Скачать или смотреть How to Fix the Custom Font Not Applying in Your Flutter App

Struggling to set a custom font in your Flutter applications? This guide tackles the common issues developers face when applying custom fonts and provides step-by-step instructions to ensure your fonts display correctly.
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This video is based on the question https://stackoverflow.com/q/68407324/ asked by the user 'username8492849' ( https://stackoverflow.com/u/13271727/ ) and on the answer https://stackoverflow.com/a/68407675/ provided by the user 'OMi Shah' ( https://stackoverflow.com/u/5882307/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Fixing Custom Fonts in Your Flutter App

If you are trying to enhance the aesthetics of your Flutter app by adding a custom font and it just doesn't seem to apply, you're not alone. Many Flutter developers encounter the issue of their app defaulting to the standard font despite configuring custom fonts in their project files. In this post, we will explore the reasons behind this problem and provide a detailed solution to get your custom fonts up and running smoothly.

The Problem

When you set a custom font in your Flutter application, you typically modify the pubspec.yaml file to include font assets and the main application file (often main.dart) to apply a theme encompassing your font choice. However, if your font still remains unchanged, there may be an underlying programming error in your widget structure.

Example Scenario

Consider the following snippets from a developer's project:

pubspec.yaml file

[[See Video to Reveal this Text or Code Snippet]]

main.dart file

[[See Video to Reveal this Text or Code Snippet]]

In this setup, the app still uses the default font due to the way the MaterialApp is structured.

The Solution

To correct this issue and ensure that your custom font is properly applied, you will need to make some adjustments in your code. Here’s how you can resolve it step-by-step:

Step 1: Remove the Extra MaterialApp Widget

It is crucial to have only one instance of MaterialApp in your Flutter application. In the provided code, two MaterialApp widgets are being used, which can cause confusion and lead to the app not recognizing the font settings specified in MyApp.

Change the main function to use the MyApp widget instead:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Structure Your Widgets Properly

Ensure your custom MaterialApp is the main entry point for your application:

Here is the corrected version of the main.dart file:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Verify File Paths

Additionally, double-check that the paths to the font files specified in your pubspec.yaml are correct and that the font files are indeed included in your project directory.

Conclusion

By ensuring that you only have a single MaterialApp instance and that it references your custom MyApp widget, your fonts should now apply correctly to your Flutter application. This simple oversight can prevent your application from properly displaying the customized designs you intend to implement.

Check your pubspec.yaml file and main.dart, and make these adjustments to enhance the user experience with your beautifully styled app! Happy coding!