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}'),
),
);
},
),
],
),
],
),
),
Related
I need scrolling but not scrolling. at this moment, some data/item show but maximum data has been hide. so how to overcome/scrolling the all data items.
I need scrolling but not scrolling. at this moment, some data/item show but maximum data has been hide. so how to overcome/scrolling the all data items.
I need scrolling but not scrolling. at this moment, some data/item show but maximum data has been hide. so how to overcome/scrolling the all data items.
my source code below :
body:
ListView(
children: [
ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount: _mOfferListRemoveDuplicate == null ? 0 : _mOfferListRemoveDuplicate.length,
// itemCount: _mOfferList == null ? 0 : _mOfferList.length,
itemBuilder: (BuildContext context, index) {
return Card(
margin: EdgeInsets.all(5.0),
elevation: 1,
child: SizedBox(
height: 100,
child: ListView(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
_mOfferListRemoveDuplicate[index],
textAlign: TextAlign.left,
style: TextStyle(fontSize: 4.0, color: Colors.green,),
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: ListView.builder(
scrollDirection: Axis.vertical,
shrinkWrap: true,
itemCount:
_mOfferList == null ? 0 : _mOfferList.length,
itemBuilder: (BuildContext context, index) {
return Column(
children: [
Text("" + _mOfferList[index].offerTitle,style: TextStyle(fontSize: 5.0),)
],
);
}),
),
],
),
));
}),
],
));
in each listview and listview.builder (expect first one) use this code :
physics: ScrollPhysics(),
shrinkWrap: true,
it must work
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 have a nested ItemList that is made as follows:
SafeArea(
child: ListView(
padding: EdgeInsets.zero,
children: <Widget>[
ListTile(
title: Text('Placeholder'),
),
ListView.builder(
shrinkWrap: true,
itemCount: itemList.length,
itemBuilder: (BuildContext context, int index) {
final itemData = itemList[index];
return Card(
child: ListTile(
title: Container(
width: MediaQuery.of(context).size.width,
child: Text(
itemData.text,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: Theme.of(context).textTheme.headline5,
),
),
),
);
},
),
],
),
),
I can scroll up and down when holding the items directly placed in the first list, doing so also moves the items from the nested list. (wanted behavior)
When holding items in the sublist (the one with the builder), nothing moves anywhere.
I want to make so that all items move when any of them are held to scroll, how can I do that?
Is there a way to build a list without ListView.builder or did I miss some ListView parameters?
You could use the physics parameter of Listview to achive the intended result.
SafeArea(
child: ListView(
physics: AlwaysScrollableScrollPhysics(), // add this
padding: EdgeInsets.zero,
children: <Widget>[
ListTile(
title: Text('Placeholder'),
),
ListView.builder(
physics: NeverScrollableScrollPhysics(), // and this
shrinkWrap: true,
itemCount: itemList.length,
itemBuilder: (BuildContext context, int index) {
final itemData = itemList[index];
return Card(
child: ListTile(
title: Container(
width: MediaQuery.of(context).size.width,
child: Text(
itemData.text,
maxLines: 1,
overflow: TextOverflow.ellipsis,
style: Theme.of(context).textTheme.headline5,
),
),
),
);
},
),
],
),
)
Now your list should be scrollable.