Скачать или смотреть How to Successfully Add a Scrollbar Next to a GridView in Flutter Without Overlaying

Learn how to implement a `Scrollbar` alongside a `GridView` in Flutter, ensuring it remains visible and does not overlay your widget.
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This video is based on the question https://stackoverflow.com/q/77556015/ asked by the user 'Arfeen Yousuf' ( https://stackoverflow.com/u/19026855/ ) and on the answer https://stackoverflow.com/a/77556467/ provided by the user 'Nidhi Jain' ( https://stackoverflow.com/u/21454324/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Adding a Scrollbar Next to a GridView in Flutter

When developing applications using Flutter, it's common to face challenges regarding UI components. One common issue many developers encounter is how to effectively integrate a Scrollbar into a GridView without it overlaying the items in the grid. If you’ve ever found yourself asking, “How do I add a scroll bar beside a widget in Flutter without it interfering with the layout?” you’re in the right place.

The Problem

You may want your Scrollbar to be always visible beside your GridView, ensuring that users can see it while they scroll through the items. However, one of the significant challenges is that the default behavior tends to overlay the Scrollbar on top of the grid, obscuring part of the content. This can be frustrating when you're striving for a clean and user-friendly interface.

The Solution

By modifying the layout of your GridView, you can effectively position the Scrollbar alongside it without any interference. Below, I will guide you step-by-step on how to achieve this.

Step 1: Wrap the GridView with a Scrollbar

First, make sure that your GridView is wrapped in a Scrollbar widget. This allows the scrollbar to track the scrolling of the grid.

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Step 2: Add Padding to the GridView

To avoid the Scrollbar overlaying the GridView, you can add padding to your GridView. This gives room for the Scrollbar on the side. Here’s how you can modify your GridView:

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Complete Example

Here is how your complete Flutter widget will look with the implemented solution:

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Conclusion

By adding padding to the GridView, you can successfully position the Scrollbar beside it without any overlay issues. This technique helps maintain clarity and usability in your application’s interface. Now, you can ensure the scrollbar is always visible and user-friendly.

Feel free to experiment with the padding values to better suit your layout needs. Happy coding!