I'm currently in the process of integrating a map into my app, which should highlight individual components in color. I use this map (https://simplemaps.com/resources/svg-de), which is already available in a well-designed SVG file. I am now trying to color the individual SVG paths using Flutter Code. I am building on the svg_path_parser package (https://pub.dev/packages/svg_path_parser) and have used the corresponding example. But I am unable to replace the paths from the example with those from my SVG file. This may be due to the fact that my SVG paths are significantly longer than the ones given in the example.
I would be very grateful if you would give me a little help or a suggestion for a better approach.
step 1.add dependency in your pubspec.yaml
dependencies:
flutter_svg: any
step 2.import the flutter svg package in your app
import 'package:flutter_svg/flutter_svg.dart';
step 3. just use like below
SvgPicture.asset(
'assets/images/bm-icon1.svg',
width: 18.0,
height: 18.0,
),
Related
The following UnimplementedError was thrown in parseSvgElement:
The element is not implemented in this library.
Style elements are not supported by this library and the requested SVG may not render as intended.
If possible, ensure the SVG uses inline styles and/or attributes (which are supported), or use a preprocessing utility such as svgcleaner to inline the styles for you.
2
Picture key: AssetBundlePictureKey(bundle: PlatformAssetBundle#e5679(), name: "assets/image/foodigo.svg", colorFilter: null, theme: SvgTheme(currentColor: Color(0xff000000), fontSize: 14.0, xHeight: 7.0))
Not all SVG features are supported by flutter_svg package, as stated here.
You can try to use an online tool to "clean up" your SVG file (search for "SVG clean/optimize") or you can use one of the tools suggested in the same link above (like usvg).
I would suggest usvg if you have a lot of files to process.
You can also use flutter svg provider package for that : https://pub.dev/packages/flutter_svg_provider
I want to use flutter inbuilt icons as assets. So I want default location where all of flutter icons are located in flutter folder of flutter installation.
This would seem to imply that there's a fontFamily named 'MaterialIcons'. Not sure you can get it easily from any part of the Flutter distro, but https://material.io/resources/icons/ will show how to download or reference the font for your material designs.
static const IconData ac_unit_outlined = IconData(0xe005, fontFamily: 'MaterialIcons')
I don't think they are. If you look at the IconData class (https://api.flutter.dev/flutter/widgets/IconData-class.html). You will see that the description says 'A description of an icon fulfilled by a font glyph.'
Taking an example of one of the Icon values:
static const IconData list_alt = IconData(0xe81b, fontFamily: 'MaterialIcons');
I believe what that is telling us is that the Icon is being defined by the position 0xe81b in the Unicode font family called MaterialIcons
Not an answer to the original question, but likely tangentially helpful...
To visually identify & search/filter icons, both from the included MaterialIcons from Google and those created by the Community, check out:
https://materialdesignicons.com/
And to use them, the related pub.dev package for material_design_icons_flutter.
I am Building a Flutter App, and one of the Functionalities includes the following:
1- Generating Qr codes - no problem here if I am showing it on the screen.
2- Generating PDF file, then saving it and sharing it using native device Sharing, No problem here until I tried to include the Qr code in the PDF page!
I have been stuck with this for two days and tried too many approaches to solve this, sadly with no luck.
please help and thank you all in advance.
You can use the Barcode widget from the pdf package. https://pub.dev/packages/pdf
import 'package:pdf/widgets.dart' as pw;
//Barcode widget inside pdf.addPage()
pw.BarcodeWidget(
color: PdfColor.fromHex("#000000"),
barcode: pw.Barcode.qrCode(),
data: "My data",
),
using this package (pdf package) you can use like this -->
final pdf = pw.Document();
pw.BarcodeWidget(
data: "demo",
barcode: pw.Barcode.qrCode(),
width: 100,
height: 50
),
result is:
I have got the following answer from DavBfr / dart_pdf on GitHub and it worked:
Yes, there is a Widget for that:
BarcodeWidget(
barcode: Barcode.qrCode(),
data: 'here is a qrcode',
)
You can use the same widget for Flutter too: https://pub.dev/packages/barcode_widget
I am using the latest library update
dependencies:
flutter_svg: ^0.17.4
Container( height: 150, //color: Colors.blue, width: screenWidth * 0.80, child: SvgPicture.asset( "assets/logo-violeta-NVIAME-login.svg", color: Color(0xFF6327f8), ), ),
------------------------------------------------------------------------
My code worked but I did Hot Restart .. and well I get the following exception
The <style> element is not implemented in this library.
Style elements are not supported by this library and the requested SVG may not render as intended.
If possible, ensure the SVG uses inline styles and/or attributes (which are supported), or use a preprocessing utility such as svgcleaner to inline the styles for you.
Picture key: AssetBundlePictureKey(bundle: PlatformAssetBundle#60537(), name: "assets/logo-violeta-NVIAME-login.svg", colorFilter: ColorFilter.mode(Color(0xff6327f8), BlendMode.srcIn))
════════════════════════════════════════════════════════════════════════════════
I/flutter (26058): unhandled element metadata; Picture key: AssetBundlePictureKey(bundle: PlatformAssetBundle#60537(), name: "assets/logo-violeta-NVIAME-login.svg", colorFilter: ColorFilter.mode(Color(0xff6327f8), BlendMode.srcIn))
It is actually the SVG image that you've used.
As mentioned in the error:
The <style> element is not implemented in this library.
Style elements are not supported by this library and the requested SVG may not render as intended.
If possible, ensure the SVG uses inline styles and/or attributes (which are supported), or use a preprocessing utility such as svgcleaner to inline the styles for you.
flutter_svg package does not support svg with internal css like:
<style>
.....
</style>
Here is an open GitHub issue that indicates it is not yet supported.
Some of the options that you can actually try:
Remove the internal css and write inline css
Use different svg picture
Use a preprocessing utility such as svgcleaner to inline the styles for you. Which is exactly the one you've found as mentioned in the comments. See also this SO post.
Use this tool https://jakearchibald.github.io/svgomg/
But the easiest way is to have your design tool not use CSS if possible.
My workaround: drag and drop the svg files to the Figma design tool and then export all of them to get the standard error-free svg files.
I faced this issue too, then I used 'SVG Cleaner' app to clean and inline SVG code.
By the end it worked properly ^_*
I'm using a library that draws barcodes and under them it drows the barcode number, however it draws text just in black color. I found the code that chooses the color during this operations, however when I try to change this code library from Colors.black to Colors.white and I save it, it doesn't save for some reason. So I suppose there is a different way to modify code from library, but I don't know how.
#Gabriel, You can easily copy .dart files from the package/library you're using to your project and modify the code to your liking. For e.g. if you are using https://pub.dev/packages/toggle_switch, then you can access the source code from the GitHub location of the package in pub.dev and download it from GitHub,
You can then copy .dart files from <project>/lib to your <project>/lib and modify them accordingly. Make sure you add reference in the source code to credit the original developers and add their GitHub link.
Good luck!