Question 1

How to set up flutter_mobile_vision for Android barcode scanning?

Accepted Answer

First, add the dependency in pubspec.yaml. Then, add camera permission and the BarcodeCaptureActivity to AndroidManifest.xml. Initialize FlutterMobileVision.start() in initState(), and use FlutterMobileVision.scan() with parameters like flash and autoFocus as shown in the README.

Question 2

Does flutter_mobile_vision support iOS?

Accepted Answer

No, currently flutter_mobile_vision has no implementation for iOS features. The README lists barcode scan, text recognition, and face detection for iOS as 'Future Tasks' and encourages community contributions to add support.

Question 3

Flutter_mobile_vision vs Google's ML Kit for Flutter – which should I use?

Accepted Answer

flutter_mobile_vision is based on the older Google Mobile Vision APIs, while ML Kit is Google's newer, more comprehensive vision toolkit. If you need iOS support and updated features, ML Kit plugins might be better. However, flutter_mobile_vision offers detailed camera controls and is specific to Flutter, but check for compatibility and maintenance.

Question 4

How to customize the camera preview UI in flutter_mobile_vision?

Accepted Answer

The plugin uses its own capture activities (e.g., BarcodeCaptureActivity), so customization is limited. You can adjust parameters like preview size and FPS, but for full UI control, you might need to modify the plugin's native code or look for alternatives with more flexibility.

Question 5

Can flutter_mobile_vision work offline for text recognition?

Accepted Answer

It depends on Google Mobile Vision's capabilities. Google's OCR might require an internet connection for certain features or languages. The plugin itself doesn't specify offline support, so you should verify with Google's documentation for the underlying APIs.

Question 6

What barcode formats does flutter_mobile_vision support?

Accepted Answer

The README mentions specifying types of barcodes with the 'formats' parameter in FlutterMobileVision.scan(). It likely supports common formats like QR code, EAN, UPC, etc., based on Google Mobile Vision's supported barcode formats.

Question 7

How to handle camera permissions in flutter_mobile_vision?

Accepted Answer

You need to add the CAMERA permission to AndroidManifest.xml manually. For runtime permissions, the plugin might handle it internally, but you should also implement Flutter's permission plugins to request access dynamically, as best practices dictate.

Google Mobile Vision

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