Android Studio MediaStore, below SDK 29 save image in sd card fails

I need to save image in sd_card's pictures directory below Android 10.I have implemented scoped storage & This code works in sdk 29 & above, because MediaStore.getExternalVolumeNames was added in sdk 29. Below sdk 29 how to get getContentUri of sd_card .

  val values = ContentValues().apply {
            put(MediaStore.Images.Media.DISPLAY_NAME, destinationFileName)
            put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg")
            put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_PICTURES + File.separator + context.applicationContext.getString(R.string.app_name))
            put(MediaStore.Images.Media.IS_PENDING, 1)
        }

        val storageVolume = if (AppPreferences(context).getSwitchExternalStorage()) MediaStore.getExternalVolumeNames(context).last() else MediaStore.getExternalVolumeNames(context).first()
        val bmp: Bitmap? = BitmapFactory.decodeFile(source)

        val collection = MediaStore.Images.Media.getContentUri(storageVolume)
        val imageUri = context.contentResolver.insert(collection, values)

        context.contentResolver.openOutputStream(imageUri!!).use { out ->
            bmp?.compress(Bitmap.CompressFormat.JPEG, 100, out)
        }

        values.clear()
        values.put(MediaStore.Images.Media.IS_PENDING, 0)
        context.contentResolver.update(imageUri, values, null, null)

Please help me to fix this issue