How to do like this
image
code
Row(
children: [
SizedBox(width: 33.w),
Text(
StringRes.getStart,
style: TextStyle(
fontWeight: FontWeight.w500,
color: AppColors.backgroundColor,
fontSize: 13.sp,
),
),
Spacer(),
Icon(
Icons.arrow_forward,
color: AppColors.backgroundColor,
),
SizedBox(
width: 3.w,
),
],
),
i get diffrent diffrent spacing in diffrent device
like this image 2
image 3
I assume what you are looking for is something like this:
Padding(
padding: const EdgeInsets.all(8.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: const [
SizedBox(width: 20),
Text('Get started'),
SizedBox(
width: 20,
child: Icon(Icons.arrow_forward),
),
],
),
),
In this example, the Text widget is centered by having equally large SizedBox widgets on both sides of it and by telling the Row widget to use MainAxisAlignment.spaceBetween. The padding around the Row contents is achieved with the Padding widget, so that it does not interfere with the content alignment.
I hope this helps you.
Related
My app needs to have 2 Texts that are to be placed one after another in the vertical direction. So I decided to use a Column widget. I didn't place a SizedBox between the 2 children of the Column, but they have already got quite a large amount of space in between them.
What can I do to get rid of the space? I set the mainAxisAlignment property of the Column to center, but that doesn't appear to be working.
body: Stack(
children: <Widget> [
Container(
decoration: const BoxDecoration(
image: DecorationImage(
image: AssetImage('assets/images/img1.jpg'),
fit: BoxFit.cover
),
),
),
Padding(
padding: const EdgeInsets.all(5),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget> [
Expanded(
child: Text(
quotationToDisplay,
style: const TextStyle(
fontFamily: "Bangers",
fontSize: 26.0,
backgroundColor: Colors.red
),
),
),
Expanded(
child: Text(
authorToDisplay,
style: const TextStyle(
fontSize: 23.0,
backgroundColor: Colors.yellow
),
),
)
],
),
),
],
)
You have Expanded as parent of two texts inside of Column, that force to set all space posible to the widget. Remove Expanded.
Because you are using Expanded, they are expanded equally on the main access, try not to use Expanded or add flex: 2 to the second Expanded.
here is the UI that I'm trying to build
but this is the output
I tried alignment also , but that also didn't working
but when setting a fixed height this is working fine
but I can't fill this using the fit parameter,
here is the code
Scaffold(
backgroundColor: kDarkTheme,
body: SafeArea(
child: Column(
children: [
const SizedBox(height: 10),
Row(
//code for top button
),
const SizedBox(height: 150),
Stack(
children: [
Center(
child: CircleAvatar(
radius: radiusSize + 5,
backgroundColor: kDarkCounterColor,
child: CircleAvatar(
backgroundColor: kDarkTheme,
radius: radiusSize,
),
),
),
Center(
child: Padding(
padding: const EdgeInsets.only(top: 35),
child: Text(
'39',
style: GoogleFonts.italiana(
fontSize: 120, color: kDarkCounterColor),
),
),
),
],
),
const SizedBox(height: 15),
const Text(
'Tap To Count',
style: TextStyle(
fontFamily: 'Helvatica',
color: Color(0xff656158),
),
),
Expanded(
child: Align(
alignment: Alignment.bottomRight,
child: SvgPicture.asset(
kDarkThemeImage,
)),
)
],
),
))
this is the code
then the first error appears again. how could I fix this?
You are using the Expanded widget on a column that doesn't have a set size. Try adding MainAxisSize attribute to your column, like this:
Column(
mainAxisSize: MainAxisSize.max, // Add this like
children: [
...
This will make your column fit the whole available size on the previous widget (a scaffold for the whole screen). Then the expanded widget will fill the remaining space not used by the other widgets inside the column.
I have the following Widget tree of a ListView item:
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Expanded(
child: Align(
child: Assets.images.select.image(height: 20, width: 20),
),
),
Expanded(
flex: 4,
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(right: 16),
child: Text(
food.name,
style: GoogleFonts.cabin(
color: Theme.of(context).primaryColor,
fontSize: FontSize.medium.size,
fontWeight: FontWeight.w700),
),
),
Container(
margin: EdgeInsets.only(top: 4),
child: Text(
"100 g",
style: GoogleFonts.cabin(
color: Color(0xFF777777),
fontSize: FontSize.small.size,
fontWeight: FontWeight.w500),
),
),
],
),
),
Expanded(
child: Column(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Align(
alignment: Alignment.centerRight,
child: Text(
"${food.carbohydratesPerGram} g / HC",
style: GoogleFonts.cabin(
color: Theme.of(context).primaryColor,
fontSize: FontSize.medium.size,
fontWeight: FontWeight.w400),
),
),
],
),
)
],
)
But it turns out like this:
I tried putting the ball in a column with "mainAxisAlignment" set to "mainAxisAlignment.center"
How can I get the ball on the left vertically centered in the row?
You can use crossAxisAlignment.
When you are in a row element the main is horizontal axis and the cross is vertical axis
When you are ina column the main is verticla axis and the cross is horizontal axis.
So in your Row element to center element in vertical axis you need to use
crossAxisAlignment: CrossAxisAlignment.center
Managed to get it somewhat working: instead of using an image widget, I used an IconButton widget and it magically worked
Add alignment: Alignment.center to you Assets.images.
Expanded(
child: Align(
alignment: Alignment.center, // This Here
child: Assets.images.select.image(height: 20, width: 20),
),
),
And I think your row is taking the height of your whole screen. If that is the case your image will come to the center of the screen coz your row is on the whole screen make sure that is not the case.
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 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.