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mobile_scanner flutter blank screen

CoderHomie answered on December 1, 2023 Popularity 1/10 Helpfulness 1/10

answer mobile_scanner flutter blank screen

mobile_scanner flutter blank screen

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/* 
if you get a blank screen after scanning a QR code and then
using Navigator.pop(context, barcode.rawValue) then you might 
be able to fix the problem by setting the detection speed value
to noDuplicates.
*/

// import packages
import 'dart:typed_data'; // needed for Unit8List support
import 'package:flutter/material.dart';
import 'package:mobile_scanner/mobile_scanner.dart';

class AddBox extends StatefulWidget {
  const AddBox({super.key});

  @override
  State<AddBox> createState() => _AddBoxState();
}

class _AddBoxState extends State<AddBox> {
  String barcode_raw_value = 'None';

  @override
  Widget build(BuildContext context) {
    return Scaffold(
        appBar: AppBar(
          backgroundColor: Theme.of(context).colorScheme.inversePrimary,
          title: Text('Add A Box'),
        ),
        body:
          MobileScanner(
            // fit: BoxFit.contain,
            controller: MobileScannerController(
              /// detectionSpeed: DetectionSpeed.normal,
              detectionSpeed: DetectionSpeed.noDuplicates,
              facing: CameraFacing.back,
              torchEnabled: true,
            ),
            onDetect: (capture) {
              final List<Barcode> barcodes = capture.barcodes;
              final Uint8List? image = capture.image;
              for (final barcode in barcodes) {
                debugPrint('Barcode found! ${barcode.rawValue}');
                barcode_raw_value = '${barcode.rawValue}';
              }
              Navigator.pop(context, barcode_raw_value);
            },
          ),
        );
  }
}

Popularity 1/10 Helpfulness 1/10 Language dart

Source: Grepper

Tags: dart flutter screen

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Contributed on Dec 01 2023

CoderHomie

0 Answers Avg Quality 2/10

mobile_scanner flutter blank screen

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