I want to add a listview in Card widget. It works when scroll vertically, but not when scroll horizontally. How can I fix it? It is in Sizedbox. I tried flexible and expanded but doesnt work.
return Scaffold(
appBar: appBar(),
body: Padding(
padding: const EdgeInsets.only(top: 5, left: 8, right: 5),
child: Column(
children: [
Card(
elevation: 0,
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
SizedBox(
height: 100,
width: 110,
child: SingleChildScrollView(
scrollDirection: Axis.vertical,
child: ListView.builder(
shrinkWrap: true,
physics: const BouncingScrollPhysics(),
itemCount: 5,
itemBuilder: (BuildContext context, int index) {
return ListTile(
title: TextButton(onPressed: () {}, child: Text(brandName[index])),
);
},),),)],),),],),),);
Do this instead:
/*...*/
SizedBox(
height: 100,
width: 110,
child: ListView.builder(
scrollDirection: Axis.horizontal,
shrinkWrap: true,
physics: const BouncingScrollPhysics(),
itemCount: 5,
itemBuilder: (BuildContext context, int index) {
return SizedBox(
width: // set a value,
child: ListTile(
// for suggestion you don't need `TextButton` here
// just do `title: Text(brandName[index])` and use the `onTap` function of `ListTile` instead
title: TextButton(
onPressed: () {},
child: Text(brandName[index])
)
),
);
},
),
)
/*...*/
Wrap your ListTile with SizedBox() and explicitly specify the width of ListTile.
eg. SizedBox (width: 100, LisTile(...))
For better understanding refer this answer.
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,
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 can't scroll to see my lower grid view. Why is that? What should I change to make this work? Please help!!!
Thank you in advance.
Scaffold(
body: SingleChildScrollView(
child: Container(
child: Column(
children: <Widget>[
Text('GridView 1'),
GridView.count(
crossAxisCount: 3,
shrinkWrap: true,
children: List.generate(
9,
(index) {
return TouchableImageCard(
imagePath: 'assets/images/view_${index + 1}.jpg',
);
},
),
),
Text('GridView 2'),
GridView.builder(
itemCount: list_item.length,
shrinkWrap: true,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 3),
itemBuilder: (BuildContext context, int index) {
return TouchableImageCard(
imagePath: 'assets/images/view_${index + 1}.jpg',
// width: 150,
// height: 150,
);
},
),
],
),
),
),
);
Thank you for helping me in flutter.
It actually does work, just not the way you need it.
The problem is that GridView itself is a scrollable widget too. So when you try to scroll the page, it actually tries to scroll those GridViews and not the SingleChildScrollView.
To disable GridView scrolling ability - you need to add one more parameter.
GridView.count(
physics: NeverScrollableScrollPhysics(),
...
),
Try this:
Center(
child: SingleChildScrollView(
padding: const EdgeInsets.all(8.0),
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[]
multiple gridview scrollable
Scaffold(
body: SingleChildScrollView(
child: Column(
children: <Widget>[
Text('GridView 1'),
Container(
height: 400,
child: GridView.count(
crossAxisCount: 3,
shrinkWrap: true,
primary: false,
children: List.generate(
20,
(index) {
return TouchableImageCard(
imagePath: 'assets/images/view_${index + 1}.jpg',
);
},
),
),
),
Text('GridView 2'),
Container(
height: 400,
child: GridView.builder(
itemCount: 20,
shrinkWrap: true,
gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 3),
itemBuilder: (BuildContext context, int index) {
return TouchableImageCard(
imagePath: 'assets/images/view_${index + 1}.jpg',
// width: 150,
// height: 150,
);
},
),
),
],
),
),
);
Below is my code, I want to add some extra space of height 50, which comes at the end of list item. because when my second child of stack appears it nearly overlaps the last item of list view. I've tried wrapping ListView.builder with column and added a container at last but destroyed my whole structure. for this scenario I've to wrap the column into Single scrollable which pushed stack 2nd widget to be at the end of ListItem.(But I don't want Stack 2nd object to be scrollable).
As you can see I'm not able to click on HotDog.
body: Stack(
children: <Widget>[
ListView.builder(
itemCount: itemData.length,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (BuildContext context,int index){
return Text(data[index].name);
}
),
Padding(
padding: const EdgeInsets.all(10.0),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(8),
color: Colors.cyan
),
padding: EdgeInsets.all(10),
height: 60,
),
)
],
),
How about you add empty last item like below code?
ListView.builder(
itemCount: itemData.length + 1,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (BuildContext context,int index){
if (index == item.Data.length) {
return SizedBox(height: 50);
} else {
return Text(data[index].name);
}
}
),
ListViewBuilder should be wrap inside Expanded widget which will take fullscreen
and give container bottom width as per need.
Example:
var itemData = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
Stack(
children: <Widget>[
Column(
children: <Widget>[
Expanded(
child: Container(
margin: EdgeInsets.only(bottom: 20),
child: ListView.builder(
itemCount: itemData.length,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (BuildContext context, int index) {
return Container(
height: 80,
child: Text("Text :" + index.toString()));
}),
),
),
Align(
alignment: Alignment.bottomCenter,
child: Padding(
padding: const EdgeInsets.all(10.0),
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(8),
color: Colors.cyan),
padding: EdgeInsets.all(10),
height: 60,
),
),
)
],
),
],
),
Output:
This can be easily done by adding bottom padding in listview.builder
Expanded(
child: ListView.builder(
padding: EdgeInsets.only(bottom: 100), //Increase this as per your requirment
itemCount: 5,
itemBuilder: (cxt , idx) {
return YourWidget();
}
Since you're listview.builder is inside a stack, you simply use the Positioned widget for this. Simply wrap your listview with Positioned like below:
Positioned(
bottom:50, //adjust this since this is the padding inside the stack
child:Container(
width:MediaQuery.of(context).size.width //width of the whole phone
child: ListView.builder(
itemCount: itemData.length,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (BuildContext context,int index){
return Text(data[index].name);
}
),
),
),
To ensure your Container stays at the bottom wrap it with a positioned widget and set the bottom property to 0:
Positioned(
bottom:0, //adjust this since this is the padding inside the stack
child:Container(),
),
Here is a one minute clip showing how to use the Positioned widget: https://www.youtube.com/watch?v=EgtPleVwxBQ
There is no specific way to do it by default you have to do it manually with own logic
ListView.builder(
itemCount: itemData.length,
shrinkWrap: true,
scrollDirection: Axis.vertical,
itemBuilder: (BuildContext context,int index){
if(index == itemData.length - 1 )
return Padding(
padding: EdgeInsets.only(bottom : 50),
child : Text(data[index].name)
);
return Text(data[index].name);
}),
I have tried to return a list of widgets in horizontal direction, i want to expand widgets width dynamically. how can i achieve this. (Note: ListView.builder placed inside column)
ListView.builder(
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: widget.playType.length,
itemBuilder: (BuildContext context, int index) {
return Flex(
direction: Axis.horizontal,
children: <Widget>[
Flexible(
child: InkWell(
onTap: () {},
child: Container(
padding: EdgeInsets.only(left: 10, right: 10),
color: colorSubMenuBg,
height: 45,
child: Align(
alignment: Alignment.center,
child: Text(
widget.playType[index],
style: CustomTextStyle.listTile4(context),
),
),
),
),
),
],
);
});
Expected output should be like this highlighted part:
Wrap Container( height: 70)in your ListViewBuilder()
like this
Container(
height: 70,
child: ListView.builder(
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: widget.playType.length,
itemBuilder: (BuildContext context, int index) {
return Flex(
direction: Axis.horizontal,
children: <Widget>[
Flexible(
child: InkWell(
onTap: () {},
child: Container(
padding: EdgeInsets.only(left: 10, right: 10),
color: colorSubMenuBg,
height: 45,
child: Align(
alignment: Alignment.center,
child: Text(
widget.playType[index],
style: CustomTextStyle.listTile4(context),
),
),
),
),
),
],
);
}),
);```
Actual working code, i removed flex from ListView.builder and added width for ListItems and ListView.
var buttonListWidth = MediaQuery.of(context).size.width;
Container(
height: 45,
width: buttonListWidth,
child: ListView.builder(
physics: NeverScrollableScrollPhysics(),
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemCount: widget.playType.length,
itemBuilder: (BuildContext context, int index) {
return InkWell(
onTap: () {
setState(() {});
},
child: Container(
color: colorSubMenuBg,
height: 45,
width: buttonListWidth / widget.playType.length,
child: Align(
alignment: Alignment.center,
child: Text(
widget.playType[index],
style: CustomTextStyle.listTile4(context),
),
),
),
);
}))
Try adding a Row over the ListView.builder and add mainAxisSize: MainAxisSize.min, property to that Row.
ItemExtent property of ListView.builder
itemExtent: MediaQuery.of(context).size.height / LENGHT,