Can anyone help me out in aligning the layout in flutter? - flutter

Below is the screenshot with incorrect layout:
As you can see above, a column inside a row is pushing other children down.
I have removed the column from the row and the layout was displaying as expected. However, I need that column to be part of the row.
class TitleSection extends StatelessWidget{
#override
Widget build(BuildContext context) {
// TODO: implement build
return Container(
padding: EdgeInsets.all(32),
child: Row(
children: <Widget>[
Expanded(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text("Kratos",style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 20
)),
Text("The God Of War",
style: TextStyle(
color: Colors.grey[500]
),
),
],
),
),
Icon(
Icons.star,
color: Colors.red,
),
Text("143")
],
)
);
}
}

Rather than wrapping your Column with Expanded which will occupy as much space as possible use Flexible, also wrap you other widgets inside a Column so you can easily lay them out :
class TitleSection extends StatelessWidget{
#override
Widget build(BuildContext context) {
return Container(
padding: EdgeInsets.all(32),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Flexible(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text("Kratos",style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 20
)),
Text("The God Of War",
style: TextStyle(
color: Colors.grey[500]
),
),
],
),
),
Flexible(
child: Column(
children: <Widget>[
Row(
children: <Widget>[
Icon(
Icons.star,
color: Colors.red,
),
Text("143")
],
),
],
),
),
],
)
);
}
}

Related

Centering an widget in a row by height in flutter

I'm sorry for my bad english
I just want to center the icon widget on the row. How can I do that?
here is the screenshot
what i want is here
here is my code
Container(
color: Colors.red,
child: Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
CircleAvatar(
radius: 40.r,
//backgroundImage: AssetImage(_imagaPath),
backgroundColor: Colors.blue,
),
Padding(
padding: EdgeInsets.all(6.0.w),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
TextWidget(
"Good morning",
fontSize: 12.sp,
color: silver,
fontWeight: semiBold,
),
TextWidget(
"John",
fontSize: 20.sp,
fontWeight: bold,
),
],
),
),
const Spacer(),
Container(
color: Colors.yellow,
child: const Icon(Icons.add),
),
],
),
)
wrap your widget with Center like:
Center(
child: Container(
color: Colors.yellow,
child: const Icon(Icons.add),
),
),
the output would look like:
maybe you just make this crossAxisAlignment: CrossAxisAlignment.start,
to
crossAxisAlignment: CrossAxisAlignment.center, for first Row

Centring a Column inside another Column in Flutter

I'm currently writing my first Flutter App and I got a little stuck here. Basically what I'm trying to do is display an image at the top of the screen (with 100px top-margin) and display a Column which contains some Text and a Button on the centre of the screen. I tried moving mainAxisAlignment crossAxisAlignment into the outer Column Widget but that centres everything.
Here's my code:
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.white,
body: Center(
child: Column(
children: [
Opacity(
opacity: 0.25,
child: Container(
child: Image.asset('assets/images/logo.png'),
margin: EdgeInsets.only(top: 100),
width: 75,
),
),
Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text('Please enter your first name:'),
TextButton(onPressed: () {}, child: Text('Submit'))
],
)
],
),
),
);
You actually only need to wrap the second column in an Expanded widget, "so that the child fills the available space", that's all:
Column(
children: [
Expanded(
child: Column(
children: [],
),
)],
),
try, wrap your second Column inside a Center widget.
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.white,
body: Center(
child: Column(
children: [
Opacity(
opacity: 0.25,
child: Container(
child: Image.asset('assets/images/logo.png'),
margin: EdgeInsets.only(top: 100),
width: 75,
),
),
Center(
Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text('Please enter your first name:'),
TextButton(onPressed: () {}, child: Text('Submit'))
],
)
],
),
),
),
);
If this doesn't work you could also wrap it in an Align widget and add the alignment property to it.
Align(
alignment: Alignment.center,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Text('Please enter your first name:'),
TextButton(onPressed: () {}, child: Text('Submit'))
],
),
),
import 'package:flutter/material.dart';
void main() {
runApp(
MaterialApp(
home: Scaffold(
appBar: AppBar(),
body: Container(
height: double.infinity,
width: double.infinity,
color: Colors.blue,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
Container(
height: 200,
width: 200,
color: Colors.pink,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
),
),
],
),
),
),
),
);
}
you have to use mainAxisAlignment property to set MainAxisAlignment.center.
In order to center align your second column,
Make sure MainAxisAlignment of your Second Column is MainAxisAlignment.center
Wrap your second column inside a Align Widget
Now, wrap your Align widget with Expanded widget.
This should solve your issue.
Check this refrence.
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const SizedBox(
height: 18.0,
),
const Padding(
padding: EdgeInsets.only(left: 16.0),
child: Text(
'Recent Search(s)',
style: TextStyle(
color: Colors.black,
fontSize: 16.0,
fontWeight: FontWeight.bold),
),
),
Expanded(
child: Align(
alignment: Alignment.center,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(
MdiIcons.magnify,
color: Colors.grey.shade600,
size: 72.0,
),
const SizedBox(
height: 8.0,
),
Text(
'Search for places',
style: TextStyle(
fontSize: 14.0,
color: Colors.grey.shade600,
fontWeight: FontWeight.w600),
),
Text(
'You haven\'t serached for any items yet...',
style: TextStyle(
fontSize: 12.0,
color: Colors.grey.shade700,
fontWeight: FontWeight.w500),
),
Text(
'Try now - we will help you!',
style: TextStyle(
fontSize: 12.0,
color: Colors.grey.shade700,
fontWeight: FontWeight.w500),
)
],
),
),
)
],

Flutter: How to create Wrap widget - Overflow warning

I am creating a quiz in flutter, and I want to create a Wrap widget, because there are some long questions (Text), which doesn't fit in one row. Where sould i put my Wrap widget? I tried to replace every simple Row widget with the Wrap widget and none of them seems to work. Also there is thelink with the instructions for how to use the Wrap widget that i followed: https://medium.com/flutter-community/flutter-wrap-widget-e1ee0b005b16
Thanks.This is my code:
`
import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
class questionpage extends StatefulWidget {
#override
_questionpageState createState() => _questionpageState();
}
class _questionpageState extends State<questionpage> {
int qnum = 0;
int score = 0;
int seconds = 10;
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.indigoAccent[700],
title: SafeArea(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Container(
child: Text(
'$qnum/10 ',
style: TextStyle(
fontSize: 28,
),
),
),
Container(
child: Text(
'$seconds',
style: TextStyle(
fontSize: 28,
),
),
),
Container(
child: Text(
'Score: $score',
style: TextStyle(
fontSize: 28,
),
),
),
],
),
),
),
body: Column(children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
margin: EdgeInsets.fromLTRB(0, 50, 0, 0),
child: Text(
'Question $qnum:',
style: new TextStyle(
color: Colors.black,
fontSize: 32.0,
fontWeight: FontWeight.bold,
decoration: TextDecoration.underline,
decorationThickness: 3.0,
),
),
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
margin: EdgeInsets.fromLTRB(0, 5, 0, 0),
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'THIS IS THE LONGGGGGGGGGGG QUESTION',
style: new TextStyle(
color: Colors.black,
fontSize: 28.0,
fontWeight: FontWeight.bold
),
),
],
),
),
],
),
],),
);
}
}
[1]: https://i.stack.imgur.com/U4Aut.png
You have to make the inner Row Wrap and then the outer Row Column or Wrap like this.
Column(// this could be wrap too
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Container(
margin: EdgeInsets.fromLTRB(0, 5, 0, 0),
child: Wrap(
alignment: WrapAlignment.center,
children: <Widget>[
Text(
'THIS IS THE LONGGGGGGGGGGG QUESTION',
softWrap: true,
style: new TextStyle(
color: Colors.black,
fontSize: 28.0,
fontWeight: FontWeight.bold),
),
],
),
),
],
),
Let me know if you need more than this

Flutter Card Color

I want to make this card which i have divided into columns (Expanded widget), The problem i am facing is : i am unable to set color container (parent of right column) to full height, so only part of it shows colored background.
What I Have:
What I Want:
I tried Flutter Inspector tool and noticed that Container and its child Column are not getting full height (Even after typing mainAxisSize: MainAxisSize.max)
Instead of Using Expanded i also tried using FractionSized.. but not luck.
Code :
import 'package:flutter/material.dart';
class SubjectPage extends StatelessWidget {
final String dayStr;
SubjectPage(this.dayStr);
#override
Widget build(BuildContext context) {
return Padding(
padding: EdgeInsets.fromLTRB(20.0, 40.0, 20.0, 0),
child: Column(
children: <Widget>[
Card(
child: Row(
children: <Widget>[
// Column 1
Expanded(
flex: 7,
child: Padding(
padding: EdgeInsets.all(20.0),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
getTitle("UEC607"),
getSubName("Data Communication & Protocol"),
getVenue("E-204"),
],
),
),
),
// Column 2
// The Place where I am Stuck//
Expanded(
flex: 3,
child: Container(
color: Colors.blue,
child: Column(
mainAxisSize: MainAxisSize.max,
children: <Widget>[
getType("L"),
getTime("9:00"),
],
),
),
)
// COlumn 2 End
],
),
)
],
),
);
}
// Get Title Widget
Widget getTitle(String title) {
return Padding(
padding: EdgeInsets.only(bottom: 8.0),
child: Text(title),
);
}
// Get Subject Name
Widget getSubName(String subName) {
return Padding(
padding: EdgeInsets.only(bottom: 25.0),
child: Text(subName),
);
}
// Get Venue Name
Widget getVenue(String venue) {
return Padding(
padding: EdgeInsets.only(bottom: 0.0),
child: Text(venue),
);
}
Widget getType(String type) {
return Padding(
padding: EdgeInsets.only(bottom: 10.0),
child: Text(type),
);
}
Color getColor(String type) {
if (type == "L") {
return Color(0xff74B1E9);
}
}
Widget getTime(String time) {
return Text(time);
}
}
Set the container height
Expanded(
flex: 3,
child: Container(
height: double.infinity,
color: Colors.blue,
child: Column(
mainAxisSize: MainAxisSize.max,
children: <Widget>[
getType("L"),
getTime("9:00"),
],
),
),
)
For me it helps to make sure which Widget should be using a fixed space / size and which should expand to fit a space / size
Then I build the layout of the widget using Column and Row (this makes it easy to prepair and decide where to wrap widgets in a Expanded or Flexible widget)
But here is the short example:
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
centerTitle: true,
title: Text('Stackoverflow'),
),
body: Container(
margin: EdgeInsets.all(10),
width: double.infinity,
height: 100,
child: Row(
children: <Widget>[
// Texts
Expanded(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
// UEC607 & Digital communication text
Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
Row(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Text(
'UEC607',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color: Colors.grey
),
),
],
),
SizedBox(
height: 5,
),
Row(
mainAxisAlignment: MainAxisAlignment.start,
children: <Widget>[
Text(
'Digital communication',
style: TextStyle(
fontSize: 20,
color: Colors.black
),
),
],
)
],
),
Expanded(
child: Row(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.end,
children: <Widget>[
Text(
'E-206',
style: TextStyle(
fontSize: 18,
fontWeight: FontWeight.bold,
color: Colors.black
),
),
],
),
)
],
),
),
// Card
Container(
width: 90,
color: Colors.lightBlue.withOpacity(.8),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Text(
'L',
style: TextStyle(
fontSize: 24,
fontWeight: FontWeight.bold,
color: Colors.white
),
),
SizedBox(
height: 5,
),
Text(
'09:00',
style: TextStyle(
fontSize: 24,
fontWeight: FontWeight.bold,
color: Colors.white
),
),
],
),
)
],
),
),
);
}
And it will look like this:
Use a FittedBox for wrapping the blue container
Expanded(
flex: 2,
child: FittedBox(
child: Container(
color: Colors.blue,
child: Column(
mainAxisSize: MainAxisSize.max,
children: <Widget>[
getType("L"),
getTime("9:00"),
],
),
),
),
)
You should put your Row widget inside an IntrinsicHeight widget and set crossAxisAlignment property of your Row equal to CrossAxisAlignment.stretch. It will solve your problem.
IntrinsicHeight(
child: Row(
crossAxisAlignment: CrossAxisAlignment.stretch,
children: <Widget>[]
),
)

[flutter]Why my column alignment is always center?

I declared two columns in a row to layout the text and the icon.
The column for the icon is always center even if I set the mainAxisAlignment with MainAxisAlignment.start.
Here is the code for the card:
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:life_logger/models.dart';
import 'package:life_logger/screens/entry_editor_screen.dart';
import 'package:life_logger/widgets/dot.dart';
Wrap buildActivities(Entry entry) {
var children = <Widget>[];
var idx = 0;
entry.activities.forEach((activity) {
var element = Row(mainAxisSize: MainAxisSize.min, children: <Widget>[
Icon(
activity.iconData,
color: entry.mood.color,
),
SizedBox(
width: 3,
),
Text(
'${activity.description}',
style: TextStyle(color: Colors.grey),
),
]);
children.add(element);
if (idx < entry.activities.length - 1) {
children.add(Dot());
}
idx++;
});
return Wrap(
children: children,
spacing: 5,
crossAxisAlignment: WrapCrossAlignment.center,
);
}
Widget buildEntryRow(Entry entry, BuildContext context) {
var entryRow = GestureDetector(
onTap: () {
Navigator.push(
context,
MaterialPageRoute(builder: (context) => EntryEditorScreen(entry)),
);
},
child: Row(
children: <Widget>[
// the column for the icon
Column(
mainAxisAlignment: MainAxisAlignment.start,
mainAxisSize: MainAxisSize.max,
children: <Widget>[
Container(
margin: EdgeInsets.only(left: 8.0, right: 8.0),
child: Icon(
entry.mood.iconData,
color: entry.mood.color,
size: 48,
),
),
],
),
Expanded(
child: Column(
children: <Widget>[
Row(
children: <Widget>[
Baseline(
baseline: 30.0,
baselineType: TextBaseline.alphabetic,
child: Text(
entry.mood.description,
style: TextStyle(
color: entry.mood.color,
fontSize: 24,
),
),
),
Baseline(
baseline: 30.0,
baselineType: TextBaseline.alphabetic,
child: Text(
DateFormat.Hm().format(entry.createdAt),
style: TextStyle(
color: Colors.grey,
fontSize: 16,
),
),
),
],
),
Row(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Expanded(child: buildActivities(entry)),
],
),
Row(
children: <Widget>[
Text(
entry.note,
style: TextStyle(
color: Colors.grey,
fontSize: 16,
),
),
],
),
],
),
),
],
));
return entryRow;
}
class EntryCard extends StatefulWidget {
final List<Entry> entries;
EntryCard(this.entries);
#override
_EntryCardState createState() => _EntryCardState();
}
class _EntryCardState extends State<EntryCard> {
#override
Widget build(BuildContext context) {
var dateRow = Container(
height: 30,
decoration: BoxDecoration(
color: widget.entries[0].mood.color.withOpacity(0.5),
borderRadius: BorderRadius.all(Radius.circular(4.0)),
),
child: Row(
children: <Widget>[
Container(
margin: EdgeInsets.only(left: 24.5, right: 24.5),
child: Ring(
size: 5.0,
color: widget.entries[0].mood.color,
),
),
Text(
DateFormat('EEEEE, M月d日').format(widget.entries[0].createdAt),
style: TextStyle(
color: widget.entries[0].mood.color,
fontSize: 14,
),
)
],
));
return Card(
child: Column(
children: <Widget>[dateRow] +
widget.entries.map((entry) => buildEntryRow(entry, context)).toList(),
));
}
}
The actual layout as follow:
Use crossAxisAlignment: CrossAxisAlignment.start
And for future, I would suggest you to add code that is independent of other code so that others can run it and see.
like that for one widget
Container(
child: Align(
alignment: Alignment.centerRight,
child: Text(S.current.forgetPassword),
),
),
or for all
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
If you want you can adjust column according to you .
Here is code of how to call widgets of columns at start.
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
Use it :
Column(
children: const <Widget>[
Align(
alignment: Alignment.centerLeft,
child: Text('Text 1')
),
Align(
alignment: Alignment.centerLeft,
child: Text('Text 2')
),
],
)
Setting the height of the Container worked for me:
height: double.infinity,