Скачать или смотреть How to Change the Color of an ElevatedButton in Flutter

Struggling to change the color of the `ElevatedButton` in your Flutter app? Discover the common issues and learn how to resolve them with our easy-to-follow guide!
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This video is based on the question https://stackoverflow.com/q/68059030/ asked by the user 'Nickolay Dudin' ( https://stackoverflow.com/u/12642891/ ) and on the answer https://stackoverflow.com/a/68059248/ provided by the user 'Mobina' ( https://stackoverflow.com/u/9902765/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Change the Color of an ElevatedButton in Flutter: A Simple Solution

If you’re working on a Flutter app and you've encountered issues changing the color of an ElevatedButton, you’re not alone. This is a common problem for developers, especially when working with gradients or complex backgrounds. In this post, we’ll explore the reasons behind this issue and guide you through a straightforward solution.

Understanding the Problem

When you add an ElevatedButton to your Flutter app, you might find that its color doesn’t change as expected. This can occur when:

The button is placed over a gradient background: The gradient might take precedence over the button’s color settings.

The onPressed property is set to null: This makes the button disabled, preventing any style changes from being reflected.

In the example below, the button color struggles to change due to its placement over a gradient background and a null onPressed function:

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

The Solution

To fix the color issue of the ElevatedButton, you need to ensure the button is not disabled and properly apply its styling. Here’s how you can achieve this:

Step 1: Set a Non-Null onPressed Function

The first step to making your button functional and capable of reflecting color changes is to place a valid function in the onPressed parameter. You can set it to an empty function if you don't have a specific action yet:

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

Step 2: Set the Desired Color

Once the onPressed function is in place, you can now change the button's color as required. If you want to use a different color, simply specify it in the style property:

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

Complete Example

Putting it all together, here's your revised ElevatedButton code:

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

Conclusion

By ensuring that the onPressed property is not null and using the appropriate styling options, you can successfully change the color of your ElevatedButton in Flutter, even when working against complex backgrounds. This method keeps your interface interactive and visually appealing.

Keep these tips in mind the next time you encounter styling issues with buttons in your Flutter projects!