Question 1

How does fast_qr_reader_view compare to flutter_barcode_scanner?

Accepted Answer

fast_qr_reader_view uses native APIs for better performance and offers a widget-based approach for custom UIs, while flutter_barcode_scanner might provide a simpler, out-of-the-box interface. Choose based on your need for control versus quick integration.

Question 2

Can fast_qr_reader_view scan barcodes from saved photos?

Accepted Answer

No, it's designed exclusively for live camera scanning. For image-based scanning, you'd need to use additional libraries or implement custom logic to process stored images separately.

Question 3

How to customize the scanning delay after detection in fast_qr_reader_view?

Accepted Answer

In the callback function, you can pause scanning using controller.stopScanning and restart it after a delay with Future.delayed, as shown in the example code. This allows precise control over scanning intervals.

Question 4

What barcode formats does fast_qr_reader_view support?

Accepted Answer

It supports multiple formats including QR, PDF417, and CODE39, as listed in the README. You can specify which formats to scan by passing a list to the QRReaderController during initialization.

Question 5

Is fast_qr_reader_view good for production apps?

Accepted Answer

While it offers high performance due to native libraries, the plugin is still under development, so there might be instability or missing features. Evaluate based on your app's tolerance for potential updates and bugs.

Question 6

How to build a custom UI around fast_qr_reader_view?

Accepted Answer

Use the QRReaderPreview widget within your Flutter layout and wrap it with other widgets like AspectRatio, Container, or overlays for buttons and animations, as demonstrated in the example gifs and code snippets.

Fast QR Reader View

What is Fast QR Reader View?

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