Update Needed: Code Compatibility Issue with Latest Flutter Version

[WajahatKanju]

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Update Needed: Code Compatibility Issue with Latest Flutter Version

Issue Description:

The code provided in the repository for the "Flutter in Action" book seems to encounter compatibility issues with the latest version of Flutter (Dart). As a result, users attempting to utilize the codebase for learning or reference purposes are encountering errors and obstacles due to deprecated methods or changed functionalities.

The rapid evolution of the Flutter framework necessitates periodic updates to code examples and projects to ensure their continued relevance and functionality. However, it appears that the repository has not been updated to align with the recent changes in Flutter, leading to frustration and hindrance for learners and developers.

To maintain the utility and effectiveness of the "Flutter in Action" resources, it would be greatly beneficial to address these compatibility issues promptly. Updating the codebase to adhere to the latest Flutter standards and best practices will not only enhance the learning experience for readers but also demonstrate a commitment to supporting the Flutter community in keeping pace with advancements in the framework.

I encourage the maintainers to prioritize this update effort, either through revising the existing codebase or providing annotations and guidance for adapting the code to the current Flutter environment. This proactive approach will ensure that the "Flutter in Action" repository remains a valuable and reliable resource for Flutter enthusiasts of all levels.

Thank you for your attention to this matter, and I look forward to seeing the repository updated to reflect the latest advancements in Flutter development.