Method readAsText

src/plugins/sdcard/src/android/SDcard.java:488–532

(final String filename, final String encoding, final CallbackContext callback)

  }

  private void readAsText(final String filename, final String encoding, final CallbackContext callback) {
    cordova
      .getThreadPool()
      .execute(
        new Runnable() {
          public void run() {
            try {
              String formattedUri = formatUri(filename);
              Uri uri = Uri.parse(formattedUri);
              
              String charSetName = encoding;
              if (charSetName == null || charSetName.isEmpty() || "auto".equalsIgnoreCase(charSetName)) {
                charSetName = "UTF-8";
              }
              if (!Charset.isSupported(charSetName)) {
                callback.error("Charset not supported: " + charSetName);
                return;
              }
              Charset charset = Charset.forName(charSetName);

              InputStream is = context
                .getContentResolver()
                .openInputStream(uri);

              if (is == null) {
                callback.error("File not found");
                return;
              }

              StringBuilder sb = new StringBuilder();
              try (BufferedReader reader = new BufferedReader(new InputStreamReader(is, charset))) {
                char[] buffer = new char[8192];
                int charsRead;
                while ((charsRead = reader.read(buffer)) != -1) {
                  sb.append(buffer, 0, charsRead);
                }
              }
              callback.success(sb.toString());
            } catch (Exception e) {
              callback.error(e.toString());
            }
          }
        }
      );
  }

  private void writeText(
    final String filename,