code: @Override
      protected Parcelable onSaveInstanceState() {
          final Bundle bundle = new Bundle();
          bundle.putParcelable("SUPER", super.onSaveInstanceState());
          bundle.putDouble("MIN", normalizedMinValue);
          bundle.putDouble("MAX", normalizedMaxValue);
          return bundle;
      }
docs: Overridden to save instance state when device orientation changes. This method is called automatically if you assign an id to the RangeSeekBar widget using the {@link #setId(int)} method. Other members of this class than the normalized min and max values don't need to be saved.