flutter 扫码加相册二维码识别_flutter 从相册解码二维码-优快云博客

本文链接：https://blog.youkuaiyun.com/zqwily/article/details/126285888

本文介绍了如何在Flutter应用中实现二维码扫描和从相册选取图片进行二维码识别的功能，覆盖了Android和iOS平台的兼容性问题，帮助开发者集成这两项实用功能。

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import 'dart:developer';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:image_picker/image_picker.dart';
import 'package:permission_handler/permission_handler.dart';
import 'package:qr_code_scanner/qr_code_scanner.dart';
import 'package:toptongpin/app/common/widgets/image/local_image.dart';
import 'package:toptongpin/app/res/colors.dart';
import 'package:toptongpin/app/utils/extensions/size_fit.dart';
import 'package:toptongpin/app/utils/object_util.dart';
import 'package:toptongpin/app/utils/toast_util.dart';
import 'package:scan/scan.dart';

import '../../../utils/permission.dart';

class QRViewExample extends StatefulWidget {
  const QRViewExample({Key? key}) : super(key: key);

  @override
  State<StatefulWidget> createState() => _QRViewExampleState();
}

class _QRViewExampleState extends State<QRViewExample> {
  // Barcode? result;
  // QRViewController? QRcontroller;
  // final GlobalKey qrKey = GlobalKey(debugLabel: 'QR');
  late StateSetter stateSetter;
  IconData lightIcon = Icons.flash_on;
  ScanController controller = ScanController();

  // In order to get hot reload to work we need to pause the camera if the platform
  // is android, or resume the camera if the platform is iOS.
  // @override
  // void reassemble() {