Android Question [B4XPages] Barcode Reader with Camera2

[fbritop]

Hi
I was testing [B4XPages] Barcode Reader from:

[B4X] [B4XPages] Barcode Reader

B4A + B4i barcode reader. Don't miss: - #PlistExtra in B4i. - Manifest code + #AdditionalJar in B4A Depends on BCToast: https://www.b4x.com/android/forum/threads/b4x-bctoast-cross-platform-custom-toast-message.111046/#content (BCToast will be an internal library in the near future) While the...

www.b4x.com

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

https://developer.android.com/reference/android/hardware/Camera.Parameters

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

Thanks
FBP

 

[Erel]

The Camera library isn't deprecated. You should keep using it.

 

[fbritop]

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:

                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) ))

 

[Pedro Caldeira]

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:

                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) ))

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.

 

[fbritop]

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, how ?

Thanks in advance.

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

 

[Pedro Caldeira]

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

Thanks m8.