code: private void handleProgressFormatIntent(@NonNull final Bundle extras) {
          String progressFormat = extras.getString(EXTRA_PROGRESS_FORMAT);
  
          if (!TextUtils.isEmpty(progressFormat)) {
              setProgressFormat(progressFormat);
          }
      }
docs: Handles the intent extra, which specifies the format of the progress, which is shown, when
  the activity is used as a wizard.
  
  @param extras
  The extras of the intent, which has been used to start the activity, as an instance
  of the class {@link Bundle}. The bundle may not be null