mobile_scanner：Flutter 通用条码二维码扫描插件

dependencies:
  mobile_scanner: ^7.2.0

flutter pub get

import 'package:mobile_scanner/mobile_scanner.dart';

MobileScanner(
  onDetect: (result) {
    print(result.barcodes.first.rawValue);
  },
)

final MobileScannerController controller = MobileScannerController(
  cameraResolution: Size(1920, 1080),
  detectionSpeed: DetectionSpeed.normal,
  torchEnabled: true,
  autoZoom: true,
);

MobileScanner(
  controller: controller,
  onDetect: (result) {
    final barcode = result.barcodes.first;
    print('Barcode: ${barcode.rawValue}');
    print('Format: ${barcode.format}');
  },
)

import 'package:flutter/material.dart';
import 'package:mobile_scanner/mobile_scanner.dart';

class ScannerPage extends StatefulWidget {
  @override
  _ScannerPageState createState() => _ScannerPageState();
}

class _ScannerPageState extends State<ScannerPage> {
  MobileScannerController controller = MobileScannerController();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('扫码'),
        actions: [
          IconButton(
            icon: ValueListenableBuilder(
              valueListenable: controller.torchState,
              builder: (context, state, child) {
                return Icon(
                  state == TorchState.off ? Icons.flash_off : Icons.flash_on,
                );
              },
            ),
            onPressed: () => controller.toggleTorch(),
          ),
        ],
      ),
      body: MobileScanner(
        controller: controller,
        onDetect: (capture) {
          final List<Barcode> barcodes = capture.barcodes;
          for (final barcode in barcodes) {
            print('扫描结果: ${barcode.rawValue}');
          }
        },
      ),
    );
  }

  @override
  void dispose() {
    controller.dispose();
    super.dispose();
  }
}