public static String getJsonFromAssets(String filePath) {
        InputStream is;

        Writer writer = new StringWriter();
        char[] buffer = new char[8 * 1024];
        try {
            is = new FileInputStream(new File(filePath));
            Reader reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            int n = 0;
            while ((n = reader.read(buffer)) != -1) {
                writer.write(buffer, 0, n);
            }
            is.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {

        }

        return writer.toString();
    }