Maintaining UITableView Scroll Position

gistfile1.m

NSIndexPath *zeroPath = [self.tableView.indexPathsForVisibleRows objectAtIndex:0];
STRPost *zeroPost = [self.fetchedResultsController objectAtIndexPath:zeroPath];
CGRect originalPosition = [self.tableView rectForRowAtIndexPath:zeroPath];
CGPoint oldContentOffset = self.tableView.contentOffset;

[self.managedObjectContext mergeChangesFromContextDidSaveNotification:note];

NSIndexPath *newIndexPath = [self.fetchedResultsController indexPathForObject:zeroPost];
CGRect newPosition = [self.tableView rectForRowAtIndexPath:newIndexPath];
CGFloat offsetPosition = originalPosition.origin.y - oldContentOffset.y;
    
self.tableView.contentOffset = CGPointMake(0.f, (newPosition.origin.y - offsetPosition) + self.tableView.tableHeaderView.frame.size.height);