How to use Interface ContextAware class of org.openqa.selenium package

FileInputStream input = null;
    FileOutputStream output = null;
    try {
        String filePath = new File(getCacheDir(), "tmp").getAbsolutePath();
        android.os.ParcelFileDescriptor pfd = getContentResolver ().openFileDescriptor(
            sharedFileUri, "r");
        if (pfd != null) {
            FileDescriptor fd = pfd . getFileDescriptor ();
            input = new FileInputStream (fd);
            output = new FileOutputStream (filePath);
            int read;
            byte[] bytes = new byte[4096];
            while ((read = input.read(bytes)) != -1) {
                output.write(bytes, 0, read);
            }
            File sharedFile = new File(filePath);
            String finalPath = sharedFile.getPath();
        }
    }catch(Exception ex) {
    } finally {
        try {
            input.close();
            output.close();
        } catch (Exception ignored) {
        }
    }

private fun getAllShownImagesPath(activity: Activity): ArrayList<Albums> {

val uri: Uri
val cursor: Cursor
var cursorBucket: Cursor
val column_index_data: Int
val column_index_folder_name: Int
val listOfAllImages = ArrayList<String>()
var absolutePathOfImage: String? = null
var albumsList = ArrayList<Albums>()
var album: Albums? = null


val BUCKET_GROUP_BY = "1) GROUP BY 1,(2"
val BUCKET_ORDER_BY = "MAX(datetaken) DESC"

uri = android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI

val projection = arrayOf(MediaStore.Images.ImageColumns.BUCKET_ID,
        MediaStore.Images.ImageColumns.BUCKET_DISPLAY_NAME,
        MediaStore.Images.ImageColumns.DATE_TAKEN,
        MediaStore.Images.ImageColumns.DATA)

cursor = activity.contentResolver.query(uri, projection, BUCKET_GROUP_BY, null, BUCKET_ORDER_BY)

if (cursor != null) {
    column_index_data = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA)
    column_index_folder_name = cursor
            .getColumnIndexOrThrow(MediaStore.Images.Media.BUCKET_DISPLAY_NAME)
    while (cursor.moveToNext()) {
        absolutePathOfImage = cursor.getString(column_index_data)
        Log.d("title_apps", "bucket name:" + cursor.getString(column_index_data))

        val selectionArgs = arrayOf("%" + cursor.getString(column_index_folder_name) + "%")
        val selection = MediaStore.Images.Media.DATA + " like ? "
        val projectionOnlyBucket = arrayOf(MediaStore.MediaColumns.DATA, MediaStore.Images.Media.BUCKET_DISPLAY_NAME)

        cursorBucket = activity.contentResolver.query(uri, projectionOnlyBucket, selection, selectionArgs, null)
        Log.d("title_apps", "bucket size:" + cursorBucket.count)

        if (absolutePathOfImage != "" && absolutePathOfImage != null) {
            listOfAllImages.add(absolutePathOfImage)
            albumsList.add(Albums(cursor.getString(column_index_folder_name), absolutePathOfImage, cursorBucket.count, false))
        }
    }
}
return getListOfVideoFolders(albumsList)
}