Any UI developer that builds an application has to deal with fonts. Google Fonts provides a wide range of fonts that can be used to improve the fonts of the User Interface. Flutter provides a Google fonts package that can be used to implements various available fonts. Some fonts that are available for use through the Google fonts package are listed below:
- Roboto
- Open sans
- Lato
- Oswald
- Raleway
In this article, we will build a simple app and implement some Google fonts to it. To do so follow the below steps:
- Add the google_fonts dependency to the pubspec.yaml file.
- Import the dependency to the main.dart file.
- Use the StatelessWidget to give the structure to the application
- Use a StatefulWidget to design the homepage for the application
- Add a text to the body of the app body and apply the fonts
Adding Dependency:
Use the Google fonts dependency in the pubspec.yaml as shown below:
Importing Dependency:
To import the dependency in the main.dart file as below:
import 'package:google_fonts/google_fonts.dart';
Creating the application structure:
Use the StatelessWidget to give a simple structure to the application as shown below:
Dart
class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home: MyHomePage(title: 'GeeksForGeeks'), ); } } |
Designing the Homepage:
To design, the homepage for the application makes use of the StatefulWidget. Initiate the state at 0 that counts the number of clicks on the button that we will be adding to the homepage. To do so use the below:
Dart
class MyHomePage extends StatefulWidget { MyHomePage({Key key, this.title}) : super(key: key); final String title; @override _MyHomePageState createState() => _MyHomePageState(); } class _MyHomePageState extends State<MyHomePage> { int _counter = 0; void _incrementCounter() { setState(() { _counter++; }); } |
Implementing the fonts:
The font that we will be Oswald font and Lato font. In the TextStyle property you can add the same as shown below:
Dart
children: <Widget>[ Text( 'You have pushed the button this many times:', style: GoogleFonts.oswald(textStyle: display1), ), Text( '$_counter', style: GoogleFonts.lato(fontStyle: FontStyle.italic), ), ], ), ), |
Complete Source Code:
Dart
import 'package:flutter/material.dart'; import 'package:google_fonts/google_fonts.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( primarySwatch: Colors.blue, ), home: MyHomePage(title: 'GeeksForGeeks'), ); } } class MyHomePage extends StatefulWidget { MyHomePage({Key key, this.title}) : super(key: key); final String title; @override _MyHomePageState createState() => _MyHomePageState(); } class _MyHomePageState extends State<MyHomePage> { int _counter = 0; void _incrementCounter() { setState(() { _counter++; }); } @override Widget build(BuildContext context) { final TextStyle display1 = Theme.of(context).textTheme.headline4; return Scaffold( appBar: AppBar( title: Text(widget.title), backgroundColor: Colors.green, ), body: Center( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ Text( 'You have pushed the button this many times:', style: GoogleFonts.oswald(textStyle: display1), ), Text( '$_counter', style: GoogleFonts.lato(fontStyle: FontStyle.italic), ), ], ), ), floatingActionButton: FloatingActionButton( onPressed: _incrementCounter, tooltip: 'Increment', child: Icon(Icons.play_arrow), ), ); } } |
Output:
