How to bundle asset for mobile apps only and not for Web - flutter

Question

I'm trying to build a Flutter app with support for custom fonts. The quirk is, I ideally only want to bundle the fonts in mobile apps and not on Web without making significant changes to code at build time.
Is there any method?
I added Font Files into assets and pubspec, also used the package google_fonts.

Answer 1

Here's how you can do it:
Create two folders in your project directory: fonts and fonts_web.
Add your font files to the fonts folder.
Update your pubspec.yaml file to include the font files in the assets section:
yaml
flutter:
assets:
- fonts/
Then you need to Install google_fonts package to make it easy and smooth to use custom fonts in your app:
yaml
dependencies:
google_fonts: ^2.1.0
Then nn your code, import google_fonts package, and use GoogleFonts widget to specify custom font:
import 'package:flutter/material.dart';
import 'package:google_fonts/google_fonts.dart';
dart
class MyApp extends StatelessWidget {
#override
Widget build(BuildContext context) {
return MaterialApp(
title: 'My App',
theme: ThemeData(
textTheme: GoogleFonts.openSansTextTheme(),
),
home: MyHomePage(),
);
}
}
For including the fonts only for mobile apps, you need use conditional imports based on platform. Then Replace the assets section in pubspec.yaml file with the code shown below :
yaml
flutter:
assets:
- ${{false ? "ignore" : "fonts/"}}
- ${{true ? "fonts_web/" : "ignore/"}}
Create the fonts_web folder, add an empty ignore file in it. It will prevent your fonts from being included in the web builds.