Calls rotation depending on ExifInterface.

ImageFragment.kt

private fun rotateImageIfRequired(img: Bitmap, selectedImage: Uri): Bitmap? {
    selectedImage.path?.let {
        val orientation = ExifInterface(it).getAttributeInt(
            ExifInterface.TAG_ORIENTATION,
            ExifInterface.ORIENTATION_NORMAL)
        return when (orientation) {
            ExifInterface.ORIENTATION_ROTATE_90 -> rotateImage(img, 90f)
            ExifInterface.ORIENTATION_ROTATE_180 -> rotateImage(img, 180f)
            ExifInterface.ORIENTATION_ROTATE_270 -> rotateImage(img, 270f)
            ExifInterface.ORIENTATION_FLIP_HORIZONTAL -> flip(img, true)
            ExifInterface.ORIENTATION_FLIP_VERTICAL -> flip(img, false)
            else -> img
        }
    }
    return img
}