Vision api not supporting camera autofocus

Question

I am using google vision api for scanning QR code and barcode. It is not supporting camera autofocus and remains blurred when detecting a barcode. Although my device supports autofocus. I am using autofocus feature provided by vision api but its not working

cameraSource = new CameraSource
            .Builder(getActivity(), barcodeDetector)
            .setRequestedPreviewSize(1600, 1024)
            .setAutoFocusEnabled(true)
            .build();

Log is showing:

I/CameraSource: Camera auto focus is not supported on this device.

Please Help. How can I resolve this?

This might help you https://stackoverflow.com/questions/41629911/camerasource-setautofocusenabledtrue-returns-camera-auto-focus-is-not-suppor Also it might be that the auto-focus is actually not supported — Kartik Shandilya, Oct 03 '17 at 16:20
@Novo Lucas Thanks for suggestion but i have tried that as well and it didnt work. I am using it inside fragment — Saify, Oct 03 '17 at 16:45
Yes it supports autofocus. Other barcode scanners can focus it very well — Saify, Oct 03 '17 at 18:28

score 0 · Answer 1 · answered Oct 04 '17 at 15:41

0

Try to update the sample code. The new version does not contain setAutoFocusEnabled method for CameraSource.Builder:

https://github.com/googlesamples/android-vision/blob/master/visionSamples/barcode-reader/app/src/main/java/com/google/android/gms/samples/vision/barcodereader/ui/camera/CameraSource.java

answered Oct 04 '17 at 15:41

Anton Malyshev

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Should I use this class for **CameraSource**? – Saify Oct 04 '17 at 15:51
Thanks. I'll try it – Saify Oct 04 '17 at 15:54

score 0 · Answer 2 · answered Oct 05 '17 at 07:29

0

Your CameraSource should have a setFocusMode(String mode) method. Something like

builder.setFocusMode(
    autoFocus ? Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE : null);

should work. Where autoFocus is a boolean.

answered Oct 05 '17 at 07:29

Algar

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Vision api not supporting camera autofocus

2 Answers2