code: public void setInteger(String key, int value) {
          prefHelper_.prefsEditor_.putInt(key, value);
          prefHelper_.prefsEditor_.apply();
      }
docs: <p>Sets the value of the {@link String} key value supplied in preferences.</p>
  
  @param key   A {@link String} value containing the key to reference.
  @param value An {@link Integer} value to set the preference record to.