Camera 1 Extensions? #373

fun Camera.setParameters(setAction: (Camera.Parameters) -> Unit) {
    val params = parameters
    setAction(params)
    parameters = params
}

enum class FACING {
    FRONT, BACK
}

fun openCamera(facing: FACING): Camera = Camera.open(getCameraId(facing))

private fun getCameraId(facing: CameraExtensions.FACING): Int {
    val info = Camera.CameraInfo()
    val numCameras = Camera.getNumberOfCameras()
    val direction =
            when (facing) {
                FACING.FRONT -> Camera.CameraInfo.CAMERA_FACING_FRONT
                FACING.BACK -> Camera.CameraInfo.CAMERA_FACING_BACK
            }
    for (i in 0 until numCameras) {
        Camera.getCameraInfo(i, info)
        if (info.facing == direction) {
            return i
        }
    }
    throw RuntimeException("No matching camera for $facing")
}