Questions tagged [flutter-qrcode]
21 questions
2
votes
2 answers
After successfully a Barcode / Qrcode Scanner on Flutter VSCode, when I try to make apk file, I get an error
Code:
import 'package:flutter/material.dart';
import 'package:qr_code_scanner/qr_code_scanner.dart';
import 'dart:io';
import 'package:flutter/foundation.dart';
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const…
1
vote
2 answers
Flutter Qr_Code_Scanner 404, No barcode scanner found ios
I'm using the qr_code_scanner package and getting an error like this on ios.
[VERBOSE-2:dart_vm_initializer.cc(41)] Unhandled Exception: CameraException(404, No barcode scanner found)
#0…
Deniz Durmaz
- 53
- 4
1
vote
0 answers
using Qr code to extract information from an api flutter
I am trying to use Qr code scanner to extract information of the user for example user's picture, display name etc, by scanning a Qrcode with an endpoint as the message and passing the data data to a bottom modal. so, after the Qrcode is scanned and…
ohepo obogo
- 11
- 1
1
vote
1 answer
Scan the QR code from device camera and launch to the flutter app
I want to scan the QR code using the phone's camera and then direct it to the flutter application I created. I couldn't find a resource that could help me with this. Can anyone help with this before?
mia
- 19
- 3
1
vote
1 answer
Is there any ways to use QR Codes for installing an app if it's not already installed, if it's installed redirecting to a specific screen in the app?
I am trying to finish up my app which is written on flutter for iOS and VueJS for web version. Planning to use QR codes for installing an app if it's not already installed, if it's installed and user is not logged in, ask for the user's credentials…
taha
- 13
- 2
1
vote
1 answer
Duplicate dependencies in flutter app using qrscan and flutter_facebook_auth
Yeap, i know it sound rare, but when gradle runs, gives a Duplicate Dependencies in task ':app:checkDebugDuplicateClasses' with 'com.google.zxing.*'. Apparently one flutter package use com.github.leyan95:android-zxingLibrary:0.1.2-PRE and the other…
teteArg
- 3,684
- 2
- 20
- 18
0
votes
0 answers
How to read version 25 and above qr codes in flutter?
There is no library available to scan version 25 and above QR codes in Flutter yet. The current maximum supported version is 24. The libraries mentioned, mobile_scanner, flutter_mobile_vision, and qr_code_scanner, all only support up to version…
Alazar-dev
- 94
- 2
- 5
0
votes
1 answer
Error: The method 'fromBytes' isn't defined for the type 'VCard' in Flutter
I'm encountering an error in my Flutter code where I'm trying to parse a vCard using the vcard package. However, I'm getting the error message "The method 'fromBytes' isn't defined for the type 'VCard'". Here's the relevant code
import…
0
votes
0 answers
Is it possible to generate QR Codes on a flutter app with a logo or saying in the middle. How would one go about this?
Currently trying to build a custom QR code generator that would either include a logo or some text in the middle so it is not generic have been scouring the internet looking for solutions but mainly see general texts on how to generate a QR code…
wannaB
- 1
0
votes
1 answer
The problem of shrinking the screen size of the entire program
I am writing a Flutter project that scans QR codes and I use the qr_code_scanner package
At first, the screen size was good, but now when I run it on my phone, it is smaller from the top and bottom
It is interesting that the program is correct on…
Amir noroozi
- 25
- 3
0
votes
1 answer
How to create and integrate custom qr code in flutter
I want to add a qr code for my application. How can I integrate and scan the QR code I will generate? I would be very grateful if you could give me some explanatory information about the methods I will use and how to do it.
Will qr_code_scanner work…
0
votes
1 answer
How to resolve null check operator of a variable within a builder?
I'm doing a function statement of QR Code Scanner. When it's not facing the QR Code, it should be in waiting state in else if statement.
else if (result == null) {
return Column(
children: [ const Text("Welcome!"), Text("Fee:${load["Fee"]}"),…
Q40
- 13
- 5
0
votes
0 answers
Flutter: How can I retrieve the data of variables from QR Code I have generated with QR Code Scanner and JSON Decode?
Flutter: How to retrieve the data of variables from the QR code I have generated with JSON and JSON decode?
Referring to someone's post, I'm trying to scan the QR Code I generated, in which I need to retrieve the data of a number of variables. This…
Q40
- 13
- 5
0
votes
1 answer
Why do I get screen blinks when I update Image.memory()?
I get a QR code for authorization via the REST API and display it on the screen via Image.memory().
After the QR is shown on the screen, I start sending authorization requests to the server.
But since the lifetime of the key k1 is limited, I have to…
Vladimir
- 11
- 2
0
votes
1 answer
QR Code Scanner in Flutter - not opening QR Scanner View
I am using below puglin in flutter to open QR Scanner :
https://pub.dev/packages/qr_code_scanner
I have added necessary classes from Plugin example, but when I press on button, nothing happens.
Below is the pubspec.ymal:
qr_code_scanner: ^1.0.1
I…
Jaimin Modi
- 1,530
- 4
- 20
- 72