Hi good evening everyone. I am trying to use expanded in my rich text but unable to achieve. My main problem is that widget get overflow on different screen size so I need a way of how to achieve expanded since expanded will help text to fit according to sizer of the screen
code :
Container(
width: double.maxFinite,
height: 100,
margin: const EdgeInsets.only(left: 150,top: 50),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
"Watch your playlist",
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: color.AppColor.homePageDetails
),
),
SizedBox(height: 10,),//56:39
RichText(
text: TextSpan(
text: "stream up\n",
style:TextStyle(
color: color.AppColor.homePagePlanColor,
fontSize: 16
),
children: [
TextSpan(
text:"check out your favourite"
)
]
),
),
],
),
)
I have had the same problem a long time ago, one solution for this, is to use Flexible Widget inside a Row:
Row(
children: [
Flexible(
child: RichText(
text: const TextSpan(
text: "stream up\n",
color: color.AppColor.homePagePlanColor,
style: TextStyle(fontSize: 16),
children: [
TextSpan(text: "check out your favourite")
]),
),
),
],
),
Make sure to use const to avoid performance issues as well.
you can use this package = flutter_screenutil
it proportions all the application content for different screen sizes
The overflow issue is coming from Container's height. You can simply remove height from Container , It will work fine without any issue
Container(
width: double.maxFinite,
margin: const EdgeInsets.only(left: 150, top: 50),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Note: left padding 150 taking 150px on left, and "stream up\n" => \n creating newline. default it will take as much size at it is needed
Expanded(
child: SingleChildScrollView(
scrollDirection: Axis.horizontal,
child: RichText(
text: TextSpan(
worked for me
Related
In the above code I used Sized Box Widget but it didn't gives me anything?
How can I add space in it?
Android Emulator Images
Padding(padding: EdgeInsetsDirectional.fromSTEB(24, 4, 24, 0),
child:
Row(mainAxisSize: MainAxisSize.max,
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(
'Discount',
style: AppTheme.of(context).subtitle2,
),
SizedBox(height: 20,),
Text(
'₹ ${Provider.of<Cart>(context,listen:false).discountPrice}',
style: AppTheme.of(context).subtitle1,
),
],
),
),
wrap with container/sizebox and add in row mainAxisAlignment: MainAxisAlignment.spaceAround
Using TextSpan() widget is better than instead of Row(). Like that.
RichText(
text: TextSpan(
children: [
TextSpan(text: 'Discount',style: AppTheme.of(context).subtitle2,),
WidgetSpan(
child: SizedBox(
width: 20, // your of space
),),
TextSpan(text: "${Provider.of<Cart(context,listen:false).discountPrice}",
style: AppTheme.of(context).subtitle1,),
],
),),
Edit: but I think in your question your code and your screen shoot is different. Please ask clearly. ** My answer is to space between horizontal text widget. **
That's a quite good approach to use SizedBox in this case, but you need to set width instead of height.
I am new in flutter and I'm trying to implement screen like this:
As you can see I need to make something like a table. I ran into a problem while implementing table rows. Here is my code:
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Flexible(
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Text("2.", ),
const SizedBox(width: 10),
Text(text: "This is second with very long text"),
],
),
),
const SizedBox(width: 8),
Text("500"),
],
),
But I'm getting the error:
A RenderFlex overflowed by 42 pixels on the right.
For some reason my text ("This is second with very long text") doesn't move to a new line, but goes off screen.
Please tell me what am I doing wrong?
You have to wrap your Text("This is second with very long text") widget inside Flexible widget like this:
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Flexible(
child: Row(
mainAxisSize: MainAxisSize.min,
children: [
Text("2."),
const SizedBox(width: 10),
Flexible(
child: Text("This is second with very long text"),
),
],
),
),
const SizedBox(width: 8),
Text("500"),
],
),
Just use a ListTile for that.
ListTile(
leading: Text("2. "),
title: Text("This is second with very long text"),
trailing: Text("500"),
)
This is much simpler to implement and handles long text automatically.
You can set padding etc as you wish. You can find more information about list tiles in the official documentation.
you need a Column, to wrap the widgets inside, inside the column you need a first Row that will hold the first and second,
then a HorizontalLine, and then the rest of the rows:
Please, see the example below
Container(
padding: EdgeInsets.all(10),
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
//first row:
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text('First', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
Text('Second', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
]
),
//This SizedBox gives space between widgets
SizedBox(height:5),
Container(color: Colors.black, height: 2, width: double.infinity),
//This SizedBox gives space between widgets
SizedBox(height:5),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text('1', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
//In order to make the Text multi-lined you need to wrap-it into a SizedBox widget
SizeddBox(
//as I can see, the middle text widget is almost the 70% of the total width
//You can get the total width from MediaQuery.of(context).size.width
width: MediaQuery.of(context).size.width * 0.7,
child: Text('This is first', style: TextStyle(color: Colors.black)),
),
Text('500', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
]
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text('2', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
//In order to make the Text multi-lined you need to wrap-it into a SizedBox widget
SizeddBox(
//as I can see, the middle text widget is almost the 70% of the total width
//You can get the total width from MediaQuery.of(context).size.width
width: MediaQuery.of(context).size.width * 0.7,
child: Text('This is second with a very long text', style: TextStyle(color: Colors.black)),
),
Text('12', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
]
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text('3', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
//In order to make the Text multi-lined you need to wrap-it into a SizedBox widget
SizeddBox(
//as I can see, the middle text widget is almost the 70% of the total width
//You can get the total width from MediaQuery.of(context).size.width
width: MediaQuery.of(context).size.width * 0.7,
child: Text('This is third with a long text too', style: TextStyle(color: Colors.black)),
),
Text('150', style: TextStyle(color: Colors.black, fontWeight: FontWeight.bold)),
]
),
]
)
In this code, you can change the styling and etc as you wish.
I would suggest you to extract the the Row widget that holds the number, the text and the score in a Stateless widget, or in a method that returns Widget object, but it's very soon for this.
I hope I helped you.
Enjoy Flutter!
I'm building a product detail page. As the following piece of code and image shown, when there is a lot of content in the description part, the bottom overflow will occur. I'm wondering how to make the page scrollable, I've tried wrapping the Stack with SingleChildScrollView, but this is definitely not working in my case here. Can anyone help me with that? Thank you very much!!!!!
class DetailsScreen extends StatelessWidget {
#override
Widget build(BuildContext context) {
final size = MediaQuery.of(context).size;
return Scaffold(
backgroundColor: Colors.white,
body: Stack(
children: [
buildBody("path/to/image", size),
],
),
);
}
Positioned buildBody(String imagePath, Size size) {
return Positioned.fill(
child: Column(
children: [
Expanded(
child: Container(
padding: EdgeInsets.symmetric(vertical: 60, horizontal: 30),
color: Colors.green,
child: Stack(
children: [
Align(
alignment: Alignment.center,
child: Hero(
tag: 1,
child: Image.asset(
imagePath,
width: size.width * 0.7,
),
),
),
],
),
),
),
Expanded(
child: Container(
color: Colors.white,
child: Column(
children: [
SizedBox(
height: 100,
),
Container(
margin: EdgeInsets.symmetric(
horizontal: 20,
),
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
CircleAvatar(),
SizedBox(
width: 10,
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'Anvesha Shandilya',
style: TextStyle(
fontWeight: FontWeight.bold, fontSize: 16),
),
Text(
'Owner',
style: TextStyle(
color: fadedBlack,
),
),
],
),
Expanded(child: Container()),
Text(
'Dec 16, 2020',
style: TextStyle(
color: fadedBlack,
fontSize: 12,
),
),
],
),
),
SizedBox(
height: 30,
),
Container(
margin: EdgeInsets.symmetric(
horizontal: 20,
),
child: Text(
'A lot of content..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................',
style: TextStyle(
color: fadedBlack,
height: 1.7,
),
),
),
],
),
),
),
],
),
);
}
}
Error: Bottom Overflowed
To reproduce: Change the path/to/image, to this: A image can be used with the code:
tl;dr remove Expanded widgets -> remove Stack -> replace Column with ListView (for scrollability)
Start by removing Expanded widgets from the tree as you don't really need them. If possible, you should use mainAxisAlignment and crossAxisAlignment to position your widgets. That's exactly how you should handle placing the date next to user's name.
Expanded documentation states with which widgets you can use it:
Creates a widget that expands a child of a Row, Column, or Flex so
that the child fills the available space along the flex widget's main
axis.
Then remove Stack widget. If you don't then it will still work as Stack tries to get as big as its positioned children so it will just get as big as the Column you have inside. It's redundant.
Last but not least, replace Column with ListView. Column doesn't really care about whether it's overflowing or if it's being rendered. So if you create a Column that is bigger than the screen, it will simply display it which will cause the overflow. To fix that you could wrap it SingleChildScrollView, but I think it's more appropriate to just use ListView instead.
Here's an amazing explanation of layout system in Flutter: https://flutter.dev/docs/development/ui/layout/constraints
I'm trying to get my app polished and noticed an issue with the SliverChildList I'm using. When the Text inside is too long to be displayed I get an expection thrown.
How am I able to correctly wrap the Text (not cut)
As in my example most of the entries work just fine. For the elements that overflow I'd like to break the text to the next line and adapt the list element height.
Something simular to:
{ } Colombian White-Faced Capuchin
{ image } Monkey
{ } Cebus capucinus
I tried adding overflow: TextOverflow.ellipsis to the text element but it doesn't appear to work the way I'd like it to.
Code:
SliverList(
delegate: SliverChildListDelegate(
[
for (var animal in response)
GestureDetector(
onTap: () {
print('(DEBUG) Pressed on ${animal['id']} (${animal['name']})');
},
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(left: 10),
child: Image.network(
animal['image_url'],
fit: BoxFit.cover,
width: 75,
height: 50,
),
),
Padding(
padding: const EdgeInsets.fromLTRB(15, 10, 20, 10),
child: Container(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(animal['name'].toString(),
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold),
overflow: TextOverflow.ellipsis),
if (animal['latin_name'] != null)
Text(animal['latin_name'].toString(),
style: TextStyle(
fontStyle: FontStyle.italic)),
],
),
),
),
],
)),
],
),
)
Try wrapping your Text widget in a Flexible or Expanded widget.
I need a Container with some text in to auto expand. I have an API call, which can be anything from 5 words to 500 words. I don't want to just have 1 fixed size that's huge, but contains 10 words.
I have tried Expanded() and SizedBox.Expand(), but I might be using them wrong
Card(
elevation: defaultTargetPlatform ==
TargetPlatform.android ? 5.0 : 0.0,
child: Column(
children: <Widget>[
Container(
margin: const EdgeInsets.all(0.0),
padding: const EdgeInsets.all(2.0),
decoration: BoxDecoration(color: Colors.black),
width: _screenSize.width,
height: 250,
child: Column(
children: <Widget>[
Container(
color: Colors.black,
width: _screenSize.width,
height: 35,
child: Padding(
padding: const EdgeInsets.only(
left: 15, top: 11),
child: Text("Title".toUpperCase(),
style: TextStyle(
color: Colors.white
),
),
),
),
Container(
color: Colors.white,
width: _screenSize.width,
height: 210,
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Padding(
padding: const EdgeInsets.only(top: 8, bottom: 5),
child: Text("Title of expanding text", style: TextStyle(
fontSize: 25,
),
),
),
Text("Expanding text", style: TextStyle(
fontSize: 35,
fontWeight: FontWeight.w800
),),
],
),
),
],
),
),
],
),
),
I just need the Container to expand, but stay small/get bigger
Have you tried not specifying height at all? The Container should wrap according to the child in this case.
Otherwise, the widget has a child but no height, no width, no
constraints, and no alignment, and the Container passes the
constraints from the parent to the child and sizes itself to match the
child.
Above is an extract from the official flutter documentation for Container.
Here is the official flutter documentation link.
You can use FittedBox, this will resize your text according to available area.
You can use it like this :
FittedBox(child: Text('...............Your text...............'));
I would suggest you to use Constraints...this will set Container height according to the Text child's requirement. Please see the example...
Container(
constraints: BoxConstraints(
maxHeight: double.infinity,
),
child: Column(
children: [
Text(
'Hello flutter...i like flutter...i like google...',
softWrap: true,
style: TextStyle(
color: Colors.white, fontSize: 20 , ),
),],),)
we just neeed to add mainAxisSize: MainAxisSize.min, properties inside child Column or Row where the child is set to Container
for example
AnythingYourWidget(
child: Container(
child: Column( // For Example Column
mainAxisSize: MainAxisSize.min, // these properties following the children content height available.
children: [
// YourWidget
]
)
)
),
I too had a container with a text widget inside that would not scale as the text increased in character count. Make the widget tree Container -> IntrinsicWidth -> Text/TextField and it seems to play nicely for me.
IntrinsicWidth will scale the size of the container to its child.