Add Custom Fonts to iOS Apps with SwiftUI: A Simple Guide

Want to elevate your iOS app's design with custom fonts? This simple guide shows you how to seamlessly integrate your favorite fonts into your SwiftUI projects. We'll walk you through the process step-by-step, covering font file preparation, project configuration, and implementation within your code. No more boring system fonts – let's create a visually stunning app together!

Step-by-Step Instructions

1. Download and Prepare Custom Font

   • Download a custom font (e.g., from Google Fonts).
   • Add the font files to your Xcode project's Resources folder.

   

2. Register Font in Info.plist

   • Register the fonts in your project's Info.plist file under 'Fonts provided by application'. Ensure the names match exactly the filenames.

   

3. Create Basic Font Extension

   • Create a SwiftUI extension on the `Font` class.
   • Create a static function (e.g., `Poppins`) within the extension that returns a `Font.custom` with the font name and size.

   

4. Implement Font Style Management

   • Create an enum to manage different font styles (e.g., regular, semibold) and map them to their corresponding filenames.
   • Refactor the static function to use the enum, accepting a `Font.Weight` as a parameter to dynamically select the font style.

   

5. Create Font Size Extension

   • Create another extension, this time on `Font.TextStyle`, to map text styles (e.g., `body`, `largeTitle`) to specific font sizes.

   

6. Apply Custom Font in SwiftUI Views

   • In your SwiftUI views, use the custom `Font` extension to apply the desired font style, weight, and size to your text.

   

Tips

• Double-check that the font names in your Info.plist exactly match the filenames in your Resources folder.
• Using enums for font styles improves code readability and maintainability.
• Extensions provide a clean and organized way to integrate custom fonts into your SwiftUI code.

Common Mistakes to Avoid