perfect_scanner 0.0.5

Easy to use qr code scanner that uses google ml kit for for image processing and camera for reading the qr.

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:perfect_scanner/perfect_scanner.dart';
import 'package:permission_handler/permission_handler.dart';

void main() {
  runApp(const MyApp());
}

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

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  @override
  void initState() {
    permissionHandler();
    super.initState();
  }

  permissionHandler() async {
    Permission status = Permission.camera;
    await status.request();
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Builder(builder: (context) {
            return ElevatedButton(
              onPressed: () {
                Navigator.of(context)
                    .push(MaterialPageRoute(builder: (_) => const CamView()));
              },
              child: const Text('Go to'),
            );
          }),
        ),
        // body: Center(
        //   child: Visibility(
        //     visible: true,
        //     child: SizedBox(
        //       width: 200,
        //       height: 200,
        //       child: Stack(
        //         children: [
        //           const Icon(
        //             Icons.image,
        //             size: 200,
        //             color: Colors.green,
        //           ),
        //           GestureDetector(
        //             onTap: () {},
        //             child: Container(
        //               alignment: Alignment.topRight,
        //               child: Icon(Icons.cancel),
        //             ),
        //           ),
        //         ],
        //       ),
        //     ),
        //   ),
        // ),
      ),
    );
  }
}

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

  @override
  State<CamView> createState() => _CamViewState();
}

class _CamViewState extends State<CamView> {
  bool isFlashOn = false;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        actions: [
          IconButton(
            onPressed: () async {
              final image = await ScannerController.getQrFromImage();
              debugPrint(image);
            },
            icon: const Icon(
              Icons.image,
              color: Colors.white,
            ),
          ),
          IconButton(
            onPressed: () async {
              ScannerController.resumeScanning();
              isFlashOn = await ScannerController.toggleFlash();
              setState(() {});
            },
            icon: Icon(
              isFlashOn ? Icons.flashlight_off : Icons.flashlight_on,
              color: Colors.white,
            ),
          ),
        ],
      ),
      body: SizedBox(
        width: MediaQuery.of(context).size.width,
        child: ScannerView(
          qrOverlay: QrOverlay(
            borderColor: Colors.green,
            borderWidth: 15,
            borderRadius: 10,
            cutOutSize: 300,
          ),
          onScan: (image) {
            if (image.isNotEmpty) {
              ScaffoldMessenger.of(context).showSnackBar(
                SnackBar(
                  content: Text('QR DATA : $image'),
                ),
              );
            }
          },
        ),
      ),
    );
  }
}