code: public void hideInstructionList() {
      rvInstructions.stopScroll();
      beginDelayedTransition();
      if (isLandscape()) {
        updateLandscapeConstraintsTo(R.layout.instruction_layout);
      }
      instructionListLayout.setVisibility(GONE);
      onInstructionListVisibilityChanged(false);
    }
docs: Hide the instruction list.
  <p>
  This is based on orientation so the different layouts (for portrait vs. landscape)
  can be animated appropriately.