Blazor
A free and open-source web framework that enables developers to create web apps using C# and HTML being developed by Microsoft.
1,551 questions
.NET MAUI Blazor POS App Freezing Issue when Using Physical Barcode Scanner on Android
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(169.60000000000002, 43%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELL%3C/text%3E%3C/svg%3E)
Lasitha Lankajeewa
0
Reputation points
I'm working on a Point of Sale (POS) application using .NET MAUI and Blazor, specifically targeting Android devices. Everything has been going well so far, but I've encountered a frustrating issue that's got me stumped.
Whenever I connect or disconnect a physical barcode scanner to my Android device while running the POS app, it freezes. The app becomes unresponsive, and I have to force close it and restart it to continue working. This happens both when I connect and disconnect the barcode scanner.
My Questions:
Has anyone else encountered a similar issue when using .NET MAUI and Blazor for Android development?
Are there any known compatibility issues with specific barcode scanner devices?
Any recommendations for debugging or profiling tools that might help pinpoint the problem?
I'd greatly appreciate any insights, advice, or suggestions you can provide. If you need more specific details about my code or setup, please let me know. Thanks in advance for your help!
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(316.8, 40%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYL%3C/text%3E%3C/svg%3E)
Yonglun Liu (Shanghai Wicresoft Co,.Ltd.) 41,601 Reputation points Microsoft Vendor2023-09-26T05:40:48.62+00:00 Does this issue only occur on Physical Barcode Scanner?
Are there any known compatibility issues with specific barcode scanner devices?
According to Supported platforms for .NET MAUI apps, is your device on one of the following supported platforms?
.NET Multi-platform App UI (.NET MAUI) apps can be written for the following platforms:
- Android 5.0 (API 21) or higher.
- iOS 11 or higher, using the latest release of Xcode.
- macOS 10.15 or higher, using Mac Catalyst.
- Windows 11 and Windows 10 version 1809 or higher, using Windows UI Library (WinUI) 3.
.NET MAUI Blazor apps have the following additional platform requirements:
- Android 7.0 (API 24) or higher is required
- iOS 14 or higher is required.
- macOS 11 or higher, using Mac Catalyst.
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