I have two expanded widgets in a column. The first expanded widget contains a RichText widget that contains variable length text. If the text overflows it is cut off. What I want to acheive is the whole RichText widget scaling down if the content is too big. I have tried FittedBox which usually works well for Text widgets but when I apply this to a RichText widget the widget it scaled down but the wrapping is removed. How do I wrap and then, if the richtext widget is too big for the expanded then scale down?
return Container(
child: Column(children: [
Expanded(
flex: 1,
// child:FittedBox(fit: BoxFit.scaleDown,
child: RichText(
text: TextSpan(
text:
"I am a TextSpan widget and am veyr very long lskjdf lskdj flksj dflksjd lfkj",
style:
DefaultTextStyle.of(context).style.copyWith(fontSize: 35)),
)),
Expanded(flex: 4, child: Text("blah blah"))
]));
[UPDATED]
Using AutoSizeText package:
Container(
child: Column(
children: [
Expanded(
flex: 1,
// child:FittedBox(fit: BoxFit.scaleDown,
child: AutoSizeText.rich(
TextSpan(text: "A really long String"),
style: DefaultTextStyle.of(context).style.copyWith(fontSize: 35),
)
),
Expanded(
flex: 4,
child: Text("blah blah")
)
]
)
)
Related
I am facing error in the Text widget which is in Column.
body: Padding(
padding: const EdgeInsets.all(20),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
widget.songModel.displayNameWOExt, <------- here is my text
),
Text(
widget.songModel.artist.toString(),
overflow: TextOverflow.fade,
),
],
),
],
), ), );
This is what happened to me
This is what i need look like
Wrap the Text that is inside a Row widget with an Expanded widget:
Expanded(child: Text(/* Here the text*/),
wrap the text with the container and give a specific size to the container after that use overflow: TextOverflow.fade or any other property of "overflow", because these properties only work when you give a size to textfield but you cant give size to textfield so wrap it with container.
try embedding the Text() widget inside a Expanded() widget expanded documentation
Expanded is a widget that expands a child of a Row, Column, or Flex so that the child fills the available space.
I'm trying to use flexible on my text cause it's overflow but for some reason expanded or neither flexible didn't work. But it work on other text widget on different screen. Anyone know why ? How can I fix this ?
return Row(
children: [
/// Ticket Details
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
/// Ticket Title
Flexible(
child: Text(
ticketData['title'],
style: primaryColor700Style.copyWith(
fontSize: fontSize18,
),
),
),
SizedBox(height: 8),
/// Date Created
Text(
'Created : ' +
DateFormat('d MMM y').format(
DateTime.parse(
ticketData['date_created'].toDate().toString(),
),
),
style: primaryColor400Style.copyWith(
fontSize: fontSize12,
),
),
],
),
/// Urgent Icon
if (ticketData['is_urgent'])
Icon(
Icons.warning_rounded,
size: 35,
color: warningColor,
),
],
);
Wrap the column with flexible
Row(
children: [
Flexible(
child: Column(
children:[
Text(),
]
)
)
]
)
Row takes infinite width, To get available width row for next children you can wrap Expanded/ Flexibile/ fixed width widget. You can check this doc more about.
You can find this from Layout algorithm on Row
Expanded, to indicate children that should take all the remaining room.
Flexible, to indicate children that should share the remaining room but that may by sized smaller (leaving some remaining room unused).
I have a AutosizeText widget wrapped in a column and a row. It doesn't resize, it overflows and when I wrap the AutosizeText into an expanded widget it (as suggested by the AutosizeText package) there's an Error: RenderBox was not laid out: RenderFlex#2f4c1 relayoutBoundary=up1 NEEDS-PAINT NEEDS-COMPOSITING-BITS-UPDATE
Here is a minimal reproducible sample:
class Example extends StatelessWidget {
const Example({
Key? key,
}) : super(key: key);
#override
Widget build(BuildContext context) {
return Row(
children: [
Column(
children: [
Row(
children: const [
AutoSizeText('subject',
maxLines: 1,
minFontSize: 16,
overflowReplacement: Text(
'subject',
)),
],
),
],
),
],
);
}
}
Here's the widgetTree of the App.
The problem here is because of the first Row Widget as they said:
When a row is in a parent that does not provide a finite width constraint it will try to shrink-wrap its children along the horizontal axis
so here the Row Widget is trying to shrink its child AutoSizeText and here will be a second problem that if the text is bigger than the screen size it will overflow.
the solution here is to expand the AutoSizeText, but here will be another problem, as they said:
Setting a flex on a child (e.g. using Expanded) indicates that the child is to expand to fill the remaining space in the horizontal direction
These two directives are mutually exclusive. If a parent is to shrink-wrap its child, the child cannot simultaneously expand to fit its parent
as you can see the Row Widget is trying to shrink its child, at the same time the Expanded Widget is trying to expand it, so they will conflict with each other and that causes your problem.
The safe solution here is to wrap 'AutoSizeText' with Expanded and as my dear friend #Dulaj Nadawa said: is to wrap The Column Widget with Expanded too
and for sure avoid using unnecessary Widgets
.
hope I could help.
try this:
Row(
children: [
Expanded(
child: Column(
children: [
Expanded(
child: Row(
children: [
Expanded(
child: AutoSizeText(
'The text to display sdasdasdadsd das dasd as da das da s as dasd ad as da s dads asdas das dsd s',
maxLines: 1,
minFontSize: 16,
overflowReplacement: Text(
'subject',
)),
),
Container(
height: 100,
width: 100,
color: Colors.red,
),
],
),
),
Container(
height: 100,
width: 100,
color: Colors.purple,
),
],
),
),
],
)
Try wrapping both Column and AutosizeText with Expanded
I need to fix a minimum width to my Column Widgets. Inside each of them, I have Text Widgets which can be very short or very long. I need to fix a minimum width to them in order to have an acceptable size of Column even if the text is short. The other Column need obviously to adapt himself.
Row(children: [
Column(
children: [
Container(
constraints: BoxConstraints(minWidth: 80), // do not work
child: Text("short text"),
),
],
),
Column(
children: [
Container(
constraints: BoxConstraints(minWidth: 110), // do not work
child: RichText(
text: TextSpan(
text:"very very longggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg text")),
),
],
),
],
)
There's probably a dozen ways to do what you want. And likely none of them straightforward or easy to understand. (The subject of constraints & sizes is quite complicated. See this constraints page for more examples & explanations.)
Here's one potential solution.
This will set a minimum width for the blue column (based on stepWidth), but will expand/grow if the text (child) inside wants to.
The yellow column will resize to accommodate the blue column.
class ExpandedRowPage extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Expanded Row Page'),
),
body: SafeArea(
child: Center(
child: Row(
children: [
IntrinsicWidth(
stepWidth: 100,
// BLUE Column
child: Container(
color: Colors.lightBlueAccent,
child: Column(
children: [
//Text('Short'),
Text('shrt')
],
)
),
),
// YELLOW Column
Flexible(
child: Container(
alignment: Alignment.center,
color: Colors.yellow,
child: Column(
children: [
Text('Very lonnnnnnnnnnnnnnnnnnnnnnnnnnnng texttttttttttttt'),
],
)
),
)
],
)
),
),
);
}
}
You could do the above without a Flexible yellow column, but a very long text child would cause an Overflow warning without a Flexible or Expanded wrapping widget.
A Row widget by itself has an infinite width constraint. So if a child wants to be bigger than screen width, it can, and will cause an overflow. (Try removing Flexible above and rebuild to see.)
Flexible and Expanded, used only inside Row & Column (or Flex, their superclass), checks screen width and other widgets inside a Row, and provides its children with a defined constraint size instead of infinite. Children (inside Flexible/Expanded) can now look up to parent for a constraint and size themselves accordingly.
A Text widget for example, will wrap its text when it's too wide for constraints given by Flexible/Expanded.
use FittedBox();
suppose Example:
Row(
children: [
Column(
children: [
Container(
constraints: BoxConstraints(minWidth: 80), // do not work
child: Text("short text"),
),
],
),
Column(
children: [
Container(
constraints: BoxConstraints(minWidth: 110), // do not work
child:
FittedBox(
child: RichText(
text: TextSpan(
text:
"very very longggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg text")),
),
),
],
),
],
);
I want to implement a Row having two Text widgets and a middle line like this:
The following code is my current implementation.
Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text(
'Text',
overflow: TextOverflow.ellipsis
),
Expanded(
child: Container(
padding: EdgeInsets.only(left: 16, right: 16),
height: 1,
child: Container(
color: Colors.black
)
),
),
Text(
'Right Text'
)
]
)
The problem of this code is that the left text overflows if it is long like this:
The expected output is:
Wrapping the first Text widget with a Flexible can solve the overflow issue, but the output is not the same as the expected output because of the Expanded widget that fills the space between two Text widgets with a line.
How can I achieve this? Any help is highly appreciated!