QRCodeScanner | Simple QR CODE or BARCODE Scanner Android Example | QRCode Processing library

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'

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

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:

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.

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

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:

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

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?

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: