I want to develop an app that utilises a barcode scanner ( of various types ) .
I don't want to use the barcode scanner like a keyboard ( intercepting keystrokes etc )
Is there a .net 5 library or part of the framework that I can use in a winfoms app?
Related
I have an USB Barcode Scanner device and i want a library in reactjs to check when the barcode are scanner and set it to the state.
I see some library such as: https://www.npmjs.com/package/react-qr-barcode-scanner but this is only using the webcam.
I use library https://www.npmjs.com/package/use-scan-detection but it say document is undefined.
Anyone can help me with this. I want state barcode automacally set when barcode is deteced by device.
Many thanks
I would like to have a camera view, which uses device's camera and detects barcodes' data. How can it be done in a React app?
Not for React Native. It has to work both on desktop and mobile using browser.
As long as you use a barcode library implemented in JavaScript, you can make your web apps work on both desktop and mobile.
I've written an article - How to Build Web Barcode Scanner Using React and Webcam which shows you how to build such an app from scratch using Dynamsoft JavaScript Barcode SDK.
Dynamsoft JavaScript Barcode SDK is commercial software. If you want to use open-source SDK for free, you can use ZXing as the substitution.
Here is the source code:
https://github.com/yushulx/zxing-cpp-emscripten
I need to open alphanumeric google keyboard in Hybrid android application. That particular keyboard is generally come for password field for any android devices. I need a solution for kiosk application. Need to active this alphanumeric keyboard on my kiosk application .
Few details related query.
Using android-19 Kitkat
This the kiosk application specific devices not general android device.
Hybrid application using Apache Corodva.
Need to activate this particular keyboard for all Address fields(text-field).
😎
Do you have that keyboard installed and selected on device ? if yes,
you can open it by one of these ways programmatically:
Forcing the Soft Keyboard open
If you want to select an installed keyboard programatically and your
app has system privileges, use this solution to switch keyboards (
activation ), Take a look on : https://stackoverflow.com/a/33999658/2267723
Since your using Apache Corodva, you could ship a virtual keyboard
(as html5 ) to app. Take a look on
https://mottie.github.io/Keyboard/ to app and when user enters
input, just call back your app with href with mimetype which is
recognized by app.
Other solutions:
Create on-screen keyboard ( Im not talking about custom keyboard )
its just layout as grid of buttons represents inputs.
Attach a physical Bt/USB keyboard.
Use a QR code . that would lead user to web where user can fill that form .. That would be free machine soon 🙂
I have developing a simple android application then scan qr code and return a text to my form ,
but there is nothing returned from zxing scanner .
note : The zxing's Barcode Scanner App work perfectly
Our scanner is a bit sensitive to the app intent fired and might not work with some bad QR scanners. There is a 3rd party scanner that might work more consistently on Android that's available within the extension manager and is based on zbar.
Looking at the example here: http://docs.oracle.com/cd/E18941_01/tutorials/buildmobileappscontent/adfmobiletutorial_1.html
Would doing something like this end up creating a package app(like an APK on android), or a mobile application. If not, can I create a native(ish) app with Oracle ADF? And if so, can I easily create a mobile app from a pre-existing web ADF app?
No, you can't use a pre-existing web ADF app to create a mobile app.
You can however reuse parts of it, for example by exposing your model. It also uses the same concepts (like task flows) so the learning curve is low if you know ADF.
The end-result of your ADF Mobile application will be an .apk (Android) or .ipa (iOS) so yes, you get a native application.
Note: ADF Mobile is 'deprecated' (= will not get any updates/fixes). The product has been rebranded to MAF (Mobile Application Framework) and has lots of improvments compared to the version you are using.