Скачать или смотреть How to Style a Specific Item in Material UI with a Custom Class playing

Discover how to customize the appearance of a playing item in your Material UI music playlist by using a custom class effectively.
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This video is based on the question https://stackoverflow.com/q/64770724/ asked by the user 'Elley' ( https://stackoverflow.com/u/9695873/ ) and on the answer https://stackoverflow.com/a/64773359/ provided by the user 'Sargis Mkoyan' ( https://stackoverflow.com/u/14612509/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Customizing Your Music Playlist with Material UI

Creating a visually appealing music playlist interface can enhance user experience significantly. If you're working with Material UI and React, you may find yourself needing to style specific items based on their current status, like highlighting the currently playing track. This post will guide you through customizing the appearance of a specific item using a custom class, addressing common pitfalls and providing clear steps to implement your solution.

The Problem: Styling the Active Item

In this scenario, you want to manage the appearance of a music playlist where you would like to visually distinguish the currently playing item within a Material UI table. Here's the workflow you attempted:

You initially used the selected property but wanted a better way to keep your design aligned with a custom theme.

You decided to use a custom class called playing for the currently active item.

However, when you tried to add this class directly to the styles using withStyles, you encountered an error due to improper implementation.

The Error Explained

When setting the class &.playing in your styles, you received the following error message:

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

This error indicates that Material UI does not recognize the custom class because it wasn't placed within the correct structure of your component's style definition.

The Solution: Correctly Apply Custom Class Styling

The way to effectively use the playing class is to place it within the root definition of your styled component. Here’s how to do it right:

Step-by-Step Implementation

Define the Styled Component: Use the withStyles higher-order component to create a styled version of TableCell from Material UI.

Adjust the Styles: Move the &.playing style rule inside the root object of your styles.

Here is the corrected code snippet:

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

Explanation of the Code

StyledTableCell: This is the custom styled cell that we are defining.

&.playing: This line specifies that when the class playing is applied to the root element, it will have a specified background color (e.g., # ccc). By placing it inside the root, Material UI can recognize and apply the class properly.

Other Styles: The additional styles for head and body are retained and can be customized according to your theme design.

Conclusion

By following the corrected approach to implement a custom class in Material UI, you can effectively differentiate the currently playing item within your music playlist. This not only enhances visibility for users but also maintains the aesthetic coherence of your overall design theme.

With this method, feel free to explore additional styling for various states of your playlist items to create a dynamic and engaging user experience. Happy coding!