private void initDBFiles() {
        File dir = new File("/tvdatabase/Database");

        if (!dir.exists() || !dir.isDirectory())

        {

            dir.mkdir();

        }

        File fileFactory = new File(dir, "factory.db");

        if (!fileFactory.exists()) {

            loadDbFile(R.raw.factory, fileFactory);

        }

        File fileUserSetting = new File(dir, "user_setting.db");

        if (!fileUserSetting.exists()) {

            loadDbFile(R.raw.user_setting, fileUserSetting);

        }
    }


    private void loadDbFile(int rawId, File file) {
        InputStream dbInputStream = getResources().openRawResource(rawId);
        FileOutputStream fos = null;
        try {
            fos = new FileOutputStream(file);

            byte[] bytes = new byte[1024];
            int length;
            while ((length = dbInputStream.read(bytes)) > 0) {
                fos.write(bytes, 0, length);
            }
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            try {
                fos.close();
                dbInputStream.close();
            } catch (IOException e) {

                // TODO Auto-generated catch block
                e.printStackTrace();

            }
        }
    }