CODEWITHSUNDEEP
androidkotlincameraandroid-architecture-componentsandroid-jetpack
B.Ahmad
B.Ahmad

Reputation: 107

CameraX preview not showing anything when front camera is selected

I am trying to use CameraX library to capture image using front camera. But when the camera is launched, preview is showing nothing but black screen. Here is the configurations:

val previewConfig = PreviewConfig.Builder().apply {
            setTargetResolution(Size(640, 480))
            setLensFacing(CameraX.LensFacing.FRONT)
        }.build()

        preview = Preview(previewConfig)

        preview.setOnPreviewOutputUpdateListener {
            val parent = viewFinder.parent as ViewGroup
            parent.removeView(viewFinder)
            parent.addView(viewFinder, 0)

            viewFinder.surfaceTexture = it.surfaceTexture
            updateTransform()
        }

        val imageCaptureConfig = ImageCaptureConfig.Builder()
            .apply {
                setCaptureMode(ImageCapture.CaptureMode.MIN_LATENCY)
            }.build()

        imageCapture = ImageCapture(imageCaptureConfig)

        val analyzerConfig = ImageAnalysisConfig.Builder().apply {
            setImageReaderMode(
                ImageAnalysis.ImageReaderMode.ACQUIRE_LATEST_IMAGE)
        }.build()

        analyzerUseCase = ImageAnalysis(analyzerConfig).apply {
            setAnalyzer(executor, LuminosityAnalyzer())
        }
        CameraX.bindToLifecycle(this, preview, imageCapture)

But it's working well with setLensFacing(CameraX.LensFacing.BACK). Also if i remove ImageCapture object from bindToLifeCyle method, i can see a preview with the front facing camera.

CameraX.bindToLifecycle(this, preview, /*imageCapture*/)

Please advise.

Upvotes: 2

Views: 1977

Answers (1)

Nuhel
Nuhel

Reputation: 196

You also need to set setLensFacing to front for imageCaptureConfig. I was also facing the same issue , but your question solved my issue :p

Upvotes: 1

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