Kotlin: get file name in Android

FileUtils.kt

private fun getFileName(context: Context, uri: Uri): String {

    if (uri.scheme == "content") {
        val cursor = context.contentResolver.query(uri, null, null, null, null)
        cursor.use {
            if(cursor.moveToFirst()) {
                return cursor.getString(cursor.getColumnIndex(OpenableColumns.DISPLAY_NAME))
            }
        }
    }

    return uri.path.substring(uri.path.lastIndexOf('/') + 1)
}