Android Question [B4XPages] Barcode Reader with Camera2

fbritop

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Hi
I was testing [B4XPages] Barcode Reader from:


I could not get to enable/disable the flash, because I understand Camera library methods are deprecated according to Google


Is it possible to update the barcode reader to work with CamEx2?

Thanks
FBP
 

fbritop

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SetFlashMode does not work on Camera class, but do operates ok from Camera2.I finaly manage to adapt the Barcode Reader to Camera2 class, having a timer to scan every 100ms and changing the frameBuilder to setBitmap:

B4X:
                Dim frameBuilder As JavaObject
                frameBuilder.InitializeNewInstance("com/google/android/gms/vision/Frame.Builder".Replace("/", "."), Null)
                frameBuilder.runmethod("setBitmap", Array( camEx.GetPreviewBitmap(pnlPreview.Width, pnlPreview.Height) ))
 
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Pedro Caldeira

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Hello @fbritop I am using the Camera and CameraExClass with BarcodeScanner but need to change to camera2 and CamEx2, since I am already using these late modules in the app to take pictures. How did you adapted the barcode class, since we no longer have ScanCamera_preview event in CamEx2 ?
A timer to call the previous code that was in ScanCamera_preview ? and how to you use a bitmap instead of the data() ?

Thanks in advance.
 
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fbritop

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Here I attach both classes, one for reading barcodes, and the other for OCR, both of them which I use.
 

Attachments

  • auxClsScannerPPU.bas
    16.4 KB · Views: 343
  • auxClsScannerQR.bas
    16.7 KB · Views: 322
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