docs: public void setContentView(View view, LayoutParams params) {
          switch (mDragMode) {
              case MenuDrawer.MENU_DRAG_CONTENT:
                  mContentContainer.removeAllViews();
                  mContentContainer.addView(view, params);
                  break;
  
              case MenuDrawer.MENU_DRAG_WINDOW:
                  mActivity.setContentView(view, params);
                  break;
          }
      }