barcode.js | Javascript QR Code library | QRCode Processing library
kandi X-RAY | barcode.js Summary
kandi X-RAY | barcode.js Summary
Javascript QR Code library, based on zxing. Features robust, high-performance, WebGL-accelerated QR Code scanning.
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QUESTION
I am developing a barcode app and save the data to hive. What I need to know is there a way to export the saved hive database to a backup file and be able to retrieve it for instance if the app crashed or your phone is lost. This is for blind accessibility. Want to export the data to a file that I can save to my pc to store and if something happens I do not have to scan all the products again to build the database. If hive can not do this can someone point me in a direction of which flutter dart database can do this. Thank you
Ok the answer did not work for me. Here is a copy of my model file
...ANSWER
Answered 2021-Jun-08 at 10:24There is not a "out-of-the-box" solution for that as far as I know. It depends a lot on your use case of how you want to do that (since there are many ways). For a complete example of how I did that for my app, you can take a look here: https://github.com/Kounex/obs_blade/blob/master/lib/views/settings/logs/log_detail/log_detail.dart (I made use of the share package in order to easily export it - but that's not necessary)
Flutter also has its own documentation on reading and writing files (https://flutter.dev/docs/cookbook/persistence/reading-writing-files) - I will add some information to round it up:
Storage locationFirst of all we have to think about where to store the "backup file". Flutter exposes common paths on its own which you can make use of (additionally the path_provider package gives you more flexibility). If you want this backup file to be temporarily, you can for example use:
QUESTION
Actually i'm new to React and i'm trying to make a simple barcode scanner which show the scanned barcode in an alert and after pressing "OK" in the alert the user should be able to scan another barcode.
The issue is that the barcode is continuously scanned and when the alert is up it's hiding and showing every second the alert.
I was trying to do something like this to show the alert only once and if OK is pressed to be able to show again the alert but only in case the OK is pressed but that had no effect..
...ANSWER
Answered 2019-Oct-08 at 12:15use setState in order to set state of component.setState will take the object and update the state of component
check code below
QUESTION
I plan to generate barcode with jquery barcode library in an asp repeater.
The repeater work well, all data retreived is diplayed.
The problem is wuth the barcode generation.
Please help on this.
...ANSWER
Answered 2019-Apr-30 at 13:53Try this
QUESTION
I am trying to create a route in a nodejs app that generates a barcode from an objectId on a jade template However, as I included my route and refresh, the images is not rendering.
I've read the documentation and tried different methods but it is not rendering still.
Here is my barcode.js
...ANSWER
Answered 2019-Apr-02 at 17:51After res.render you can't have any line of code, since the page would render.
Change your barcode.js file as mentioned below
QUESTION
The problem is my application is not working in IE11 i'm using vue-cli3 with babel polyfill 7 (with the browserlist in the package.json)
on IE11 i'm getting a white screen with error 1003 in the console expected ':'
When i try the command npx browserSlist i'm seeing IE11 so that works :)
my babel.conf: (i've changes the default @vue... preset to @babel/preset-env so the debug:true worked)
...ANSWER
Answered 2018-Oct-06 at 13:44The problem was a plugin that's not compatible with es2015. before (proberly with vue cli2) webpack was probably configured to transpile all node_modules, which is not necessarily common practice.
in this blog you can read how to publish es6 code to npm
QUESTION
I am using JSBarCode to try and generate barcodes for assets. I need to be able to create a static barcode then I think I can get the dynamic part myself. My code so far is direct copy from the docs found on the link above. I would think the docs would give a working example to base my code off. Maybe I did the code wrong, I have the code below and I have done the NPM installs already for jsbarcode and canvas.
Server side code:
...ANSWER
Answered 2017-Oct-29 at 05:47QUESTION
I'm working on implementing a QR reader in a web based app that uses the PC's webcam. This is currently working correct.
The framework that I use (barcode.js) has a function render(element).
I have 2 different files, ScannerView.html and ScannerView.js. See their code below:
ScannerView.html
...ANSWER
Answered 2017-Jun-16 at 12:07After searching Google for a while longer, I found a solution.
The onRender: function() { } "gets triggered when the View's DOM subtree is prepared for insertion into the DOM but before those elements are viewable", according to this webiste.
after changing onRender to onShow in my javascript file, the canvas element is rendered in the correct location.
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