code: private DrawerLayout inflateDrawerLayout(ViewGroup parent){
          DrawerLayout drawer = (DrawerLayout) mActivity.getLayoutInflater()
                  .inflate(R.layout.material_drawer, parent, false);
  
          // Find the associated views
          mDrawerPane = ButterKnife.findById(drawer, R.id.navdrawer);
          mDrawerContentFrame = ButterKnife.findById(drawer, R.id.drawer_content_frame);
          mDrawerHeaderFrame = ButterKnife.findById(mDrawerPane, R.id.header_container);
          mDrawerFooterFrame = ButterKnife.findById(mDrawerPane, R.id.footer);
          mDrawerItemsListContainer = ButterKnife.findById(mDrawerPane, R.id.navdrawer_items_list);
  
          // Return the drawer
          return drawer;
      }
docs: Build the root drawer layout
  
  @return      the root drawer layout