Скачать или смотреть Fixing Flutter Text Color Not Changing When Using a Class

Discover how to resolve the issue of `Flutter` text color not updating through your custom classes for TextStyle.
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This video is based on the question https://stackoverflow.com/q/65649913/ asked by the user 'Chandu Raotole' ( https://stackoverflow.com/u/4298424/ ) and on the answer https://stackoverflow.com/a/65650462/ provided by the user 'Shanto' ( https://stackoverflow.com/u/11230524/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Fix the Issue of Flutter Text Color Not Changing by Class

When working with Flutter, it's not uncommon to run into issues with styling your text, especially when dealing with custom classes for TextStyle. This guide will guide you through a common problem: ensuring the text color changes as expected when defined in a class. If you're new to Flutter and have found yourself struggling with this issue, you're in the right place!

The Problem

You’re attempting to set a custom text color by creating a class, but it seems the color isn’t changing as you expected. You ended up using two separate classes: one for managing the color and the other for defining the text style. The result? Your text color remains unchanged, which can be frustrating for a beginner.

Here’s a snippet of the original attempt you provided:

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

The Solution

To solve this issue, you can make a couple of adjustments to your code. Below, I’ll outline the steps you should take to ensure your text color applies properly.

Step 1: Update Your Color Class

Instead of defining the color as a variable, define it as a const static variable. This minor change will help eliminate any unintended behavior from non-constant variables:

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

Step 2: Modify Your TextStyle Class

In your TextStyle class (CtrBlblStyle), set a default value for the color parameter. This way, you don’t need to pass a color every time; instead, it will use the default color defined in your CtrPublic class if no color is provided:

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Final Code Integration

Below is how your full updated code should look:

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Conclusion

With the updates made to your color and style classes, your text color should now change as expected. It’s essential to remember the importance of using const for static variables and providing default values in your constructors.

If you still face any issues, consider revisiting the Flutter documentation or experimenting with other properties. Happy coding!