Widget myPost(double screenH, BuildContext context, double screenW) {
String sampleSrc =
"https://images.unsplash.com/photo-1475924156734-496f6cac6ec1?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=2070&q=80";
return Container(
margin: const EdgeInsets.symmetric(vertical: 10),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Container(
constraints: BoxConstraints(minWidth: screenW * 0.1),
height: screenH * 0.1,
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 12.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Row(
children: [
const CircleAvatar(
radius: 30,
),
SizedBox(
width: screenW * 0.01,
),
Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
"QWE QWE",
),
Row(
mainAxisAlignment: MainAxisAlignment.start,
children: [
Text(
"27 min",
),
const Icon(
Icons.enhanced_encryption_sharp,
size: 12,
),
],
),
],
),
],
),
const Icon(Icons.more_vert_sharp),
]),
),
),
ReadMoreText(
"text" * 800,
trimCollapsedText: "Read More...",
trimExpandedText: "Read less",
trimLines: 3,
style: const TextStyle(fontSize: 20),
trimMode: TrimMode.Line,
moreStyle: const TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
),
lessStyle: const TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
),
),
InkWell(
onTap: () {},
child: Container(
constraints: BoxConstraints.loose(Size.fromHeight(screenH * 0.5)),
child: Image.network(
sampleSrc,
fit: BoxFit.fitWidth,
width: double.infinity,
),
),
),
],
),
);
}
My design
I'm using the responsive_framework package, but when I reduce the height, all the widgets resizing, and I get overflows. The design I'm trying to make is like the following GIF the design that I want
Just like in responsive sites, I want the widgets to be fixed and only scrollable, no matter how much the height decreases.
Any trick or document to do this ?
The overall height on shrink is greater than height: screenH * 0.1, you can include extra pixels like height: 10+ (screenH * 0.1) But you can just include fixed height here. Like on item, you can choose minimum fixed height like 64, and you don't to have to worry about making larger. You can also check your attached GIF row height doesn't change.
Second option is wrapping Text with FittedBox widget, or using auto_size_text.
Related
I tried adding a width to the container but it didn't do anything. By default it fills the page? Not sure what's happening. Do I have to use MediaQuery somewhere? I want the post to be the same size on both the phone and the tablet. I'm not great with explaining so I added a photo to help.
Here's my code:
body: ListView(
children: [
Container(
height: 132,
decoration: BoxDecoration(borderRadius: BorderRadius.circular(15)),
child: Card(
margin: EdgeInsets.all(10),
elevation: 8,
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15)),
child: Column(
children: <Widget>[
ListTile(
leading: CircleAvatar(
backgroundColor: Color(0xFF192A4F),
),
title: SizedBox(
height: 39,
child: TextButton(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.start,
children: [
AutoSizeText(
'Username',
style: TextStyle(
color: Color(0xFF192A4F),
fontSize: 16,
fontWeight: FontWeight.bold),
maxLines: 2,
overflow: TextOverflow.ellipsis,
),
],
),
style: TextButton.styleFrom(
padding: EdgeInsets.zero,
minimumSize: Size(50, 30),
alignment: Alignment.centerLeft),
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => SeventhRoute(),
),
);
},
),
),
),
Divider(
height: 10,
color: Colors.black26,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: <Widget>[
Row(
children: <Widget>[
Icon(Icons.comment_outlined,
color: Colors.black),
SizedBox(width: 8.0),
Text(
'Comment',
style: TextStyle(color: Colors.black),
),
],
),
Row(
children: <Widget>[
Icon(Icons.bookmark_outline, color: Colors.black,),
SizedBox(width: 8.0),
Text('Bookmark', style: TextStyle(color: Colors.black),),
],
),
],
),
SizedBox(
height: 12.0,
)
],
),
),
),
],
),
double width = MediaQuery.of(context).size.width;
you can get screen width from here. Then add a logic
As example if screen width of right phone is 500 and left is 1000,
then you can set
if the screen width is <= 500 ,
set the container width as screen width
otherwise
set the container width as 500.
---Additionally---
You can get screen orientation like this
var isPortrait = MediaQuery.of(context).orientation == Orientation.portrait
The reason specifying the width is ignored is because you didn't specify what should happen with the smaller card. The framework doesn't know if it should be aligned left, center, right, etc. To fix this, you can wrap your Card, Container, or even the whole ListView in a Center (or Align) widget.
Based on your images i can see that only the width is changing, height is constant, so i'd suggest in your container give width: MediaQuery.of(context).size.width;
And of course some padding to that container.
It looks like you want that widget to take as much width as it can, but no more than 500px wide. Trivial:
ConstrainedBox(
child: YourChild(...),
constraints: BoxConstraints(maxWidth: 500),
),
I'm trying to fit text to the container with FittedBox, but it doesn't work. On device text goes to the right and it does not break to the next line. (On device I have right overflowed warning).
Do someone know what's wrong with this code? I think there is some issue with Row and Column combination so then FittedBox doesn't affect text, but I'm not sure.
Thanks.
class HomePage extends StatelessWidget {
final Greetings greetings = new Greetings();
#override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: [
SafeArea(
child:
SizedBox(height: MediaQuery.of(context).size.height * 0.025)),
Center(child: greetings),
/*ListView(
children: [greetings],
)*/
],
),
);
}
}
class Greetings extends StatelessWidget {
#override
Widget build(BuildContext context) {
var bought = true;
var color;
if (bought) {
color = Colors.blue[700];
} else {
color = Colors.red;
}
return Container(
decoration: BoxDecoration(
color: color, borderRadius: BorderRadius.all(Radius.circular(10))),
height: MediaQuery.of(context).size.height * 0.40,
width: MediaQuery.of(context).size.width * 0.85,
child: Padding(
padding: new EdgeInsets.all(20),
child: Row(
//mainAxisAlignment: MainAxisAlignment.start, --> NOT NECESSARY
children: [
Column(
//mainAxisAlignment: MainAxisAlignment.start, --> NOT NECESSARY
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'hi',
style: TextStyle(
color: Colors.white,
fontSize: 20,
fontWeight: FontWeight.bold),
),
SizedBox(height: 10),
FittedBox(
fit: BoxFit.contain,
child: Text(
'kodsajhnidoasdoisahioasdohiasdhioúsadiophas',
style: TextStyle(
color: Colors.white,
fontSize: 15,
fontWeight: FontWeight.normal),
)),
],
)
],
)));
}
}
At first FittedBox does not break the text to the new line, it just decrease or increases the fontSize on it. secondly you are now providing any constraints for the FittedBox wrap it with a container and set its width.
Just use Flexible Widget to make it parent for Column
Flexible(
child: Column(
//...
));
Full Example:
Container(
decoration: BoxDecoration(
color: color, borderRadius: BorderRadius.all(Radius.circular(10))),
height: MediaQuery.of(context).size.height * 0.40,
width: MediaQuery.of(context).size.width * 0.85,
child: Padding(
padding: new EdgeInsets.all(20),
child: Row(
//mainAxisAlignment: MainAxisAlignment.start, --> NOT NECESSARY
children: [
Flexible(
child: Column(
//mainAxisAlignment: MainAxisAlignment.start, --> NOT NECESSARY
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
'hi',
style: TextStyle(
color: Colors.white,
fontSize: 20,
fontWeight: FontWeight.bold),
),
SizedBox(height: 10),
FittedBox(
fit: BoxFit.contain,
child: Text(
'kodsajhnidoasdoisahioasdohiasdhioúsadiophas',
style: TextStyle(
color: Colors.white,
fontSize: 15,
fontWeight: FontWeight.normal),
)),
],
),
)
],
),
),
);
Row Widget causing the issue as it is taking full space horizontally, by adding Flexible it can shrink/grow according to text.
I am trying to make my UI scrollable but when i add the SingleChildScrollView i get this white screen not showing anything at all.I should erase the Column from the begining?Use a container?I already search on internet but i don't know what to add.
Here is my code, please tell me what i can erase or add to make it work ..
class _UserProfilesState extends State<UserProfiles> {
#override
#override
Widget build(BuildContext context) {
return Scaffold(
body: SingleChildScrollView(
child: Column(
children: <Widget>[
Expanded(
child: Stack(
children: <Widget>[
Padding(
padding:
EdgeInsets.symmetric(horizontal: 10.0, vertical: 40.0),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
IconButton(
icon: Icon(Icons.arrow_back),
iconSize: 30.0,
color: Colors.black,
onPressed: () => Navigator.pop(context),
),
])),
Positioned(
left: 24,
top: MediaQuery.of(context).size.height / 6.5 - 28,
child: Container(
height: 84,
width: 84,
//profilepic
child: CircleAvatar(
radius: 10,
backgroundImage: NetworkImage(widget.avatarUrl != null
? widget.avatarUrl
: "https://icon-library.com/images/add-image-icon/add-image-icon-14.jpg"),
),
),
),
Positioned(
right: 24,
top: MediaQuery.of(context).size.height / 6.5 + 16,
child: Row(
children: <Widget>[
Container(
height: 32,
width: 100,
child: RaisedButton(
onPressed: () {
Navigator.of(context).push(MaterialPageRoute(
builder: (context) => ChatScreen(
serviceProviderId:
widget.serviceProviderId,
userName: widget.userName,
avatarUrl: widget.avatarUrl,
)));
},
color: Colors.black,
textColor: Colors.white,
child: Text(
"Message",
style: TextStyle(fontWeight: FontWeight.bold),
)),
),
SizedBox(
width: 16,
),
Container(
height: 32,
width: 32,
decoration: BoxDecoration(
image: DecorationImage(
image: NetworkImage(
"https://lh3.googleusercontent.com/Kf8WTct65hFJxBUDm5E-EpYsiDoLQiGGbnuyP6HBNax43YShXti9THPon1YKB6zPYpA"),
fit: BoxFit.cover),
shape: BoxShape.circle,
color: Colors.blue),
),
],
),
),
Positioned(
left: 24,
top: MediaQuery.of(context).size.height / 4.3,
bottom: 0,
right: 0,
child: Container(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
Text(widget.userName,
style: TextStyle(
color: Colors.black,
fontWeight: FontWeight.bold,
fontSize: 22,
)),
SizedBox(
height: 4,
),
Padding(
padding: const EdgeInsets.all(1.0),
child: Text(
widget.address == "default"
? "No Address yet"
: "${widget.address}",
style: TextStyle(
color: Colors.black,
fontSize: 12,
),
)),
Padding(
padding: const EdgeInsets.all(1.0),
child: Text(
"${widget.categoryName}",
style: TextStyle(
color: Colors.black,
fontSize: 12,
),
)),
],
),
))
],
))
],
),
),
);
}
}
Using Spacer() might also cause this issue
The reason why your UI became white is that SingleChildScrollView allows it child to take as much space as possible. In your Column, one of your children is Expanded, Expanded tries to take as much space as possible. You are making your UI take an infinite amount of space because of that. That's the reason why you are seeing a white screen. The solution here would be to remove Expanded.
according to me and the knowledge I have this happened because the singlechildscrollview here tries to take as much height as it can take so It is creating an issue to solve this wrap the singlechildscrollview in a container and give height&width to the container it solved in my case
Thanks...
I faced similar issues, but after much research I got it working, by ensuring that the body of the scaffold be a Container that defines it's height and width, or Column. After which you can wrapped your any of these with a SingleChildScrollView.
However, in an attempt to insert an Expanded widget as child element, the expanded widget will look for bounded heights of it's parents/root element. And if it doesn't found any, it will thrown an error. A good example is if the root element is a column or a container with an unbounded height. Which is your case, looking at your code
Trying to get the Column within the Row to take the full height of the Row (as seen in the image)
The Column takes the min height needed but surely there's a way to make it expand the full height of the Row widget? I tried using Expanded but that didn't work.
I want it to take the full height of the Row as then the elements within the Column can be alignment according to mainAxisAlignment: MainAxisAlignment.spaceBetween but at the moment as it takes the min height the elements are all be bunched up together.
return new Container(
child: ListView(
children: <Widget>[
Column(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Padding(
padding: EdgeInsets.all(20),
child: Text(
client.days[0].dayofLog,
style: TextStyle(
fontSize: 35,
color: Colors.black,
fontWeight: FontWeight.bold),
)),
Row(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
new AnimatedCircularChart(
key: _chartKey,
size: const Size(300.0, 300.0),
initialChartData: buildGraphElements(client),
chartType: CircularChartType.Radial,
edgeStyle: SegmentEdgeStyle.round,
percentageValues: true,
),
Expanded(
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
new Container(
height: 42.0,
width: 42.0,
color: Colors.red,
),
new Container(
height: 42.0,
width: 42.0,
color: Colors.red,
),
new Container(
height: 42.0,
width: 42.0,
color: Colors.red,
),
new Container(
height: 42.0,
width: 42.0,
color: Colors.red,
),
],
)
)
],
)
],
)
],
));
row size image
expanded size image
Try using:
final screenWidth = MediaQuery.of(context).size.width;
final screenHeight = MediaQuery.of(context).size.height;
and at the time of assigning them to your variables you can multiply them by the% of screen you create as necessary.
If possible post a photo with the expected result.
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.