Take Screenshot of SurfaceView

Question

Am developing a simple camera app. I have code that takes screenshot of the whole activity and writes it to the Sd card. the problem is that the Surfaceview returns a black

Answer 1

My situation related with ExoPlayer, need get bitmap of current frame.

Work on API >= 24.

private val copyFrameHandler = Handler()

fun getFrameBitmap(callback: FrameBitmapCallback) {
    when(val view = videoSurfaceView) {
        is TextureView -> callback.onResult(view.bitmap)
        is SurfaceView -> {
            val bitmap = Bitmap.createBitmap(
                    videoSurfaceView.getWidth(),
                    videoSurfaceView.getHeight(),
                    Bitmap.Config.ARGB_8888
            )

            copyFrameHandler.removeCallbacksAndMessages(null)

            PixelCopy.request(view, bitmap, { copyResult: Int ->
                if (copyResult == PixelCopy.SUCCESS) {
                    callback.onResult(bitmap)
                } else {
                    callback.onResult(null)
                }
            }, copyFrameHandler)
        }
        else -> callback.onResult(null)
    }
}

fun onDestroy() {
    copyFrameHandler.removeCallbacksAndMessages(null)
}

interface FrameBitmapCallback {
    fun onResult(bitmap: Bitmap?)
}