二维码生成

https://pub.dev/packages/qr_flutter

qr_flutter: ^4.0.0

二维码扫描 https://pub.dev/packages/barcode_scan2

barcode_scan2: ^4.2.0

引入

import 'package:barcode_scan2/platform_wrapper.dart';

var result = await BarcodeScanner.scan();
print(result.type); // The result type (barcode, cancelled, failed)
print(result.rawContent); // The barcode content
print(result.format); // The barcode format (as enum)
print(result.formatNote); //