Reload section without reloading section header

Question

I have a UITableView, where there is a UISegmentedControl in the header view. It should work exactly like in the App Store app: As the user scrolls

Answer 1

Maybe you should try with

[self.tableView reloadRowsAtIndexPaths:[self.tableView indexPathsForVisibleRows] withRowAnimation:UITableViewRowAnimationLeft] //or UITableViewRowAnimationRight

However, I'm not sure but I think it can rise some error in the case where you have less rows to reload than previously.

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Edit

I think you could deal with [tableView beginUpdates] and [tableView endUpdates] to solve your problem.

For example, you have 2 arrays of data to display. Let name them oldArray and newArray. A sample of how what you could do :

- (void)selectedSegmentIndexChanged:(UISegmentedControl *)sender
{
    [self.tableView setDataSource: newArray];
    int nbRowToDelete = [oldArray count];
    int nbRowToInsert = [newArray count];

    NSMutableArray *indexPathsToInsert = [[NSMutableArray alloc] init];
    for (NSInteger i = 0; i < nbRowToInsert; i++) {
        [indexPathsToInsert addObject:[NSIndexPath indexPathForRow:i inSection:section]];
    }

    NSMutableArray *indexPathsToDelete = [[NSMutableArray alloc] init];
    for (NSInteger i = 0; i < nbRowToDelete; i++) {
        [indexPathsToDelete addObject:[NSIndexPath indexPathForRow:i inSection:section]];
    }

    [self.tableView beginUpdates];
    [self.tableView deleteRowsAtIndexPaths:indexPathsToDelete withRowAnimation:UITableViewRowAnimationLeft];
    [self.tableView insertRowsAtIndexPaths:indexPathsToInsert withRowAnimation:UITableViewRowAnimationRight];
    [self.tableView endUpdates];
}