![]() CSS property compatibility table for form controls.Adding features to our bouncing balls demo.Making decisions in your code - conditionals.Basic math in JavaScript - numbers and operators.Storing the information you need - Variables.What went wrong? Troubleshooting JavaScript.JavaScript - Dynamic client-side scripting.Typesetting a community school homepage.HTML table advanced features and accessibility.From object to iframe - other embedding technologies.Large font files can significantly increase an app’s loading time, especially when custom fonts are being loadedĪs explored in this article, integrating custom fonts in React Native applications is not just a technical enhancement but a strategic approach to improving user experience. Performance impact: When adding custom fonts in your React Native applications, be mindful of their file size (measured in kb/mb).If not, unexpected errors may occur during development Using unsupported font formats: When working with custom fonts, it’s important to verify that the system you’re working on (iOS, Android, or web) supports the font format you are using (e.g.For example, if you import a font as SourceCodePro-ExtraLight.otf but then load it into the application under a different path or file name, such as /assets/fonts/SourceCodePro-ExtraLight.ttf, this will cause the application to throw an error because there has been a fontFamily name mismatch Mismatched font family names: As discussed in earlier sections, it’s crucial that font family names are consistent.When working with custom fonts in React Native, there might be some drawbacks you’ll encounter: Common pitfalls when working with custom fonts in React Native Otherwise, we render the app component and use the custom font(s) that has been loaded:Īs shown in the simulator output above, the first text that has the default style uses the default fontFamily style, while the following two texts use the SourceCodePro-ExtraLight and SourceCodePro-Light font family that has been used to style the text, respectively. If fontsLoaded is not true, i.e., the fonts specified within the useFonts Hook have not been loaded successfully, we will return a Loading… text. Just like with Google Fonts integration, the useFonts Hook is used to load the font files from the font folder, which returns a true or false value based on whether the font is loaded successfully or not. "SourceCodePro-LightIt": require("./assets/fonts/SourceCodePro-LightIt.otf"), "SourceCodePro-ExtraLight": require("./assets/fonts/SourceCodePro-ExtraLight.otf"), Next, create a file in the root directory and paste the code below inside it: module.exports = from "react-native" Then, paste all the TTF files you copied from the static folder earlier into the fonts folder of your project: Integrating the Google Fonts into the projectĬreate an assets folder in the root directory of your project, with a subfolder called fonts. In the next section, we will go through integrating these fonts’ TTF files into our React Native CLI project. Inside the folder, there is a static folder where all the TTF files reside. The folder will be downloaded as a ZIP file with a font folder. ![]() ![]() In this project, we will demonstrate custom font integration using two fonts: QuickSand and Raleway, which you can find on Google Fonts.įind your desired fonts in Google Fonts, select the styles you want (e.g., Light 300, Regular 400, etc.), and download the entire font folder using the Download all button: Downloading and integrating Google Fonts into our project We’ll go over how to import them and use them in our project. Once the project has been bootstrapped, we will move on to getting the fonts we want to use. Open your project in your preferred IDE to get started. Once the project has been successfully installed, you will see the image below: To bootstrap the React Native CLI project, run the following command in your terminal: npx init CustomFontCLIĬustomFontCLI is the name of our project folder. Google Fonts is a library for free, open source fonts that can be used while designing web and mobile applications. Adding custom fonts to a React Native CLI projectįor our project, we will take a look at how we can add custom fonts to a React Native CLI project by building a basic application using Google Fonts. To follow along, you should be familiar with the basics of React Native or the Expo SDK, including JSX, components (class and functional), and styling. In this guide, we will explore ways to add custom fonts in a React Native app using Google Fonts. Using custom fonts can provide your apps with a unique identity to your project, helping your project stand out in a competitive marketplace. Editor’s note: This article was last updated on 30 October 2023 based on the latest version of React Native (0.72, at the time of writing).įonts are the building blocks of a great user experience.
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