当用户点击按钮时,应用会调用scanQRCodeFromImagePath函数,该函数使用Scan.parse方法来扫描指定路径的二维码图片,并将结果显示在文本区域中。 3. 获取并处理扫描结果 扫描结果会通过Scan.parse方法的Future返回。在上面的代码中,我们使用了一个try-catch块来处理可能发生的异常,并通过setState方法来更新UI以显示扫描结果...
classScanQRCodeViewStateextendsState<ScanQRCodeView>{finalList<CameraDescription>_cameras=[];//可用的摄像头集合finalBarcodeScanner _barcodeScanner=BarcodeScanner();//扫码库CameraController?_controller;int _currentCameraIndex=-1;//当前所选的摄像头bool _isChangingCameraLens=false;//正在切换摄像头标记doubl...
detectBarcode.decode(inputImage, options).then((r: Array<scanBarcode.ScanResult>) => { Log.d(TAG, JSON.stringify(r)); if (r.length > 1) { this.openAbility(r, inputImage.uri, result) } else if (r.length === 1) { result.success({ code: "0", value: r[0].originalValue, resu...
QR code (scan code / picture) recognition (AndroidView/UiKitView) DEMO Getting Started import'package:flutter_qr_reader/flutter_qr_reader.dart';// 识别图片finalStringdata =awaitFlutterQrReader.imgScan(File);// 嵌入视图QrReaderView( width:320, height:350, callback: (container) {}, )// 打开...
import 'dart:io'; Future<void> saveImage(File imageFile) async { // 获取应用的文档目录 final appDir = await getApplicationDocumentsDirectory(); final fileName = 'qr_code.png'; // 自定义文件名 final savedImage = await imageFile.copy('${appDir.path}/$fileName'); // 保存成功,可以使用...
QR code (scan code / picture) recognition (AndroidView/UiKitView) DEMO Getting Started import'package:flutter_qr_reader/flutter_qr_reader.dart';// 识别图片finalStringdata=awaitFlutterQrReader.imgScan(File);// 嵌入视图QrReaderView( width:320, height:350, callback:(container) {}, )// 打开手...
catchError((error) { _isScanAvailable = false; }); }); } else { setState(() { _buttonText = 'Start Video Scan'; _barcodeResults = ''; }); _isScanRunning = false; await _controller.stopImageStream(); } } void pictureScan() async { final image = await _controller.takePicture();...
异步交互可能需要一个理想的机会来进行总结。偶尔，在周期结束之前可能会发出一些值。在 Dart 中，您可以...
QR code (scan code / picture) recognition (AndroidView/UiKitView) DEMO Getting Started import'package:flutter_qr_reader/flutter_qr_reader.dart';// 识别图片finalStringdata=awaitFlutterQrReader.imgScan(File);// 嵌入视图QrReaderView( width:320, height:350, callback:(container) {}, )// 打开手...
accessing your device's camera stream, Flutter ZXing can scan QR codes from a camera image, or an image file. Furthermore, this robust Flutter plugin can also scan multiple barcodes simultaneously, amplifying your app's functionality, whether it's a QR Code scanner or a barcode scanner app....