[Flutter] Adding Fonts to Flutter Application

Adding fonts to the Flutter application is quite simple.

Configuration

Create a fonts folder in the project and push the font file that you want to use.

Let's add the fonts to the project's configuration file.

# pubspec.yaml

...
# The following section is specific to Flutter.
flutter:
  ...
  # To add custom fonts to your application, add a fonts section here,
  # in this "flutter" section. Each entry in this list should have a
  # "family" key with the font family name, and a "fonts" key with a
  # list giving the asset and other descriptors for the font. For
  # example:
  # fonts:
  #   - family: Schyler
  #     fonts:
  #       - asset: fonts/Schyler-Regular.ttf
  #       - asset: fonts/Schyler-Italic.ttf
  #         style: italic
  #   - family: Trajan Pro
  #     fonts:
  #       - asset: fonts/TrajanPro.ttf
  #       - asset: fonts/TrajanPro_Bold.ttf
  #         weight: 700
  #
  # For details regarding fonts from package dependencies,
  # see https://flutter.dev/custom-fonts/#from-packages
  fonts:
    - family: Sans
      fonts:
        - asset: fonts/NotoSans-Regular.ttf
          weight: 400

Creating Widget for Fonts

Create a file for the font widget.

import 'package:flutter/material.dart';

class FontWidgetApp extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _FontWidgetApp();
  }
}

class _FontWidgetApp extends State<FontWidgetApp> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('Font Widget')),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: const <Widget>[
            Text('Hello Flutter',
              style: TextStyle(
                fontFamily: 'Sans', fontSize: 30, color: Colors.blue
              ),
            ),
          ],
        ),
      ),
    );
  }
}

Fonts are used in the style of Text() widget.

Rendering Texts

Let's use this widget.

// lib/main.dart

import 'package:flutter/material.dart';
import 'fontWidget.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Calculator',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: FontWidgetApp()
    );
  }
}