I am using dhiwise to convert my figma prototype into flutter but the header is not appearing and is somehow above the screen. I tried moving it elsewhere but it just puts it outside the header.
current look
what it is supposed to look like
return SafeArea(
child: Scaffold(
backgroundColor: ColorConstant.whiteA700,
body: Container(
height: size.height,
width: size.width,
child: Stack(
children: [
Align(
alignment: Alignment.center,
child: SingleChildScrollView(
child: Container(
height: size.height,
width: size.width,
child: Stack(
alignment: Alignment.topRight,
children: [
Align(
alignment: Alignment.center,
child: Container(
height: size.height,
width: size.width,
decoration: BoxDecoration(
color: ColorConstant.whiteA700,
),
child: Stack(
alignment: Alignment.bottomCenter,
children: [
Align(
alignment: Alignment.topCenter,
child: Container(
width: size.width,
padding: getPadding(
left: 11,
top: 7,
right: 11,
bottom: 7,
),
decoration: BoxDecoration(
color: ColorConstant.blue200,
),
child: Column(
mainAxisSize: MainAxisSize.min,
crossAxisAlignment:
CrossAxisAlignment.start,
mainAxisAlignment:
MainAxisAlignment.start,
children: [
CustomIconButton(
height: 53,
width: 53,
margin: getMargin(
bottom: 276,
),
child: CustomImageView(
svgPath: ImageConstant.imgUser,
the custom image view code, this code was directly from the website itself and I have no idea what any of the code means to do
// ignore_for_file: must_be_immutable
import 'dart:io';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';
class CustomImageView extends StatelessWidget {
///[url] is required parameter for fetching network image
String? url;
///[imagePath] is required parameter for showing png,jpg,etc image
String? imagePath;
///[svgPath] is required parameter for showing svg image
String? svgPath;
///[file] is required parameter for fetching image file
File? file;
double? height;
double? width;
Color? color;
BoxFit? fit;
final String placeHolder;
Alignment? alignment;
VoidCallback? onTap;
EdgeInsetsGeometry? margin;
BorderRadius? radius;
BoxBorder? border;
///a [CustomImageView] it can be used for showing any type of images
/// it will shows the placeholder image if image is not found on network image
CustomImageView({
this.url,
this.imagePath,
this.svgPath,
this.file,
this.height,
this.width,
this.color,
this.fit,
this.alignment,
this.onTap,
this.radius,
this.margin,
this.border,
this.placeHolder = 'assets/images/image_not_found.png',
});
#override
Widget build(BuildContext context) {
return alignment != null
? Align(
alignment: alignment!,
child: _buildWidget(),
)
: _buildWidget();
}
Widget _buildWidget() {
return Padding(
padding: margin ?? EdgeInsets.zero,
child: InkWell(
onTap: onTap,
child: _buildCircleImage(),
),
);
}
///build the image with border radius
_buildCircleImage() {
if(radius!=null) {
return ClipRRect(
borderRadius: radius,
child: _buildImageWithBorder(),
);
}
else{
return _buildImageWithBorder();
}
}
///build the image with border and border radius style
_buildImageWithBorder(){
if(border!=null) {
return Container(
decoration: BoxDecoration(
border: border,
borderRadius: radius,
),
child: _buildImageView(),
);
}else{
return _buildImageView();
}
}
Widget _buildImageView() {
if (svgPath != null && svgPath!.isNotEmpty) {
return Container(
height: height,
width: width,
child: SvgPicture.asset(
svgPath!,
height: height,
width: width,
fit: fit ?? BoxFit.contain,
color: color,
),
);
} else if (file != null && file!.path.isNotEmpty) {
return Image.file(
file!,
height: height,
width: width,
fit: fit ?? BoxFit.cover,
color: color,
);
} else if (url != null && url!.isNotEmpty) {
return CachedNetworkImage(
height: height,
width: width,
fit: fit,
imageUrl: url!,
color: color,
placeholder: (context, url) => Container(
height: 30,
width: 30,
child: LinearProgressIndicator(
color: Colors.grey.shade200,
backgroundColor: Colors.grey.shade100,
),
),
errorWidget: (context, url, error) => Image.asset(
placeHolder,
height: height,
width: width,
fit: fit ?? BoxFit.cover,
),
);
} else if (imagePath != null && imagePath!.isNotEmpty) {
return Image.asset(
imagePath!,
height: height,
width: width,
fit: fit ?? BoxFit.cover,
color: color,
);
}
return SizedBox();
}
}
1- flutter clean
2- flutter pub get
And if it doesn't work with these instructions, I suggest you look at the link below
enter link description here
I hope you specified that image as an asset in the pubspec.yaml.
I mean...
Flutter uses the pubspec.yaml file, located at the root of your project, to identify assets required by an app.
flutter:
assets:
- assets/my_icon.png
- assets/background.png
To include all assets under a directory, specify the directory name with the / character at the end:
flutter:
assets:
- directory/
- directory/subdirectory/
If you already specify path of your image (sometimes you need to hot restart if you add new asset)
please check that svg image was fine by opening it via web. I face the same issues before with svg using SvgPicture I can open svg file on web but not readble in mobile apps. As I remember my error was not valid svg.
This library only supports <defs> and xlink:href references that are defined ahead of their references.
If do so, maybe you can try this one.
save image as PNG from Figma
Import image to Adobe XD
Export to SVG.
Replace current asset with this Adobe XD svg format.
Related
I have a widget(s) to build that looks like this:
Being somewhat new to flutter, I'm drawing a blank on how to achieve the background being filled like that.
I do have my data like so:
enum ProgressKeys {
articles,
meals,
bloodPressure,
mood,
physicalActivity,
weight,
}
class StepProgress {
StepProgress({
required this.displayText,
required this.progress,
required this.count,
});
final String displayText;
final int progress;
int count;
}
final Map<ProgressKeys, StepProgress> programStepCounts = {
ProgressKeys.articles: {
displayText: "Articles Read",
progress: 2,
count: 4,
},
ProgressKeys.meals: {
displayText: "Meals Logged",
progress: 3,
count: 9,
},
// Etc...
}
All I can think of is start with a ListView.builder but I have no idea how to achieve something like this with the background.
You can use LinearProgressIndicator inside a Stack! Heres a code sample:
return Center(
child: Container(
clipBehavior: Clip.hardEdge,
margin: const EdgeInsets.symmetric(horizontal: 20.0),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(20.0),
),
height: 80.0,
width: double.infinity,
child: Stack(
alignment: Alignment.centerLeft,
children: [
Positioned.fill(
child: LinearProgressIndicator(
//Here you pass the percentage
value: 0.7,
color: Colors.blue.withAlpha(100),
backgroundColor: Colors.blue.withAlpha(50),
),
),
const Padding(
padding: EdgeInsets.symmetric(horizontal: 10.0),
child: Text('Hello world'),
)
],
),
),
);
You can pass to LinearProgressIndicator a value between 0 to 1 wich represents the percentage of completition. In the code sample i used 0.7 so its 70% full. It looks like this:
Of course you can change the colors and in the first container you can adjust the border.
I am trying to get a text label with graphics over the image. Labels like new arrival, best seller, limited, on sale just like on the pic attached.
enter image description here
Here's what i think the skeletal layout would be :
return Stack(
children: [
Card(
color: Colors.black54,
child: Image.asset('assets/xyz.png'),
),
Align(
//for bottomRight
alignment: Alignment.bottomRight,
child: Image.asset(
'assets/fireimg.png',
), //can be an SVG converted to png
),
Align(
//for topLeft
alignment: Alignment.topLeft,
child: Image.asset(
'assets/label.png',
), //can be an SVG converted to png
),
],
);
Feel free to give the Padding of your choice.
it has so much code to write , so i will give some examples to achieve that output
in this image ,i mentioned 0 and one .
for all 1
solution 1
you can use image like this way
Stack(
children: [
Container(
width: 200,
height: 200,
color: Colors.amber,// added only for view this example
child:Image() // add Product image here
),
Positioned(
top: 20, //change according to your use case position
left: 0,// change according to your use case position
child: Container(
color: Colors.black, // added only for view this example
decoration: BoxDecoration(image: ),// add label image here
width: 100,
height: 50,
child: Row(
children: [Text('hi')],
),
))
],
)
solution 2
you can use custom paint for label layout
not that
in both solution you have to use stack and position widgets , you can control position according to your use case
for all 0
you can use RotationTransition widgets to achieve this
not that
you have to use stack and position widgets , you can control position according to your use case
for the vertical Text
use this example
String exText = "meta";
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('hi'),
),
body: Container(
width: 200,
height: 200,
color: Colors.amber,
child: Column(
children: exText.characters
.map((e) => Container(
child: Text('$e'),
))
.toList()),
),
out put will be
I simply would like to have a couple of Containers inside a Column but somehow I can not align them correctly... This is my setup:
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
ShimmerContainer(
height: 50,
width: 200,
),
ShimmerContainer(
height: 50,
width: 200,
),
ShimmerContainer(
height: 50,
width: 200,
)
],
),
And somehow my Containers are all aligned in the center. The really weird thing is that if I wrap one of these ShimmerContainers inside a Align with Alignment.centerLeft all other containers are also aligning left. I have no idea why this happens.
This is my ShimmerContainer:
class ShimmerContainer extends StatelessWidget {
final double? height;
final double? width;
final double borderRadius;
const ShimmerContainer({
this.height,
this.width,
this.borderRadius = 0,
});
#override
Widget build(BuildContext context) {
return Shimmer.fromColors(
baseColor: Colors.grey[200]!,
highlightColor: Colors.white,
child: Container(
height: height != null ? height!.scaled : null,
width: width != null ? width!.scaled : null,
decoration: BoxDecoration(
color: white,
borderRadius: BorderRadius.circular(
borderRadius,
),
),
),
);
}
}
Ouput of your code
I added background color to view properly.
I think you should use flutter clean and run again. Else error is happening from parent side.Does it solve your issue?
I am few months into Flutter, Ran into this issue where I have gotten a base64 String from an API, I have decoded the base 64 string and converted it to bytes. When I try to display it on an image widget I get nothing. Below is my code. and a snippet from my console. Thank you.
if (imgString != null) {
_bytesImage = base64.decode(imgString.toString());
print(_bytesImage);
return ClipRRect(
borderRadius: BorderRadius.circular(16),
child: Image.memory(
_bytesImage,
width: 300,
height: 250,
fit: BoxFit.cover,
));
} else {
print("Image String is null");
return SizedBox.shrink();
}
I had the same issue. I just did this.
Added this under Build Widget.
I stored the base64 string in var called _imgString. It was containing some new line characters in it. So I used split function and joined them to get a proper format.
Uint8List _image = base64.decode(_imgString.split('\n').join());
image = Image.memory(
_image,
fit: BoxFit.cover,
);
You can call this image object in your widget tree wherever you want.
For eg.
Container(
margin: const EdgeInsets.all(15.0),
padding: const EdgeInsets.all(3.0),
height: 250.0,
width: 400,
child: SingleChildScrollView(
// for Vertical scrolling
scrollDirection: Axis.vertical,
child: image,
),
),
You can convert a Uint8List to a Flutter Image..
if (imgString != null) {
_bytesImage = BASE64.encode(imgString.toString());
Uint8List bytes = BASE64.decode(_bytesImage);
print(bytes);
return ClipRRect(
borderRadius: BorderRadius.circular(16),
child: Image.memory(
bytes,
width: 300,
height: 250,
fit: BoxFit.cover,
));
} else {
print("Image String is null");
return SizedBox.shrink();
}
How can I assign an image dynamically in flutter ? For example:
final topContent = Stack(
children: <Widget>[
Container(
padding: EdgeInsets.only(left: 10.0),
height: MediaQuery.of(context).size.height * 0.5,
decoration: new BoxDecoration(
image: new DecorationImage(
image: new AssetImage(lesson.imagePath),
fit: BoxFit.cover,
),
)),
Container(
height: MediaQuery.of(context).size.height * 0.5,
padding: EdgeInsets.all(40.0),
width: MediaQuery.of(context).size.width,
decoration: BoxDecoration(color: Color.fromRGBO(58, 66, 86, .9)),
child: SingleChildScrollView(
controller: _scrollController,
child: Center(
child: topContentText,
),
),
),
Positioned(
left: 8.0,
top: 60.0,
child: InkWell(
onTap: () {
Navigator.pop(context);
},
child: Icon(Icons.arrow_back, color: Colors.white),
),
)
],
);
Now the image at the start lesson.imagePath is what I want to change dynamically. I tried to use setState() but it gives me an error:
The expression here is a type of void and cannot be used
image: setState ((){
if (someCondition) {
return new AssetImage(lesson.imagePath);
}
}),
Your setState call is wrong! The most simple way is make your image as state of your widget and update this image inside a setState call. setState method does not returns nothing it just rebuilds your widget.
In your _WidgetState class you declare as member:
AssetImage _imageToShow;
You can provider a initial image inside initState method.
#override
initState(){
_imageToShow = AssetImage('youAssetImage');
}
Your Container widget should be declared as:
Container(
padding: EdgeInsets.only(left: 10.0),
height: MediaQuery.of(context).size.height * 0.5,
decoration: new BoxDecoration(
image: new DecorationImage(
image: _imageToShow,
fit: BoxFit.cover,
),
)),
),
And to update your image with setState call you just need:
void updateImage() {
setState ((){
if (someCondition) {
_imageToShow = new AssetImage(lesson.imagePath);
}
});
}
But remember that something has to call updateImage method.
The above solution can work also you can set an array of names and you can set the same image name in the assets folder and you can dynamically select the image where you want to use.
suppose in your case you have a list of lessons.
var lesson = ['a','b','c'];
In assets, folder give the same name to the images. (Don't forget to update the pubspec.yaml file)
Then in the AssetImage you can give the path which can be chosen dynamically.
image:AssetImage('assets/${lesson[index]}.jpg')
Remember to give the same name to the image like here a,b and c to the image.
Also the same extension to be given like here .jpg
image:AssetImage('assets/${lesson[index]}.jpg')