Fixing the Black Screen Issue when Using Navigator.pop() with Custom Page Animations in Flutter

Описание: Discover how to resolve the black screen issue in Flutter when using `Navigator.pop()` after implementing custom animations with `PageRouteBuilder`.
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This video is based on the question https://stackoverflow.com/q/72741342/ asked by the user 'Olumide' ( https://stackoverflow.com/u/17836185/ ) and on the answer https://stackoverflow.com/a/72741343/ provided by the user 'Olumide' ( https://stackoverflow.com/u/17836185/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Understanding the Black Screen Issue in Flutter Navigation

If you have been working with Flutter, you might have encountered an issue where navigating back with Navigator.pop() results in a black screen, especially after implementing a custom page animation using PageRouteBuilder(). This problem can be frustrating, but understanding the root cause will help you address it effectively.

In this post, we'll delve into what causes this black screen to appear and walk through the solution step-by-step.

What Causes the Black Screen?

The black screen issue typically arises when you are managing navigation with named routes but fail to specify the routing name when creating new routes with custom animations. This oversight can lead Flutter to lose track of the route's history, resulting in a blank screen upon popping the route.

Solution: Setting RouteSettings in Your Custom Animation

To fix the black screen issue, you need to ensure that you are properly setting the route name in the RouteSettings of your custom PageRouteBuilder. Here's how to do that:

Step 1: Update Your Custom Page Route

You'll need to modify your existing _noAnimationBuilder method by adding the settings parameter. Here’s the revised code:

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Step 2: Ensure the Application Uses Named Routes

Having your Flutter application set up to utilize named routes is essential. The MaterialApp should define routes using identifier names. Here’s an example setup based on your code:

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Step 3: Navigate Without Issues

With these changes, your navigation actions should work smoothly. Ensure that your button for changing the route correctly utilizes the _noAnimationBuilder, as shown below:

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

Conclusion

By ensuring that your custom page animation includes a proper RouteSettings with a named route, you can eliminate the frustrating black screen issue when using Navigator.pop() in your Flutter applications.

Now, your navigation should perform flawlessly, allowing you and your users to enjoy a smooth experience. If you encounter any more navigation-related challenges, don't hesitate to reach out for guidance!