QrCodeScanner | An optimized qr code scan tool | QRCode Processing library

 by   iluhcm Java Version: Current License: GPL-3.0

kandi X-RAY | QrCodeScanner Summary

kandi X-RAY | QrCodeScanner Summary

QrCodeScanner is a Java library typically used in Utilities, QRCode Processing applications. QrCodeScanner has no bugs, it has no vulnerabilities, it has build file available, it has a Strong Copyleft License and it has low support. You can download it from GitHub.

An optimized qr code scan tool forked from zxing.
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            kandi-support Support

              QrCodeScanner has a low active ecosystem.
              It has 434 star(s) with 126 fork(s). There are 21 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 6 open issues and 15 have been closed. On average issues are closed in 60 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of QrCodeScanner is current.

            kandi-Quality Quality

              QrCodeScanner has 0 bugs and 0 code smells.

            kandi-Security Security

              QrCodeScanner has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              QrCodeScanner code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              QrCodeScanner is licensed under the GPL-3.0 License. This license is Strong Copyleft.
              Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

            kandi-Reuse Reuse

              QrCodeScanner releases are not available. You will need to build from source code and install.
              Build file is available. You can build the component from source.
              QrCodeScanner saves you 6922 person hours of effort in developing the same functionality from scratch.
              It has 14346 lines of code, 901 functions and 160 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

            Top functions reviewed by kandi - BETA

            kandi has reviewed QrCodeScanner and discovered the below as its top functions. This is intended to give you an instant insight into QrCodeScanner implemented functionality, and help decide if they suit your requirements.
            • Decodes a row
            • Find the start pattern for the start pattern
            • Decode code pattern
            • Checks if set bits are set
            • Searches for black rectangular corners of a rectangle
            • Determines if a segment contains a black point
            • Get the black point on a segment
            • Center the center of a rectangular region
            • Region drawable
            • Decodes the middle character
            • Detects a rectangular region
            • Returns a String representation of the image
            • Returns a string representation of the field
            • Decodes middle row
            • Calculates the BitMatrix that can be used as a BitMatrix
            • Decodes the middle
            • Returns a string representation of this class
            • Return the original matrix
            • Encodes the given contents into a set of boolean values
            • Encodes the given contents into a boolean array
            • Encodes the provided contents into an array of boolean codes
            • Decode a row and return the result as a String
            • Encodes the given string into an array of boolean codes
            • Applies a filtering threshold to the row data
            • Encodes the given string into an array of bytes
            • Encodes the given string into a byte array
            Get all kandi verified functions for this library.

            QrCodeScanner Key Features

            No Key Features are available at this moment for QrCodeScanner.

            QrCodeScanner Examples and Code Snippets

            No Code Snippets are available at this moment for QrCodeScanner.

            Community Discussions

            QUESTION

            How to Open URL "on click" after Scanning a QR Code in React-Native Android App
            Asked 2022-Apr-05 at 07:14

            I am new to React-Native & created a QR Scanner App. After scanning want to open url onClick/onPress.

            -- Here is the code

            onSuccess = (e) => { setResult(e.data) setScan(false) }

            // Start scanner startScan = () => { setScan(true) setResult() }

            ...

            ANSWER

            Answered 2022-Apr-05 at 07:14

            Let me help you

            Your code might look like this:

            Source https://stackoverflow.com/questions/71746906

            QUESTION

            How to add text inside of the Camera View when using react-native-qrcode-scanner in react native
            Asked 2021-Nov-15 at 16:41

            I am now using react-native-qrcode-scanner to read the QRcode but now have trouble when trying to add the text inside of the camera view. (Not top or bottom of the camera view but inside of it - more exactly under the marker position with align center)

            The text is not displayed even though I add Text field with position: 'absolute'

            ...

            ANSWER

            Answered 2021-Nov-15 at 16:41

            Following sample works for me on iOS:

            Source https://stackoverflow.com/questions/69974087

            QUESTION

            android compose bottomnavigation item is hide
            Asked 2021-Nov-12 at 07:18

            If I add floating action button to the bottom bar in bottomnavigation as extended, the menu will be covered by location. If I'm set up in the center, you can see both menus. But if I leave it as end, you can only see one menu. When I set it to end, I want to see both menus.

            Here is my code

            ...

            ANSWER

            Answered 2021-Nov-12 at 07:18

            I think all you need is to just offset the FAB using the offset modifier. Here's an example:

            Source https://stackoverflow.com/questions/69936971

            QUESTION

            cannot close modal in react
            Asked 2021-Sep-14 at 13:15

            I have a modal which opens up when I scan a qr Code. After this I set a props to true which tells my Responsemodal to open up. Problem is, I cannot close because this prop is read-only in child component.

            Here is my code:

            ...

            ANSWER

            Answered 2021-Sep-14 at 13:02

            You forgot add dependencies in useEffect. Just add flag to dependencies array to make sure it only call when flag change

            Source https://stackoverflow.com/questions/69178249

            QUESTION

            Scanning GS1 Databar Barcode in IOS with react-native
            Asked 2021-Apr-05 at 14:57

            I want to scan GS1 Databar Barcode which is also known as RSS Expanded barcode in IOS with react-native, I am using react-native-qrcode-scanner https://github.com/moaazsidat/react-native-qrcode-scanner to scan barcodes.

            ...

            ANSWER

            Answered 2021-Apr-05 at 14:57

            No efficient open source solutions found for scanning GS1 Databar Expanded barcodes on iOS using React-Native.

            Tried Zxingify-ObjC as a native module but the scanning is poor on newer iPhones (11 Pro, 12).

            Tried react-native-barcode plugin. Doesn't support GS1 Databar plugin using the camera scanner, but does support scanning GS1 Databar from static images.

            Finally went for a paid SDK: Cognex.

            Hope this helps someone who runs into the same problem.

            Source https://stackoverflow.com/questions/66337881

            QUESTION

            Android MLKit scan QRcode only on center of screen
            Asked 2021-Jan-19 at 19:00

            I implemented firebase MLKit to scan QRCode, it is scanning, but it is scanning all QRcode on screen. I need to scan only QRCode that are captured on the center (has arrow ImageView on the center), how can I do it?

            I tried to crop on the Analisys function (inside analysisUseCase?.setAnalyzer)

            imageProxy.cropRect()

            I tried to crop on the processImageProxy function. But with no success, I think that I can't crop with this

            ...

            ANSWER

            Answered 2021-Jan-19 at 19:00

            imageProxy.cropRect() only put a metadata in the image, but not do the cropping operation. For static image, you could convert to bitmap, and crop. A better way is to filter out the results when you have all the returned barcode with the detected barcode boundingbox.

            Within MLKit, we are adding supports for image cropping.

            Source https://stackoverflow.com/questions/65746303

            QUESTION

            Send Values between page react native hooks
            Asked 2020-Oct-13 at 19:15

            i'm new in React Native and stuck to passing data to another page. in this case i want to sent data from QR Reader to another Page.

            this is my code on first screen:

            ...

            ANSWER

            Answered 2020-Oct-13 at 19:15

            if you are using react navigation 5

            props.route.params

            if older

            props.navigation.state.params

            it works when navigate with navigation.navigate('ScreenName', {params})

            i am not sure about navigation.replace

            Source https://stackoverflow.com/questions/64340961

            QUESTION

            ML Kit Barcode process fails due to Image is already closed
            Asked 2020-Oct-09 at 22:48

            I'm looking for a few days how I can read a QR code using ML Kit and CameraX. The process of the input image returns always a failure "IllegalStateException: Image is already closed". I have looked on different forums, but I can not find what I'm doing wrong. I think I'm following the Google documentation, but it won't work.

            This is what I'm doing in my MainActivity:

            1. I create a textureView which shows me the input of my camera
            2. I start my camera (after checking the necessary rights)
            3. I setup a "preview" use case
            4. I setup a "Image Analysis" use case
            5. I set an analyzer which creates an InputImage which is passed to the Barcode scanner process
            6. Set my LifeCycle with the use cases "preview" and "image analysis"

            I'm using CameraX version "1.0.0-alpha04" and "com.google.mlkit:barcode-scanning:16.0.3".

            build.gradle

            ...

            ANSWER

            Answered 2020-Oct-09 at 21:32

            I am not 100% sure whether this is related, but could you try updating your CameraX dependencies to the latest version? Yours is 1.0.0-alpha04, while the latest is 1.0.0-beta10. https://developer.android.com/jetpack/androidx/releases/camera

            For the API you are using - setImageReaderMode(ImageAnalysis.ImageReaderMode.ACQUIRE_LATEST_IMAGE), I cannot find it any more on the CameraX dev site: https://developer.android.com/reference/androidx/camera/core/ImageAnalysis

            As for .setImageQueueDepth(1), seems it doesn't work for the default strategy: https://developer.android.com/reference/androidx/camera/core/ImageAnalysis.Builder#setImageQueueDepth(int)

            Another small suggestion: you currently create a new BarcodeDetector in each frame, which could be slow. Creating once outside the analyzer and reuse the same instance could be better.

            Hope some of the points help :)

            Source https://stackoverflow.com/questions/64263650

            QUESTION

            After calling zxing scanner, I go back to my activity but in a new instance
            Asked 2020-Jul-29 at 14:02

            I use the library zxing-android-embedded in my Android App. Before calling initiateScan() method to start the scanner from my activity, I set a class variable scanedItemId to know on which item I clicked to scan.

            My issue is that when the scanner activity finished, it goes back to my activity, but in a new instance and not the initial one (I checked with a break point in the onCreate method). So, my class variable is null. What can I do to keep my initial activity instance live and be sure the scanner goes back to it?

            ...

            ANSWER

            Answered 2020-Jul-24 at 12:30

            You asked:

            What can I do to keep my initial activity instance live and be sure the scanner goes back to it?

            You can't. When your app goes to the background and the scanner app needs resources, Android will kill your app to make the resources available to the scanner app. This is normal and your app needs to be made robust enough to deal with this. If you need to keep track of your app's state so that you can continue when your app returns to the foreground, then you need to save that information somewhere persistent. You have choices:

            • SharedPreferences
            • SQLite database
            • Use a file
            • Implement onSaveInstanceState()

            Source https://stackoverflow.com/questions/63069565

            QUESTION

            Android: pass data from initial activity (launching Zxing scanner) to onActivityResult callback
            Asked 2020-Jul-24 at 06:59

            I use the library zxing-android-embedded in my Android App. Before calling initiateScan() method to start the scanner from my activity, I set a class variable scanedItemId to know on which item I clicked to scan:

            ...

            ANSWER

            Answered 2020-Jul-24 at 06:59

            You can add more custom data like this :

            Source https://stackoverflow.com/questions/63051307

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install QrCodeScanner

            You can download it from GitHub.
            You can use QrCodeScanner like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the QrCodeScanner component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

            Support

            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            https://github.com/iluhcm/QrCodeScanner.git

          • CLI

            gh repo clone iluhcm/QrCodeScanner

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            git@github.com:iluhcm/QrCodeScanner.git

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