Скачать или смотреть How to Parse Barcode Scanner Results in Flutter and Display on a New Screen

Learn how to seamlessly navigate and display scanned `barcode` results in Flutter with step-by-step instructions.
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This video is based on the question https://stackoverflow.com/q/62476517/ asked by the user 'jonah rimsy' ( https://stackoverflow.com/u/8394561/ ) and on the answer https://stackoverflow.com/a/62476651/ provided by the user 'prasad bankar' ( https://stackoverflow.com/u/7366222/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Parse Barcode Scanner Results in Flutter and Display on a New Screen

When developing a barcode scanning application in Flutter, one common challenge is how to display the scanned results on a new screen instead of the same widget. This is particularly useful when implementing features such as a staff ID card scanner, where you want to navigate to a detailed profile page after scanning. In this guide, we’ll explore how to achieve this with a few simple steps.

Understanding the Problem

Imagine you have a barcode scanner app where each scanned barcode represents a unique identifier for a staff member. Upon scanning, you want to display a detailed profile of that staff member on a new page. This is similar to clicking on a to-do item and being directed to its details page. The core of the solution lies in managing Flutter's navigation and passing data between screens.

Implementing the Solution

Let's break the solution down into manageable steps, using your existing code as a foundation.

Step 1: Modify the Scanning Method

In your scanning method, you need to initiate the navigation to the new page (ProfilePage) after getting the scanned result. Here's how to do it:

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

In the above code, the key change is adding the Navigator.of(context).push(...) which allows you to navigate to the ProfilePage while passing the scanned result.

Step 2: Create the Profile Page

Next, let’s set up the ProfilePage to receive and display the scanned data. Update your ProfilePage class to accept the scanned result as a parameter and display it:

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

In this revised ProfilePage, the scanned result is displayed prominently. You can further build on this by adding more complex logic to retrieve and display additional details based on the scanned result.

Conclusion

By following these simple steps, you have effectively set up a barcode scanning solution in Flutter that navigates to a new screen and displays the scanned result. This approach can be tailored easily for various applications, whether it's scanning staff IDs, items in a store, or membership cards. Understanding how to manage navigation and data in Flutter is a powerful skill, and this application is a great way to practice it.

Feel free to explore more features and customize your instances further. Happy coding!