Expo Camera barcodeScanner returns incorrect bounds based on device orientation about expo HOT 3 OPEN

Similar issue. In my case, I managed to make boundingBox in portrait orientation. But when I rotate the phone to landscape the data is screwed.

Noted that I locked device orientation with expo-orientation

Ref

      //  check android barcode bounds
    } else if (barcode.boundingBox !== undefined) {
      barcodeBounds = {
        height: barcode.boundingBox.size.width,
        width: barcode.boundingBox.size.height,
        left:
          width - barcode.boundingBox.origin.y - barcode.boundingBox.size.width,
        top: barcode.boundingBox.origin.x,
      }
    }

from expo.

Same problem here.

It's because currently screen orientation has nothing to do with how the barcode is scanned and how the corner points are processed. The orientation is taken from rotationDegrees which are also used for creating EXIF data when taking pictures.

Maybe I'm wrong but IMO the only real use case for corner points and bounding box is to show that to the user as an overlay. And for that we need it tied to the screen orientation and not physical orientation. Or at the very least we need to somehow get that info to javascript so we can process it ourselves.

from expo.

Update: Since my app is always portrait anyway I decided to hardcode the angle for now.
Here's my patch:

diff --git a/android/src/main/java/expo/modules/camera/analyzers/BarcodeAnalyzer.kt b/android/src/main/java/expo/modules/camera/analyzers/BarcodeAnalyzer.kt
index 8d3f8796363d4a42b440add55b2506cb0d4d556c..1328f41ac3668d41c2c5ded3e3542080ff1db5b7 100644
--- a/android/src/main/java/expo/modules/camera/analyzers/BarcodeAnalyzer.kt
+++ b/android/src/main/java/expo/modules/camera/analyzers/BarcodeAnalyzer.kt
@@ -33,7 +33,8 @@ class BarcodeAnalyzer(private val lensFacing: CameraType, formats: List<BarcodeT
     val mediaImage = imageProxy.image
 
     if (mediaImage != null) {
-      val rotation = CameraViewHelper.getCorrectCameraRotation(imageProxy.imageInfo.rotationDegrees, lensFacing)
+      val rotation = CameraViewHelper.getCorrectCameraRotation(90, lensFacing)
       val image = InputImage.fromMediaImage(mediaImage, rotation)
 
       barcodeScanner.process(image)

It was created using bun patch but you probably can patch that using other tools. Idk if custom patches work in EAS. I build apks on my own infra (docker image + some scripts) and patches are applied automatically with every bun install.

from expo.