code: public void registerView(BranchUniversalObject
                                       branchUniversalObject, BranchUniversalObject.RegisterViewStatusListener callback) {
          if (context_ != null) {
              new BranchEvent(BRANCH_STANDARD_EVENT.VIEW_ITEM)
                      .addContentItems(branchUniversalObject)
                      .logEvent(context_);
          }
      }
docs: ------------------------ Content Indexing methods----------------------//