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Learn how to resolve scroll issues in Flutter's `showModalBottomSheet` when using `WebView`. Make your content fully accessible and user-friendly.
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This video is based on the question https://stackoverflow.com/q/76881261/ asked by the user 'AndyShubh' ( https://stackoverflow.com/u/22324416/ ) and on the answer https://stackoverflow.com/a/76884199/ provided by the user 'Shubham' ( https://stackoverflow.com/u/17802081/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Make showModalBottomSheet Content Scrollable in Flutter with WebView

Developing a Flutter application often involves crafting user-friendly interfaces that provide seamless interaction. One common challenge developers face is ensuring that content within a showModalBottomSheet is scrollable, especially when integrating widgets like WebView. If you're experiencing this issue, don't worry—this guide will walk you through the steps to make your showModalBottomSheet scrollable, allowing accurate content navigation for your users.

Understanding the Problem

You’re using Flutter’s showModalBottomSheet to display content that includes a WebView. However, you've noticed that when the content exceeds the available height, it becomes non-scrollable, which limits user engagement and accessibility. This can lead to frustration, especially when users need to view content that extends beyond the visible area.

Your initial attempt to wrap the WebViewWidget with a SingleChildScrollView didn’t yield the desired results. This is a common stumbling block, and you’re not alone. Let’s dig deeper to understand what’s happening under the hood.

Key Insight

The primary reason the WebView content isn't scrollable may be due to the showModalBottomSheet being set as draggable. When draggable is enabled, it can obstruct the scroll control on the WebView, limiting users' ability to navigate the web content smoothly. To resolve this, we will disable the drag feature on the showModalBottomSheet.

Step-by-Step Solution

Step 1: Disable Dragging

The first step is to modify your showModalBottomSheet code to disable the drag feature. Update your code by setting enableDrag to false. Here’s how:

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

Step 2: Ensuring Proper Constraints

After making the above change, ensure your WebViewWidget is properly constrained within the Expanded widget. This guarantees that it can take up all remaining space, allowing the SingleChildScrollView to manage scrolling if necessary.

Step 3: Testing the Solution

Once the code modification is complete, test the modal bottom sheet in your application. You should find that the web content within the WebView is now scrollable, making it user-friendly.

Conclusion

Making content within a showModalBottomSheet scrollable when it includes a WebView is essential for enhancing the user experience. By disabling the draggable feature on the modal, you allow the web content to be fully accessible and navigable.

If you continue to encounter issues or have any further questions, feel free to reach out. Happy coding!