Absolute positioning on scaffold/screen.
1 - The white container in the 1st photo - how to align this as an absolute position on the bottom of the screen / how is it done as the best method?
2 - The container has to be overlaid on the top of the image.
Tried to give absolute positioning using stack on the screen/scaffold, didn't work.
Use the following code:
class SampleWidget extends StatefulWidget {
const SampleWidget({super.key});
#override
State<SampleWidget> createState() => _SampleWidgetState();
}
class _SampleWidgetState extends State<SampleWidget> {
#override
Widget build(BuildContext context) {
return Scaffold(
body: Container(
decoration: const BoxDecoration(
image: DecorationImage(
fit: BoxFit.cover,
image: NetworkImage(
'https://images.fineartamerica.com/images/artworkimages/mediumlarge/1/mountains-valleys-and-clouds-vertical-panorama-rick-deacon.jpg'))),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: <Widget>[
const SizedBox(
height: 400,
),
Expanded(
child: Container(
width: double.infinity,
padding: const EdgeInsets.symmetric(horizontal: 20.0),
decoration: const BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.only(
topLeft: Radius.circular(20.0),
topRight: Radius.circular(20.0),
),
),
child: const Center(
child: Text(
"The new adventure begin here",
style: TextStyle(fontSize: 22),
)),
),
),
],
),
),
);
}
}
Output:
Related
How do I create a voting progress bar in Flutter that starts from both end, where green extends from left side in green color if people voted YES and red extends from right side in green color if people voted NO . I have tried to find in Pub dev and can't find something like this. Would like to know how to create one as most of the tutorial I found, the progress bar only extends from one side instead of both sides. Something like this to clarify what I want to do
Maybe like this :
Widget _voteWidget(int yesVote, int noVote) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Container(
height: 20,
decoration: const BoxDecoration(
borderRadius: BorderRadius.all(Radius.circular(30)),
),
child: Row(
children: [
Flexible(
flex: yesVote,
child: Container(
decoration: const BoxDecoration(
color: Colors.green,
borderRadius: BorderRadius.only(topLeft: Radius.circular(30), bottomLeft: Radius.circular(30)),
),
),
),
Flexible(
flex: noVote,
child: Container(
decoration: BoxDecoration(
color: Colors.red,
borderRadius: BorderRadius.only(topRight: Radius.circular(30), bottomRight: Radius.circular(30)),
),
),
),
],
),
),
SizedBox(height: 10),
Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text('${yesVote.toString()} Yes'),
Text('${noVote.toString()} Yes'),
],
)
],
),
);
}
use linearprogress indicator , if you want to add any decoration, just wrap with your custom widget
class MyWidget extends StatelessWidget {
int yes = 8736;
int no = 520;
#override
Widget build(BuildContext context) {
return Padding(
padding: EdgeInsets.all(20),
child: LinearProgressIndicator(
minHeight: 20,
color: Colors.green,
backgroundColor: Colors.red,
value: (yes / (yes + no)),
));
}
}
result:
I'm trying to create a simple Container includes;
A text aligned to center left (that text can include 50 characters)
A network image which is aligned to bottom right, rotated a bit, and rounded.
I've written a code like this:
import 'package:flutter/material.dart';
class MyScreen extends StatefulWidget {
static const String idScreen = "myScreen";
#override
_MyScreenState createState() => _MyScreenState();
}
class _MyScreenState extends State<MyScreen> {
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(title: Text("My Screen")),
body: Column(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
width: MediaQuery.of(context).size.width,
height: 100,
alignment: Alignment.bottomRight,
decoration: BoxDecoration(
shape: BoxShape.rectangle,
borderRadius: BorderRadiusDirectional.circular(16.0),
color: Colors.yellow),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: Text(
"Baby",
style: TextStyle(
fontSize: 25,
fontWeight: FontWeight.bold,
),
),
),
Transform(
child: Image.network(
"https://target.scene7.com/is/image/Target/Baby-210913-1631564062108?wid=315&hei=315&qlt=60&fmt=png",
fit: BoxFit.contain,
),
transform: Matrix4.rotationZ(-0.2),
alignment: FractionalOffset.centerRight,
),
],
),
),
),
],
),
);
}
}
But the output is:
In order to avoid white square in image, I tried to add my picture in Transform like:
Container(
width: 50,
height: 50,
decoration: const BoxDecoration(
shape: BoxShape.circle,
image: DecorationImage(
fit: BoxFit.contain,
image: NetworkImage(
"https://target.scene7.com/is/image/Target/Baby-210913-1631564062108?wid=315&hei=315&qlt=60&fmt=png"
)
)
)
But flutter doesn't accept it in Transform widget. How can I solve this?
Also another problem; if I write "Baby" like "Baby Baby Baby Baby Baby Baby Baby Baby ", it gives overflow error. I tried to wrap my Text or Row with Expanded but didn't work. How can I solve this too?
I want to create a layout like this where the users will select and image and it'll take them to another screen like below and the selected image will take about one-third portion of the screen. The rest 2/3rd will be used as a canvas as you can see.
Unfortunately this is what I've got till now:
Here's the entire code:
import 'package:flutter/material.dart';
import 'package:flutter_app/src/components/Canvas.dart';
import 'package:flutter_app/src/components/DrawingArea.dart';
class DetailsPage extends StatelessWidget {
List<DrawingArea> points = [];
final String imagePath;
final String title;
final int index;
DetailsPage(
{#required this.imagePath, #required this.title, #required this.index});
// Display the selected image
Widget displayImage(String imagePath) {
return Container(
child: Expanded(
child: Hero(
tag: 'logo$index',
child: Container(
margin: EdgeInsets.only(top: 20, right: 50),
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(30),
bottomRight: Radius.circular(30)),
image: DecorationImage(
image: AssetImage(imagePath),
fit: BoxFit.cover,
),
),
),
),
),
);
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("This will be the canvas"),
),
body: Container(
child: Column(
children: <Widget>[
displayImage(imagePath),
],
),
),
);
}
}
You have to set height of container which you can set by using MediaQuery as shown below:
Past this function in your code
Widget displayImage(String imagePath) {
return Container(
height: MediaQuery.of(context).size.height / 3,
child: Expanded(
child: Hero(
tag: 'logo$index',
child: Container(
margin: EdgeInsets.only(top: 20, right: 50),
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
bottomLeft: Radius.circular(30),
bottomRight: Radius.circular(30)),
image: DecorationImage(
image: AssetImage(imagePath),
fit: BoxFit.cover,
),
),
),
),
),
);
}
You can use Flexible: https://api.flutter.dev/flutter/widgets/Flexible-class.html
https://youtu.be/CI7x0mAZiY0
Column(children: [
Flexible(
flex: 1
child: Container(color: Colors.blue),
Flexible(
flex: 2
child: Container(color: Colors.green),
),
]);
Not sure if I got you right. Is this what you're trying to get?
Column(
children: [
Expanded(
flex: 1,
child: Image.asset(
'your_image_asset',
fit: BoxFit.cover,
),
),
Expanded(
flex: 2,
child: Placeholder(),
),
],
)
I'm wondering what the best approach could be to achieve the effect of the rounded icon button on the bottom right.
Do notice the icon is transparent and reveals the image background.
I tried using the Stack widget, but I could not position it properly nor get the color to be transparent.
Currently I have this:
class Banner extends StatelessWidget {
final String src;
const Banner(this.src, {Key key}) : super(key: key);
#override
Widget build(BuildContext context) {
return AspectRatio(
aspectRatio: 16 / 9,
child: Stack(children: <Widget>[
Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
color: Colors.white,
),
child: Stack(
children: <Widget>[
Image.network(src),
LayoutBuilder(
builder: (context, constraints) {
var calculatedOverlay = constraints.maxHeight / 3;
return Align(
alignment: Alignment.bottomRight,
child: Container(
decoration: BoxDecoration(
borderRadius: BorderRadius.only(
topLeft: Radius.circular(calculatedOverlay),
),
color: Colors.white,
),
height: calculatedOverlay,
width: calculatedOverlay,
),
);
},
),
],
),
),
Material(
type: MaterialType.transparency,
child: InkWell(
onTap: () {},
),
),
]),
);
}
}
Which results in this:
Thanks in advance.
I'm new to flutter and recently I tried to design a page where I have to put an image on the top of a card with half of it on the card and half of it outside the card, I tried Stack but couldn't design what I wanted!
here is an example of what I'm trying to design.
here is the code that isn't giving the desired result like the image below:
class ContainerWithCircle extends StatelessWidget {
final double circleRadius = 100.0;
final double circleBorderWidth = 8.0;
#override
Widget build(BuildContext context) {
return Stack(
alignment: Alignment.topCenter,
children: <Widget>[
Container(
width: circleRadius,
height: circleRadius,
decoration:
ShapeDecoration(shape: CircleBorder(), color: Colors.white),
child: Padding(
padding: EdgeInsets.all(circleBorderWidth),
child: DecoratedBox(
decoration: ShapeDecoration(
shape: CircleBorder(),
image: DecorationImage(
fit: BoxFit.cover,
image: NetworkImage(
'https://upload.wikimedia.org/wikipedia/commons/a/a0/Bill_Gates_2018.jpg',
))),
),
),
),
Padding(
padding: EdgeInsets.only(top: circleRadius / 2.0),
child: Container(
// Some content
),
),
],
);
}
}
In order to create a layout like the one you specified, you can simply use a Stack and place the card with a padding to the top. Resources for you to look up: Stack, DecoratedBox & CircleBOrder. The following code shows an example implementation:
class ContainerWithCircle extends StatelessWidget {
final double circleRadius = 100.0;
final double circleBorderWidth = 8.0;
#override
Widget build(BuildContext context) {
return Stack(
alignment: Alignment.topCenter,
children: <Widget>[
Padding(
padding: EdgeInsets.only(top: circleRadius / 2.0),
child: Container(
//replace this Container with your Card
color: Colors.white,
height: 200.0,
),
),
Container(
width: circleRadius,
height: circleRadius,
decoration:
ShapeDecoration(shape: CircleBorder(), color: Colors.white),
child: Padding(
padding: EdgeInsets.all(circleBorderWidth),
child: DecoratedBox(
decoration: ShapeDecoration(
shape: CircleBorder(),
image: DecorationImage(
fit: BoxFit.cover,
image: NetworkImage(
'https://upload.wikimedia.org/wikipedia/commons/a/a0/Bill_Gates_2018.jpg',
))),
),
),
)
],
);
}
}