How can I position my Text like this? I check the docs and I only see texts that are on each of the other side of the row but not someone like this which is the other way around.
I just wanted to have my first column takes about 30% of the row inside a card with text alignment of right and my second column takes about 70% of the row inside a card with text alignment of left. I also wanted to have it like a sort of table where in everything is in proper alignment with regards to column. Thank you
Date: Today
Address: Sample
Gender: Male
Status: Active
You can use this code:
Table(
children: [
buildTableRow("Date:", "Today"),
buildTableRow("Address:", "Sample"),
buildTableRow("Gender:", "Male"),
buildTableRow("Status:", "Active"),
],
),
TableRow buildTableRow(String _title, String _value) {
return TableRow(
children: [
Container(child: Text(_title), alignment: Alignment.centerRight),
Container(
child: Padding(padding: const EdgeInsets.only(left: 15), child: Text(_value)),
alignment: Alignment.centerLeft,
),
],
);
}
Code output:
You can use the Table class of flutter
https://api.flutter.dev/flutter/widgets/Table-class.html
Table(
columnWidths: {0 : FractionColumnWidth(.3)},
defaultVerticalAlignment: TableCellVerticalAlignment.middle,
children: [
]
),
Related
I am rendering a standard Table inside a GridView, inside a Flex inside a Row. The 2nd row of the table includes a Button.
When the contents of the first row of the table are above a certain size the clickable region of the button begins to cut off, missing entirely over a certain size.
Note: this is using Flutter Web, I have not tested on Mobile/Desktop.
I have created a minimal reproducible example in an attempt to isolate all logic.
Widget _render() {
return Row(mainAxisSize: MainAxisSize.max, children: [
SizedBox(
width: 900,
height: 900,
child: GridView.count(
crossAxisCount: 2,
children: <Widget>[
Table(border: TableBorder.all(), children: <TableRow>[
TableRow(
children: <Widget>[
TableCell(
child: Text(''),
),
TableCell(
child: SizedBox(
height:
440, //The clickable region of the button begins to be cut off around 430, and stops altogether by 450
))
],
),
TableRow(children: <Widget>[
TableCell(
child: Text(""),
),
TableCell(
child: TextButton(
onPressed: () => {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text("Hi Button"))),
},
child: Text("Hi"))),
])
]),
],
),
),
]);
}
What is causing this effect? I am assuming it is some interaction between the visible container and the Table.
Edit: as suggested by #pskink rendered with debugPaintSizEnabled flag which highlights the problem perfectly. However; how would you fix?
return Scaffold(
body: Center(
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Container(
color: Colors.red,
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.height,
child: Center(
child: SelectGroupCard(context, titles: titles, ids: ids,
onTap: (title, id) {
setState(() {
cardGroupResult = title + " " + id;
});
}),
),
),
],
),
There are several cards as seen in the picture. I want to get these right out. I even want to be able to show these cards in the middle of the page, in 3 columns, 4 rows.
Use widget GridView, it allows you to select the desired number of columns and rows. Also, it is possible to install paddings.
you can use GridView
GridView(
gridDelegate:const SliverGridDelegateWithFixedCrossAxisCount(
crossAxisCount: 2, // you can change this
),
children :[...] // put your cards here !
)
you can remove the width property of SelectGroupCard. for example, if SelectGroupCard is a row widget, the following code like this:
Row(
mainAxisSize: MainAxisSize.min,
children: [],
)
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'm trying to make a Table with two cells of the same width and height, so that the height depends on the size of the content. However, the smaller TableCell always shrinks:
This is what I'm trying to implement:
Here's the code:
Table(
children: [
TableRow(
children: [
TableCell(
child: Container(
color: Colors.green,
child: Text(
'long text long text long text long text long text long text long text'),
),
),
TableCell(
child: Container(
color: Colors.orange,
child: Text('short text'),
),
),
],
)
],
),
P.S. I could solve it by adding verticalAlignment: TableCellVerticalAlignment.fill, to the smaller cell, but any cell can be the smaller one, depending on the content. When I add this line to both cells, the whole table disappears. The only bypass I could imagine is to calculate the length of the content and find the smaller cell, but I wonder if there is a way to implement this UI directly with Flutter.
Would appreciate any help.
1. Row with IntrinsicHeight
IntrinsicHeight limits the height of the Row to the content size, which however is considered a 'relatively expensive' approach and is not recommended.
IntrinsicHeight(
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: [
Expanded(
child: Container(
color: Colors.green,
child: Text(
'long text long text long text long text long text',
))),
Expanded(
child: Container(
color: Colors.orange,
child: Text(
'short text',
))),
],
),
),
2. Table with TableCellVerticalAlignment.fill
As mentioned in the question, the .fill option must not be used in the largest TableCell, because in this case the TableRow will have zero height. This is the preferred solution, because it doesn't have the 'expensiveness' issue of the previous one.
final texts = ['long text long text long text long text long text', 'short text'];
final colors = [Colors.green, Colors.orange];
// find the longest text and its index
final max = texts.asMap().entries.reduce(
(a, b) => (a.value.length > b.value.length) ? a : b,
);
return Table(children: [
TableRow(
children: texts
.asMap()
.entries
.map((e) => TableCell(
// use .fill in all cells except the largest
verticalAlignment: (e.key != max.key)
? TableCellVerticalAlignment.fill
: TableCellVerticalAlignment.top,
child: Container(
color: colors[e.key],
child: Text(e.value),
)))
.toList(),
),
]);
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")),
),
),
],
),
],
);