How to Change the Icon on NavLink When Active in React Router

Learn how to dynamically update your tab bar icons using React Router. Discover how to change the icon source based on the active route so that your navigation remains intuitive for users.
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This video is based on the question https://stackoverflow.com/q/67346502/ asked by the user 'Aadhit Shanmugam' ( https://stackoverflow.com/u/15651616/ ) and on the answer https://stackoverflow.com/a/67346843/ provided by the user 'Shen' ( https://stackoverflow.com/u/8193467/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Change the Icon on NavLink When Active in React Router

Creating an intuitive navigation system is essential for enhancing user experience in any application. If you're building a mobile-style tab bar using React, you may want to change the icon according to the active route. This feature will significantly improve the usability of your interface. In this post, we will guide you through the process of changing icons in a tab bar based on the active route using React Router.

Understanding the Challenge

In your current setup, you have a tab bar with icons, and you're already able to change the color of the icons when they are active using an .active class. However, you want to go a step further by changing the icon file itself when the corresponding route is active. To achieve this, a good approach involves leveraging the isActive function provided by the NavLink component in React Router.

Solution Overview

The solution involves a few simple steps:

Utilize the isActive function: This function can be passed to the NavLink component to determine if the link is currently active.

Set a state based on the active route: You can manage the active state to conditionally render different icon images.

Step-by-Step Implementation

Let's walk through the implementation process step by step:

1. Import Necessary Components

Make sure you have the required imports in your React component. You will need React, Component, and NavLink from react-router-dom:

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

Note: Include any additional icons you plan to utilize based on the active state.

2. Modify Your NavLink Component

You will modify your existing NavLink components to utilize the isActive function. Here’s how you can adjust the code:

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

3. Implement Logic to Handle Active State

You will want to conditionally set the icon based on whether the route is active. Here's a complete snippet incorporating the logic:

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

4. Finalizing the Implementation

Ensure all icons are imported correctly.

Test your component by navigating to different routes to see the icon change as expected.

Conclusion

By following these steps, you'll have a responsive tab bar that changes icon images based on the active route. This improvement not only makes your application look appealing but also enhances usability, making it easier for users to navigate.

Now you are equipped to change the Icon on NavLink when it is active. Happy coding!

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