Camera not focusing on certain devices

[copperstick6]

Thomas brought up a pain point for the app, that the camera isn't focusing on certain devices. Looking to grab more information about this issue from the other organizers/directors.

[copperstick6]

https://developers.google.com/android/reference/com/google/android/gms/vision/CameraSource.Builder#setAutoFocusEnabled(boolean)
The docs here provides a pretty good overview of what's happening with the focus. A suggested modification of the code initializing the CameraSource and allowing continuous focus would be as follows:

 mCameraSource = new CameraSource.Builder(this, barcodeDetector)
                .setFacing(CameraSource.CAMERA_FACING_BACK)
                .setRequestedPreviewSize(1600, 1024)
                **.setAutoFocusEnabled(true)**
                .build();

I'm not sure what sort of improvements this would cause with regards to the focus on the camera. I'm getting a new tablet to commence testing next week. Will report back with results.