So if I put a lot of text in a widget card the text will exceed the card widget and I can t see anymore the rest of it.
Only if I manually the size of each card it will show all the text.
Is it possible to dynamically extend the CARD widget height size based on the text in the card?
For example, no matter how much text I put there the height of the card it will extend in order to show all the text in it.
The code:
Widget _card(
{Color primary = Colors.redAccent,
String imgPath,
String chipText1 = '',
String chipText2 = '',
Widget backWidget,
Color chipColor = LightColor.orange,
bool isPrimaryCard = false}) {
return Container(
height: isPrimaryCard ? 500 : 500,
width: isPrimaryCard ? width * .90 : width * .90,
margin: EdgeInsets.symmetric(horizontal: 10, vertical: 20),
decoration: BoxDecoration(
color: primary.withAlpha(200),
borderRadius: BorderRadius.all(Radius.circular(20)),
boxShadow: <BoxShadow>[
BoxShadow(
offset: Offset(0, 5),
blurRadius:
10,
color: LightColor.lightpurple.withAlpha(20))
]),
child: ClipRRect(
borderRadius: BorderRadius.all(Radius.circular(20)),
child: Container(
child: Stack(
children: <Widget>[
backWidget,
Positioned(
top: 20,
left: 10,
child: CircleAvatar(
backgroundColor: Colors.transparent,
backgroundImage: NetworkImage(imgPath),
)),
Positioned(
top: 30,
left: 20,
child: _cardInfo(chipText1, chipText2,
LightColor.titleTextColor, chipColor,
isPrimaryCard: isPrimaryCard),
)
],
),
),
));
}
You might want to use a ConstrainedBox. It allows you to set a minimum height, but can expand if needed :
Card(
child: ConstrainedBox(
constraints: BoxConstraints(
minHeight: 100,
),
child: Text("")
)
)
Related
i'm a beginner in flutter and still trying to figure my way around. So i'm trying to build this app(i attached the image below), but I'm finding it difficult to get the gridview into a container and curve the edges of the container or include a border. I tried using Flexible instead to wrap the gridview, but i can't curve the edges with that or put a border.
import 'package:general_quizz/models/first_screen_data.dart';
import 'package:general_quizz/widgets/sectionBoxed.dart';
class Sections extends StatelessWidget {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('quizz app'),
),
body: Column(
children: [
Container(
width: double.infinity,
height: 200,
alignment: Alignment.center,
decoration: BoxDecoration(
color: Colors.redAccent,
),
child: Text('Quizz app')),
Container(
decoration: BoxDecoration(
color:Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(50),
topRight: Radius.circular(50),
),
),
Flexible(
child: GridView(
children: DUMMY_CATEGORIES
.map(
(catData) => SectionBoxed(
catData.title,
catData.color,
catData.id,
),
)
.toList(),
gridDelegate: SliverGridDelegateWithMaxCrossAxisExtent(
maxCrossAxisExtent: 200,
childAspectRatio: 3 / 2,
crossAxisSpacing: 20,
mainAxisSpacing: 20,
),
),
),
],
),
);
}
}```
This is what I'm trying to recreate. [this][1]
[I'm trying to recreate this][2]
[1]: https://i.stack.imgur.com/GSl11.jpg
[2]: ![]https://i.stack.imgur.com/3fWCz.jpg
you have to use Container widget like this:
Container(
child:...,
height:200,
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(20),
topRight: Radius.circular(20),
)),
);
I am trying to use SliverAppBar. The layout was fine on the phone devices. However, when I use the iPad to test the layout, it seems that the height of the AppBar does not change, and it could not show the title text properly .
When I collasped the AppBar:
I tried too add the bottom attribute to the SliverAppBar, but it doesn't works too.
bottom: PreferredSize(
preferredSize: Size.fromHeight(60.0),
child: Text(''),
),
and the result looks like this:
the title text is still restricted with an invisible height.
my code:
new SliverAppBar(
expandedHeight: Adapt.px(220.0),
floating: false,
elevation: 0.0,
pinned: true,
primary: true,
centerTitle: true,
title: Text("TITLE",
style: TextStyle(
color: Colors.white,
fontSize: Adapt.px(45.0),
fontFamily: "pinfon",
fontWeight: FontWeight.w900,
letterSpacing: 1.0)),
backgroundColor: Colors.black45,
brightness: Brightness.dark,
bottom: PreferredSize(
preferredSize: Size.fromHeight(60.0),
child: Text(''),
),
flexibleSpace: new FlexibleSpaceBar(
background: Opacity(
opacity: 0.5,
child: new Stack(
fit: StackFit.expand,
children: <Widget>[
new Image.asset(
"assets/images/back.jpg",
fit: BoxFit.fitWidth,
),
],
),
),
),
),
I have tested the sample code you have provided and it seems that the layout is working fine when with an iPad Air - 4th generation - 14.0 emulator.
Though, I'm not able to see your complete code. I've just reused the minimal code you have provided and created a complete example to be able to see the output.
Here is my sample code:
import 'package:flutter/material.dart';
void main() => runApp(SilverAppBarExample());
class SilverAppBarExample extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
body: CustomScrollView(
slivers: <Widget>[
new SliverAppBar(
expandedHeight: 220.0,
floating: false,
elevation: 0.0,
pinned: true,
primary: true,
centerTitle: true,
title: Text("TITLE",
style: TextStyle(
color: Colors.white,
fontSize: 45.0,
fontFamily: "pinfon",
fontWeight: FontWeight.w900,
letterSpacing: 1.0)),
backgroundColor: Colors.black45,
brightness: Brightness.dark,
bottom: PreferredSize(
preferredSize: Size.fromHeight(60.0),
child: Text(''),
),
flexibleSpace: new FlexibleSpaceBar(
background: Opacity(
opacity: 0.5,
child: new Stack(
fit: StackFit.expand,
children: <Widget>[
new Image.asset(
"assets/background.jpg",
fit: BoxFit.fitWidth,
),
],
),
),
),
),
new SliverList(
delegate: new SliverChildListDelegate(_buildList(50))),
],
),
),
);
}
List _buildList(int count) {
List<Widget> listItems = List();
for (int i = 0; i < count; i++) {
listItems.add(new Padding(
padding: new EdgeInsets.all(20.0),
child: new Text('Item ${i.toString()}',
style: new TextStyle(fontSize: 25.0))));
}
return listItems;
}
}
Output using iPad Air - 4th generation - 14.0 emulator
Expanded:
Shrinked:
It seems that the SliverAppBar is working fine.
I've also tested it in an iPhone emulator for verification.
iPhone SE - 2nd generation - 14.0
Expanded:
Shrinked:
Here is a live output:
Maybe if you could provide the whole code you've created we will be able to check it on our end.
someone help me please enter image description here
https://imgur.com/yGEzU2n
i need the box resized automatically fot the content.
i'm new in flutter any suggestions?
bodyWidget(BuildContext context) => Stack(
children: <Widget>[
Positioned(
height: MediaQuery.of(context).size.height / 1.5, //Altura del box cone squinas redondeadas
width: MediaQuery.of(context).size.width - 20,
left: 10.0,
top: MediaQuery.of(context).size.height * 0.1,
child: Card(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15.0),
),
child: Column(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: <Widget>[
SizedBox(
height: 130.0, // espacion entre el texto de la descripcion y la foto del producto
),
Use resizeToAvoidBottomPadding: false . Read about it here.
First Solution:
you usually need to provide a scroll widget on top of your widgets because if you try to open the keyboard or change the orientation of your phone, flutter needs to know how to handle the distribution of the widgets on the screen.
Please review this resource, you can check the different options that flutter provide Out of the box, and choose the best option for your scenario.
Scrolling
Second Option:
resizeToAvoidBottomPadding: false
That should make the error disappear
You can see through a sample code :
appBar: new AppBar(title: new Text('Create A Parking Slot')),
body: new Center(
child: new SingleChildScrollView(
child: new Container(
margin: EdgeInsets.fromLTRB(10.0, 20.0, 10.0, 10.0),
color: Colors.white,
child: new Column(children: <Widget>[
new TextField(
decoration: InputDecoration(labelText: "Title*"),
),
new TextField(
decoration: InputDecoration(labelText: "Available Space in Sqft*"),
),
new TextField(
decoration: InputDecoration(labelText: "Available Space*"),
),
new TextField(
decoration: InputDecoration(labelText: "Address*"),
),
new TextField(
decoration: InputDecoration(labelText: "Contact Number*"),
),
new ListTile(
title: const Text('Select Your Plan'),
trailing: new DropdownButton<String>(
value: "Hourly",
onChanged: (String newValue) {
print(newValue);
},
items:
<String>['Hourly', 'Weekly', 'Monthly'].map((String value) {
return new DropdownMenuItem<String>(
value: value,
child: new Text(value),
);
}).toList(),
),
),
new Container(
height: 1.0,
width: width,
color: Colors.grey,
),
new TextField(
decoration: InputDecoration(labelText: "Rate*"),
),
new UploadImage(),
new RaisedButton(
child: const Text('Create'),
color: Theme.of(context).accentColor,
textColor: Colors.white,
elevation: 4.0,
splashColor: Colors.blueGrey,
onPressed: () {
// Perform some action
//button1(context);
},
)
//
]),
)))
I created Appbar component and calling in every inner page, Now I need to implement dynamic value here for the cart dynamic count when I am trying to call a future function or set state also not working here it gives me error because of state widget i am not using, if anyone has an example for the same that will appreciable.
class AppBarComponent extends AppBar {
final _formKey = new GlobalKey<FormState>();
AppBarComponent({Key key})
: super(
key: key,
backgroundColor: Colors.greenAccent,
centerTitle: true,
title: Image.asset(
'images/logo.png',
width: 120.0,
//height: 20.0,
//fit: BoxFit.cover
),
actions: <Widget>[
new IconButton(
icon: Stack(
children: <Widget>[
Padding(
padding: const EdgeInsets.only(right: 8.0,top: 4.0),
child: Icon(Icons.shopping_cart,color: Colors.white,),
),
Positioned(
top: 0.0,
right: 1.0,
child: new Stack(
children: <Widget>[
Icon(Icons.brightness_1, size: 16.0, color: Colors.red[800]),
Positioned(
top: 1.0,
right: 4.0,
child: new Text("2",
style: new TextStyle(
color: Colors.white,
fontSize: 12.0,
fontWeight: FontWeight.w500)),
)
],
),
)
]
)
),
],
);
}
You could pass an integer like totalCartItems with the constructor.
Like
AppBarComponent({Key key, int totalCartItems})
and use the same later as
Positioned(
top: 1.0,
right: 4.0,
child: new Text(totalCartItems.toString,
style: new TextStyle(
color: Colors.white,
fontSize: 12.0,
fontWeight: FontWeight.w500)),
)
Now if you will update the state of totalCartItems in your state class, the same will be reflected in your appBar. Just make to a single instance to totalCartItems.
I have a problem with my Flutter Layout.
I have a simple container with a Margin right and left of 20.0
Inside this container i have another container.
But this container does not fit to the parent container only on the left side.
I dont know why this happens.
Here is my Code:
#override
Widget build(BuildContext context) {
return new Scaffold(
backgroundColor: Colors.white,
body: new Container(
margin: new EdgeInsets.symmetric(horizontal: 20.0),
child: new Container(
)
),
);
}
Screenshot of the Problem
You can use left and right values :)
#override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.white,
body: Container(
margin: const EdgeInsets.only(left: 20.0, right: 20.0),
child: Container(),
),
);
}
You can try: To the margin of any one edge
Container(
margin: const EdgeInsets.only(left: 20.0, right: 20.0),
child: Container()
)
You can try :To the margin of any all edge
Container(
margin: const EdgeInsets.all(20.0),
child: Container()
)
If you need the current system padding or view insets in the context of a
widget, consider using [MediaQuery.of] to obtain these values rather than
using the value from [dart:ui.window], so that you get notified of changes.
Container(
margin: EdgeInsets.fromWindowPadding(padding, devicePixelRatio),
child: Container()
)
Container(
margin: EdgeInsets.all(10) ,
alignment: Alignment.bottomCenter,
decoration: BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
colors: <Color>[
Colors.black.withAlpha(0),
Colors.black12,
Colors.black45
],
),
),
child: Text(
"Foreground Text",
style: TextStyle(color: Colors.white, fontSize: 20.0),
),
),
You can try to set margin in the following ways.
#override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: Colors.white,
body: Container (
// Even margin on all sides
margin: EdgeInsets.all(10.0),
// Symetric margin
margin: EdgeInsets.symmetric(vertical: 10.0, horizontal: 5.0),
// Different margin for all sides
margin: EdgeInsets.fromLTRB(1.0, 2.0, 3.0, 4.0),
// Margin only for left and right sides
margin: const EdgeInsets.only(left: 10.0, right: 10.0),
// Different margin for all sides
margin: EdgeInsets.only(left: 5.0, top: 10.0, right: 15.0, bottom: 20.0),
child: Child
(
...
),
),
);
}