Scan Barcode Using XAMARIN

Question

Hi i need open scanner zxing by pressing a button, can anyone help me? THANKS

Kip Hackman · Answer

For your use-case, to live capture barcodes from a mobile device using Xamarin, you can look into using the LEADTOOLS Barcode SDK and Xamarin Camera Control. https://www.leadtools.com/sdk/products/barcode-pro https://www.leadtools.com/sdk/xamarin/camera You can leverage the CameraView class which will allow you to access a mobile device's camera. You can access the frames received from the camera using the FrameReceived event, then take that frame and detect/extract barcodes codes using the BarcodeReader class. For an example see the code below: private void liveCapture_Clicked(object sender, EventArgs e) { leadCamera.CameraOptions.AutoRotateImage = true; barcodeEngineInstance = new BarcodeEngine(); leadCamera.FrameReceived += LeadCamera_FrameReceived; } private void LeadCamera_FrameReceived(Leadtools.Camera.Xamarin.FrameHandlerEventArgs e) { // Frame Received Handler Code using (RasterImage image = e.Image) { BarcodeData[] dataArray = barcodeEngineInstance.Reader.ReadBarcodes(image, LeadRect.Empty, 0, null); if (dataArray != null) { leadCamera.FrameReceived -= LeadCamera_FrameReceived; StringBuilder sb = new StringBuilder(); sb.AppendFormat("{0} barcode(s) found", dataArray.Length); sb.AppendLine(); for (int i = 0; i { DisplayAlert("Barcode(s) Found!", sb.ToString(), "OK"); }); } } }

Riccardo Daria · Answer

Thanks, but this code is underlined: MobileBarcodeScanner We need something else, RIGHT?

Mohamed Azarudeen Z · Answer

Add ZXing.Net.Mobile NuGet package to your Xamarin.Forms project. Right-click on your solution, select "Manage NuGet Packages," search for "ZXing.Net.Mobile," and install it. In your Xamarin.Forms project, create a new Content Page or use an existing one where you want to include the barcode scanner. Add the necessary namespaces at the top of your code-behind file: using ZXing; using ZXing.Mobile; In your XAML file, add a button and assign a click event handler to it: implement the click event handler for the button: private async void OnScanButtonClicked(object sender, EventArgs e) { // Create a new instance of the MobileBarcodeScanner var scanner = new MobileBarcodeScanner(); // Set the desired barcode formats to scan scanner.TopText = "Hold camera up to barcode"; scanner.BottomText = "Barcode will be automatically scanned"; // Start scanning var result = await scanner.Scan(); // Handle the scan result if (result != null && !string.IsNullOrWhiteSpace(result.Text)) { // Barcode successfully scanned string barcodeValue = result.Text; // Do something with the barcode value // For example, display it in a label barcodeLabel.Text = barcodeValue; } }

Scan Barcode Using XAMARIN

Answers (3)