: Text('Client'),
children: <Widget>[
ListView(
scrollDirection: Axis.vertical,
shrinkWrap: true,
children: <Widget>[
ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount: upComingCompliancesList.length,
itemBuilder: (BuildContext context,int index){
return Container(
margin: EdgeInsets.symmetric(vertical: 10.0),
color: buttonColor,
child: ListTile(
title: Text(upComingCompliancesList[index].name==null? upComingCompliancesList[index].name==null : ' '),
subtitle: Text(
'${upComingCompliancesList[index].label} at ${upComingCompliancesList[index].date}'),
),
);
},
),
],
),
],
),
),