zxing 相关问题

ZXing（发音为“zebra crossing”）是一个用Java实现的开源，多格式1D / 2D条形码图像处理库，具有其他语言的端口。它的重点是使用手机上的内置摄像头扫描和解码设备上的条形码，而无需与服务器通信，尽管该库也支持在服务器上使用。

如何在ReactJS中使用zxing实现二维码扫描？

我尝试使用多种方式扫描二维码，例如react-qr-reader、react-qr-scanner，但所有这些都与最新的react版本存在依赖问题。因此我尝试了 zxing ，它有效但无效

reactjs qr-code zxing

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MAUI 的 ZXing（移动条形码扫描仪）

我有一个在xamarin中的项目，我想将其转移到MAUI，但我遇到了一个问题，那就是ZXing.Mobile不适用于MAUI，我已经下载了ZXing.Net.Maui。该项目...

maui zxing zxing.net

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如何将 ZXing.Net.Maui 集成到部分转换的 Xamarin.Android 到 .NET MAUI 项目中以进行 QR/条形码扫描？

我正在将 Xamarin.Android 项目转换为 .NET MAUI。该项目是 WebView 的轻量级包装，UI 主要由用以下语言编写的单独项目处理：

android xamarin.android maui zxing zxing.net

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我可以将 BufferedImage 作为 html 响应返回吗？

我有以下实现来创建QR码并尝试将生成的代码作为html响应返回（要求用户打开或保存生成的图像），而不是保存到目录中的文件。豪...

java spring qr-code barcode zxing

回答 1 投票 0

Android 中的 Zxing 始终处于横向模式

我正在尝试实现一个条形码阅读器。 https://www.youtube.com/watch?v=wfucGSKngq4&list=PLYBH5YZZegIf1DzLtuFmeDFqHYsfw1h1I&index=7&t=232s 我已经遵循了本教程，并且几乎一直...

java android zxing

回答 2 投票 0

为什么 Zxing Maui 条码扫描器在 IOS 上崩溃？

我在一个空项目上使用Zxing条码扫描仪，如下所示： XAML：我在一个空项目上使用 Zxing 条码扫描仪，如下所示： XAML： <ScrollView> <VerticalStackLayout Spacing="25" Padding="30,0" VerticalOptions="Center"> <zxing:CameraBarcodeReaderView x:Name="cameraBarcodeReaderView" /> </VerticalStackLayout> </ScrollView> </ContentPage> C# using ZXing.Net.Maui; namespace CameraTest; public partial class MainPage : ContentPage { int count = 0; public MainPage() { InitializeComponent(); cameraBarcodeReaderView.Options = new BarcodeReaderOptions { Formats = BarcodeFormats.OneDimensional, AutoRotate = true, Multiple = true }; } } MauiProgram.cs using ZXing.Net.Maui; using Microsoft.Extensions.Logging; namespace CameraTest; public static class MauiProgram { public static MauiApp CreateMauiApp() { var builder = MauiApp.CreateBuilder(); builder .UseMauiApp<App>() .UseBarcodeReader() .ConfigureFonts(fonts => { fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular"); fonts.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold"); }); #if DEBUG builder.Logging.AddDebug(); #endif return builder.Build(); } } 信息.plist： <key>NSCameraUsageDescription</key> <string>This app uses barcode scanning to...</string> 但是在 iPhone 14 iOS 16.4 模拟器上运行该应用程序时，我收到以下错误。顺便说一句，我自己没有写一行代码。 Zxing条码出了什么问题？ {System.ArgumentNullException: Value cannot be null. (Parameter 'device') at ObjCRuntime.ThrowHelper.ThrowArgumentNullException(String argumentName) at ObjCRuntime.NativeObjectExtensions.GetNonNullHandle(INativeObject self, String argumentName) at AVFoundation.AVCaptureDeviceInput..ctor(AVCaptureDevice device, NSError& error) at ZXing.Net.Maui.CameraManager.UpdateCamera() at ZXing.Net.Maui.CameraManager.UpdateCameraLocation(CameraLocation cameraLocation) at ZXing.Net.Maui.CameraBarcodeReaderViewHandler.<>c.<.cctor>b__24_1(CameraBarcodeReaderViewHandler handler, ICameraBarcodeReaderView virtualView) at Microsoft.Maui.PropertyMapper`2.<>c__DisplayClass5_0[[ZXing.Net.Maui.ICameraBarcodeReaderView, ZXing.Net.Maui, Version=1.0.2.0, Culture=neutral, PublicKeyToken=null],[ZXing.Net.Maui.CameraBarcodeReaderViewHandler, ZXing.Net.Maui, Version=1.0.2.0, Culture=neutral, PublicKeyToken=null]].<Add>b__0(IElementHandler h, IElement v) at Microsoft.Maui.PropertyMapper.UpdatePropertyCore(String key, IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view) at Microsoft.Maui.Handlers.ViewHandler`2[[ZXing.Net.Maui.ICameraBarcodeReaderView, ZXing.Net.Maui, Version=1.0.2.0, Culture=neutral, PublicKeyToken=null],[UIKit.UIView, Microsoft.iOS, Version=16.4.0.0, Culture=neutral, PublicKeyToken=84e04ff9cfb79065]].SetVirtualView(IView view) at Microsoft.Maui.Handlers.ViewHandler`2[[ZXing.Net.Maui.ICameraBarcodeReaderView, ZXing.Net.Maui, Version=1.0.2.0, Culture=neutral, PublicKeyToken=null],[UIKit.UIView, Microsoft.iOS, Version=16.4.0.0, Culture=neutral, PublicKeyToken=84e04ff9cfb79065]].SetVirtualView(IElement view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Controls.Element.set_Handler(IElementHandler value) at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.LayoutHandler.SetVirtualView(IView view) at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.ILayout, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.LayoutView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Controls.Element.set_Handler(IElementHandler value) at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.ScrollViewHandler.UpdateContentView(IScrollView scrollView, IScrollViewHandler handler) at Microsoft.Maui.Handlers.ScrollViewHandler.MapContent(IScrollViewHandler handler, IScrollView scrollView) at Microsoft.Maui.PropertyMapper`2.<>c__DisplayClass5_0[[Microsoft.Maui.IScrollView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Handlers.IScrollViewHandler, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].<Add>b__0(IElementHandler h, IElement v) at Microsoft.Maui.PropertyMapper.UpdatePropertyCore(String key, IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view) at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IScrollView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[UIKit.UIScrollView, Microsoft.iOS, Version=16.4.0.0, Culture=neutral, PublicKeyToken=84e04ff9cfb79065]].SetVirtualView(IView view) at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IScrollView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[UIKit.UIScrollView, Microsoft.iOS, Version=16.4.0.0, Culture=neutral, PublicKeyToken=84e04ff9cfb79065]].SetVirtualView(IElement view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Controls.Element.set_Handler(IElementHandler value) at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ElementExtensions.ToPlatform(IElement view, IMauiContext context) at Microsoft.Maui.Handlers.ContentViewHandler.UpdateContent(IContentViewHandler handler) at Microsoft.Maui.Handlers.ContentViewHandler.MapContent(IContentViewHandler handler, IContentView page) at Microsoft.Maui.PropertyMapper`2.<>c__DisplayClass5_0[[Microsoft.Maui.IContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Handlers.IContentViewHandler, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].<Add>b__0(IElementHandler h, IElement v) at Microsoft.Maui.PropertyMapper.UpdatePropertyCore(String key, IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.PropertyMapper.UpdateProperties(IElementHandler viewHandler, IElement virtualView) at Microsoft.Maui.Handlers.ElementHandler.SetVirtualView(IElement view) at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.ContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IView view) at Microsoft.Maui.Handlers.ContentViewHandler.SetVirtualView(IView view) at Microsoft.Maui.Handlers.ViewHandler`2[[Microsoft.Maui.IContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Platform.ContentView, Microsoft.Maui, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].SetVirtualView(IElement view) at Microsoft.Maui.Controls.Element.SetHandler(IElementHandler newHandler) at Microsoft.Maui.Controls.Element.set_Handler(IElementHandler value) at Microsoft.Maui.Controls.VisualElement.Microsoft.Maui.IElement.set_Handler(IElementHandler value) at Microsoft.Maui.Platform.ElementExtensions.ToHandler(IElement view, IMauiContext context) at Microsoft.Maui.Platform.ViewExtensions.ToHandler(IView view, IMauiContext context) at Microsoft.Maui.Controls.Platform.Compatibility.ShellSectionRootRenderer.SetPageRenderer(Page page, ShellContent shellContent) at Microsoft.Maui.Controls.Platform.Compatibility.ShellSectionRootRenderer.LoadRenderers() at Microsoft.Maui.Controls.Platform.Compatibility.ShellSectionRootRenderer.ViewDidLoad() at UIKit.UIApplication.UIApplicationMain(Int32 argc, String[] argv, IntPtr principalClassName, IntPtr delegateClassName) at UIKit.UIApplication.Main(String[] args, Type principalClass, Type delegateClass) at CameraTest.Program.Main(String[] args) in D:\Maui\annex_apps\CameraTest\CameraTest\Platforms\iOS\Program.cs:line 13} 我遇到了同样的问题，应用程序在扫描页面崩溃。您找到同样的解决方案了吗？如果你这样做了，请你在这里分享一下。预先感谢您。

ios maui zxing

回答 1 投票 0

如何生成带logo的二维码？

我正在为Android设备开发应用程序。我想生成带有徽标的二维码。通过 ZXing，我知道如何生成简单的二维码，如下所示：但我想生成二维码...

java android qr-code zxing

回答 5 投票 0

导入 ZXing - 缺少 core/build.xml

我正在尝试导入 Google 的 ZXing。我从 https://code.google.com/p/zxing/downloads/detail?name=ZXing-2.2.zip&can=2&q= 下载了最新版本从 cmd 提示符我导航到...

ant zxing build.xml

回答 5 投票 0

如何在读取条形码之前提高图像质量[关闭]

我正在使用 zxing-cpp 库从图像中读取条形码。导入CV2 导入zxingcpp img = cv2.imread('test.jpg') 结果= zxingcpp.read_barcodes(img) 对于结果中的结果： print('找到了...