I'm trying to make comment card.
There is one problem.
My avatar and button are not fixed when comment height is growing
I want avatar image and button's position fixed.
How can I make this ?
import 'package:flutter/material.dart';
import '../../size_config.dart';
class CommentItem extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Padding(
padding: EdgeInsets.symmetric(horizontal: 10, vertical: 10),
child: Row(
children: <Widget>[
CircleAvatar(
radius: 25,
child: ClipOval(
child: SizedBox(
height: 1000,
width: 1000,
child: Image.asset(
'assets/images/img2.jpg',
fit: BoxFit.cover,
),
),
),
),
Expanded(
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 10),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text('123',
style:
TextStyle(fontWeight: FontWeight.bold, fontSize: 17)),
SizedBox(height: 3),
Text(
'. If you want to keep these changes, it is re',
style: TextStyle(color: Colors.grey),
maxLines: 4,
),
],
),
),
),
ClipOval(
child: Material(
color: Colors.blue, // button color
child: InkWell(
splashColor: Colors.red, // inkwell color
child: SizedBox(
width: SizeConfig.widthMultiplier * 8.8,
height: SizeConfig.heightMultiplier * 5,
child: Icon(
Icons.person_add,
size: SizeConfig.imageSizeMultiplier * 5.5,
color: Colors.white,
)),
onTap: () {},
),
),
)
],
),
);
}
}
it looks like your post is mostly code; please add some more details
it looks like your post is mostly code; please add some more details
it looks like your post is mostly code; please add some more details
To achieve this you can make use of Row's crossAxisAlignment property it will arrange the widget inside the row respectively
For Center -
crossAxisAlignment: CrossAxisAlignment.center
For Top -
crossAxisAlignment: CrossAxisAlignment.start,
For Bottom -
crossAxisAlignment: CrossAxisAlignment.end,
Did you try using the crossAxisAlignment?
Row(
crossAxisAlignment: CrossAxisAlignment.start,
You can do it using...
crossAxisAlignment: CrossAxisAlignment.start
For this, you can use the Alignment Property of Row
There is two alignment property in Row:
MainAxisAlignment
CrossAxisAlignment
MainAxisAlignment is used for Horizontal Alignment of Widgets and CrossAxisAlignment is used for Vertical Alignment.
In your case you need to set:
Row(
crossAxisAlignment: CrossAxisAlignment.start,
Related
I'm having issues with the layout because of the long text, I've tried using Expanded / Flexible with the text that is causing the issue to fill the space it needs but it's overflowing. I know the question is asked hundred times, but I don't understand where is the mistake. I tried applying to both Expanded / Flexible to all of the Row/Columns individually and too all at the same time (mostly I was trying out layouts to try to fix it), and I still have the issue... I even tried to use the FittedBox with fit: BoxFit.(all of them).
Container(
alignment: Alignment.centerLeft,
child: Column(
children: [
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(right: 8.0),
child: Icon(Icons.directions_car),
),
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text("Text 1"),
SizedBox(
height: 4,
),
Text('TEXT 2'),
],
),
SizedBox(
width: 27,
),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text('1 World Way, Los Angeles, CA 90045, USA',
textAlign: TextAlign.left,
),
SizedBox(
height: 4,
),
Text('FLIGHT 3231'),
],
),
],
),
],
),
],
),
);
By my understanding, and do correct me if I'm wrong, applying Expanded / Flexible, Flexible takes only the needed space, and Expanded takes all available space, respecting the flex factor. So most of the time I use the Flexible widget, but this time it is not working.
Thanks in advance for the help!
Try using Expanded widget with flex value set as per the expectation of UI filling.
Sample Code:
Center(
child: Container(
height: 80,
color: Colors.yellow,
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: Icon(Icons.bus_alert),
),
Expanded(
flex: 1,
child: Container(
width: 1,
color: Colors.green,
child: Column(
children: [Text("Text 1"), Text("Text 1")],
),
)),
Expanded(
flex: 3,
child: Container(
color: Colors.blue,
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
Text("1 World Way, Los Angeles, CA 90045, USA"),
Text("FLIGHT 3231"),
],
),
))
],
),
))
Note: There is a limitation for the text content using. We need to make sure to set the height according to the expected text length.
You can use Flexible or Expanded Widget You should try to below code :
Card(
shape: RoundedRectangleBorder(
side: BorderSide(
color: Colors.blue,
),
borderRadius: BorderRadius.circular(15.0),
),
margin: EdgeInsets.all(16.0),
child: Container(
padding: EdgeInsets.all(8.0),
alignment: Alignment.centerLeft,
child: Column(
children: [
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Icon(Icons.directions_car),
SizedBox(
width: 10,
),
Flexible(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text("Text 1"),
SizedBox(
height: 4,
),
Text('TEXT 2'),
],
),
),
SizedBox(
width: 27,
),
Flexible(
child: Container(
child: Column(
children: [
Text(
'1 World Way, Los Angeles, CA 90045, USA',
textAlign: TextAlign.left,
),
SizedBox(
height: 4,
),
Text(
'FLIGHT 3231',
textAlign: TextAlign.left,
),
],
),
),
),
],
),
],
),
),
),
Your screen like this :
wrap it by a container with fixed width and then use auto_sized_text. Or you can wrap your Text widget by FittedBox by fixed width. it would do the same approach. Feel free to add maxLine, minFontSize and maxFontSize' in auto_sized_text. Using ExpandedorFlexible` only affects the size of the container when your text length is lower than the given width, and It does not help you in this situation.
If the text is really long, then using Expanded will wrap the text according to the parent widget, thus leading to change in the font size. You might consider using ellipsis.
return Container(
width:300 //give a width of your choice
child: Text('Any long text',
overflow:TextOverflow.ellipsis,
),
);
Now I am using row to horizon some component in flutter, this is my code:
Row(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Padding(
padding: const EdgeInsets.only(top: 8, bottom: 8.0),
child: Text(
item.subName,
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.w600,
),
),
),
Padding(
padding: const EdgeInsets.only(top: 8,bottom: 8.0,right: 1),
child: ButtonTheme(
minWidth: 50,
height: 30.0,
child:RaisedButton(
color: Theme.of(context).primaryColor,
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(5.0)),
onPressed: () async {
print("pressed");
},
child: Text("Subscribe"),
)
),
)
],
)
now I want the button subscribe align right, what should I do to make it work? I am tried like this but failed:
padding: const EdgeInsets.only(top: 8,bottom: 8.0,right: 1),
I am tried to make the button with one pixel of the screen, but it seems not working.
If you want something like this:
You can set the mainAxisAlignment property of Row to spaceBetween
What you are trying to add is padding which only surrounds the widget, it will not align the widget to right. it will add padding to the right side of the Widget.
In Row() widget make mainAxisAlignment: MainAxisAlignment.spaceBetween. This will align the Subscribe button to right.
If you want space between the widgets of the row.
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
),
To Align the widgets completely on the right.
Row(
mainAxisAlignment: MainAxisAlignment.end,
),
To make the widgets take up the space evenly in the row.
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
),
I am making layout for flutter application
What I want to do is
-----------------------
|[i] [text] |
| |
Icon should be the left (padding 5px)
And text should be the center of screen.
At first I should use the Column
However my layout is not the same proportion
It might be simple though , how can I make it??
Stack() is one of the many options that you can use. Something like this:
Stack(
children:<Widget>[
Padding(
padding: EdgeInsets.only(left: 5),
child: Icon(Icons.info),
),
Align(
alignment: Alignment.topCenter,
child: Text("I'm on the top and centered."),
),
],
),
One way you can do this is something like this..
Widget build(BuildContext context) {
return Column(
children: [
Padding(
padding: EdgeInsets.all(5),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Icon(Icons.info),
Text('text'),
Opacity(opacity: 0, child: Icon(Icons.info)),
],
),
),
Padding(
padding: EdgeInsets.all(5),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Icon(Icons.info),
Text('second text'),
Opacity(opacity: 0, child: Icon(Icons.info)),
],
),
),
],
);
}
Result:
I might be late, but I want this answer to be there, if some one would find it better for the development purposes in future time.
We can make a reusable widget, which we can use it inside the main widget. The widget will accept text, and icon to be passed when called
// IconData is the data type for the icons
Widget myWidget(String text, IconData icon) => Row(
mainAxisSize: MainAxisSize.min,
mainAxisAlignment: MainAxisAlignment.start,
children: [
// this will be used a left-padding param
SizedBox(width: 20.0),
// using it here
Icon(icon, size: 28.0, color: Colors.greenAccent),
SizedBox(width: 5.0),
// this will take the remaining space, and then center the child
Expanded(child: Center(child: Text(text)))
]
);
To use in the main Widget, just do like this:
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
// calling our widget here
myWidget('FirstText', Icons.alarm),
SizedBox(height: 20.0), // this is used as a top margin
myWidget('SecondText', Icons.notifications)
]
)
If you wanna check out the sources which I used, please see:
Expanded class
SizedBox class
The result you will get is this:
This was an answer I gave a while ago for this same issue, but the other situation was vertical (a Column) instead of horizontal (a Row). Just swap the Row and Columns out for a Column and Rows in this example and you'll get the idea.
My code has grey added in order to show the difference between the two approaches.
A Stack will work, but it's overkill for this, this kind of problem is part of why we have Expandeds and Flexibles. The trick is to use three Flexibles (2 Expandeds and a Spacer). Put the Spacer on top. It and the bottom Expanded must have the same flex value in order to center the middle Expanded.
import 'package:flutter/material.dart';
class CenteringOneItemWithAnotherItemInTheColumn extends StatelessWidget {
const CenteringOneItemWithAnotherItemInTheColumn({
Key key,
}) : super(
key: key,
);
/// Adjust these values as needed
final int sameFlexValueTopAndBottom = 40; // 40%
final int middleFlexValue = 20; // 20%
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Column Alignment Question'),
),
body: Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
const Spacer(),
const Text(
'Cent',
style: TextStyle(
fontSize: 64,
),
),
const Spacer(),
const Text(
'Bot',
style: TextStyle(
fontSize: 64,
),
),
],
),
Column(
children: <Widget>[
/// The key is to have the Spacer and the bottom Expanded
/// use the same value for flex. That will cause the middle
/// child of the Column to be centered vertically.
Expanded(
flex: sameFlexValueTopAndBottom,
child: Container(
width: 100,
color: Colors.grey[300],
),
),
Expanded(
flex: middleFlexValue,
child: const Align(
alignment: Alignment.center,
child: Text(
'Cent',
style: TextStyle(
fontSize: 64,
),
),
),
),
Expanded(
flex: sameFlexValueTopAndBottom,
child: Container(
color: Colors.grey[300],
child: const Align(
alignment: Alignment.bottomCenter,
child: Text(
'Bot',
style: TextStyle(
fontSize: 64,
),
),
),
),
),
],
),
],
),
);
}
}
I'm re-writing a simple app which calculates averages. However, I have a hard time with a TextField. I would like it to be exactly as on a first screenshot.
The TextField's width is stretched, I don't want that. I want it to be exactly as it is on the screenshot.
Desired look:
What I have:
Code:
import 'package:flutter/material.dart';
import 'package:easy_localization/easy_localization.dart';
class ArithmeticAverageScreen extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('arithmetic_average_title').tr(),
),
body: Container(
padding: EdgeInsets.all(16.0),
child: Column(
children: <Widget>[
Card(
child: Container(
padding: EdgeInsets.symmetric(vertical: 20.0),
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
ListTile(
leading: Icon(Icons.help),
title: Text('arithmetic_average_help').tr(),
subtitle: Text('arithmetic_average_help_content').tr(),
)
],
),
)
),
SizedBox(height: 16.0),
Card(
child: Container(
padding: EdgeInsets.symmetric(vertical: 20.0, horizontal: 20.0),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[
Text('arithmetic_average_your_grades', style: Theme.of(context).textTheme.headline5).tr(),
SizedBox(height: 16.0),
Text('arithmetic_average_grades_one_at_a_time', style: Theme.of(context).textTheme.headline6,).tr(),
SizedBox(height: 16.0),
Text('arithmetic_average_grade', style: Theme.of(context).textTheme.subtitle2).tr(),
TextField()
],
),
),
)
],
),
)
);
}
}
This will help you make generic width on all devices, so here width * 0.3 means it will take 30% of the screen width
Container(
width: MediaQuery.of(context).size.width * 0.3,
child: TextField(),
)
Use Row Widget, and put Expanded Widget as child Widget and inside that put your widgets, as Expanded will take up equal space.
return Row(
children: [
Expanded(
child: TextField();
),
Expanded(
child: Button();
)
],
);
When ever you want to play with height and width you can use the widget Container.If you want to play with a property which cannot found in the widget you are using wrap it with a widget with that property will help you.
Container(
margin: const EdgeInsets.only(right: 150),
child: new TextField(
decoration: new InputDecoration(
hintText: 'Grade',
)
)
)
You can try to wrap your TextField and Button with two Flexible widgets and apply desired proportions, e.g. 1:2 which would give you following result:
Row(
children: [
Flexible(
flex: 1,
child: TextField(),
),
Flexible(
flex: 2,
child: RaisedButton(
child: Text('Hello'), onPressed: () {}),
)
],
)
],
You can also replace the first Flexible with SizedBox and set an exact value, e.g:
Row(
children: [
SizedBox(
width: 100.0,
child: TextField(),
),
Flexible(
flex: 2,
child: RaisedButton(
child: Text('Hello'), onPressed: () {}),
)
],
)
],
TextField doesn't have an intrinsic size (width) constraint so it will always try to occupy all horizontal space. Flexible allows to constraint it to desired width in a Row.
Full example on DartPad.
Here is my widget:
return Card(
child: Container(
height: 150,
child: Row(
children: <Widget>[
Placeholder(
fallbackHeight: 100,
fallbackWidth: 100,
),
Container(
width: _deviceHeight,
color: Colors.red,
child: Column(
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Flexible(
child: Text(
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaasssssaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
overflow: TextOverflow.ellipsis,
maxLines: 4,
)),
// Expanded(flex: 8, child: Text("bbb")),
Flexible(child: Text("bbb")),
// Flexible(child: Text("aaa")),
],
),
)
],
),
));
I expected that text will be placed on new line, but I am getting overflow:
Wrap your inner Container with an Expanded to provide it with the available parent constraints, otherwise the Container has infinite height and will result in an overflow (because you are on landscape).
Expanded(
child: Container(
width: _deviceHeight,
color: Colors.red,
child: Column(
...
You could wrap the second element of the Row with Flexible, like this:
Row(
children: <Widget>[
Placeholder(..),
Flexible(
child: Container(
color: Colors.red,
child: Column(...
Inside the Row you need Placeholder to keep its width and Container width to be flexible.
Edit: And you should remove the width of the Container, since it would be flexible and it should take as much as possible to fit the screen.