[Android] Camera view fails on consecutive screens with barcode scanner

[timdoege]

Hi,
Since MLKit versions 1.06 (still in v2.0.):
Due a requirement in my app where two consecutive screens with an active QR scanner are present (you scan a QR on the first screen and from there you can navigate to the second screen to scan a different QR code).
This works fine until you navigate back from screen 2 to screen 1 and this app crash happens:

System.err: Error: java.lang.IllegalArgumentException: No supported surface combination is found for camera device - Id : 0. 
May be attempting to bind too many use cases. Existing surfaces: [AttachedSurfaceInfo{surfaceConfig=SurfaceConfig{configType=PRIV, configSize=PREVIEW}, imageFormat=34,
size=1440x1080, targetFrameRate=null}, AttachedSurfaceInfo{surfaceConfig=SurfaceConfig{configType=YUV, configSize=VGA}, imageFormat=35, size=640x480, targetFrameRate=null}]
New configs: [androidx.camera.core.impl.ImageAnalysisConfig@2d5ee0b, androidx.camera.core.impl.PreviewConfig@c55a9da]

  System.err:
  System.err: StackTrace:
  System.err: startPreview(file: src/webpack:/ns-mlkit/node_modules/@nativescript/mlkit-core/index.android.js:440:0)
  System.err:     at onLoaded(file: src/webpack:/ns-mlkit/node_modules/@nativescript/mlkit-core/index.android.js:423:0)
  System.err:     at (file: src/webpack:/ns-mlkit/node_modules/@nativescript/core/ui/core/view-base/index.js:392:0)

A tiny sample of the above is found in this Stackblitz (which works on iOS)

https://stackblitz.com/edit/nativescript-stackblitz-templates-pozdy1?file=src%2Fapp%2Fitem%2Fitem-detail.component.html

I have also seen this happen when the scanner view is inside a BottomNavigation tab, but the stack trace is a bit different:

  System.err: Caused by: java.lang.IllegalArgumentException: No supported surface combination is found for camera device - Id : 0.  May be attempting to bind too many use cases. Existing surfaces: [AttachedSurfaceInfo{surfaceConfig=SurfaceConfig{configType=PRIV, configSize=PREVIEW}, imageFormat=34, size=1440x1080, targetFrameRate=null}, AttachedSurfaceInfo{surfaceConfig=SurfaceConfig{configType=YUV, configSize=VGA}, imageFormat=35, size=640x480, targetFrameRate=null}] New configs: [androidx.camera.core.impl.ImageAnalysisConfig@ddc2d3d, androidx.camera.core.impl.PreviewConfig@8f17e94]
  System.err: 	at androidx.camera.lifecycle.LifecycleCameraRepository.bindToLifecycleCamera(LifecycleCameraRepository.java:285)
  System.err: 	at androidx.camera.lifecycle.ProcessCameraProvider.bindToLifecycle(ProcessCameraProvider.java:538)
  System.err: 	at androidx.camera.lifecycle.ProcessCameraProvider.bindToLifecycle(ProcessCameraProvider.java:363)
  System.err: 	at io.github.triniwiz.fancycamera.Camera2.initPreview(Camera2.kt:909)
  System.err: 	at io.github.triniwiz.fancycamera.Camera2.refreshCamera(Camera2.kt:984)
  System.err: 	at io.github.triniwiz.fancycamera.Camera2.startPreview(Camera2.kt:1035)
  System.err: 	at io.github.triniwiz.fancycamera.FancyCamera.startPreview(FancyCamera.kt:365)
  System.err: 	... 34 more