Merge "Only switch item animator on content fill if needed" into ub-launcher3-master

                throw new IllegalStateException("There are less empty item views than the number "

                        + "of items to animate to.");

            }

            // Set item animator for content filling animation. The item animator will switch back

            // to the default on completion.

            // Possible that task list loads faster than adapter changes propagate to layout so

            // only start content fill animation if there aren't any pending adapter changes.

            if (!mTaskRecyclerView.hasPendingAdapterUpdates()) {

                // Set item animator for content filling animation. The item animator will switch

                // back to the default on completion

                mTaskRecyclerView.setItemAnimator(mLoadingContentItemAnimator);

            }

            mTaskAdapter.notifyItemRangeRemoved(numActualItems, numEmptyItems - numActualItems);

            mTaskAdapter.notifyItemRangeChanged(

                    0, numActualItems, CHANGE_EVENT_TYPE_EMPTY_TO_CONTENT);