UITableView insert rows without scrolling

The best way I found to get my desired behavior is to not animate the insertion at all. The animations were causing the choppyness.

Instead I am calling:

[tableView reloadData];

// set the content offset to the height of inserted rows 
// (2 rows * 44 points = 88 in this example)
[tableView setContentOffset:CGPointMake(0, 88)]; 

This makes the reload appear at the same time as the content offset change.

If I understand your mission correctly,

I did it in this way:

if(self.tableView.contentOffset.y > ONE_OR_X_ROWS_HEIGHT_YOUDECIDE
{

    self.delayOffset = self.tableView.contentOffset;
    self.delayOffset = CGPointMake(self.delayOffset.x, self.delayOffset.y+ insertedRowCount * ONE_ROW_HEIGHT);

    [self.tableView reloadData];

    [self.tableView setContentOffset:self.delayOffset animated:NO];    


}else
{
    [self.tableView insertRowsAtIndexPath:indexPathArray   WithRowAnimation:UITableViewRowAnimationTop];

}

With this code, If user is in the middle of the table and not the top, the uitableview will reload the new rows without animation and no scrolling. If user is on the top of the table, he will see row insert animation.

Just pay attention in the code, I'm assuming the row's height are equal, if not , just calculate the height of all the new rows you are going to insert. Hope that helps.